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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-10-15 00:42:49 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-10-16 21:41:19 +0200 |
| commit | d0927ed0a802d91e60c2894a718b62859a859fe7 (patch) | |
| tree | edb66cd009f90865e63e6fd141ab56e31de7e159 | |
| parent | 81a360a5ed9e7dcc841e791c2779f09cbd99b5d3 (diff) | |
| download | ffmpeg-d0927ed0a802d91e60c2894a718b62859a859fe7.tar.gz | |
libavcodec/ffv1enc: Add option to select the quantization table
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/ffv1.h | 1 | ||||
| -rw-r--r-- | libavcodec/ffv1enc.c | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/libavcodec/ffv1.h b/libavcodec/ffv1.h index da841cf655..4f5a8ab2be 100644 --- a/libavcodec/ffv1.h +++ b/libavcodec/ffv1.h @@ -138,6 +138,7 @@ typedef struct FFV1Context { int intra; int key_frame_ok; int context_model; + int qtable; int bits_per_raw_sample; int packed_at_lsb; diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c index 74d7e6c850..0dbfebc1a1 100644 --- a/libavcodec/ffv1enc.c +++ b/libavcodec/ffv1enc.c @@ -728,7 +728,7 @@ static av_cold int encode_init(AVCodecContext *avctx) for (i = 0; i < MAX_QUANT_TABLE_SIZE; i++) { s->quant_table_count = 2; - if (s->bits_per_raw_sample <= 8) { + if ((s->qtable == -1 && s->bits_per_raw_sample <= 8) || s->qtable == 1) { s->quant_tables[0][0][i]= quant11[i]; s->quant_tables[0][1][i]= 11*quant11[i]; s->quant_tables[0][2][i]= 11*11*quant11[i]; @@ -1289,6 +1289,8 @@ static const AVOption options[] = { { .i64 = 1 }, INT_MIN, INT_MAX, VE, .unit = "coder" }, { "context", "Context model", OFFSET(context_model), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, + { "qtable", "Quantization table", OFFSET(qtable), AV_OPT_TYPE_INT, + { .i64 = -1 }, -1, 2, VE }, { NULL } }; |