diff options
Diffstat (limited to 'libavcodec/rawdec.c')
-rw-r--r-- | libavcodec/rawdec.c | 67 |
1 files changed, 53 insertions, 14 deletions
diff --git a/libavcodec/rawdec.c b/libavcodec/rawdec.c index bb93129027..68b461d2f1 100644 --- a/libavcodec/rawdec.c +++ b/libavcodec/rawdec.c @@ -2,20 +2,20 @@ * Raw Video Decoder * Copyright (c) 2001 Fabrice Bellard * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -29,23 +29,34 @@ #include "raw.h" #include "libavutil/intreadwrite.h" #include "libavutil/imgutils.h" +#include "libavutil/opt.h" typedef struct RawVideoContext { + AVClass *av_class; uint32_t palette[AVPALETTE_COUNT]; unsigned char * buffer; /* block of memory for holding one frame */ int length; /* number of bytes in buffer */ int flip; AVFrame pic; ///< AVCodecContext.coded_frame + int tff; } RawVideoContext; +static const AVOption options[]={ +{"top", "top field first", offsetof(RawVideoContext, tff), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 1, AV_OPT_FLAG_DECODING_PARAM|AV_OPT_FLAG_VIDEO_PARAM}, +{NULL} +}; +static const AVClass class = { "rawdec", NULL, options, LIBAVUTIL_VERSION_INT }; + static const PixelFormatTag pix_fmt_bps_avi[] = { + { PIX_FMT_MONOWHITE, 1 }, + { PIX_FMT_PAL8, 2 }, { PIX_FMT_PAL8, 4 }, { PIX_FMT_PAL8, 8 }, { PIX_FMT_RGB444, 12 }, { PIX_FMT_RGB555, 15 }, { PIX_FMT_RGB555, 16 }, { PIX_FMT_BGR24, 24 }, - { PIX_FMT_RGB32, 32 }, + { PIX_FMT_BGRA, 32 }, { PIX_FMT_NONE, 0 }, }; @@ -63,7 +74,7 @@ static const PixelFormatTag pix_fmt_bps_mov[] = { { PIX_FMT_NONE, 0 }, }; -static enum PixelFormat find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc) +enum PixelFormat ff_find_pix_fmt(const PixelFormatTag *tags, unsigned int fourcc) { while (tags->pix_fmt >= 0) { if (tags->fourcc == fourcc) @@ -78,22 +89,29 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx) RawVideoContext *context = avctx->priv_data; if (avctx->codec_tag == MKTAG('r','a','w',' ')) - avctx->pix_fmt = find_pix_fmt(pix_fmt_bps_mov, avctx->bits_per_coded_sample); + avctx->pix_fmt = ff_find_pix_fmt(pix_fmt_bps_mov, avctx->bits_per_coded_sample); else if (avctx->codec_tag == MKTAG('W','R','A','W')) - avctx->pix_fmt = find_pix_fmt(pix_fmt_bps_avi, avctx->bits_per_coded_sample); + avctx->pix_fmt = ff_find_pix_fmt(pix_fmt_bps_avi, avctx->bits_per_coded_sample); else if (avctx->codec_tag) - avctx->pix_fmt = find_pix_fmt(ff_raw_pix_fmt_tags, avctx->codec_tag); + avctx->pix_fmt = ff_find_pix_fmt(ff_raw_pix_fmt_tags, avctx->codec_tag); else if (avctx->pix_fmt == PIX_FMT_NONE && avctx->bits_per_coded_sample) - avctx->pix_fmt = find_pix_fmt(pix_fmt_bps_avi, avctx->bits_per_coded_sample); + avctx->pix_fmt = ff_find_pix_fmt(pix_fmt_bps_avi, avctx->bits_per_coded_sample); + + if (avctx->pix_fmt == PIX_FMT_NONE) { + av_log(avctx, AV_LOG_ERROR, "Pixel format was not specified and cannot be detected\n"); + return AVERROR(EINVAL); + } ff_set_systematic_pal2(context->palette, avctx->pix_fmt); - context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height); if((avctx->bits_per_coded_sample == 4 || avctx->bits_per_coded_sample == 2) && avctx->pix_fmt==PIX_FMT_PAL8 && (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' '))){ + context->length = avpicture_get_size(avctx->pix_fmt, FFALIGN(avctx->width, 16), avctx->height); context->buffer = av_malloc(context->length); if (!context->buffer) return -1; + } else { + context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height); } context->pic.pict_type = AV_PICTURE_TYPE_I; context->pic.key_frame = 1; @@ -101,6 +119,7 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx) avctx->coded_frame= &context->pic; if((avctx->extradata_size >= 9 && !memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) || + avctx->codec_tag == MKTAG('c','y','u','v') || avctx->codec_tag == MKTAG(3, 0, 0, 0) || avctx->codec_tag == MKTAG('W','R','A','W')) context->flip=1; @@ -118,6 +137,7 @@ static int raw_decode(AVCodecContext *avctx, { const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; + int linesize_align = 4; RawVideoContext *context = avctx->priv_data; AVFrame * frame = (AVFrame *) data; @@ -128,6 +148,12 @@ static int raw_decode(AVCodecContext *avctx, frame->top_field_first = avctx->coded_frame->top_field_first; frame->reordered_opaque = avctx->reordered_opaque; frame->pkt_pts = avctx->pkt->pts; + frame->pkt_pos = avctx->pkt->pos; + + if(context->tff>=0){ + frame->interlaced_frame = 1; + frame->top_field_first = context->tff; + } //2bpp and 4bpp raw in avi and mov (yes this is ugly ...) if (context->buffer) { @@ -139,13 +165,16 @@ static int raw_decode(AVCodecContext *avctx, dst[2*i+0]= buf[i]>>4; dst[2*i+1]= buf[i]&15; } - } else + linesize_align = 8; + } else { for(i=0; 4*i+3 < buf_size; i++){ dst[4*i+0]= buf[i]>>6; dst[4*i+1]= buf[i]>>4&3; dst[4*i+2]= buf[i]>>2&3; dst[4*i+3]= buf[i] &3; } + linesize_align = 16; + } buf= dst; } @@ -169,13 +198,22 @@ static int raw_decode(AVCodecContext *avctx, frame->palette_has_changed = 1; } } - if(avctx->pix_fmt==PIX_FMT_BGR24 && ((frame->linesize[0]+3)&~3)*avctx->height <= buf_size) - frame->linesize[0] = (frame->linesize[0]+3)&~3; + if((avctx->pix_fmt==PIX_FMT_BGR24 || + avctx->pix_fmt==PIX_FMT_GRAY8 || + avctx->pix_fmt==PIX_FMT_RGB555LE || + avctx->pix_fmt==PIX_FMT_RGB555BE || + avctx->pix_fmt==PIX_FMT_RGB565LE || + avctx->pix_fmt==PIX_FMT_MONOWHITE || + avctx->pix_fmt==PIX_FMT_PAL8) && + FFALIGN(frame->linesize[0], linesize_align)*avctx->height <= buf_size) + frame->linesize[0] = FFALIGN(frame->linesize[0], linesize_align); if(context->flip) flip(avctx, picture); if ( avctx->codec_tag == MKTAG('Y', 'V', '1', '2') + || avctx->codec_tag == MKTAG('Y', 'V', '1', '6') + || avctx->codec_tag == MKTAG('Y', 'V', '2', '4') || avctx->codec_tag == MKTAG('Y', 'V', 'U', '9')) FFSWAP(uint8_t *, picture->data[1], picture->data[2]); @@ -211,4 +249,5 @@ AVCodec ff_rawvideo_decoder = { .close = raw_close_decoder, .decode = raw_decode, .long_name = NULL_IF_CONFIG_SMALL("raw video"), + .priv_class= &class, }; |