From f228eb737b6cb92a476e41ca68429455962d3681 Mon Sep 17 00:00:00 2001 From: Justin Ruggles Date: Sat, 5 Jan 2008 05:36:00 +0000 Subject: adjust output channels based on AVCodecContext.request_channels in AC3 parser Originally committed as revision 11412 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/aac_ac3_parser.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'libavcodec/aac_ac3_parser.c') diff --git a/libavcodec/aac_ac3_parser.c b/libavcodec/aac_ac3_parser.c index c5d7c8a5ca..46824fbbda 100644 --- a/libavcodec/aac_ac3_parser.c +++ b/libavcodec/aac_ac3_parser.c @@ -61,6 +61,13 @@ int ff_aac_ac3_parse(AVCodecParserContext *s1, /* update codec info */ avctx->sample_rate = sample_rate; avctx->channels = channels; + /* allow downmixing to mono or stereo for AC3 */ + if(avctx->request_channels > 0 && + avctx->request_channels < channels && + avctx->request_channels <= 2 && + avctx->codec_id == CODEC_ID_AC3) { + avctx->channels = avctx->request_channels; + } avctx->bit_rate = bit_rate; avctx->frame_size = samples; } -- cgit v1.2.3