Module: libav Branch: master Commit: 5df320e167dc5b5a6fa46e2d1d59f51263dea181
Author: Anton Khirnov <[email protected]> Committer: Anton Khirnov <[email protected]> Date: Mon May 28 08:39:10 2012 +0200 audioconvert: add a function for getting the name of a single channel. --- libavutil/audioconvert.c | 11 +++++++++++ libavutil/audioconvert.h | 7 +++++++ 2 files changed, 18 insertions(+), 0 deletions(-) diff --git a/libavutil/audioconvert.c b/libavutil/audioconvert.c index 9e2f812..36d07ee 100644 --- a/libavutil/audioconvert.c +++ b/libavutil/audioconvert.c @@ -202,3 +202,14 @@ int av_get_channel_layout_channel_index(uint64_t channel_layout, channel_layout &= channel - 1; return av_get_channel_layout_nb_channels(channel_layout); } + +const char *av_get_channel_name(uint64_t channel) +{ + int i; + if (av_get_channel_layout_nb_channels(channel) != 1) + return NULL; + for (i = 0; i < 64; i++) + if ((1ULL<<i) & channel) + return get_channel_name(i); + return NULL; +} diff --git a/libavutil/audioconvert.h b/libavutil/audioconvert.h index 6f6b444..e516ae8 100644 --- a/libavutil/audioconvert.h +++ b/libavutil/audioconvert.h @@ -156,6 +156,13 @@ int av_get_channel_layout_channel_index(uint64_t channel_layout, uint64_t channel); /** + * Get the name of a given channel. + * + * @return channel name on success, NULL on error. + */ +const char *av_get_channel_name(uint64_t channel); + +/** * @} */ _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
