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| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2024-04-07 13:21:46 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2024-04-11 12:44:27 +0200 |
| commit | 8261d5d38c93419535dbd81116fc1d065716e039 (patch) | |
| tree | a7395d22569f0e6e954905c7003e10efeccb4f34 | |
| parent | b3d12fe200be1ddf8e48c8d5c94f8b22904f7165 (diff) | |
| download | ffmpeg-8261d5d38c93419535dbd81116fc1d065716e039.tar.gz | |
avcodec/ac3enc: Use bit-operations for bit-mask
Simply masking the LFE bit is more natural than subtracting
if set.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
| -rw-r--r-- | libavcodec/ac3enc.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c index 1a65e35161..31b9474822 100644 --- a/libavcodec/ac3enc.c +++ b/libavcodec/ac3enc.c @@ -2199,10 +2199,8 @@ static av_cold void set_channel_info(AVCodecContext *avctx) s->channels = channels; s->fbw_channels = channels - s->lfe_on; s->lfe_channel = s->lfe_on ? s->fbw_channels + 1 : -1; - if (s->lfe_on) - mask -= AV_CH_LOW_FREQUENCY; - switch (mask) { + switch (mask & ~AV_CH_LOW_FREQUENCY) { case AV_CH_LAYOUT_MONO: s->channel_mode = AC3_CHMODE_MONO; break; case AV_CH_LAYOUT_STEREO: s->channel_mode = AC3_CHMODE_STEREO; break; case AV_CH_LAYOUT_SURROUND: s->channel_mode = AC3_CHMODE_3F; break; |