[FFmpeg-user] Audio channel mapping from ac3 to aac

[firefighter44x]

Had the same problem, this works for me:

add the following at line 91 of libavcodec/libfaac.c

    if (avctx->channels == 6) {
       faac_cfg->channel_map[0] = 2;
       faac_cfg->channel_map[1] = 0;
       faac_cfg->channel_map[2] = 1;
       faac_cfg->channel_map[3] = 4;
       faac_cfg->channel_map[4] = 5;
       faac_cfg->channel_map[5] = 3;
       av_log(avctx, AV_LOG_ERROR, "setting channel map to 2 0 1 4 5 3 /
%d\n", avctx->channels);
    }

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