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| author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2012-06-06 20:13:07 +0200 |
|---|---|---|
| committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2012-06-09 08:38:31 +0200 |
| commit | e1a3fa5d3ae63058fa2cf6dfcfaad50a8f61a034 (patch) | |
| tree | 0f934d727344568fca072aa61bc6abd71009872c | |
| parent | 03e098e7a03706ec4491f79a8aa28d498c487a9a (diff) | |
| download | ffmpeg-e1a3fa5d3ae63058fa2cf6dfcfaad50a8f61a034.tar.gz | |
indeo4: handle frame type 1 properly
It turns out that this frame type is actually intra and should be used as
a reference for interframes too.
| -rw-r--r-- | libavcodec/indeo4.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/libavcodec/indeo4.c b/libavcodec/indeo4.c index c8ee0becbd..b4e14f625d 100644 --- a/libavcodec/indeo4.c +++ b/libavcodec/indeo4.c @@ -40,7 +40,7 @@ */ enum { FRAMETYPE_INTRA = 0, - FRAMETYPE_BIDIR1 = 1, ///< bidirectional frame + FRAMETYPE_INTRA1 = 1, ///< intra frame with slightly different bitstream coding FRAMETYPE_INTER = 2, ///< non-droppable P-frame FRAMETYPE_BIDIR = 3, ///< bidirectional frame FRAMETYPE_INTER_NOREF = 4, ///< droppable P-frame @@ -133,8 +133,7 @@ static int decode_pic_hdr(IVI45DecContext *ctx, AVCodecContext *avctx) } #if IVI4_STREAM_ANALYSER - if ( ctx->frame_type == FRAMETYPE_BIDIR1 - || ctx->frame_type == FRAMETYPE_BIDIR) + if (ctx->frame_type == FRAMETYPE_BIDIR) ctx->has_b_frames = 1; #endif @@ -471,7 +470,8 @@ static int decode_mb_info(IVI45DecContext *ctx, IVIBandDesc *band, } else { if (band->inherit_mv) { mb->type = ref_mb->type; /* copy mb_type from corresponding reference mb */ - } else if (ctx->frame_type == FRAMETYPE_INTRA) { + } else if (ctx->frame_type == FRAMETYPE_INTRA || + ctx->frame_type == FRAMETYPE_INTRA1) { mb->type = 0; /* mb_type is always INTRA for intra-frames */ } else { mb->type = get_bits(&ctx->gb, mb_type_bits); @@ -539,6 +539,7 @@ static void switch_buffers(IVI45DecContext *ctx) { switch (ctx->prev_frame_type) { case FRAMETYPE_INTRA: + case FRAMETYPE_INTRA1: case FRAMETYPE_INTER: ctx->buf_switch ^= 1; ctx->dst_buf = ctx->buf_switch; @@ -550,6 +551,7 @@ static void switch_buffers(IVI45DecContext *ctx) switch (ctx->frame_type) { case FRAMETYPE_INTRA: + case FRAMETYPE_INTRA1: ctx->buf_switch = 0; /* FALLTHROUGH */ case FRAMETYPE_INTER: |