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| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2014-08-11 19:43:27 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-08-14 14:28:58 +0200 |
| commit | 117bc8e6ffc744fedcf77edf2fdb33c964b83370 (patch) | |
| tree | ec482642f880e6ffa303d2325e6de434477742f0 | |
| parent | 4ba45c189ccafdedcdb703e40441fbd24fe62989 (diff) | |
| download | ffmpeg-117bc8e6ffc744fedcf77edf2fdb33c964b83370.tar.gz | |
proresenc_kostya: properly account for alpha
The packet buffer allocation considered as dct-coded, while it is
actually run-coded and thus requires a larger buffer.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/proresenc_kostya.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libavcodec/proresenc_kostya.c b/libavcodec/proresenc_kostya.c index a70ae3cbc7..c3c2363109 100644 --- a/libavcodec/proresenc_kostya.c +++ b/libavcodec/proresenc_kostya.c @@ -1208,8 +1208,6 @@ static av_cold int encode_init(AVCodecContext *avctx) ctx->bits_per_mb = ls * 8; if (ctx->chroma_factor == CFACTOR_Y444) ctx->bits_per_mb += ls * 4; - if (ctx->num_planes == 4) - ctx->bits_per_mb += ls * 4; } ctx->frame_size_upper_bound = ctx->pictures_per_frame * @@ -1218,6 +1216,14 @@ static av_cold int encode_init(AVCodecContext *avctx) (mps * ctx->bits_per_mb) / 8) + 200; + if (ctx->alpha_bits) { + // alpha plane is run-coded and might run over bit budget + ctx->frame_size_upper_bound += ctx->pictures_per_frame * + ctx->slices_per_picture * + /* num pixels per slice */ (ctx->mbs_per_slice * 256 * + /* bits per pixel */ (1 + ctx->alpha_bits + 1) + 7 >> 3); + } + avctx->codec_tag = ctx->profile_info->tag; av_log(avctx, AV_LOG_DEBUG, |