diff options
Diffstat (limited to 'ffplay.c')
| -rw-r--r-- | ffplay.c | 3836 |
1 files changed, 3836 insertions, 0 deletions
diff --git a/ffplay.c b/ffplay.c new file mode 100644 index 0000000000..e0bcc7c392 --- /dev/null +++ b/ffplay.c @@ -0,0 +1,3836 @@ +/* + * Copyright (c) 2003 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * simple media player based on the FFmpeg libraries + */ + +#include "config.h" +#include <inttypes.h> +#include <math.h> +#include <limits.h> +#include <signal.h> +#include <stdint.h> + +#include "libavutil/avstring.h" +#include "libavutil/eval.h" +#include "libavutil/mathematics.h" +#include "libavutil/pixdesc.h" +#include "libavutil/imgutils.h" +#include "libavutil/dict.h" +#include "libavutil/parseutils.h" +#include "libavutil/samplefmt.h" +#include "libavutil/avassert.h" +#include "libavutil/time.h" +#include "libavformat/avformat.h" +#include "libavdevice/avdevice.h" +#include "libswscale/swscale.h" +#include "libavutil/opt.h" +#include "libavcodec/avfft.h" +#include "libswresample/swresample.h" + +#if CONFIG_AVFILTER +# include "libavfilter/avfilter.h" +# include "libavfilter/buffersink.h" +# include "libavfilter/buffersrc.h" +#endif + +#include <SDL.h> +#include <SDL_thread.h> + +#include "cmdutils.h" + +#include <assert.h> + +const char program_name[] = "ffplay"; +const int program_birth_year = 2003; + +#define MAX_QUEUE_SIZE (15 * 1024 * 1024) +#define MIN_FRAMES 25 +#define EXTERNAL_CLOCK_MIN_FRAMES 2 +#define EXTERNAL_CLOCK_MAX_FRAMES 10 + +/* Minimum SDL audio buffer size, in samples. */ +#define SDL_AUDIO_MIN_BUFFER_SIZE 512 +/* Calculate actual buffer size keeping in mind not cause too frequent audio callbacks */ +#define SDL_AUDIO_MAX_CALLBACKS_PER_SEC 30 + +/* Step size for volume control */ +#define SDL_VOLUME_STEP (SDL_MIX_MAXVOLUME / 50) + +/* no AV sync correction is done if below the minimum AV sync threshold */ +#define AV_SYNC_THRESHOLD_MIN 0.04 +/* AV sync correction is done if above the maximum AV sync threshold */ +#define AV_SYNC_THRESHOLD_MAX 0.1 +/* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */ +#define AV_SYNC_FRAMEDUP_THRESHOLD 0.1 +/* no AV correction is done if too big error */ +#define AV_NOSYNC_THRESHOLD 10.0 + +/* maximum audio speed change to get correct sync */ +#define SAMPLE_CORRECTION_PERCENT_MAX 10 + +/* external clock speed adjustment constants for realtime sources based on buffer fullness */ +#define EXTERNAL_CLOCK_SPEED_MIN 0.900 +#define EXTERNAL_CLOCK_SPEED_MAX 1.010 +#define EXTERNAL_CLOCK_SPEED_STEP 0.001 + +/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ +#define AUDIO_DIFF_AVG_NB 20 + +/* polls for possible required screen refresh at least this often, should be less than 1/fps */ +#define REFRESH_RATE 0.01 + +/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ +/* TODO: We assume that a decoded and resampled frame fits into this buffer */ +#define SAMPLE_ARRAY_SIZE (8 * 65536) + +#define CURSOR_HIDE_DELAY 1000000 + +static unsigned sws_flags = SWS_BICUBIC; + +typedef struct MyAVPacketList { + AVPacket pkt; + struct MyAVPacketList *next; + int serial; +} MyAVPacketList; + +typedef struct PacketQueue { + MyAVPacketList *first_pkt, *last_pkt; + int nb_packets; + int size; + int abort_request; + int serial; + SDL_mutex *mutex; + SDL_cond *cond; +} PacketQueue; + +#define VIDEO_PICTURE_QUEUE_SIZE 3 +#define SUBPICTURE_QUEUE_SIZE 16 +#define SAMPLE_QUEUE_SIZE 9 +#define FRAME_QUEUE_SIZE FFMAX(SAMPLE_QUEUE_SIZE, FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE)) + +typedef struct AudioParams { + int freq; + int channels; + int64_t channel_layout; + enum AVSampleFormat fmt; + int frame_size; + int bytes_per_sec; +} AudioParams; + +typedef struct Clock { + double pts; /* clock base */ + double pts_drift; /* clock base minus time at which we updated the clock */ + double last_updated; + double speed; + int serial; /* clock is based on a packet with this serial */ + int paused; + int *queue_serial; /* pointer to the current packet queue serial, used for obsolete clock detection */ +} Clock; + +/* Common struct for handling all types of decoded data and allocated render buffers. */ +typedef struct Frame { + AVFrame *frame; + AVSubtitle sub; + AVSubtitleRect **subrects; /* rescaled subtitle rectangles in yuva */ + int serial; + double pts; /* presentation timestamp for the frame */ + double duration; /* estimated duration of the frame */ + int64_t pos; /* byte position of the frame in the input file */ + SDL_Overlay *bmp; + int allocated; + int reallocate; + int width; + int height; + AVRational sar; +} Frame; + +typedef struct FrameQueue { + Frame queue[FRAME_QUEUE_SIZE]; + int rindex; + int windex; + int size; + int max_size; + int keep_last; + int rindex_shown; + SDL_mutex *mutex; + SDL_cond *cond; + PacketQueue *pktq; +} FrameQueue; + +enum { + AV_SYNC_AUDIO_MASTER, /* default choice */ + AV_SYNC_VIDEO_MASTER, + AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ +}; + +typedef struct Decoder { + AVPacket pkt; + AVPacket pkt_temp; + PacketQueue *queue; + AVCodecContext *avctx; + int pkt_serial; + int finished; + int packet_pending; + SDL_cond *empty_queue_cond; + int64_t start_pts; + AVRational start_pts_tb; + int64_t next_pts; + AVRational next_pts_tb; + SDL_Thread *decoder_tid; +} Decoder; + +typedef struct VideoState { + SDL_Thread *read_tid; + AVInputFormat *iformat; + int abort_request; + int force_refresh; + int paused; + int last_paused; + int queue_attachments_req; + int seek_req; + int seek_flags; + int64_t seek_pos; + int64_t seek_rel; + int read_pause_return; + AVFormatContext *ic; + int realtime; + + Clock audclk; + Clock vidclk; + Clock extclk; + + FrameQueue pictq; + FrameQueue subpq; + FrameQueue sampq; + + Decoder auddec; + Decoder viddec; + Decoder subdec; + + int viddec_width; + int viddec_height; + + int audio_stream; + + int av_sync_type; + + double audio_clock; + int audio_clock_serial; + double audio_diff_cum; /* used for AV difference average computation */ + double audio_diff_avg_coef; + double audio_diff_threshold; + int audio_diff_avg_count; + AVStream *audio_st; + PacketQueue audioq; + int audio_hw_buf_size; + uint8_t silence_buf[SDL_AUDIO_MIN_BUFFER_SIZE]; + uint8_t *audio_buf; + uint8_t *audio_buf1; + unsigned int audio_buf_size; /* in bytes */ + unsigned int audio_buf1_size; + int audio_buf_index; /* in bytes */ + int audio_write_buf_size; + int audio_volume; + int muted; + struct AudioParams audio_src; +#if CONFIG_AVFILTER + struct AudioParams audio_filter_src; +#endif + struct AudioParams audio_tgt; + struct SwrContext *swr_ctx; + int frame_drops_early; + int frame_drops_late; + + enum ShowMode { + SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB + } show_mode; + int16_t sample_array[SAMPLE_ARRAY_SIZE]; + int sample_array_index; + int last_i_start; + RDFTContext *rdft; + int rdft_bits; + FFTSample *rdft_data; + int xpos; + double last_vis_time; + + int subtitle_stream; + AVStream *subtitle_st; + PacketQueue subtitleq; + + double frame_timer; + double frame_last_returned_time; + double frame_last_filter_delay; + int video_stream; + AVStream *video_st; + PacketQueue videoq; + double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity +#if !CONFIG_AVFILTER + struct SwsContext *img_convert_ctx; +#endif + struct SwsContext *sub_convert_ctx; + SDL_Rect last_display_rect; + int eof; + + char *filename; + int width, height, xleft, ytop; + int step; + +#if CONFIG_AVFILTER + int vfilter_idx; + AVFilterContext *in_video_filter; // the first filter in the video chain + AVFilterContext *out_video_filter; // the last filter in the video chain + AVFilterContext *in_audio_filter; // the first filter in the audio chain + AVFilterContext *out_audio_filter; // the last filter in the audio chain + AVFilterGraph *agraph; // audio filter graph +#endif + + int last_video_stream, last_audio_stream, last_subtitle_stream; + + SDL_cond *continue_read_thread; +} VideoState; + +/* options specified by the user */ +static AVInputFormat *file_iformat; +static const char *input_filename; +static const char *window_title; +static int fs_screen_width; +static int fs_screen_height; +static int default_width = 640; +static int default_height = 480; +static int screen_width = 0; +static int screen_height = 0; +static int audio_disable; +static int video_disable; +static int subtitle_disable; +static const char* wanted_stream_spec[AVMEDIA_TYPE_NB] = {0}; +static int seek_by_bytes = -1; +static int display_disable; +static int show_status = 1; +static int av_sync_type = AV_SYNC_AUDIO_MASTER; +static int64_t start_time = AV_NOPTS_VALUE; +static int64_t duration = AV_NOPTS_VALUE; +static int fast = 0; +static int genpts = 0; +static int lowres = 0; +static int decoder_reorder_pts = -1; +static int autoexit; +static int exit_on_keydown; +static int exit_on_mousedown; +static int loop = 1; +static int framedrop = -1; +static int infinite_buffer = -1; +static enum ShowMode show_mode = SHOW_MODE_NONE; +static const char *audio_codec_name; +static const char *subtitle_codec_name; +static const char *video_codec_name; +double rdftspeed = 0.02; +static int64_t cursor_last_shown; +static int cursor_hidden = 0; +#if CONFIG_AVFILTER +static const char **vfilters_list = NULL; +static int nb_vfilters = 0; +static char *afilters = NULL; +#endif +static int autorotate = 1; + +/* current context */ +static int is_full_screen; +static int64_t audio_callback_time; + +static AVPacket flush_pkt; + +#define FF_ALLOC_EVENT (SDL_USEREVENT) +#define FF_QUIT_EVENT (SDL_USEREVENT + 2) + +static SDL_Surface *screen; + +#if CONFIG_AVFILTER +static int opt_add_vfilter(void *optctx, const char *opt, const char *arg) +{ + GROW_ARRAY(vfilters_list, nb_vfilters); + vfilters_list[nb_vfilters - 1] = arg; + return 0; +} +#endif + +static inline +int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1, + enum AVSampleFormat fmt2, int64_t channel_count2) +{ + /* If channel count == 1, planar and non-planar formats are the same */ + if (channel_count1 == 1 && channel_count2 == 1) + return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2); + else + return channel_count1 != channel_count2 || fmt1 != fmt2; +} + +static inline +int64_t get_valid_channel_layout(int64_t channel_layout, int channels) +{ + if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels) + return channel_layout; + else + return 0; +} + +static void free_picture(Frame *vp); + +static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt) +{ + MyAVPacketList *pkt1; + + if (q->abort_request) + return -1; + + pkt1 = av_malloc(sizeof(MyAVPacketList)); + if (!pkt1) + return -1; + pkt1->pkt = *pkt; + pkt1->next = NULL; + if (pkt == &flush_pkt) + q->serial++; + pkt1->serial = q->serial; + + if (!q->last_pkt) + q->first_pkt = pkt1; + else + q->last_pkt->next = pkt1; + q->last_pkt = pkt1; + q->nb_packets++; + q->size += pkt1->pkt.size + sizeof(*pkt1); + /* XXX: should duplicate packet data in DV case */ + SDL_CondSignal(q->cond); + return 0; +} + +static int packet_queue_put(PacketQueue *q, AVPacket *pkt) +{ + int ret; + + SDL_LockMutex(q->mutex); + ret = packet_queue_put_private(q, pkt); + SDL_UnlockMutex(q->mutex); + + if (pkt != &flush_pkt && ret < 0) + av_free_packet(pkt); + + return ret; +} + +static int packet_queue_put_nullpacket(PacketQueue *q, int stream_index) +{ + AVPacket pkt1, *pkt = &pkt1; + av_init_packet(pkt); + pkt->data = NULL; + pkt->size = 0; + pkt->stream_index = stream_index; + return packet_queue_put(q, pkt); +} + +/* packet queue handling */ +static int packet_queue_init(PacketQueue *q) +{ + memset(q, 0, sizeof(PacketQueue)); + q->mutex = SDL_CreateMutex(); + if (!q->mutex) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + q->cond = SDL_CreateCond(); + if (!q->cond) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + q->abort_request = 1; + return 0; +} + +static void packet_queue_flush(PacketQueue *q) +{ + MyAVPacketList *pkt, *pkt1; + + SDL_LockMutex(q->mutex); + for (pkt = q->first_pkt; pkt; pkt = pkt1) { + pkt1 = pkt->next; + av_free_packet(&pkt->pkt); + av_freep(&pkt); + } + q->last_pkt = NULL; + q->first_pkt = NULL; + q->nb_packets = 0; + q->size = 0; + SDL_UnlockMutex(q->mutex); +} + +static void packet_queue_destroy(PacketQueue *q) +{ + packet_queue_flush(q); + SDL_DestroyMutex(q->mutex); + SDL_DestroyCond(q->cond); +} + +static void packet_queue_abort(PacketQueue *q) +{ + SDL_LockMutex(q->mutex); + + q->abort_request = 1; + + SDL_CondSignal(q->cond); + + SDL_UnlockMutex(q->mutex); +} + +static void packet_queue_start(PacketQueue *q) +{ + SDL_LockMutex(q->mutex); + q->abort_request = 0; + packet_queue_put_private(q, &flush_pkt); + SDL_UnlockMutex(q->mutex); +} + +/* return < 0 if aborted, 0 if no packet and > 0 if packet. */ +static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial) +{ + MyAVPacketList *pkt1; + int ret; + + SDL_LockMutex(q->mutex); + + for (;;) { + if (q->abort_request) { + ret = -1; + break; + } + + pkt1 = q->first_pkt; + if (pkt1) { + q->first_pkt = pkt1->next; + if (!q->first_pkt) + q->last_pkt = NULL; + q->nb_packets--; + q->size -= pkt1->pkt.size + sizeof(*pkt1); + *pkt = pkt1->pkt; + if (serial) + *serial = pkt1->serial; + av_free(pkt1); + ret = 1; + break; + } else if (!block) { + ret = 0; + break; + } else { + SDL_CondWait(q->cond, q->mutex); + } + } + SDL_UnlockMutex(q->mutex); + return ret; +} + +static void