audio_resample can not reduce the number of channels
---
libavcodec/resample.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/libavcodec/resample.c b/libavcodec/resample.c
index fce6272..ba8ce89 100644
--- a/libavcodec/resample.c
+++ b/libavcodec/resample.c
@@ -162,9 +162,10 @@ ReSampleContext *av_audio_resample_init(int
output_channels, int input_channels,
MAX_CHANNELS);
return NULL;
}
- if (output_channels > 2 &&
- !(output_channels == 6 && input_channels == 2) &&
- output_channels != input_channels) {
+ if (output_channels != input_channels &&
+ (input_channels > 2 ||
+ output_channels > 2 &&
+ !(output_channels == 6 && input_channels == 2))) {
av_log(NULL, AV_LOG_ERROR,
"Resampling output channel count must be 1 or 2 for mono input;
1, 2 or 6 for stereo input; or N for N channel input.\n");
return NULL;
--
1.7.7
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