ffmpeg | branch: master | nu774 <honeycom...@gmail.com> | Thu Jun 4 14:42:08 2015 +0900| [677c804aa3a78d61b21e6423165a252846c20f0e] | committer: Luca Barbato
aac: correctly map 7.1ch-wide AAC from FDK AAC encoder FDK AAC encoder outputs SCE(front)+CPE(front)+CPE(back)+CPE(back) on MODE_7_1_REAR_SURROUND configuration. Since decoder couldn't properly map 4 back channels, decoding failed unless -request_channel_layout 0x8000000000000000 has been specified. Now we treat first CPE(back) as CPE(side) on channel mapping. Signed-off-by: Luca Barbato <lu_z...@gentoo.org> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=677c804aa3a78d61b21e6423165a252846c20f0e --- libavcodec/aacdec.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c index 0c7e2c4..74628d6 100644 --- a/libavcodec/aacdec.c +++ b/libavcodec/aacdec.c @@ -291,6 +291,11 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) if (num_back_channels < 0) return 0; + if (num_side_channels == 0 && num_back_channels >= 4) { + num_side_channels = 2; + num_back_channels -= 2; + } + i = 0; if (num_front_channels & 1) { e2c_vec[i] = (struct elem_to_channel) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog