diff options
author | Anton Khirnov <anton@khirnov.net> | 2012-02-23 00:19:35 +0400 |
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committer | Anton Khirnov <anton@khirnov.net> | 2012-02-23 22:50:46 +0400 |
commit | 2257f66ec5b4628ca24410b4cebe0e0842a4298d (patch) | |
tree | bd19c9b9f3f6a4061297a83a3544a6a10a6aa790 /libavcodec/libdiracenc.c | |
parent | 577fed3b7cef50d9d0f2e8a4b2f215129da49b4e (diff) |
lavc: drop libdirac encoder.
Libschroedinger is the preferred way to encode dirac video now, it
produces better output and has a nicer API.
Diffstat (limited to 'libavcodec/libdiracenc.c')
-rw-r--r-- | libavcodec/libdiracenc.c | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/libavcodec/libdiracenc.c b/libavcodec/libdiracenc.c deleted file mode 100644 index 156ba57718..0000000000 --- a/libavcodec/libdiracenc.c +++ /dev/null @@ -1,405 +0,0 @@ -/* - * Dirac encoding support via libdirac library - * Copyright (c) 2005 BBC, Andrew Kennedy <dirac at rd dot bbc dot co dot uk> - * Copyright (c) 2006-2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com > - * - * This file is part of Libav. - * - * Libav 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. - * - * Libav 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 Libav; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** -* @file -* Dirac encoding support via libdirac library; more details about the -* Dirac project can be found at http://dirac.sourceforge.net/. -* The libdirac_encoder library implements Dirac specification version 2.2 -* (http://dirac.sourceforge.net/specification.html). -*/ - -#include "libdirac_libschro.h" -#include "libdirac.h" - -#undef NDEBUG -#include <assert.h> - - -#include <libdirac_encoder/dirac_encoder.h> - -/** Dirac encoder private data */ -typedef struct DiracEncoderParams { - /** Dirac encoder context */ - dirac_encoder_context_t enc_ctx; - - /** frame being encoded */ - AVFrame picture; - - /** frame size */ - int frame_size; - - /** Dirac encoder handle */ - dirac_encoder_t* p_encoder; - - /** input frame buffer */ - unsigned char *p_in_frame_buf; - - /** buffer to store encoder output before writing it to the frame queue */ - unsigned char *enc_buf; - - /** size of encoder buffer */ - int enc_buf_size; - - /** queue storing encoded frames */ - DiracSchroQueue enc_frame_queue; - - /** end of sequence signalled by user, 0 - false, 1 - true */ - int eos_signalled; - - /** end of sequence returned by encoder, 0 - false, 1 - true */ - int eos_pulled; -} DiracEncoderParams; - -/** -* Works out Dirac-compatible chroma format. -*/ -static dirac_chroma_t GetDiracChromaFormat(enum PixelFormat ff_pix_fmt) -{ - int num_formats = sizeof(dirac_pixel_format_map) / - sizeof(dirac_pixel_format_map[0]); - int idx; - - for (idx = 0; idx < num_formats; ++idx) - if (dirac_pixel_format_map[idx].ff_pix_fmt == ff_pix_fmt) - return dirac_pixel_format_map[idx].dirac_pix_fmt; - return formatNK; -} - -/** -* Dirac video preset table. Ensure that this tables matches up correctly -* with the ff_dirac_schro_video_format_info table in libdirac_libschro.c. -*/ -static const VideoFormat ff_dirac_video_formats[]={ - VIDEO_FORMAT_CUSTOM , - VIDEO_FORMAT_QSIF525 , - VIDEO_FORMAT_QCIF , - VIDEO_FORMAT_SIF525 , - VIDEO_FORMAT_CIF , - VIDEO_FORMAT_4SIF525 , - VIDEO_FORMAT_4CIF , - VIDEO_FORMAT_SD_480I60 , - VIDEO_FORMAT_SD_576I50 , - VIDEO_FORMAT_HD_720P60 , - VIDEO_FORMAT_HD_720P50 , - VIDEO_FORMAT_HD_1080I60 , - VIDEO_FORMAT_HD_1080I50 , - VIDEO_FORMAT_HD_1080P60 , - VIDEO_FORMAT_HD_1080P50 , - VIDEO_FORMAT_DIGI_CINEMA_2K24 , - VIDEO_FORMAT_DIGI_CINEMA_4K24 , -}; - -/** -* Returns the video format preset matching the input video dimensions and -* time base. -*/ -static VideoFormat GetDiracVideoFormatPreset(AVCodecContext *avccontext) -{ - unsigned int num_formats = sizeof(ff_dirac_video_formats) / - sizeof(ff_dirac_video_formats[0]); - - unsigned int idx = ff_dirac_schro_get_video_format_idx(avccontext); - - return (idx < num_formats) ? - ff_dirac_video_formats[idx] : VIDEO_FORMAT_CUSTOM; -} - -static av_cold int libdirac_encode_init(AVCodecContext *avccontext) -{ - - DiracEncoderParams* p_dirac_params = avccontext->priv_data; - int no_local = 1; - int verbose = avccontext->debug; - VideoFormat preset; - - /* get Dirac preset */ - preset = GetDiracVideoFormatPreset(avccontext); - - /* initialize the encoder context */ - dirac_encoder_context_init(&p_dirac_params->enc_ctx, preset); - - p_dirac_params->enc_ctx.src_params.chroma = GetDiracChromaFormat(avccontext->pix_fmt); - - if (p_dirac_params->enc_ctx.src_params.chroma == formatNK) { - av_log(avccontext, AV_LOG_ERROR, - "Unsupported pixel format %d. This codec supports only " - "Planar YUV formats (yuv420p, yuv422p, yuv444p\n", - avccontext->pix_fmt); - return -1; - } - - p_dirac_params->enc_ctx.src_params.frame_rate.numerator = avccontext->time_base.den; - p_dirac_params->enc_ctx.src_params.frame_rate.denominator = avccontext->time_base.num; - - p_dirac_params->enc_ctx.src_params.width = avccontext->width; - p_dirac_params->enc_ctx.src_params.height = avccontext->height; - - p_dirac_params->frame_size = avpicture_get_size(avccontext->pix_fmt, - avccontext->width, - avccontext->height); - - avccontext->coded_frame = &p_dirac_params->picture; - - if (no_local) { - p_dirac_params->enc_ctx.decode_flag = 0; - p_dirac_params->enc_ctx.instr_flag = 0; - } else { - p_dirac_params->enc_ctx.decode_flag = 1; - p_dirac_params->enc_ctx.instr_flag = 1; - } - - /* Intra-only sequence */ - if (!avccontext->gop_size) { - p_dirac_params->enc_ctx.enc_params.num_L1 = 0; - if (avccontext->coder_type == FF_CODER_TYPE_VLC) - p_dirac_params->enc_ctx.enc_params.using_ac = 0; - } else - avccontext->has_b_frames = 1; - - if (avccontext->flags & CODEC_FLAG_QSCALE) { - if (avccontext->global_quality) { - p_dirac_params->enc_ctx.enc_params.qf = avccontext->global_quality - / (FF_QP2LAMBDA * 10.0); - /* if it is not default bitrate then send target rate. */ - if (avccontext->bit_rate >= 1000 && - avccontext->bit_rate != 200000) - p_dirac_params->enc_ctx.enc_params.trate = avccontext->bit_rate - / 1000; - } else - p_dirac_params->enc_ctx.enc_params.lossless = 1; - } else if (avccontext->bit_rate >= 1000) - p_dirac_params->enc_ctx.enc_params.trate = avccontext->bit_rate / 1000; - - if ((preset > VIDEO_FORMAT_QCIF || preset < VIDEO_FORMAT_QSIF525) && - avccontext->bit_rate == 200000) - p_dirac_params->enc_ctx.enc_params.trate = 0; - - if (avccontext->flags & CODEC_FLAG_INTERLACED_ME) - /* all material can be coded as interlaced or progressive - * irrespective of the type of source material */ - p_dirac_params->enc_ctx.enc_params.picture_coding_mode = 1; - - p_dirac_params->p_encoder = dirac_encoder_init(&p_dirac_params->enc_ctx, - verbose); - - if (!p_dirac_params->p_encoder) { - av_log(avccontext, AV_LOG_ERROR, - "Unrecoverable Error: dirac_encoder_init failed. "); - return EXIT_FAILURE; - } - - /* allocate enough memory for the incoming data */ - p_dirac_params->p_in_frame_buf = av_malloc(p_dirac_params->frame_size); - - /* initialize the encoded frame queue */ - ff_dirac_schro_queue_init(&p_dirac_params->enc_frame_queue); - - return 0; -} - -static void DiracFreeFrame(void *data) -{ - DiracSchroEncodedFrame *enc_frame = data; - - av_freep(&enc_frame->p_encbuf); - av_free(enc_frame); -} - -static int libdirac_encode_frame(AVCodecContext *avccontext, - unsigned char *frame, - int buf_size, void *data) -{ - int enc_size = 0; - dirac_encoder_state_t state; - DiracEncoderParams *p_dirac_params = avccontext->priv_data; - DiracSchroEncodedFrame *p_frame_output = NULL; - DiracSchroEncodedFrame *p_next_output_frame = NULL; - int go = 1; - int last_frame_in_sequence = 0; - - if (!data) { - /* push end of sequence if not already signalled */ - if (!p_dirac_params->eos_signalled) { - dirac_encoder_end_sequence(p_dirac_params->p_encoder); - p_dirac_params->eos_signalled = 1; - } - } else { - - /* Allocate frame data to Dirac input buffer. - * Input line size may differ from what the codec supports, - * especially when transcoding from one format to another. - * So use avpicture_layout to copy the frame. */ - avpicture_layout((AVPicture *)data, avccontext->pix_fmt, - avccontext->width, avccontext->height, - p_dirac_params->p_in_frame_buf, - p_dirac_params->frame_size); - - /* load next frame */ - if (dirac_encoder_load(p_dirac_params->p_encoder, - p_dirac_params->p_in_frame_buf, - p_dirac_params->frame_size) < 0) { - av_log(avccontext, AV_LOG_ERROR, "Unrecoverable Encoder Error." - " dirac_encoder_load failed...\n"); - return -1; - } - } - - if (p_dirac_params->eos_pulled) - go = 0; - - while (go) { - p_dirac_params->p_encoder->enc_buf.buffer = frame; - p_dirac_params->p_encoder->enc_buf.size = buf_size; - /* process frame */ - state = dirac_encoder_output(p_dirac_params->p_encoder); - - switch (state) { - case ENC_STATE_AVAIL: - case ENC_STATE_EOS: - assert(p_dirac_params->p_encoder->enc_buf.size > 0); - - /* All non-frame data is prepended to actual frame data to - * be able to set the pts correctly. So we don't write data - * to the frame output queue until we actually have a frame - */ - - p_dirac_params->enc_buf = av_realloc(p_dirac_params->enc_buf, - p_dirac_params->enc_buf_size + - p_dirac_params->p_encoder->enc_buf.size); - memcpy(p_dirac_params->enc_buf + p_dirac_params->enc_buf_size, - p_dirac_params->p_encoder->enc_buf.buffer, - p_dirac_params->p_encoder->enc_buf.size); - - p_dirac_params->enc_buf_size += p_dirac_params->p_encoder->enc_buf.size; - - if (state == ENC_STATE_EOS) { - p_dirac_params->eos_pulled = 1; - go = 0; - } - - /* If non-frame