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authorMichael Niedermayer <michaelni@gmx.at>2012-01-13 05:56:59 +0100
committerMichael Niedermayer <michaelni@gmx.at>2012-01-14 19:25:15 +0100
commit52889b543dddf7e7b9a34cdfebfbccbccaf73160 (patch)
treed6e16988c56ca99b4929714178666f55bacd5d1e /libavcodec
parent0d5c810bd59abed01f8e70ee956897599eaaea25 (diff)
downloadffmpeg-52889b543dddf7e7b9a34cdfebfbccbccaf73160.tar.gz
mpeg12dec: BW10 support
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/mpeg12.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index 831ea92bb5..c4c611b8ac 100644
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -2075,8 +2075,6 @@ static int vcr2_init_sequence(AVCodecContext *avctx)
if (MPV_common_init(s) < 0)
return -1;
- exchange_uv(s); // common init reset pblocks, so we swap them here
- s->swap_uv = 1; // in case of xvmc we need to swap uv for each MB
s1->mpeg_enc_ctx_allocated = 1;
for (i = 0; i < 64; i++) {
@@ -2096,8 +2094,15 @@ static int vcr2_init_sequence(AVCodecContext *avctx)
s->first_field = 0;
s->frame_pred_frame_dct = 1;
s->chroma_format = 1;
- s->codec_id = s->avctx->codec_id = CODEC_ID_MPEG2VIDEO;
- avctx->sub_id = 2; /* indicates MPEG-2 */
+ if (s->codec_tag == AV_RL32("BW10")) {
+ s->codec_id = s->avctx->codec_id = CODEC_ID_MPEG1VIDEO;
+ avctx->sub_id = 1; /* indicates MPEG-1 */
+ } else {
+ exchange_uv(s); // common init reset pblocks, so we swap them here
+ s->swap_uv = 1; // in case of xvmc we need to swap uv for each MB
+ s->codec_id = s->avctx->codec_id = CODEC_ID_MPEG2VIDEO;
+ avctx->sub_id = 2; /* indicates MPEG-2 */
+ }
s1->save_width = s->width;
s1->save_height = s->height;
s1->save_progressive_seq = s->progressive_sequence;
@@ -2269,7 +2274,9 @@ static int mpeg_decode_frame(AVCodecContext *avctx,
}
s2->codec_tag = avpriv_toupper4(avctx->codec_tag);
- if (s->mpeg_enc_ctx_allocated == 0 && s2->codec_tag == AV_RL32("VCR2"))
+ if (s->mpeg_enc_ctx_allocated == 0 && ( s2->codec_tag == AV_RL32("VCR2")
+ || s2->codec_tag == AV_RL32("BW10")
+ ))
vcr2_init_sequence(avctx);
s->slice_count = 0;