decoder_init(Decoder *d, AVCodecContext *avctx, PacketQueue *queue, SDL_cond *empty_queue_cond) { + memset(d, 0, sizeof(Decoder)); + d->avctx = avctx; + d->queue = queue; + d->empty_queue_cond = empty_queue_cond; + d->start_pts = AV_NOPTS_VALUE; +} + +static int decoder_decode_frame(Decoder *d, AVFrame *frame, AVSubtitle *sub) { + int got_frame = 0; + + do { + int ret = -1; + + if (d->queue->abort_request) + return -1; + + if (!d->packet_pending || d->queue->serial != d->pkt_serial) { + AVPacket pkt; + do { + if (d->queue->nb_packets == 0) + SDL_CondSignal(d->empty_queue_cond); + if (packet_queue_get(d->queue, &pkt, 1, &d->pkt_serial) < 0) + return -1; + if (pkt.data == flush_pkt.data) { + avcodec_flush_buffers(d->avctx); + d->finished = 0; + d->next_pts = d->start_pts; + d->next_pts_tb = d->start_pts_tb; + } + } while (pkt.data == flush_pkt.data || d->queue->serial != d->pkt_serial); + av_free_packet(&d->pkt); + d->pkt_temp = d->pkt = pkt; + d->packet_pending = 1; + } + + switch (d->avctx->codec_type) { + case AVMEDIA_TYPE_VIDEO: + ret = avcodec_decode_video2(d->avctx, frame, &got_frame, &d->pkt_temp); + if (got_frame) { + if (decoder_reorder_pts == -1) { + frame->pts = av_frame_get_best_effort_timestamp(frame); + } else if (decoder_reorder_pts) { + frame->pts = frame->pkt_pts; + } else { + frame->pts = frame->pkt_dts; + } + } + break; + case AVMEDIA_TYPE_AUDIO: + ret = avcodec_decode_audio4(d->avctx, frame, &got_frame, &d->pkt_temp); + if (got_frame) { + AVRational tb = (AVRational){1, frame->sample_rate}; + if (frame->pts != AV_NOPTS_VALUE) + frame->pts = av_rescale_q(frame->pts, d->avctx->time_base, tb); + else if (frame->pkt_pts != AV_NOPTS_VALUE) + frame->pts = av_rescale_q(frame->pkt_pts, av_codec_get_pkt_timebase(d->avctx), tb); + else if (d->next_pts != AV_NOPTS_VALUE) + frame->pts = av_rescale_q(d->next_pts, d->next_pts_tb, tb); + if (frame->pts != AV_NOPTS_VALUE) { + d->next_pts = frame->pts + frame->nb_samples; + d->next_pts_tb = tb; + } + } + break; + case AVMEDIA_TYPE_SUBTITLE: + ret = avcodec_decode_subtitle2(d->avctx, sub, &got_frame, &d->pkt_temp); + break; + } + + if (ret < 0) { + d->packet_pending = 0; + } else { + d->pkt_temp.dts = + d->pkt_temp.pts = AV_NOPTS_VALUE; + if (d->pkt_temp.data) { + if (d->avctx->codec_type != AVMEDIA_TYPE_AUDIO) + ret = d->pkt_temp.size; + d->pkt_temp.data += ret; + d->pkt_temp.size -= ret; + if (d->pkt_temp.size <= 0) + d->packet_pending = 0; + } else { + if (!got_frame) { + d->packet_pending = 0; + d->finished = d->pkt_serial; + } + } + } + } while (!got_frame && !d->finished); + + return got_frame; +} + +static void decoder_destroy(Decoder *d) { + av_free_packet(&d->pkt); +} + +static void frame_queue_unref_item(Frame *vp) +{ + int i; + for (i = 0; i < vp->sub.num_rects; i++) { + av_freep(&vp->subrects[i]->data[0]); + av_freep(&vp->subrects[i]); + } + av_freep(&vp->subrects); + av_frame_unref(vp->frame); + avsubtitle_free(&vp->sub); +} + +static int frame_queue_init(FrameQueue *f, PacketQueue *pktq, int max_size, int keep_last) +{ + int i; + memset(f, 0, sizeof(FrameQueue)); + if (!(f->mutex = SDL_CreateMutex())) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + if (!(f->cond = SDL_CreateCond())) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + f->pktq = pktq; + f->max_size = FFMIN(max_size, FRAME_QUEUE_SIZE); + f->keep_last = !!keep_last; + for (i = 0; i < f->max_size; i++) + if (!(f->queue[i].frame = av_frame_alloc())) + return AVERROR(ENOMEM); + return 0; +} + +static void frame_queue_destory(FrameQueue *f) +{ + int i; + for (i = 0; i < f->max_size; i++) { + Frame *vp = &f->queue[i]; + frame_queue_unref_item(vp); + av_frame_free(&vp->frame); + free_picture(vp); + } + SDL_DestroyMutex(f->mutex); + SDL_DestroyCond(f->cond); +} + +static void frame_queue_signal(FrameQueue *f) +{ + SDL_LockMutex(f->mutex); + SDL_CondSignal(f->cond); + SDL_UnlockMutex(f->mutex); +} + +static Frame *frame_queue_peek(FrameQueue *f) +{ + return &f->queue[(f->rindex + f->rindex_shown) % f->max_size]; +} + +static Frame *frame_queue_peek_next(FrameQueue *f) +{ + return &f->queue[(f->rindex + f->rindex_shown + 1) % f->max_size]; +} + +static Frame *frame_queue_peek_last(FrameQueue *f) +{ + return &f->queue[f->rindex]; +} + +static Frame *frame_queue_peek_writable(FrameQueue *f) +{ + /* wait until we have space to put a new frame */ + SDL_LockMutex(f->mutex); + while (f->size >= f->max_size && + !f->pktq->abort_request) { + SDL_CondWait(f->cond, f->mutex); + } + SDL_UnlockMutex(f->mutex); + + if (f->pktq->abort_request) + return NULL; + + return &f->queue[f->windex]; +} + +static Frame *frame_queue_peek_readable(FrameQueue *f) +{ + /* wait until we have a readable a new frame */ + SDL_LockMutex(f->mutex); + while (f->size - f->rindex_shown <= 0 && + !f->pktq->abort_request) { + SDL_CondWait(f->cond, f->mutex); + } + SDL_UnlockMutex(f->mutex); + + if (f->pktq->abort_request) + return NULL; + + return &f->queue[(f->rindex + f->rindex_shown) % f->max_size]; +} + +static void frame_queue_push(FrameQueue *f) +{ + if (++f->windex == f->max_size) + f->windex = 0; + SDL_LockMutex(f->mutex); + f->size++; + SDL_CondSignal(f->cond); + SDL_UnlockMutex(f->mutex); +} + +static void frame_queue_next(FrameQueue *f) +{ + if (f->keep_last && !f->rindex_shown) { + f->rindex_shown = 1; + return; + } + frame_queue_unref_item(&f->queue[f->rindex]); + if (++f->rindex == f->max_size) + f->rindex = 0; + SDL_LockMutex(f->mutex); + f->size--; + SDL_CondSignal(f->cond); + SDL_UnlockMutex(f->mutex); +} + +/* jump back to the previous frame if available by resetting rindex_shown */ +static int frame_queue_prev(FrameQueue *f) +{ + int ret = f->rindex_shown; + f->rindex_shown = 0; + return ret; +} + +/* return the number of undisplayed frames in the queue */ +static int frame_queue_nb_remaining(FrameQueue *f) +{ + return f->size - f->rindex_shown; +} + +/* return last shown position */ +static int64_t frame_queue_last_pos(FrameQueue *f) +{ + Frame *fp = &f->queue[f->rindex]; + if (f->rindex_shown && fp->serial == f->pktq->serial) + return fp->pos; + else + return -1; +} + +static void decoder_abort(Decoder *d, FrameQueue *fq) +{ + packet_queue_abort(d->queue); + frame_queue_signal(fq); + SDL_WaitThread(d->decoder_tid, NULL); + d->decoder_tid = NULL; + packet_queue_flush(d->queue); +} + +static inline void fill_rectangle(SDL_Surface *screen, + int x, int y, int w, int h, int color, int update) +{ + SDL_Rect rect; + rect.x = x; + rect.y = y; + rect.w = w; + rect.h = h; + SDL_FillRect(screen, &rect, color); + if (update && w > 0 && h > 0) + SDL_UpdateRect(screen, x, y, w, h); +} + +/* draw only the border of a rectangle */ +static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update) +{ + int w1, w2, h1, h2; + + /* fill the background */ + w1 = x; + if (w1 < 0) + w1 = 0; + w2 = width - (x + w); + if (w2 < 0) + w2 = 0; + h1 = y; + if (h1 < 0) + h1 = 0; + h2 = height - (y + h); + if (h2 < 0) + h2 = 0; + fill_rectangle(screen, + xleft, ytop, + w1, height, + color, update); + fill_rectangle(screen, + xleft + width - w2, ytop, + w2, height, + color, update); + fill_rectangle(screen, + xleft + w1, ytop, + width - w1 - w2, h1, + color, update); + fill_rectangle(screen, + xleft + w1, ytop + height - h2, + width - w1 - w2, h2, + color, update); +} + +#define ALPHA_BLEND(a, oldp, newp, s)\ +((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s)) + + + +#define BPP 1 + +static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh) +{ + int x, y, Y, U, V, A; + uint8_t *lum, *cb, *cr; + int dstx, dsty, dstw, dsth; + const AVSubtitleRect *src = rect; + + dstw = av_clip(rect->w, 0, imgw); + dsth = av_clip(rect->h, 0, imgh); + dstx = av_clip(rect->x, 0, imgw - dstw); + dsty = av_clip(rect->y, 0, imgh - dsth); + lum = dst->data[0] + dstx + dsty * dst->linesize[0]; + cb = dst->data[1] + dstx/2 + (dsty >> 1) * dst->linesize[1]; + cr = dst->data[2] + dstx/2 + (dsty >> 1) * dst->linesize[2]; + + for (y = 0; y<dsth; y++) { + for (x = 0; x<dstw; x++) { + Y = src->data[0][x + y*src->linesize[0]]; + A = src->data[3][x + y*src->linesize[3]]; + lum[0] = ALPHA_BLEND(A, lum[0], Y, 0); + lum++; + } + lum += dst->linesize[0] - dstw; + } + + for (y = 0; y<dsth/2; y++) { + for (x = 0; x<dstw/2; x++) { + U = src->data[1][x + y*src->linesize[1]]; + V = src->data[2][x + y*src->linesize[2]]; + A = src->data[3][2*x + 2*y *src->linesize[3]] + + src->data[3][2*x + 1 + 2*y *src->linesize[3]] + + src->data[3][2*x + 1 + (2*y+1)*src->linesize[3]] + + src->data[3][2*x + (2*y+1)*src->linesize[3]]; + cb[0] = ALPHA_BLEND(A>>2, cb[0], U, 0); + cr[0] = ALPHA_BLEND(A>>2, cr[0], V, 0); + cb++; + cr++; + } + cb += dst->linesize[1] - dstw/2; + cr += dst->linesize[2] - dstw/2; + } +} + +static void free_picture(Frame *vp) +{ + if (vp->bmp) { + SDL_FreeYUVOverlay(vp->bmp); + vp->bmp = NULL; + } +} + +static void calculate_display_rect(SDL_Rect *rect, + int scr_xleft, int scr_ytop, int scr_width, int scr_height, + int pic_width, int pic_height, AVRational pic_sar) +{ + float aspect_ratio; + int width, height, x, y; + + if (pic_sar.num == 0) + aspect_ratio = 0; + else + aspect_ratio = av_q2d(pic_sar); + + if (aspect_ratio <= 0.0) + aspect_ratio = 1.0; + aspect_ratio *= (float)pic_width / (float)pic_height; + + /* XXX: we suppose the screen has a 1.0 pixel ratio */ + height = scr_height; + width = ((int)rint(height * aspect_ratio)) & ~1; + if (width > scr_width) { + width = scr_width; + height = ((int)rint(width / aspect_ratio)) & ~1; + } + x = (scr_width - width) / 2; + y = (scr_height - height) / 2; + rect->x = scr_xleft + x; + rect->y = scr_ytop + y; + rect->w = FFMAX(width, 1); + rect->h = FFMAX(height, 1); +} + +static void video_image_display(VideoState *is) +{ + Frame *vp; + Frame *sp; + AVPicture pict; + SDL_Rect rect; + int i; + + vp = frame_queue_peek(&is->pictq); + if (vp->bmp) { + if (is->subtitle_st) { + if (frame_queue_nb_remaining(&is->subpq) > 0) { + sp = frame_queue_peek(&is->subpq); + + if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) { + SDL_LockYUVOverlay (vp->bmp); + + pict.data[0] = vp->bmp->pixels[0]; + pict.data[1] = vp->bmp->pixels[2]; + pict.data[2] = vp->bmp->pixels[1]; + + pict.linesize[0] = vp->bmp->pitches[0]; + pict.linesize[1] = vp->bmp->pitches[2]; + pict.linesize[2] = vp->bmp->pitches[1]; + + for (i = 0; i < sp->sub.num_rects; i++) + blend_subrect(&pict, sp->subrects[i], + vp->bmp->w, vp->bmp->h); + + SDL_UnlockYUVOverlay (vp->bmp); + } + } + } + + calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp->width, vp->height, vp->sar); + + SDL_DisplayYUVOverlay(vp->bmp, &rect); + + if (rect.x != is->last_display_rect.x || rect.y != is->last_display_rect.y || rect.w != is->last_display_rect.w || rect.h != is->last_display_rect.h || is->force_refresh) { + int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); + fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1); + is->last_display_rect = rect; + } + } +} + +static inline int compute_mod(int a, int b) +{ + return a < 0 ? a%b + b : a%b; +} + +static void video_audio_display(VideoState *s) +{ + int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; + int ch, channels, h, h2, bgcolor, fgcolor; + int64_t time_diff; + int rdft_bits, nb_freq; + + for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++) + ; + nb_freq = 1 << (rdft_bits - 1); + + /* compute display index : center on currently output samples */ + channels = s->audio_tgt.channels; + nb_display_channels = channels; + if (!s->paused) { + int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq); + n = 2 * channels; + delay = s->audio_write_buf_size; + delay /= n; + + /* to be more precise, we take into account the time spent since + the last buffer computation */ + if (audio_callback_time) { + time_diff = av_gettime_relative() - audio_callback_time; + delay -= (time_diff * s->audio_tgt.freq) / 1000000; + } + + delay += 2 * data_used; + if (delay < data_used) + delay = data_used; + + i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); + if (s->show_mode == SHOW_MODE_WAVES) { + h = INT_MIN; + for (i = 0; i < 1000; i += channels) { + int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; + int a = s->sample_array[idx]; + int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE]; + int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE]; + int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE]; + int score = a - d; + if (h < score && (b ^ c) < 0) { + h = score; + i_start = idx; + } + } + } + + s->last_i_start = i_start; + } else { + i_start = s->last_i_start; + } + + bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); + if (s->show_mode == SHOW_MODE_WAVES) { + fill_rectangle(screen, + s->xleft, s->ytop, s->width, s->height, + bgcolor, 0); + + fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff); + + /* total height for one channel */ + h = s->height / nb_display_channels; + /* graph height / 2 */ + h2 = (h * 9) / 20; + for (ch = 0; ch < nb_display_channels; ch++) { + i = i_start + ch; + y1 = s->ytop + ch * h + (h / 2); /* position of center line */ + for (x = 0; x < s->width; x++) { + y = (s->sample_array[i] * h2) >> 15; + if (y < 0) { + y = -y; + ys = y1 - y; + } else { + ys = y1; + } + fill_rectangle(screen, + s->xleft + x, ys, 1, y, + fgcolor, 0); + i += channels; + if (i >= SAMPLE_ARRAY_SIZE) + i -= SAMPLE_ARRAY_SIZE; + } + } + + fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff); + + for (ch = 1; ch < nb_display_channels; ch++) { + y = s->ytop + ch * h; + fill_rectangle(screen, + s->xleft, y, s->width, 1, + fgcolor, 0); + } + SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height); + } else { + nb_display_channels= FFMIN(nb_display_channels, 2); + if (rdft_bits != s->rdft_bits) { + av_rdft_end(s->rdft); + av_free(s->rdft_data); + s->rdft = av_rdft_init(rdft_bits, DFT_R2C); + s->rdft_bits = rdft_bits; + s->rdft_data = av_malloc_array(nb_freq, 4 *sizeof(*s->rdft_data)); + } + if (!s->rdft || !s->rdft_data){ + av_log(NULL, AV_LOG_ERROR, "Failed to allocate buffers for RDFT, switching to waves display\n"); + s->show_mode = SHOW_MODE_WAVES; + } else { + FFTSample *data[2]; + for (ch = 0; ch < nb_display_channels; ch++) { + data[ch] = s->rdft_data + 2 * nb_freq * ch; + i = i_start + ch; + for (x = 0; x < 2 * nb_freq; x++) { + double w = (x-nb_freq) * (1.0 / nb_freq); + data[ch][x] = s->sample_array[i] * (1.0 - w * w); + i += channels; + if (i >= SAMPLE_ARRAY_SIZE) + i -= SAMPLE_ARRAY_SIZE; + } + av_rdft_calc(s->rdft, data[ch]); + } + /* Least efficient way to do this, we should of course + * directly access it but it is more than fast enough. */ + for (y = 0; y < s->height; y++) { + double w = 1 / sqrt(nb_freq); + int a = sqrt(w * sqrt(data[0][2 * y + 0] * data[0][2 * y + 0] + data[0][2 * y + 1] * data[0][2 * y + 1])); + int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0] + + data[1][2 * y + 1] * data[1][2 * y + 1])) : a; + a = FFMIN(a, 255); + b = FFMIN(b, 255); + fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2); + + fill_rectangle(screen, + s->xpos, s->height-y, 1, 1, + fgcolor, 0); + } + } + SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height); + if (!s->paused) + s->xpos++; + if (s->xpos >= s->width) + s->xpos= s->xleft; + } +} + +static void stream_component_close(VideoState *is, int stream_index) +{ + AVFormatContext *ic = is->ic; + AVCodecContext *avctx; + + if (stream_index < 0 || stream_index >= ic->nb_streams) + return; + avctx = ic->streams[stream_index]->codec; + + switch (avctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + decoder_abort(&is->auddec, &is->sampq); + SDL_CloseAudio(); + decoder_destroy(&is->auddec); + swr_free(&is->swr_ctx); + av_freep(&is->audio_buf1); + is->audio_buf1_size = 0; + is->audio_buf = NULL; + + if (is->rdft) { + av_rdft_end(is->rdft); + av_freep(&is->rdft_data); + is->rdft = NULL; + is->rdft_bits = 0; + } + break; + case AVMEDIA_TYPE_VIDEO: + decoder_abort(&is->viddec, &is->pictq); + decoder_destroy(&is->viddec); + break; + case AVMEDIA_TYPE_SUBTITLE: + decoder_abort(&is->subdec, &is->subpq); + decoder_destroy(&is->subdec); + break; + default: + break; + } + + ic->streams[stream_index]->discard = AVDISCARD_ALL; + avcodec_close(avctx); + switch (avctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + is->audio_st = NULL; + is->audio_stream = -1; + break; + case AVMEDIA_TYPE_VIDEO: + is->video_st = NULL; + is->video_stream = -1; + break; + case AVMEDIA_TYPE_SUBTITLE: + is->subtitle_st = NULL; + is->subtitle_stream = -1; + break; + default: + break; + } +} + +static void stream_close(VideoState *is) +{ + /* XXX: use a special url_shutdown call to abort parse cleanly */ + is->abort_request = 1; + SDL_WaitThread(is->read_tid, NULL); + + /* close each stream */ + if (is->audio_stream >= 0) + stream_component_close(is, is->audio_stream); + if (is->video_stream >= 0) + stream_component_close(is, is->video_stream); + if (is->subtitle_stream >= 0) + stream_component_close(is, is->subtitle_stream); + + avformat_close_input(&is->ic); + + packet_queue_destroy(&is->videoq); + packet_queue_destroy(&is->audioq); + packet_queue_destroy(&is->subtitleq); + + /* free all pictures */ + frame_queue_destory(&is->pictq); + frame_queue_destory(&is->sampq); + frame_queue_destory(&is->subpq); + SDL_DestroyCond(is->continue_read_thread); +#if !CONFIG_AVFILTER + sws_freeContext(is->img_convert_ctx); +#endif + sws_freeContext(is->sub_convert_ctx); + av_free(is->filename); + av_free(is); +} + +static void do_exit(VideoState *is) +{ + if (is) { + stream_close(is); + } + av_lockmgr_register(NULL); + uninit_opts(); +#if CONFIG_AVFILTER + av_freep(&vfilters_list); +#endif + avformat_network_deinit(); + if (show_status) + printf("\n"); + SDL_Quit(); + av_log(NULL, AV_LOG_QUIET, "%s", ""); + exit(0); +} + +static void sigterm_handler(int sig) +{ + exit(123); +} + +static void set_default_window_size(int width, int height, AVRational sar) +{ + SDL_Rect rect; + calculate_display_rect(&rect, 0, 0, INT_MAX, height, width, height, sar); + default_width = rect.w; + default_height = rect.h; +} + +static int video_open(VideoState *is, int force_set_video_mode, Frame *vp) +{ + int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL; + int w,h; + + if (is_full_screen) flags |= SDL_FULLSCREEN; + else flags |= SDL_RESIZABLE; + + if (vp && vp->width) + set_default_window_size(vp->width, vp->height, vp->sar); + + if (is_full_screen && fs_screen_width) { + w = fs_screen_width; + h = fs_screen_height; + } else if (!is_full_screen && screen_width) { + w = screen_width; + h = screen_height; + } else { + w = default_width; + h = default_height; + } + w = FFMIN(16383, w); + if (screen && is->width == screen->w && screen->w == w + && is->height== screen->h && screen->h == h && !force_set_video_mode) + return 0; + screen = SDL_SetVideoMode(w, h, 0, flags); + if (!screen) { + av_log(NULL, AV_LOG_FATAL, "SDL: could not set video mode - exiting\n"); + do_exit(is); + } + if (!window_title) + window_title = input_filename; + SDL_WM_SetCaption(window_title, window_title); + + is->width = screen->w; + is->height = screen->h; + + return 0; +} + +/* display the current picture, if any */ +static void video_display(VideoState *is) +{ + if (!screen) + video_open(is, 0, NULL); + if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO) + video_audio_display(is); + else if (is->video_st) + video_image_display(is); +} + +static double get_clock(Clock *c) +{ + if (*c->queue_serial != c->serial) + return NAN; + if (c->paused) { + return c->pts; + } else { + double time = av_gettime_relative() / 1000000.0; + return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed); + } +} + +static void set_clock_at(Clock *c, double pts, int serial, double time) +{ + c->pts = pts; + c->last_updated = time; + c->pts_drift = c->pts - time; + c->serial = serial; +} + +static void set_clock(Clock *c, double pts, int serial) +{ + double time = av_gettime_relative() / 1000000.0; + set_clock_at(c, pts, serial, time); +} + +static void set_clock_speed(Clock *c, double speed) +{ + set_clock(c, get_clock(c), c->serial); + c->speed = speed; +} + +static void init_clock(Clock *c, int *queue_serial) +{ + c->speed = 1.0; + c->paused = 0; + c->queue_serial = queue_serial; + set_clock(c, NAN, -1); +} + +static void sync_clock_to_slave(Clock *c, Clock *slave) +{ + double clock = get_clock(c); + double slave_clock = get_clock(slave); + if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD)) + set_clock(c, slave_clock, slave->serial); +} + +static int get_master_sync_type(VideoState *is) { + if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { + if (is->video_st) + return AV_SYNC_VIDEO_MASTER; + else + return AV_SYNC_AUDIO_MASTER; + } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { + if (is->audio_st) + return AV_SYNC_AUDIO_MASTER; + else + return AV_SYNC_EXTERNAL_CLOCK; + } else { + return AV_SYNC_EXTERNAL_CLOCK; + } +} + +/* get the current master clock value */ +static double get_master_clock(VideoState *is) +{ + double val; + + switch (get_master_sync_type(is)) { + case AV_SYNC_VIDEO_MASTER: + val = get_clock(&is->vidclk); + break; + case AV_SYNC_AUDIO_MASTER: + val = get_clock(&is->audclk); + break; + default: + val = get_clock(&is->extclk); + break; + } + return val; +} + +static void check_external_clock_speed(VideoState *is) { + if (is->video_stream >= 0 && is->videoq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES || + is->audio_stream >= 0 && is->audioq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES) { + set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP)); + } else if ((is->video_stream < 0 || is->videoq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES) && + (is->audio_stream < 0 || is->audioq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES)) { + set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP)); + } else { + double speed = is->extclk.speed; + if (speed != 1.0) + set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed)); + } +} + +/* seek in the stream */ +static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes) +{ + if (!is->seek_req) { + is->seek_pos = pos; + is->seek_rel = rel; + is->seek_flags &= ~AVSEEK_FLAG_BYTE; + if (seek_by_bytes) + is->seek_flags |= AVSEEK_FLAG_BYTE; + is->seek_req = 1; + SDL_CondSignal(is->continue_read_thread); + } +} + +/* pause or resume the video */ +static void stream_toggle_pause(VideoState *is) +{ + if (is->paused) { + is->frame_timer += av_gettime_relative() / 1000000.0 - is->vidclk.last_updated; + if (is->read_pause_return != AVERROR(ENOSYS)) { + is->vidclk.paused = 0; + } + set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial); + } + set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial); + is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused; +} + +static void toggle_pause(VideoState *is) +{ + stream_toggle_pause(is); + is->step = 0; +} + +static void toggle_mute(VideoState *is) +{ + is->muted = !is->muted; +} + +static void update_volume(VideoState *is, int sign, int step) +{ + is->audio_volume = av_clip(is->audio_volume + sign * step, 0, SDL_MIX_MAXVOLUME); +} + +static void step_to_next_frame(VideoState *is) +{ + /* if the stream is paused unpause it, then step */ + if (is->paused) + stream_toggle_pause(is); + is->step = 1; +} + +static double compute_target_delay(double delay, VideoState *is) +{ + double sync_threshold, diff = 0; + + /* update delay to follow master synchronisation source */ + if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) { + /* if video is slave, we try to correct big delays by + duplicating or deleting a frame */ + diff = get_clock(&is->vidclk) - get_master_clock(is); + + /* skip or repeat frame. We take into account the + delay to compute the threshold. I still don't know + if it is the best guess */ + sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay)); + if (!isnan(diff) && fabs(diff) < is->max_frame_duration) { + if (diff <= -sync_threshold) + delay = FFMAX(0, delay + diff); + else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD) + delay = delay + diff; + else if (diff >= sync_threshold) + delay = 2 * delay; + } + } + + av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f A-V=%f\n", + delay, -diff); + + return delay; +} + +static double vp_duration(VideoState *is, Frame *vp, Frame *nextvp) { + if (vp->serial == nextvp->serial) { + double duration = nextvp->pts - vp->pts; + if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration) + return vp->duration; + else + return duration; + } else { + return 0.0; + } +} + +static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) { + /* update current video pts */ + set_clock(&is->vidclk, pts, serial); + sync_clock_to_slave(&is->extclk, &is->vidclk); +} + +/* called to display each frame */ +static void video_refresh(void *opaque, double *remaining_time) +{ + VideoState *is = opaque; + double time; + + Frame *sp, *sp2; + + if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime) + check_external_clock_speed(is); + + if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) { + time = av_gettime_relative() / 1000000.0; + if (is->force_refresh || is->last_vis_time + rdftspeed < time) { + video_display(is); + is->last_vis_time = time; + } + *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time); + } + + if (is->video_st) { + int redisplay = 0; + if (is->force_refresh) + redisplay = frame_queue_prev(&is->pictq); +retry: + if (frame_queue_nb_remaining(&is->pictq) == 0) { + // nothing to do, no picture to display in the queue + } else { + double last_duration, duration, delay; + Frame *vp, *lastvp; + + /* dequeue the picture */ + lastvp = frame_queue_peek_last(&is->pictq); + vp = frame_queue_peek(&is->pictq); + + if (vp->serial != is->videoq.serial) { + frame_queue_next(&is->pictq); + redisplay = 0; + goto retry; + } + + if (lastvp->serial != vp->serial && !redisplay) + is->frame_timer = av_gettime_relative() / 1000000.0; + + if (is->paused) + goto display; + + /* compute nominal last_duration */ + last_duration = vp_duration(is, lastvp, vp); + if (redisplay) + delay = 0.0; + else + delay = compute_target_delay(last_duration, is); + + time= av_gettime_relative()/1000000.0; + if (time < is->frame_timer + delay && !redisplay) { + *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time); + return; + } + + is->frame_timer += delay; + if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX) + is->frame_timer = time; + + SDL_LockMutex(is->pictq.mutex); + if (!redisplay && !isnan(vp->pts)) + update_video_pts(is, vp->pts, vp->pos, vp->serial); + SDL_UnlockMutex(is->pictq.mutex); + + if (frame_queue_nb_remaining(&is->pictq) > 1) { + Frame *nextvp = frame_queue_peek_next(&is->pictq); + duration = vp_duration(is, vp, nextvp); + if(!is->step && (redisplay || framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){ + if (!redisplay) + is->frame_drops_late++; + frame_queue_next(&is->pictq); + redisplay = 0; + goto retry; + } + } + + if (is->subtitle_st) { + while (frame_queue_nb_remaining(&is->subpq) > 0) { + sp = frame_queue_peek(&is->subpq); + + if (frame_queue_nb_remaining(&is->subpq) > 1) + sp2 = frame_queue_peek_next(&is->subpq); + else + sp2 = NULL; + + if (sp->serial != is->subtitleq.serial + || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) + || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) + { + frame_queue_next(&is->subpq); + } else { + break; + } + } + } + +display: + /* display picture */ + if (!display_disable && is->show_mode == SHOW_MODE_VIDEO) + video_display(is); + + frame_queue_next(&is->pictq); + + if (is->step && !is->paused) + stream_toggle_pause(is); + } + } + is->force_refresh = 0; + if (show_status) { + static int64_t last_time; + int64_t cur_time; + int aqsize, vqsize, sqsize; + double av_diff; + + cur_time = av_gettime_relative(); + if (!last_time || (cur_time - last_time) >= 30000) { + aqsize = 0; + vqsize = 0; + sqsize = 0; + if (is->audio_st) + aqsize = is->audioq.size; + if (is->video_st) + vqsize = is->videoq.size; + if (is->subtitle_st) + sqsize = is->subtitleq.size; + av_diff = 0; + if (is->audio_st && is->video_st) + av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk); + else if (is->video_st) + av_diff = get_master_clock(is) - get_clock(&is->vidclk); + else if (is->audio_st) + av_diff = get_master_clock(is) - get_clock(&is->audclk); + av_log(NULL, AV_LOG_INFO, + "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", + get_master_clock(is), + (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : " ")), + av_diff, + is->frame_drops_early + is->frame_drops_late, + aqsize / 1024, + vqsize / 1024, + sqsize, + is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0, + is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0); + fflush(stdout); + last_time = cur_time; + } + } +} + +/* allocate a picture (needs to do that in main thread to avoid + potential locking problems */ +static void alloc_picture(VideoState *is) +{ + Frame *vp; + int64_t bufferdiff; + + vp = &is->pictq.queue[is->pictq.windex]; + + free_picture(vp); + + video_open(is, 0, vp); + + vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height, + SDL_YV12_OVERLAY, + screen); + bufferdiff = vp->bmp ? FFMAX(vp->bmp->pixels[0], vp->bmp->pixels[1]) - FFMIN(vp->bmp->pixels[0], vp->bmp->pixels[1]) : 0; + if (!vp->bmp || vp->bmp->pitches[0] < vp->width || bufferdiff < (int64_t)vp->height * vp->bmp->pitches[0]) { + /* SDL allocates a buffer smaller than requested if the video + * overlay hardware is unable to support the requested size. */ + av_log(NULL, AV_LOG_FATAL, + "Error: the video system does not support an image\n" + "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n" + "to reduce the image size.\n", vp->width, vp->height ); + do_exit(is); + } + + SDL_LockMutex(is->pictq.mutex); + vp->allocated = 1; + SDL_CondSignal(is->pictq.cond); + SDL_UnlockMutex(is->pictq.mutex); +} + +static void duplicate_right_border_pixels(SDL_Overlay *bmp) { + int i, width, height; + Uint8 *p, *maxp; + for (i = 0; i < 3; i++) { + width = bmp->w; + height = bmp->h; + if (i > 0) { + width >>= 1; + height >>= 1; + } + if (bmp->pitches[i] > width) { + maxp = bmp->pixels[i] + bmp->pitches[i] * height - 1; + for (p = bmp->pixels[i] + width - 1; p < maxp; p += bmp->pitches[i]) + *(p+1) = *p; + } + } +} + +static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial) +{ + Frame *vp; + +#if defined(DEBUG_SYNC) && 0 + printf("frame_type=%c pts=%0.3f\n", + av_get_picture_type_char(src_frame->pict_type), pts); +#endif + + if (!(vp = frame_queue_peek_writable(&is->pictq))) + return -1; + + vp->sar = src_frame->sample_aspect_ratio; + + /* alloc or resize hardware picture buffer */ + if (!vp->bmp || vp->reallocate || !vp->allocated || + vp->width != src_frame->width || + vp->height != src_frame->height) { + SDL_Event event; + + vp->allocated = 0; + vp->reallocate = 0; + vp->width = src_frame->width; + vp->height = src_frame->height; + + /* the allocation must be done in the main thread to avoid + locking problems. */ + event.type = FF_ALLOC_EVENT; + event.user.data1 = is; + SDL_PushEvent(&event); + + /* wait until the picture is allocated */ + SDL_LockMutex(is->pictq.mutex); + while (!vp->allocated && !is->videoq.abort_request) { + SDL_CondWait(is->pictq.cond, is->pictq.mutex); + } + /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */ + if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) { + while (!vp->allocated && !is->abort_request) { + SDL_CondWait(is->pictq.cond, is->pictq.mutex); + } + } + SDL_UnlockMutex(is->pictq.mutex); + + if (is->videoq.abort_request) + return -1; + } + + /* if the frame is not skipped, then display it */ + if (vp->bmp) { + AVPicture pict = { { 0 } }; + + /* get a pointer on the bitmap */ + SDL_LockYUVOverlay (vp->bmp); + + pict.data[0] = vp->bmp->pixels[0]; + pict.data[1] = vp->bmp->pixels[2]; + pict.data[2] = vp->bmp->pixels[1]; + + pict.linesize[0] = vp->bmp->pitches[0]; + pict.linesize[1] = vp->bmp->pitches[2]; + pict.linesize[2] = vp->bmp->pitches[1]; + +#if CONFIG_AVFILTER + // FIXME use direct rendering + av_picture_copy(&pict, (AVPicture *)src_frame, + src_frame->format, vp->width, vp->height); +#else + { + AVDictionaryEntry *e = av_dict_get(sws_dict, "sws_flags", NULL, 0); + if (e) { + const AVClass *class = sws_get_class(); + const AVOption *o = av_opt_find(&class, "sws_flags", NULL, 0, + AV_OPT_SEARCH_FAKE_OBJ); + int ret = av_opt_eval_flags(&class, o, e->value, &sws_flags); + if (ret < 0) + exit(1); + } + } + + is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx, + vp->width, vp->height, src_frame->format, vp->width, vp->height, + AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL); + if (!is->img_convert_ctx) { + av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n"); + exit(1); + } + sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize, + 0, vp->height, pict.data, pict.linesize); +#endif + /* workaround SDL PITCH_WORKAROUND */ + duplicate_right_border_pixels(vp->bmp); + /* update the bitmap content */ + SDL_UnlockYUVOverlay(vp->bmp); + + vp->pts = pts; + vp->duration = duration; + vp->pos = pos; + vp->serial = serial; + + /* now we can update the picture count */ + frame_queue_push(&is->pictq); + } + return 0; +} + +static int get_video_frame(VideoState *is, AVFrame *frame) +{ + int got_picture; + + if ((got_picture = decoder_decode_frame(&is->viddec, frame, NULL)) < 0) + return -1; + + if (got_picture) { + double dpts = NAN; + + if (frame->pts != AV_NOPTS_VALUE) + dpts = av_q2d(is->video_st->time_base) * frame->pts; + + frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame); + + is->viddec_width = frame->width; + is->viddec_height = frame->height; + + if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) { + if (frame->pts != AV_NOPTS_VALUE) { + double diff = dpts - get_master_clock(is); + if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD && + diff - is->frame_last_filter_delay < 0 && + is->viddec.pkt_serial == is->vidclk.serial && + is->videoq.nb_packets) { + is->frame_drops_early++; + av_frame_unref(frame); + got_picture = 0; + } + } + } + } + + return got_picture; +} + +#if CONFIG_AVFILTER +static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph, + AVFilterContext *source_ctx, AVFilterContext *sink_ctx) +{ + int ret, i; + int nb_filters = graph->nb_filters; + AVFilterInOut *outputs = NULL, *inputs = NULL; + + if (filtergraph) { + outputs = avfilter_inout_alloc(); + inputs = avfilter_inout_alloc(); + if (!outputs || !inputs) { + ret = AVERROR(ENOMEM); + goto fail; + } + + outputs->name = av_strdup("in"); + outputs->filter_ctx = source_ctx; + outputs->pad_idx = 0; + outputs->next = NULL; + + inputs->name = av_strdup("out"); + inputs->filter_ctx = sink_ctx; + inputs->pad_idx = 0; + inputs->next = NULL; + + if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0) + goto fail; + } else { + if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0) + goto fail; + } + + /* Reorder the filters to ensure that inputs of the custom filters are merged first */ + for (i = 0; i < graph->nb_filters - nb_filters; i++) + FFSWAP(AVFilterContext*, graph->filters[i], graph->filters[i + nb_filters]); + + ret = avfilter_graph_config(graph, NULL); +fail: + avfilter_inout_free(&outputs); + avfilter_inout_free(&inputs); + return ret; +} + +static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame) +{ + static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }; + char sws_flags_str[512] = ""; + char buffersrc_args[256]; + int ret; + AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL; + AVCodecContext *codec = is->video_st->codec; + AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL); + AVDictionaryEntry *e = NULL; + + while ((e = av_dict_get(sws_dict, "", e, AV_DICT_IGNORE_SUFFIX))) { + if (!strcmp(e->key, "sws_flags")) { + av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", "flags", e->value); + } else + av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", e->key, e->value); + } + if (strlen(sws_flags_str)) + sws_flags_str[strlen(sws_flags_str)-1] = '\0'; + + graph->scale_sws_opts = av_strdup(sws_flags_str); + + snprintf(buffersrc_args, sizeof(buffersrc_args), + "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d", + frame->width, frame->height, frame->format, + is->video_st->time_base.num, is->video_st->time_base.den, + codec->sample_aspect_ratio.num, FFMAX(codec->sample_aspect_ratio.den, 1)); + if (fr.num && fr.den) + av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den); + + if ((ret = avfilter_graph_create_filter(&filt_src, + avfilter_get_by_name("buffer"), + "ffplay_buffer", buffersrc_args, NULL, + graph)) < 0) + goto fail; + + ret = avfilter_graph_create_filter(&filt_out, + avfilter_get_by_name("buffersink"), + "ffplay_buffersink", NULL, NULL, graph); + if (ret < 0) + goto fail; + + if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) + goto fail; + + last_filter = filt_out; + +/* Note: this macro adds a filter before the lastly added filter, so the + * processing order of the filters is in reverse */ +#define INSERT_FILT(name, arg) do { \ + AVFilterContext *filt_ctx; \ + \ + ret = avfilter_graph_create_filter(&filt_ctx, \ + avfilter_get_by_name(name), \ + "ffplay_" name, arg, NULL, graph); \ + if (ret < 0) \ + goto fail; \ + \ + ret = avfilter_link(filt_ctx, 0, last_filter, 0); \ + if (ret < 0) \ + goto fail; \ + \ + last_filter = filt_ctx; \ +} while (0) + + /* SDL YUV code is not handling odd width/height for some driver + * combinations, therefore we crop the picture to an even width/height. */ + INSERT_FILT("crop", "floor(in_w/2)*2:floor(in_h/2)*2"); + + if (autorotate) { + double theta = get_rotation(is->video_st); + + if (fabs(theta - 90) < 1.0) { + INSERT_FILT("transpose", "clock"); + } else if (fabs(theta - 180) < 1.0) { + INSERT_FILT("hflip", NULL); + INSERT_FILT("vflip", NULL); + } else if (fabs(theta - 270) < 1.0) { + INSERT_FILT("transpose", "cclock"); + } else if (fabs(theta) > 1.0) { + char rotate_buf[64]; + snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta); + INSERT_FILT("rotate", rotate_buf); + } + } + + if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0) + goto fail; + + is->in_video_filter = filt_src; + is->out_video_filter = filt_out; + +fail: + return ret; +} + +static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format) +{ + static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }; + int sample_rates[2] = { 0, -1 }; + int64_t channel_layouts[2] = { 0, -1 }; + int channels[2] = { 0, -1 }; + AVFilterContext *filt_asrc = NULL, *filt_asink = NULL; + char aresample_swr_opts[512] = ""; + AVDictionaryEntry *e = NULL; + char asrc_args[256]; + int ret; + + avfilter_graph_free(&is->agraph); + if (!