From af2f655c02c69aa615eb2a06000a1aa35916967a Mon Sep 17 00:00:00 2001 From: Carl Eugen Hoyos Date: Wed, 25 Jan 2012 02:51:49 +0100 Subject: [PATCH] faac: Fix multi-channel ordering Signed-off-by: Alex Converse --- libavcodec/libfaac.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/libavcodec/libfaac.c b/libavcodec/libfaac.c index 66277949b0..e18e133bc7 100644 --- a/libavcodec/libfaac.c +++ b/libavcodec/libfaac.c @@ -57,6 +57,13 @@ static av_cold int Faac_encode_close(AVCodecContext *avctx) return 0; } +static const int channel_maps[][6] = { + { 2, 0, 1 }, //< C L R + { 2, 0, 1, 3 }, //< C L R Cs + { 2, 0, 1, 3, 4 }, //< C L R Ls Rs + { 2, 0, 1, 4, 5, 3 }, //< C L R Ls Rs LFE +}; + static av_cold int Faac_encode_init(AVCodecContext *avctx) { FaacAudioContext *s = avctx->priv_data; @@ -119,6 +126,9 @@ static av_cold int Faac_encode_init(AVCodecContext *avctx) } faac_cfg->outputFormat = 1; faac_cfg->inputFormat = FAAC_INPUT_16BIT; + if (avctx->channels > 2) + memcpy(faac_cfg->channel_map, channel_maps[avctx->channels-3], + avctx->channels * sizeof(int)); avctx->frame_size = samples_input / avctx->channels;