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| author | Anton Khirnov <anton@khirnov.net> | 2012-06-09 20:14:12 +0200 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2012-06-10 08:02:11 +0200 |
| commit | 3596de55fc054b5c336e7e542c26ced0505d4f2e (patch) | |
| tree | fc5c76c229b7e2abeaa1d7b1e0c959a363f85f3f | |
| parent | d7d071a673b5ca7e59ae7cc888eaa1dc24fc4f5e (diff) | |
| download | ffmpeg-3596de55fc054b5c336e7e542c26ced0505d4f2e.tar.gz | |
audioconvert: use av_popcount64 in av_get_channel_layout_nb_channels
| -rw-r--r-- | libavutil/audioconvert.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/libavutil/audioconvert.c b/libavutil/audioconvert.c index 2560127aac..1a8e5ee239 100644 --- a/libavutil/audioconvert.c +++ b/libavutil/audioconvert.c @@ -175,11 +175,7 @@ void av_get_channel_layout_string(char *buf, int buf_size, int av_get_channel_layout_nb_channels(uint64_t channel_layout) { - int count; - uint64_t x = channel_layout; - for (count = 0; x; count++) - x &= x-1; // unset lowest set bit - return count; + return av_popcount64(channel_layout); } uint64_t av_get_default_channel_layout(int nb_channels) |