(is->agraph = avfilter_graph_alloc())) + return AVERROR(ENOMEM); + + while ((e = av_dict_get(swr_opts, "", e, AV_DICT_IGNORE_SUFFIX))) + av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value); + if (strlen(aresample_swr_opts)) + aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0'; + av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0); + + ret = snprintf(asrc_args, sizeof(asrc_args), + "sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d", + is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt), + is->audio_filter_src.channels, + 1, is->audio_filter_src.freq); + if (is->audio_filter_src.channel_layout) + snprintf(asrc_args + ret, sizeof(asrc_args) - ret, + ":channel_layout=0x%"PRIx64, is->audio_filter_src.channel_layout); + + ret = avfilter_graph_create_filter(&filt_asrc, + avfilter_get_by_name("abuffer"), "ffplay_abuffer", + asrc_args, NULL, is->agraph); + if (ret < 0) + goto end; + + + ret = avfilter_graph_create_filter(&filt_asink, + avfilter_get_by_name("abuffersink"), "ffplay_abuffersink", + NULL, NULL, is->agraph); + if (ret < 0) + goto end; + + if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts, AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + + if (force_output_format) { + channel_layouts[0] = is->audio_tgt.channel_layout; + channels [0] = is->audio_tgt.channels; + sample_rates [0] = is->audio_tgt.freq; + if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts, -1, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels , -1, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + if ((ret = av_opt_set_int_list(filt_asink, "sample_rates" , sample_rates , -1, AV_OPT_SEARCH_CHILDREN)) < 0) + goto end; + } + + + if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0) + goto end; + + is->in_audio_filter = filt_asrc; + is->out_audio_filter = filt_asink; + +end: + if (ret < 0) + avfilter_graph_free(&is->agraph); + return ret; +} +#endif /* CONFIG_AVFILTER */ + +static int audio_thread(void *arg) +{ + VideoState *is = arg; + AVFrame *frame = av_frame_alloc(); + Frame *af; +#if CONFIG_AVFILTER + int last_serial = -1; + int64_t dec_channel_layout; + int reconfigure; +#endif + int got_frame = 0; + AVRational tb; + int ret = 0; + + if (!frame) + return AVERROR(ENOMEM); + + do { + if ((got_frame = decoder_decode_frame(&is->auddec, frame, NULL)) < 0) + goto the_end; + + if (got_frame) { + tb = (AVRational){1, frame->sample_rate}; + +#if CONFIG_AVFILTER + dec_channel_layout = get_valid_channel_layout(frame->channel_layout, av_frame_get_channels(frame)); + + reconfigure = + cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels, + frame->format, av_frame_get_channels(frame)) || + is->audio_filter_src.channel_layout != dec_channel_layout || + is->audio_filter_src.freq != frame->sample_rate || + is->auddec.pkt_serial != last_serial; + + if (reconfigure) { + char buf1[1024], buf2[1024]; + av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout); + av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout); + av_log(NULL, AV_LOG_DEBUG, + "Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n", + is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, last_serial, + frame->sample_rate, av_frame_get_channels(frame), av_get_sample_fmt_name(frame->format), buf2, is->auddec.pkt_serial); + + is->audio_filter_src.fmt = frame->format; + is->audio_filter_src.channels = av_frame_get_channels(frame); + is->audio_filter_src.channel_layout = dec_channel_layout; + is->audio_filter_src.freq = frame->sample_rate; + last_serial = is->auddec.pkt_serial; + + if ((ret = configure_audio_filters(is, afilters, 1)) < 0) + goto the_end; + } + + if ((ret = av_buffersrc_add_frame(is->in_audio_filter, frame)) < 0) + goto the_end; + + while ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, frame, 0)) >= 0) { + tb = is->out_audio_filter->inputs[0]->time_base; +#endif + if (!(af = frame_queue_peek_writable(&is->sampq))) + goto the_end; + + af->pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb); + af->pos = av_frame_get_pkt_pos(frame); + af->serial = is->auddec.pkt_serial; + af->duration = av_q2d((AVRational){frame->nb_samples, frame->sample_rate}); + + av_frame_move_ref(af->frame, frame); + frame_queue_push(&is->sampq); + +#if CONFIG_AVFILTER + if (is->audioq.serial != is->auddec.pkt_serial) + break; + } + if (ret == AVERROR_EOF) + is->auddec.finished = is->auddec.pkt_serial; +#endif + } + } while (ret >= 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF); + the_end: +#if CONFIG_AVFILTER + avfilter_graph_free(&is->agraph); +#endif + av_frame_free(&frame); + return ret; +} + +static int decoder_start(Decoder *d, int (*fn)(void *), void *arg) +{ + packet_queue_start(d->queue); + d->decoder_tid = SDL_CreateThread(fn, arg); + if (!d->decoder_tid) { + av_log(NULL, AV_LOG_ERROR, "SDL_CreateThread(): %s\n", SDL_GetError()); + return AVERROR(ENOMEM); + } + return 0; +} + +static int video_thread(void *arg) +{ + VideoState *is = arg; + AVFrame *frame = av_frame_alloc(); + double pts; + double duration; + int ret; + AVRational tb = is->video_st->time_base; + AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL); + +#if CONFIG_AVFILTER + AVFilterGraph *graph = avfilter_graph_alloc(); + AVFilterContext *filt_out = NULL, *filt_in = NULL; + int last_w = 0; + int last_h = 0; + enum AVPixelFormat last_format = -2; + int last_serial = -1; + int last_vfilter_idx = 0; + if (!graph) { + av_frame_free(&frame); + return AVERROR(ENOMEM); + } + +#endif + + if (!frame) { +#if CONFIG_AVFILTER + avfilter_graph_free(&graph); +#endif + return AVERROR(ENOMEM); + } + + for (;;) { + ret = get_video_frame(is, frame); + if (ret < 0) + goto the_end; + if (!ret) + continue; + +#if CONFIG_AVFILTER + if ( last_w != frame->width + || last_h != frame->height + || last_format != frame->format + || last_serial != is->viddec.pkt_serial + || last_vfilter_idx != is->vfilter_idx) { + av_log(NULL, AV_LOG_DEBUG, + "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n", + last_w, last_h, + (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial, + frame->width, frame->height, + (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), is->viddec.pkt_serial); + avfilter_graph_free(&graph); + graph = avfilter_graph_alloc(); + if ((ret = configure_video_filters(graph, is, vfilters_list ? vfilters_list[is->vfilter_idx] : NULL, frame)) < 0) { + SDL_Event event; + event.type = FF_QUIT_EVENT; + event.user.data1 = is; + SDL_PushEvent(&event); + goto the_end; + } + filt_in = is->in_video_filter; + filt_out = is->out_video_filter; + last_w = frame->width; + last_h = frame->height; + last_format = frame->format; + last_serial = is->viddec.pkt_serial; + last_vfilter_idx = is->vfilter_idx; + frame_rate = filt_out->inputs[0]->frame_rate; + } + + ret = av_buffersrc_add_frame(filt_in, frame); + if (ret < 0) + goto the_end; + + while (ret >= 0) { + is->frame_last_returned_time = av_gettime_relative() / 1000000.0; + + ret = av_buffersink_get_frame_flags(filt_out, frame, 0); + if (ret < 0) { + if (ret == AVERROR_EOF) + is->viddec.finished = is->viddec.pkt_serial; + ret = 0; + break; + } + + is->frame_last_filter_delay = av_gettime_relative() / 1000000.0 - is->frame_last_returned_time; + if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0) + is->frame_last_filter_delay = 0; + tb = filt_out->inputs[0]->time_base; +#endif + duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0); + pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb); + ret = queue_picture(is, frame, pts, duration, av_frame_get_pkt_pos(frame), is->viddec.pkt_serial); + av_frame_unref(frame); +#if CONFIG_AVFILTER + } +#endif + + if (ret < 0) + goto the_end; + } + the_end: +#if CONFIG_AVFILTER + avfilter_graph_free(&graph); +#endif + av_frame_free(&frame); + return 0; +} + +static int subtitle_thread(void *arg) +{ + VideoState *is = arg; + Frame *sp; + int got_subtitle; + double pts; + int i; + + for (;;) { + if (!(sp = frame_queue_peek_writable(&is->subpq))) + return 0; + + if ((got_subtitle = decoder_decode_frame(&is->subdec, NULL, &sp->sub)) < 0) + break; + + pts = 0; + + if (got_subtitle && sp->sub.format == 0) { + if (sp->sub.pts != AV_NOPTS_VALUE) + pts = sp->sub.pts / (double)AV_TIME_BASE; + sp->pts = pts; + sp->serial = is->subdec.pkt_serial; + if (!(sp->subrects = av_mallocz_array(sp->sub.num_rects, sizeof(AVSubtitleRect*)))) { + av_log(NULL, AV_LOG_FATAL, "Cannot allocate subrects\n"); + exit(1); + } + + for (i = 0; i < sp->sub.num_rects; i++) + { + int in_w = sp->sub.rects[i]->w; + int in_h = sp->sub.rects[i]->h; + int subw = is->subdec.avctx->width ? is->subdec.avctx->width : is->viddec_width; + int subh = is->subdec.avctx->height ? is->subdec.avctx->height : is->viddec_height; + int out_w = is->viddec_width ? in_w * is->viddec_width / subw : in_w; + int out_h = is->viddec_height ? in_h * is->viddec_height / subh : in_h; + + if (!(sp->subrects[i] = av_mallocz(sizeof(AVSubtitleRect))) || + av_image_alloc(sp->subrects[i]->data, sp->subrects[i]->linesize, out_w, out_h, AV_PIX_FMT_YUVA420P, 16) < 0) { + av_log(NULL, AV_LOG_FATAL, "Cannot allocate subtitle data\n"); + exit(1); + } + + is->sub_convert_ctx = sws_getCachedContext(is->sub_convert_ctx, + in_w, in_h, AV_PIX_FMT_PAL8, out_w, out_h, + AV_PIX_FMT_YUVA420P, sws_flags, NULL, NULL, NULL); + if (!is->sub_convert_ctx) { + av_log(NULL, AV_LOG_FATAL, "Cannot initialize the sub conversion context\n"); + exit(1); + } + sws_scale(is->sub_convert_ctx, + (void*)sp->sub.rects[i]->data, sp->sub.rects[i]->linesize, + 0, in_h, sp->subrects[i]->data, sp->subrects[i]->linesize); + + sp->subrects[i]->w = out_w; + sp->subrects[i]->h = out_h; + sp->subrects[i]->x = sp->sub.rects[i]->x * out_w / in_w; + sp->subrects[i]->y = sp->sub.rects[i]->y * out_h / in_h; + } + + /* now we can update the picture count */ + frame_queue_push(&is->subpq); + } else if (got_subtitle) { + avsubtitle_free(&sp->sub); + } + } + return 0; +} + +/* copy samples for viewing in editor window */ +static void update_sample_display(VideoState *is, short *samples, int samples_size) +{ + int size, len; + + size = samples_size / sizeof(short); + while (size > 0) { + len = SAMPLE_ARRAY_SIZE - is->sample_array_index; + if (len > size) + len = size; + memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); + samples += len; + is->sample_array_index += len; + if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) + is->sample_array_index = 0; + size -= len; + } +} + +/* return the wanted number of samples to get better sync if sync_type is video + * or external master clock */ +static int synchronize_audio(VideoState *is, int nb_samples) +{ + int wanted_nb_samples = nb_samples; + + /* if not master, then we try to remove or add samples to correct the clock */ + if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) { + double diff, avg_diff; + int min_nb_samples, max_nb_samples; + + diff = get_clock(&is->audclk) - get_master_clock(is); + + if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) { + is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; + if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { + /* not enough measures to have a correct estimate */ + is->audio_diff_avg_count++; + } else { + /* estimate the A-V difference */ + avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); + + if (fabs(avg_diff) >= is->audio_diff_threshold) { + wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq); + min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100)); + max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100)); + wanted_nb_samples = av_clip(wanted_nb_samples, min_nb_samples, max_nb_samples); + } + av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n", + diff, avg_diff, wanted_nb_samples - nb_samples, + is->audio_clock, is->audio_diff_threshold); + } + } else { + /* too big difference : may be initial PTS errors, so + reset A-V filter */ + is->audio_diff_avg_count = 0; + is->audio_diff_cum = 0; + } + } + + return wanted_nb_samples; +} + +/** + * Decode one audio frame and return its uncompressed size. + * + * The processed audio frame is decoded, converted if required, and + * stored in is->audio_buf, with size in bytes given by the return + * value. + */ +static int audio_decode_frame(VideoState *is) +{ + int data_size, resampled_data_size; + int64_t dec_channel_layout; + av_unused double audio_clock0; + int wanted_nb_samples; + Frame *af; + + if (is->paused) + return -1; + + do { +#if defined(_WIN32) + while (frame_queue_nb_remaining(&is->sampq) == 0) { + if ((av_gettime_relative() - audio_callback_time) > 1000000LL * is->audio_hw_buf_size / is->audio_tgt.bytes_per_sec / 2) + return -1; + av_usleep (1000); + } +#endif + if (!(af = frame_queue_peek_readable(&is->sampq))) + return -1; + frame_queue_next(&is->sampq); + } while (af->serial != is->audioq.serial); + + data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(af->frame), + af->frame->nb_samples, + af->frame->format, 1); + + dec_channel_layout = + (af->frame->channel_layout && av_frame_get_channels(af->frame) == av_get_channel_layout_nb_channels(af->frame->channel_layout)) ? + af->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(af->frame)); + wanted_nb_samples = synchronize_audio(is, af->frame->nb_samples); + + if (af->frame->format != is->audio_src.fmt || + dec_channel_layout != is->audio_src.channel_layout || + af->frame->sample_rate != is->audio_src.freq || + (wanted_nb_samples != af->frame->nb_samples && !is->swr_ctx)) { + swr_free(&is->swr_ctx); + is->swr_ctx = swr_alloc_set_opts(NULL, + is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq, + dec_channel_layout, af->frame->format, af->frame->sample_rate, + 0, NULL); + if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) { + av_log(NULL, AV_LOG_ERROR, + "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n", + af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), av_frame_get_channels(af->frame), + is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels); + swr_free(&is->swr_ctx); + return -1; + } + is->audio_src.channel_layout = dec_channel_layout; + is->audio_src.channels = av_frame_get_channels(af->frame); + is->audio_src.freq = af->frame->sample_rate; + is->audio_src.fmt = af->frame->format; + } + + if (is->swr_ctx) { + const uint8_t **in = (const uint8_t **)af->frame->extended_data; + uint8_t **out = &is->audio_buf1; + int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate + 256; + int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0); + int len2; + if (out_size < 0) { + av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n"); + return -1; + } + if (wanted_nb_samples != af->frame->nb_samples) { + if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - af->frame->nb_samples) * is->audio_tgt.freq / af->frame->sample_rate, + wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate) < 0) { + av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n"); + return -1; + } + } + av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size); + if (!is->audio_buf1) + return AVERROR(ENOMEM); + len2 = swr_convert(is->swr_ctx, out, out_count, in, af->frame->nb_samples); + if (len2 < 0) { + av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n"); + return -1; + } + if (len2 == out_count) { + av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n"); + if (swr_init(is->swr_ctx) < 0) + swr_free(&is->swr_ctx); + } + is->audio_buf = is->audio_buf1; + resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt); + } else { + is->audio_buf = af->frame->data[0]; + resampled_data_size = data_size; + } + + audio_clock0 = is->audio_clock; + /* update the audio clock with the pts */ + if (!isnan(af->pts)) + is->audio_clock = af->pts + (double) af->frame->nb_samples / af->frame->sample_rate; + else + is->audio_clock = NAN; + is->audio_clock_serial = af->serial; +#ifdef DEBUG + { + static double last_clock; + printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n", + is->audio_clock - last_clock, + is->audio_clock, audio_clock0); + last_clock = is->audio_clock; + } +#endif + return resampled_data_size; +} + +/* prepare a new audio buffer */ +static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) +{ + VideoState *is = opaque; + int audio_size, len1; + + audio_callback_time = av_gettime_relative(); + + while (len > 0) { + if (is->audio_buf_index >= is->audio_buf_size) { + audio_size = audio_decode_frame(is); + if (audio_size < 0) { + /* if error, just output silence */ + is->audio_buf = is->silence_buf; + is->audio_buf_size = sizeof(is->silence_buf) / is->audio_tgt.frame_size * is->audio_tgt.frame_size; + } else { + if (is->show_mode != SHOW_MODE_VIDEO) + update_sample_display(is, (int16_t *)is->audio_buf, audio_size); + is->audio_buf_size = audio_size; + } + is->audio_buf_index = 0; + } + len1 = is->audio_buf_size - is->audio_buf_index; + if (len1 > len) + len1 = len; + if (!is->muted && is->audio_volume == SDL_MIX_MAXVOLUME) + memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); + else { + memset(stream, is->silence_buf[0], len1); + if (!is->muted) + SDL_MixAudio(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1, is->audio_volume); + } + len -= len1; + stream += len1; + is->audio_buf_index += len1; + } + is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index; + /* Let's assume the audio driver that is used by SDL has two periods. */ + if (!isnan(is->audio_clock)) { + set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / is->audio_tgt.bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0); + sync_clock_to_slave(&is->extclk, &is->audclk); + } +} + +static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params) +{ + SDL_AudioSpec wanted_spec, spec; + const char *env; + static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6}; + static const int next_sample_rates[] = {0, 44100, 48000, 96000, 192000}; + int next_sample_rate_idx = FF_ARRAY_ELEMS(next_sample_rates) - 1; + + env = SDL_getenv("SDL_AUDIO_CHANNELS"); + if (env) { + wanted_nb_channels = atoi(env); + wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); + } + if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) { + wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); + wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX; + } + wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout); + wanted_spec.channels = wanted_nb_channels; + wanted_spec.freq = wanted_sample_rate; + if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) { + av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n"); + return -1; + } + while (next_sample_rate_idx && next_sample_rates[next_sample_rate_idx] >= wanted_spec.freq) + next_sample_rate_idx--; + wanted_spec.format = AUDIO_S16SYS; + wanted_spec.silence = 0; + wanted_spec.samples = FFMAX(SDL_AUDIO_MIN_BUFFER_SIZE, 2 << av_log2(wanted_spec.freq / SDL_AUDIO_MAX_CALLBACKS_PER_SEC)); + wanted_spec.callback = sdl_audio_callback; + wanted_spec.userdata = opaque; + while (SDL_OpenAudio(&wanted_spec, &spec) < 0) { + av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels, %d Hz): %s\n", + wanted_spec.channels, wanted_spec.freq, SDL_GetError()); + wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)]; + if (!wanted_spec.channels) { + wanted_spec.freq = next_sample_rates[next_sample_rate_idx--]; + wanted_spec.channels = wanted_nb_channels; + if (!wanted_spec.freq) { + av_log(NULL, AV_LOG_ERROR, + "No more combinations to try, audio open failed\n"); + return -1; + } + } + wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels); + } + if (spec.format != AUDIO_S16SYS) { + av_log(NULL, AV_LOG_ERROR, + "SDL advised audio format %d is not supported!\n", spec.format); + return -1; + } + if (spec.channels != wanted_spec.channels) { + wanted_channel_layout = av_get_default_channel_layout(spec.channels); + if (!wanted_channel_layout) { + av_log(NULL, AV_LOG_ERROR, + "SDL advised channel count %d is not supported!\n", spec.channels); + return -1; + } + } + + audio_hw_params->fmt = AV_SAMPLE_FMT_S16; + audio_hw_params->freq = spec.freq; + audio_hw_params->channel_layout = wanted_channel_layout; + audio_hw_params->channels = spec.channels; + audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->channels, 1, audio_hw_params->fmt, 1); + audio_hw_params->bytes_per_sec = av_samples_get_buffer_size(NULL, audio_hw_params->channels, audio_hw_params->freq, audio_hw_params->fmt, 1); + if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) { + av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n"); + return -1; + } + return spec.size; +} + +/* open a given stream. Return 0 if OK */ +static int stream_component_open(VideoState *is, int stream_index) +{ + AVFormatContext *ic = is->ic; + AVCodecContext *avctx; + AVCodec *codec; + const char *forced_codec_name = NULL; + AVDictionary *opts; + AVDictionaryEntry *t = NULL; + int sample_rate, nb_channels; + int64_t channel_layout; + int ret = 0; + int stream_lowres = lowres; + + if (stream_index < 0 || stream_index >= ic->nb_streams) + return -1; + avctx = ic->streams[stream_index]->codec; + + codec = avcodec_find_decoder(avctx->codec_id); + + switch(avctx->codec_type){ + case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break; + case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break; + case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break; + } + if (forced_codec_name) + codec = avcodec_find_decoder_by_name(forced_codec_name); + if (!codec) { + if (forced_codec_name) av_log(NULL, AV_LOG_WARNING, + "No codec could be found with name '%s'\n", forced_codec_name); + else av_log(NULL, AV_LOG_WARNING, + "No codec could be found with id %d\n", avctx->codec_id); + return -1; + } + + avctx->codec_id = codec->id; + if(stream_lowres > av_codec_get_max_lowres(codec)){ + av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n", + av_codec_get_max_lowres(codec)); + stream_lowres = av_codec_get_max_lowres(codec); + } + av_codec_set_lowres(avctx, stream_lowres); + +#if FF_API_EMU_EDGE + if(stream_lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE; +#endif + if (fast) + avctx->flags2 |= AV_CODEC_FLAG2_FAST; +#if FF_API_EMU_EDGE + if(codec->capabilities & AV_CODEC_CAP_DR1) + avctx->flags |= CODEC_FLAG_EMU_EDGE; +#endif + + opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec); + if (!av_dict_get(opts, "threads", NULL, 0)) + av_dict_set(&opts, "threads", "auto", 0); + if (stream_lowres) + av_dict_set_int(&opts, "lowres", stream_lowres, 0); + if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO) + av_dict_set(&opts, "refcounted_frames", "1", 0); + if ((ret = avcodec_open2(avctx, codec, &opts)) < 0) { + goto fail; + } + if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { + av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); + ret = AVERROR_OPTION_NOT_FOUND; + goto fail; + } + + is->eof = 0; + ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; + switch (avctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: +#if CONFIG_AVFILTER + { + AVFilterLink *link; + + is->audio_filter_src.freq = avctx->sample_rate; + is->audio_filter_src.channels = avctx->channels; + is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels); + is->audio_filter_src.fmt = avctx->sample_fmt; + if ((ret = configure_audio_filters(is, afilters, 0)) < 0) + goto fail; + link = is->out_audio_filter->inputs[0]; + sample_rate = link->sample_rate; + nb_channels = link->channels; + channel_layout = link->channel_layout; + } +#else + sample_rate = avctx->sample_rate; + nb_channels = avctx->channels; + channel_layout = avctx->channel_layout; +#endif + + /* prepare audio output */ + if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0) + goto fail; + is->audio_hw_buf_size = ret; + is->audio_src = is->audio_tgt; + is->audio_buf_size = 0; + is->audio_buf_index = 0; + + /* init averaging filter */ + is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); + is->audio_diff_avg_count = 0; + /* since we do not have a precise anough audio fifo fullness, + we correct audio sync only if larger than this threshold */ + is->audio_diff_threshold = (double)(is->audio_hw_buf_size) / is->audio_tgt.bytes_per_sec; + + is->audio_stream = stream_index; + is->audio_st = ic->streams[stream_index]; + + decoder_init(&is->auddec, avctx, &is->audioq, is->continue_read_thread); + if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek) { + is->auddec.start_pts = is->audio_st->start_time; + is->auddec.start_pts_tb = is->audio_st->time_base; + } + if ((ret = decoder_start(&is->auddec, audio_thread, is)) < 0) + goto fail; + SDL_PauseAudio(0); + break; + case AVMEDIA_TYPE_VIDEO: + is->video_stream = stream_index; + is->video_st = ic->streams[stream_index]; + + is->viddec_width = avctx->width; + is->viddec_height = avctx->height; + + decoder_init(&is->viddec, avctx, &is->videoq, is->continue_read_thread); + if ((ret = decoder_start(&is->viddec, video_thread, is)) < 0) + goto fail; + is->queue_attachments_req = 1; + break; + case AVMEDIA_TYPE_SUBTITLE: + is->subtitle_stream = stream_index; + is->subtitle_st = ic->streams[stream_index]; + + decoder_init(&is->subdec, avctx, &is->subtitleq, is->continue_read_thread); + if ((ret = decoder_start(&is->subdec, subtitle_thread, is)) < 0) + goto fail; + break; + default: + break; + } + +fail: + av_dict_free(&opts); + + return ret; +} + +static int decode_interrupt_cb(void *ctx) +{ + VideoState *is = ctx; + return is->abort_request; +} + +static int is_realtime(AVFormatContext *s) +{ + if( !strcmp(s->iformat->name, "rtp") + || !strcmp(s->iformat->name, "rtsp") + || !strcmp(s->iformat->name, "sdp") + ) + return 1; + + if(s->pb && ( !strncmp(s->filename, "rtp:", 4) + || !strncmp(s->filename, "udp:", 4) + ) + ) + return 1; + return 0; +} + +/* this thread gets the stream from the disk or the network */ +static int read_thread(void *arg) +{ + VideoState *is = arg; + AVFormatContext *ic = NULL; + int err, i, ret; + int st_index[AVMEDIA_TYPE_NB]; + AVPacket pkt1, *pkt = &pkt1; + int64_t stream_start_time; + int pkt_in_play_range = 0; + AVDictionaryEntry *t; + AVDictionary **opts; + int orig_nb_streams; + SDL_mutex *wait_mutex = SDL_CreateMutex(); + int scan_all_pmts_set = 0; + int64_t pkt_ts; + + if (!wait_mutex) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); + ret = AVERROR(ENOMEM); + goto fail; + } + + memset(st_index, -1, sizeof(st_index)); + is->last_video_stream = is->video_stream = -1; + is->last_audio_stream = is->audio_stream = -1; + is->last_subtitle_stream = is->subtitle_stream = -1; + is->eof = 0; + + ic = avformat_alloc_context(); + if (!ic) { + av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n"); + ret = AVERROR(ENOMEM); + goto fail; + } + ic->interrupt_callback.callback = decode_interrupt_cb; + ic->interrupt_callback.opaque = is; + if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) { + av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE); + scan_all_pmts_set = 1; + } + err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); + if (err < 0) { + print_error(is->filename, err); + ret = -1; + goto fail; + } + if (scan_all_pmts_set) + av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE); + + if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { + av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); + ret = AVERROR_OPTION_NOT_FOUND; + goto fail; + } + is->ic = ic; + + if (genpts) + ic->flags |= AVFMT_FLAG_GENPTS; + + av_format_inject_global_side_data(ic); + + opts = setup_find_stream_info_opts(ic, codec_opts); + orig_nb_streams = ic->nb_streams; + + err = avformat_find_stream_info(ic, opts); + + for (i = 0; i < orig_nb_streams; i++) + av_dict_free(&opts[i]); + av_freep(&opts); + + if (err < 0) { + av_log(NULL, AV_LOG_WARNING, + "%s: could not find codec parameters\n", is->filename); + ret = -1; + goto fail; + } + + if (ic->pb) + ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end + + if (seek_by_bytes < 0) + seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name); + + is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0; + + if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0))) + window_title = av_asprintf("%s - %s", t->value, input_filename); + + /* if seeking requested, we execute it */ + if (start_time != AV_NOPTS_VALUE) { + int64_t timestamp; + + timestamp = start_time; + /* add the stream start time */ + if (ic->start_time != AV_NOPTS_VALUE) + timestamp += ic->start_time; + ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); + if (ret < 0) { + av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n", + is->filename, (double)timestamp / AV_TIME_BASE); + } + } + + is->realtime = is_realtime(ic); + + if (show_status) + av_dump_format(ic, 0, is->filename, 0); + + for (i = 0; i < ic->nb_streams; i++) { + AVStream *st = ic->streams[i]; + enum AVMediaType type = st->codec->codec_type; + st->discard = AVDISCARD_ALL; + if (wanted_stream_spec[type] && st_index[type] == -1) + if (avformat_match_stream_specifier(ic, st, wanted_stream_spec[type]) > 0) + st_index[type] = i; + } + for (i = 0; i < AVMEDIA_TYPE_NB; i++) { + if (wanted_stream_spec[i] && st_index[i] == -1) { + av_log(NULL, AV_LOG_ERROR, "Stream specifier %s does not match any %s stream\n", wanted_stream_spec[i], av_get_media_type_string(i)); + st_index[i] = INT_MAX; + } + } + + if (!video_disable) + st_index[AVMEDIA_TYPE_VIDEO] = + av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, + st_index[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); + if (!audio_disable) + st_index[AVMEDIA_TYPE_AUDIO] = + av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, + st_index[AVMEDIA_TYPE_AUDIO], + st_index[AVMEDIA_TYPE_VIDEO], + NULL, 0); + if (!video_disable && !subtitle_disable) + st_index[AVMEDIA_TYPE_SUBTITLE] = + av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, + st_index[AVMEDIA_TYPE_SUBTITLE], + (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? + st_index[AVMEDIA_TYPE_AUDIO] : + st_index[AVMEDIA_TYPE_VIDEO]), + NULL, 0); + + is->show_mode = show_mode; + if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { + AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]]; + AVCodecContext *avctx = st->codec; + AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL); + if (avctx->width) + set_default_window_size(avctx->width, avctx->height, sar); + } + + /* open the streams */ + if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { + stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); + } + + ret = -1; + if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { + ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); + } + if (is->show_mode == SHOW_MODE_NONE) + is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT; + + if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { + stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); + } + + if (is->video_stream < 0 && is->audio_stream < 0) { + av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n", + is->filename); + ret = -1; + goto fail; + } + + if (infinite_buffer < 0 && is->realtime) + infinite_buffer = 1; + + for (;;) { + if (is->abort_request) + break; + if (is->paused != is->last_paused) { + is->last_paused = is->paused; + if (is->paused) + is->read_pause_return = av_read_pause(ic); + else + av_read_play(ic); + } +#if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL + if (is->paused && + (!strcmp(ic->iformat->name, "rtsp") || + (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) { + /* wait 10 ms to avoid trying to get another packet */ + /* XXX: horrible */ + SDL_Delay(10); + continue; + } +#endif + if (is->seek_req) { + int64_t seek_target = is->seek_pos; + int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; + int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; +// FIXME the +-2 is due to rounding being not done in the correct direction in generation +// of the seek_pos/seek_rel variables + + ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); + if (ret < 0) { + av_log(NULL, AV_LOG_ERROR, + "%s: error while seeking\n", is->ic->filename); + } else { + if (is->audio_stream >= 0) { + packet_queue_flush(&is->audioq); + packet_queue_put(&is->audioq, &flush_pkt); + } + if (is->subtitle_stream >= 0) { + packet_queue_flush(&is->subtitleq); + packet_queue_put(&is->subtitleq, &flush_pkt); + } + if (is->video_stream >= 0) { + packet_queue_flush(&is->videoq); + packet_queue_put(&is->videoq, &flush_pkt); + } + if (is->seek_flags & AVSEEK_FLAG_BYTE) { + set_clock(&is->extclk, NAN, 0); + } else { + set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0); + } + } + is->seek_req = 0; + is->queue_attachments_req = 1; + is->eof = 0; + if (is->paused) + step_to_next_frame(is); + } + if (is->queue_attachments_req) { + if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) { + AVPacket copy; + if ((ret = av_copy_packet(©, &is->video_st->attached_pic)) < 0) + goto fail; + packet_queue_put(&is->videoq, ©); + packet_queue_put_nullpacket(&is->videoq, is->video_stream); + } + is->queue_attachments_req = 0; + } + + /* if the queue are full, no need to read more */ + if (infinite_buffer<1 && + (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE + || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request) + && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request + || (is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) + && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) { + /* wait 10 ms */ + SDL_LockMutex(wait_mutex); + SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); + SDL_UnlockMutex(wait_mutex); + continue; + } + if (!is->paused && + (!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) && + (!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) { + if (loop != 1 && (!loop || --loop)) { + stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); + } else if (autoexit) { + ret = AVERROR_EOF; + goto fail; + } + } + ret = av_read_frame(ic, pkt); + if (ret < 0) { + if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !is->eof) { + if (is->video_stream >= 0) + packet_queue_put_nullpacket(&is->videoq, is->video_stream); + if (is->audio_stream >= 0) + packet_queue_put_nullpacket(&is->audioq, is->audio_stream); + if (is->subtitle_stream >= 0) + packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream); + is->eof = 1; + } + if (ic->pb && ic->pb->error) + break; + SDL_LockMutex(wait_mutex); + SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); + SDL_UnlockMutex(wait_mutex); + continue; + } else { + is->eof = 0; + } + /* check if packet is in play range specified by user, then queue, otherwise discard */ + stream_start_time = ic->streams[pkt->stream_index]->start_time; + pkt_ts = pkt->pts == AV_NOPTS_VALUE ? pkt->dts : pkt->pts; + pkt_in_play_range = duration == AV_NOPTS_VALUE || + (pkt_ts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) * + av_q2d(ic->streams[pkt->stream_index]->time_base) - + (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000 + <= ((double)duration / 1000000); + if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { + packet_queue_put(&is->audioq, pkt); + } else if (pkt->stream_index == is->video_stream && pkt_in_play_range + && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) { + packet_queue_put(&is->videoq, pkt); + } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { + packet_queue_put(&is->subtitleq, pkt); + } else { + av_free_packet(pkt); + } + } + + ret = 0; + fail: + if (ic && !is->ic) + avformat_close_input(&ic); + + if (ret != 0) { + SDL_Event event; + + event.type = FF_QUIT_EVENT; + event.user.data1 = is; + SDL_PushEvent(&event); + } + SDL_DestroyMutex(wait_mutex); + return 0; +} + +static VideoState *stream_open(const char *filename, AVInputFormat *iformat) +{ + VideoState *is; + + is = av_mallocz(sizeof(VideoState)); + if (!is) + return NULL; + is->filename = av_strdup(filename); + if (!is->filename) + goto fail; + is->iformat = iformat; + is->ytop = 0; + is->xleft = 0; + + /* start video display */ + if (frame_queue_init(&is->pictq, &is->videoq, VIDEO_PICTURE_QUEUE_SIZE, 1) < 0) + goto fail; + if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0) + goto fail; + if (frame_queue_init(&is->sampq, &is->audioq, SAMPLE_QUEUE_SIZE, 1) < 0) + goto fail; + + if (packet_queue_init(&is->videoq) < 0 || + packet_queue_init(&is->audioq) < 0 || + packet_queue_init(&is->subtitleq) < 0) + goto fail; + + if (!(is->continue_read_thread = SDL_CreateCond())) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError()); + goto fail; + } + + init_clock(&is->vidclk, &is->videoq.serial); + init_clock(&is->audclk, &is->audioq.serial); + init_clock(&is->extclk, &is->extclk.serial); + is->audio_clock_serial = -1; + is->audio_volume = SDL_MIX_MAXVOLUME; + is->muted = 0; + is->av_sync_type = av_sync_type; + is->read_tid = SDL_CreateThread(read_thread, is); + if (!is->read_tid) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateThread(): %s\n", SDL_GetError()); +fail: + stream_close(is); + return NULL; + } + return is; +} + +static void stream_cycle_channel(VideoState *is, int codec_type) +{ + AVFormatContext *ic = is->ic; + int start_index, stream_index; + int old_index; + AVStream *st; + AVProgram *p = NULL; + int nb_streams = is->ic->nb_streams; + + if (codec_type == AVMEDIA_TYPE_VIDEO) { + start_index = is->last_video_stream; + old_index = is->video_stream; + } else if (codec_type == AVMEDIA_TYPE_AUDIO) { + start_index = is->last_audio_stream; + old_index = is->audio_stream; + } else { + start_index = is->last_subtitle_stream; + old_index = is->subtitle_stream; + } + stream_index = start_index; + + if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) { + p = av_find_program_from_stream(ic, NULL, is->video_stream); + if (p) { + nb_streams = p->nb_stream_indexes; + for (start_index = 0; start_index < nb_streams; start_index++) + if (p->stream_index[start_index] == stream_index) + break; + if (start_index == nb_streams) + start_index = -1; + stream_index = start_index; + } + } + + for (;;) { + if (++stream_index >= nb_streams) + { + if (codec_type == AVMEDIA_TYPE_SUBTITLE) + { + stream_index = -1; + is->last_subtitle_stream = -1; + goto the_end; + } + if (start_index == -1) + return; + stream_index = 0; + } + if (stream_index == start_index) + return; + st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index]; + if (st->codec->codec_type == codec_type) { + /* check that parameters are OK */ + switch (codec_type) { + case AVMEDIA_TYPE_AUDIO: + if (st->codec->sample_rate != 0 && + st->codec->channels != 0) + goto the_end; + break; + case AVMEDIA_TYPE_VIDEO: + case AVMEDIA_TYPE_SUBTITLE: + goto the_end; + default: + break; + } + } + } + the_end: + if (p && stream_index != -1) + stream_index = p->stream_index[stream_index]; + av_log(NULL, AV_LOG_INFO, "Switch %s stream from #%d to #%d\n", + av_get_media_type_string(codec_type), + old_index, + stream_index); + + stream_component_close(is, old_index); + stream_component_open(is, stream_index); +} + + +static void toggle_full_screen(VideoState *is) +{ +#if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14) + /* OS X needs to reallocate the SDL overlays */ + int i; + for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) + is->pictq.queue[i].reallocate = 1; +#endif + is_full_screen = !is_full_screen; + video_open(is, 1, NULL); +} + +static void toggle_audio_display(VideoState *is) +{ + int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); + int next = is->show_mode; + do { + next = (next + 1) % SHOW_MODE_NB; + } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st)); + if (is->show_mode != next) { + fill_rectangle(screen, + is->xleft, is->ytop, is->width, is->height, + bgcolor, 1); + is->force_refresh = 1; + is->show_mode = next; + } +} + +static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) { + double remaining_time = 0.0; + SDL_PumpEvents(); + while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) { + if (!cursor_hidden && av_gettime_relative() - cursor_last_shown > CURSOR_HIDE_DELAY) { + SDL_ShowCursor(0); + cursor_hidden = 1; + } + if (remaining_time > 0.0) + av_usleep((int64_t)(remaining_time * 1000000.0)); + remaining_time = REFRESH_RATE; + if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh)) + video_refresh(is, &remaining_time); + SDL_PumpEvents(); + } +} + +static void seek_chapter(VideoState *is, int incr) +{ + int64_t pos = get_master_clock(is) * AV_TIME_BASE; + int i; + + if (!is->ic->nb_chapters) + return; + + /* find the current chapter */ + for (i = 0; i < is->ic->nb_chapters; i++) { + AVChapter *ch = is->ic->chapters[i]; + if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) { + i--; + break; + } + } + + i += incr; + i = FFMAX(i, 0); + if (i >= is->ic->nb_chapters) + return; + + av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i); + stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base, + AV_TIME_BASE_Q), 0, 0); +} + +/* handle an event sent by the GUI */ +static void event_loop(VideoState *cur_stream) +{ + SDL_Event event; + double incr, pos, frac; + + for (;;) { + double x; + refresh_loop_wait_event(cur_stream, &event); + switch (event.type) { + case SDL_KEYDOWN: + if (exit_on_keydown) { + do_exit(cur_stream); + break; + } + switch (event.key.keysym.sym) { + case SDLK_ESCAPE: + case SDLK_q: + do_exit(cur_stream); + break; + case SDLK_f: + toggle_full_screen(cur_stream); + cur_stream->force_refresh = 1; + break; + case SDLK_p: + case SDLK_SPACE: + toggle_pause(cur_stream); + break; + case SDLK_m: + toggle_mute(cur_stream); + break; + case SDLK_KP_MULTIPLY: + case SDLK_0: + update_volume(cur_stream, 1, SDL_VOLUME_STEP); + break; + case SDLK_KP_DIVIDE: + case SDLK_9: + update_volume(cur_stream, -1, SDL_VOLUME_STEP); + break; + case SDLK_s: // S: Step to next frame + step_to_next_frame(cur_stream); + break; + case