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Merge pull request #1686 from pkviet/mono_upmix

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libobs/media-io: Fix mono upmix
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Colin Edwards 2019-03-03 22:38:59 -06:00 committed by GitHub
commit 84b87df161
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1 changed files with 15 additions and 0 deletions
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15
libobs/media-io/audio-resampler-ffmpeg.c
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@ -102,6 +102,21 @@ audio_resampler_t *audio_resampler_create(const struct resample_info *dst,
return NULL;
}
if (rs->input_layout == AV_CH_LAYOUT_MONO && rs->output_ch > 1) {
const double matrix[MAX_AUDIO_CHANNELS][MAX_AUDIO_CHANNELS] = {
{1},
{1, 1},
{1, 1, 0},
{1, 1, 1, 1},
{1, 1, 1, 0, 1},
{1, 1, 1, 1, 1, 1},
{1, 1, 1, 0, 1, 1, 1},
{1, 1, 1, 0, 1, 1, 1, 1},
};
if (swr_set_matrix(rs->context, matrix[rs->output_ch - 1], 1) < 0)
blog(LOG_DEBUG, "swr_set_matrix failed for mono upmix\n");
}
errcode = swr_init(rs->context);
if (errcode != 0) {
blog(LOG_ERROR, "avresample_open failed: error code %d",