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| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2015-09-25 17:07:38 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-09-26 17:35:04 +0200 |
| commit | dc218bd08305656d97ad51c57ee4ab2040cd2425 (patch) | |
| tree | 52580bdcc5cfc1f64f2fea1c5e534f3a73f235dd /libavcodec/dnxhddec.c | |
| parent | e4b7c3a9f21b9be84fe3ba9aed953c60720c6459 (diff) | |
| download | ffmpeg-dc218bd08305656d97ad51c57ee4ab2040cd2425.tar.gz | |
dnxhddec: parse and print adaptive color transform
Indicates a YCbCr->RGB transform at the block level. Although nothing
explicitly states it, this would assume the actual content is planar
RGB.
Currently unsupported, but the one sequence I found using it flagged
every mb that way, actually meaning the content was YCbCr, and thus
best left to the output format to decide what to do of it.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/dnxhddec.c')
| -rw-r--r-- | libavcodec/dnxhddec.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/libavcodec/dnxhddec.c b/libavcodec/dnxhddec.c index e5c5f07fd8..22d8c0b785 100644 --- a/libavcodec/dnxhddec.c +++ b/libavcodec/dnxhddec.c @@ -51,6 +51,7 @@ typedef struct DNXHDContext { int bit_depth; // 8, 10 or 0 if not initialized at all. int is_444; int mbaff; + int act; void (*decode_dct_block)(struct DNXHDContext *ctx, int16_t *block, int n, int qscale); int last_qscale; @@ -189,6 +190,11 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame, av_log(ctx->avctx, AV_LOG_WARNING, "Adaptive MB interlace flag in an unsupported profile.\n"); + ctx->act = buf[0x2C] & 7; + if (ctx->act && ctx->cid_table->cid != 1256) + av_log(ctx->avctx, AV_LOG_WARNING, + "Adaptive color transform in an unsupported profile.\n"); + // make sure profile size constraints are respected // DNx100 allows 1920->1440 and 1280->960 subsampling if (ctx->width != ctx->cid_table->width) { @@ -354,7 +360,7 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame, int dct_linesize_chroma = frame->linesize[1]; uint8_t *dest_y, *dest_u, *dest_v; int dct_y_offset, dct_x_offset; - int qscale, i; + int qscale, i, act; int interlaced_mb = 0; if (ctx->mbaff) { @@ -362,7 +368,15 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame, qscale = get_bits(&ctx->gb, 10); } else qscale = get_bits(&ctx->gb, 11); - skip_bits1(&ctx->gb); + act = get_bits1(&ctx->gb); + if (act) { + static int warned = 0; + if (!warned) { + warned = 1; + av_log(ctx->avctx, AV_LOG_ERROR, + "Unsupported adaptive color transform, patch welcome.\n"); + } + } if (qscale != ctx->last_qscale) { for (i = 0; i < 64; i++) { |