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flac muxer: write WAVEFORMATEXTENSIBLE_CHANNEL_MASK tag for multichannel files

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Anton Khirnov
2014-05-25 11:34:32 +02:00
parent d6b9ce99ea
commit 54ed488b1a
3 changed files with 36 additions and 0 deletions
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16
libavformat/flacenc_header.c
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@@ -19,6 +19,8 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/channel_layout.h"
#include "libavcodec/flac.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
@@ -45,3 +47,17 @@ int ff_flac_write_header(AVIOContext *pb, AVCodecContext *codec,
return 0;
}
int ff_flac_is_native_layout(uint64_t channel_layout)
{
if (channel_layout == AV_CH_LAYOUT_MONO ||
channel_layout == AV_CH_LAYOUT_STEREO ||
channel_layout == AV_CH_LAYOUT_SURROUND ||
channel_layout == AV_CH_LAYOUT_QUAD ||
channel_layout == AV_CH_LAYOUT_5POINT0 ||
channel_layout == AV_CH_LAYOUT_5POINT1 ||
channel_layout == AV_CH_LAYOUT_6POINT1 ||
channel_layout == AV_CH_LAYOUT_7POINT1)
return 1;
return 0;
}