diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/lib/ffmpeg_file_encoder.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/lib/ffmpeg_file_encoder.cc b/src/lib/ffmpeg_file_encoder.cc index 1a1f8fed6..cfd82c7dc 100644 --- a/src/lib/ffmpeg_file_encoder.cc +++ b/src/lib/ffmpeg_file_encoder.cc @@ -73,6 +73,12 @@ public: _codec_context->bit_rate = channels * 128 * 1024; _codec_context->sample_fmt = sample_format; _codec_context->sample_rate = frame_rate; + /* Without this flag the AAC encoder adds the libavcodec version number to some + * packets. When this version number gets longer (e.g. minor version from 9 -> 10) + * this slightly changes the rate calculation, giving a different output and breaking + * some of our tests. + */ + _codec_context->flags |= AV_CODEC_FLAG_BITEXACT; if (codec_name == "aac" && channels == 16) { /* The default layout for AAC with 16 channels is not valid */ _codec_context->ch_layout = AV_CHANNEL_LAYOUT_HEXADECAGONAL; |