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avcodec/flvenc: Combine writing bits

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-05-25 22:07:05 +02:00
parent 7643269ec2
commit 61d34c2b8e
1 changed files with 13 additions and 10 deletions
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23
libavcodec/flvenc.c
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@ -70,20 +70,23 @@ int ff_flv_encode_picture_header(MPVMainEncContext *const m)
void ff_flv2_encode_ac_esc(PutBitContext *pb, int slevel, int level, void ff_flv2_encode_ac_esc(PutBitContext *pb, int slevel, int level,
int run, int last) int run, int last)
{ {
unsigned code;
int bits;
if (level < 64) { // 7-bit level if (level < 64) { // 7-bit level
put_bits(pb, 1, 0); bits = 1 + 1 + 6 + 7;
put_bits(pb, 1, last); code = (0 << (1 + 6 + 7)) |
put_bits(pb, 6, run); (last << (6 + 7)) |
(run << 7) |
put_sbits(pb, 7, slevel); (slevel & 0x7f);
} else { } else {
/* 11-bit level */ /* 11-bit level */
put_bits(pb, 1, 1); bits = 1 + 1 + 6 + 11;
put_bits(pb, 1, last); code = (1 << (1 + 6 + 11)) |
put_bits(pb, 6, run); (last << (6 + 11)) |
(run << 11) |
put_sbits(pb, 11, slevel); (slevel & 0x7ff);
} }
put_bits(pb, bits, code);
} }
const FFCodec ff_flv_encoder = { const FFCodec ff_flv_encoder = {