SDLK_a: + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); + break; + case SDLK_v: + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); + break; + case SDLK_c: + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); + break; + case SDLK_t: + stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); + break; + case SDLK_w: +#if CONFIG_AVFILTER + if (cur_stream->show_mode == SHOW_MODE_VIDEO && cur_stream->vfilter_idx < nb_vfilters - 1) { + if (++cur_stream->vfilter_idx >= nb_vfilters) + cur_stream->vfilter_idx = 0; + } else { + cur_stream->vfilter_idx = 0; + toggle_audio_display(cur_stream); + } +#else + toggle_audio_display(cur_stream); +#endif + break; + case SDLK_PAGEUP: + if (cur_stream->ic->nb_chapters <= 1) { + incr = 600.0; + goto do_seek; + } + seek_chapter(cur_stream, 1); + break; + case SDLK_PAGEDOWN: + if (cur_stream->ic->nb_chapters <= 1) { + incr = -600.0; + goto do_seek; + } + seek_chapter(cur_stream, -1); + break; + case SDLK_LEFT: + incr = -10.0; + goto do_seek; + case SDLK_RIGHT: + incr = 10.0; + goto do_seek; + case SDLK_UP: + incr = 60.0; + goto do_seek; + case SDLK_DOWN: + incr = -60.0; + do_seek: + if (seek_by_bytes) { + pos = -1; + if (pos < 0 && cur_stream->video_stream >= 0) + pos = frame_queue_last_pos(&cur_stream->pictq); + if (pos < 0 && cur_stream->audio_stream >= 0) + pos = frame_queue_last_pos(&cur_stream->sampq); + if (pos < 0) + pos = avio_tell(cur_stream->ic->pb); + if (cur_stream->ic->bit_rate) + incr *= cur_stream->ic->bit_rate / 8.0; + else + incr *= 180000.0; + pos += incr; + stream_seek(cur_stream, pos, incr, 1); + } else { + pos = get_master_clock(cur_stream); + if (isnan(pos)) + pos = (double)cur_stream->seek_pos / AV_TIME_BASE; + pos += incr; + if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE) + pos = cur_stream->ic->start_time / (double)AV_TIME_BASE; + stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); + } + break; + default: + break; + } + break; + case SDL_VIDEOEXPOSE: + cur_stream->force_refresh = 1; + break; + case SDL_MOUSEBUTTONDOWN: + if (exit_on_mousedown) { + do_exit(cur_stream); + break; + } + case SDL_MOUSEMOTION: + if (cursor_hidden) { + SDL_ShowCursor(1); + cursor_hidden = 0; + } + cursor_last_shown = av_gettime_relative(); + if (event.type == SDL_MOUSEBUTTONDOWN) { + x = event.button.x; + } else { + if (event.motion.state != SDL_PRESSED) + break; + x = event.motion.x; + } + if (seek_by_bytes || cur_stream->ic->duration <= 0) { + uint64_t size = avio_size(cur_stream->ic->pb); + stream_seek(cur_stream, size*x/cur_stream->width, 0, 1); + } else { + int64_t ts; + int ns, hh, mm, ss; + int tns, thh, tmm, tss; + tns = cur_stream->ic->duration / 1000000LL; + thh = tns / 3600; + tmm = (tns % 3600) / 60; + tss = (tns % 60); + frac = x / cur_stream->width; + ns = frac * tns; + hh = ns / 3600; + mm = (ns % 3600) / 60; + ss = (ns % 60); + av_log(NULL, AV_LOG_INFO, + "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, + hh, mm, ss, thh, tmm, tss); + ts = frac * cur_stream->ic->duration; + if (cur_stream->ic->start_time != AV_NOPTS_VALUE) + ts += cur_stream->ic->start_time; + stream_seek(cur_stream, ts, 0, 0); + } + break; + case SDL_VIDEORESIZE: + screen = SDL_SetVideoMode(FFMIN(16383, event.resize.w), event.resize.h, 0, + SDL_HWSURFACE|(is_full_screen?SDL_FULLSCREEN:SDL_RESIZABLE)|SDL_ASYNCBLIT|SDL_HWACCEL); + if (!screen) { + av_log(NULL, AV_LOG_FATAL, "Failed to set video mode\n"); + do_exit(cur_stream); + } + screen_width = cur_stream->width = screen->w; + screen_height = cur_stream->height = screen->h; + cur_stream->force_refresh = 1; + break; + case SDL_QUIT: + case FF_QUIT_EVENT: + do_exit(cur_stream); + break; + case FF_ALLOC_EVENT: + alloc_picture(event.user.data1); + break; + default: + break; + } + } +} + +static int opt_frame_size(void *optctx, const char *opt, const char *arg) +{ + av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n"); + return opt_default(NULL, "video_size", arg); +} + +static int opt_width(void *optctx, const char *opt, const char *arg) +{ + screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); + return 0; +} + +static int opt_height(void *optctx, const char *opt, const char *arg) +{ + screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); + return 0; +} + +static int opt_format(void *optctx, const char *opt, const char *arg) +{ + file_iformat = av_find_input_format(arg); + if (!file_iformat) { + av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg); + return AVERROR(EINVAL); + } + return 0; +} + +static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg) +{ + av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n"); + return opt_default(NULL, "pixel_format", arg); +} + +static int opt_sync(void *optctx, const char *opt, const char *arg) +{ + if (!strcmp(arg, "audio")) + av_sync_type = AV_SYNC_AUDIO_MASTER; + else if (!strcmp(arg, "video")) + av_sync_type = AV_SYNC_VIDEO_MASTER; + else if (!strcmp(arg, "ext")) + av_sync_type = AV_SYNC_EXTERNAL_CLOCK; + else { + av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg); + exit(1); + } + return 0; +} + +static int opt_seek(void *optctx, const char *opt, const char *arg) +{ + start_time = parse_time_or_die(opt, arg, 1); + return 0; +} + +static int opt_duration(void *optctx, const char *opt, const char *arg) +{ + duration = parse_time_or_die(opt, arg, 1); + return 0; +} + +static int opt_show_mode(void *optctx, const char *opt, const char *arg) +{ + show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO : + !strcmp(arg, "waves") ? SHOW_MODE_WAVES : + !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT : + parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1); + return 0; +} + +static void opt_input_file(void *optctx, const char *filename) +{ + if (input_filename) { + av_log(NULL, AV_LOG_FATAL, + "Argument '%s' provided as input filename, but '%s' was already specified.\n", + filename, input_filename); + exit(1); + } + if (!strcmp(filename, "-")) + filename = "pipe:"; + input_filename = filename; +} + +static int opt_codec(void *optctx, const char *opt, const char *arg) +{ + const char *spec = strchr(opt, ':'); + if (!spec) { + av_log(NULL, AV_LOG_ERROR, + "No media specifier was specified in '%s' in option '%s'\n", + arg, opt); + return AVERROR(EINVAL); + } + spec++; + switch (spec[0]) { + case 'a' : audio_codec_name = arg; break; + case 's' : subtitle_codec_name = arg; break; + case 'v' : video_codec_name = arg; break; + default: + av_log(NULL, AV_LOG_ERROR, + "Invalid media specifier '%s' in option '%s'\n", spec, opt); + return AVERROR(EINVAL); + } + return 0; +} + +static int dummy; + +static const OptionDef options[] = { +#include "cmdutils_common_opts.h" + { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" }, + { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" }, + { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" }, + { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" }, + { "an", OPT_BOOL, { &audio_disable }, "disable audio" }, + { "vn", OPT_BOOL, { &video_disable }, "disable video" }, + { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" }, + { "ast", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_specifier" }, + { "vst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_specifier" }, + { "sst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_specifier" }, + { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" }, + { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" }, + { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" }, + { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" }, + { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" }, + { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" }, + { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" }, + { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" }, + { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" }, + { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""}, + { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" }, + { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" }, + { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" }, + { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" }, + { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" }, + { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" }, + { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" }, + { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" }, + { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" }, +#if CONFIG_AVFILTER + { "vf", OPT_EXPERT | HAS_ARG, { .func_arg = opt_add_vfilter }, "set video filters", "filter_graph" }, + { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" }, +#endif + { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" }, + { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" }, + { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" }, + { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"}, + { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" }, + { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" }, + { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" }, + { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" }, + { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" }, + { NULL, }, +}; + +static void show_usage(void) +{ + av_log(NULL, AV_LOG_INFO, "Simple media player\n"); + av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name); + av_log(NULL, AV_LOG_INFO, "\n"); +} + +void show_help_default(const char *opt, const char *arg) +{ + av_log_set_callback(log_callback_help); + show_usage(); + show_help_options(options, "Main options:", 0, OPT_EXPERT, 0); + show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0); + printf("\n"); + show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM); + show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); +#if !CONFIG_AVFILTER + show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM); +#else + show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM); +#endif + printf("\nWhile playing:\n" + "q, ESC quit\n" + "f toggle full screen\n" + "p, SPC pause\n" + "m toggle mute\n" + "9, 0 decrease and increase volume respectively\n" + "/, * decrease and increase volume respectively\n" + "a cycle audio channel in the current program\n" + "v cycle video channel\n" + "t cycle subtitle channel in the current program\n" + "c cycle program\n" + "w cycle video filters or show modes\n" + "s activate frame-step mode\n" + "left/right seek backward/forward 10 seconds\n" + "down/up seek backward/forward 1 minute\n" + "page down/page up seek backward/forward 10 minutes\n" + "mouse click seek to percentage in file corresponding to fraction of width\n" + ); +} + +static int lockmgr(void **mtx, enum AVLockOp op) +{ + switch(op) { + case AV_LOCK_CREATE: + *mtx = SDL_CreateMutex(); + if(!*mtx) { + av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); + return 1; + } + return 0; + case AV_LOCK_OBTAIN: + return !!SDL_LockMutex(*mtx); + case AV_LOCK_RELEASE: + return !!SDL_UnlockMutex(*mtx); + case AV_LOCK_DESTROY: + SDL_DestroyMutex(*mtx); + return 0; + } + return 1; +} + +/* Called from the main */ +int main(int argc, char **argv) +{ + int flags; + VideoState *is; + char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy"; + + av_log_set_flags(AV_LOG_SKIP_REPEATED); + parse_loglevel(argc, argv, options); + + /* register all codecs, demux and protocols */ +#if CONFIG_AVDEVICE + avdevice_register_all(); +#endif +#if CONFIG_AVFILTER + avfilter_register_all(); +#endif + av_register_all(); + avformat_network_init(); + + init_opts(); + + signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ + signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ + + show_banner(argc, argv, options); + + parse_options(NULL, argc, argv, options, opt_input_file); + + if (!input_filename) { + show_usage(); + av_log(NULL, AV_LOG_FATAL, "An input file must be specified\n"); + av_log(NULL, AV_LOG_FATAL, + "Use -h to get full help or, even better, run 'man %s'\n", program_name); + exit(1); + } + + if (display_disable) { + video_disable = 1; + } + flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; + if (audio_disable) + flags &= ~SDL_INIT_AUDIO; + if (display_disable) + SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */ +#if !defined(_WIN32) && !defined(__APPLE__) + flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */ +#endif + if (SDL_Init (flags)) { + av_log(NULL, AV_LOG_FATAL, "Could not initialize SDL - %s\n", SDL_GetError()); + av_log(NULL, AV_LOG_FATAL, "(Did you set the DISPLAY variable?)\n"); + exit(1); + } + + if (!display_disable) { + const SDL_VideoInfo *vi = SDL_GetVideoInfo(); + fs_screen_width = vi->current_w; + fs_screen_height = vi->current_h; + } + + SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE); + SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); + SDL_EventState(SDL_USEREVENT, SDL_IGNORE); + + SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL); + + if (av_lockmgr_register(lockmgr)) { + av_log(NULL, AV_LOG_FATAL, "Could not initialize lock manager!\n"); + do_exit(NULL); + } + + av_init_packet(&flush_pkt); + flush_pkt.data = (uint8_t *)&flush_pkt; + + is = stream_open(input_filename, file_iformat); + if (!is) { + av_log(NULL, AV_LOG_FATAL, "Failed to initialize VideoState!\n"); + do_exit(NULL); + } + + event_loop(is); + + /* never returns */ + + return 0; +} |