data, don't output it until it we get an - * encoded frame back from the encoder. */ - if (p_dirac_params->p_encoder->enc_pparams.pnum == -1) - break; - - /* create output frame */ - p_frame_output = av_mallocz(sizeof(DiracSchroEncodedFrame)); - /* set output data */ - p_frame_output->size = p_dirac_params->enc_buf_size; - p_frame_output->p_encbuf = p_dirac_params->enc_buf; - p_frame_output->frame_num = p_dirac_params->p_encoder->enc_pparams.pnum; - - if (p_dirac_params->p_encoder->enc_pparams.ptype == INTRA_PICTURE && - p_dirac_params->p_encoder->enc_pparams.rtype == REFERENCE_PICTURE) - p_frame_output->key_frame = 1; - - ff_dirac_schro_queue_push_back(&p_dirac_params->enc_frame_queue, - p_frame_output); - - p_dirac_params->enc_buf_size = 0; - p_dirac_params->enc_buf = NULL; - break; - - case ENC_STATE_BUFFER: - go = 0; - break; - - case ENC_STATE_INVALID: - av_log(avccontext, AV_LOG_ERROR, - "Unrecoverable Dirac Encoder Error. Quitting...\n"); - return -1; - - default: - av_log(avccontext, AV_LOG_ERROR, "Unknown Dirac Encoder state\n"); - return -1; - } - } - - /* copy 'next' frame in queue */ - - if (p_dirac_params->enc_frame_queue.size == 1 && p_dirac_params->eos_pulled) - last_frame_in_sequence = 1; - - p_next_output_frame = ff_dirac_schro_queue_pop(&p_dirac_params->enc_frame_queue); - - if (!p_next_output_frame) - return 0; - - memcpy(frame, p_next_output_frame->p_encbuf, p_next_output_frame->size); - avccontext->coded_frame->key_frame = p_next_output_frame->key_frame; - /* Use the frame number of the encoded frame as the pts. It is OK to do - * so since Dirac is a constant framerate codec. It expects input to be - * of constant framerate. */ - avccontext->coded_frame->pts = p_next_output_frame->frame_num; - enc_size = p_next_output_frame->size; - - /* Append the end of sequence information to the last frame in the - * sequence. */ - if (last_frame_in_sequence && p_dirac_params->enc_buf_size > 0) { - memcpy(frame + enc_size, p_dirac_params->enc_buf, - p_dirac_params->enc_buf_size); - enc_size += p_dirac_params->enc_buf_size; - av_freep(&p_dirac_params->enc_buf); - p_dirac_params->enc_buf_size = 0; - } - - /* free frame */ - DiracFreeFrame(p_next_output_frame); - - return enc_size; -} - -static av_cold int libdirac_encode_close(AVCodecContext *avccontext) -{ - DiracEncoderParams *p_dirac_params = avccontext->priv_data; - - /* close the encoder */ - dirac_encoder_close(p_dirac_params->p_encoder); - - /* free data in the output frame queue */ - ff_dirac_schro_queue_free(&p_dirac_params->enc_frame_queue, - DiracFreeFrame); - - /* free the encoder buffer */ - if (p_dirac_params->enc_buf_size) - av_freep(&p_dirac_params->enc_buf); - - /* free the input frame buffer */ - av_freep(&p_dirac_params->p_in_frame_buf); - - return 0; -} - - -AVCodec ff_libdirac_encoder = { - .name = "libdirac", - .type = AVMEDIA_TYPE_VIDEO, - .id = CODEC_ID_DIRAC, - .priv_data_size = sizeof(DiracEncoderParams), - .init = libdirac_encode_init, - .encode = libdirac_encode_frame, - .close = libdirac_encode_close, - .capabilities = CODEC_CAP_DELAY, - .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_NONE}, - .long_name = NULL_IF_CONFIG_SMALL("libdirac Dirac 2.2"), -}; |