diff options
| author | James Almer <jamrial@gmail.com> | 2022-10-28 13:35:59 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2022-11-03 19:39:52 -0300 |
| commit | ced6a5affb0ab1a24278b9bade76c36b8636e267 (patch) | |
| tree | 1dcce352e07cc18a8b6a30f2e0ba0f375112a4de /libavcodec/aacdec_template.c | |
| parent | cf653aabb5b32ce2538365e32ea9db51592169c3 (diff) | |
| download | ffmpeg-ced6a5affb0ab1a24278b9bade76c36b8636e267.tar.gz | |
avcodec/aacdec: don't force a layout when a channel position is unknown
If PCE defines channels not covered by those in the standard configurations
then don't try to come up with some made up layout and just return them in the
coded order.
Fixes al08_44.mp4 from the conformance suite, now reporting and decoding all 48
channels instead of 10.
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavcodec/aacdec_template.c')
| -rw-r--r-- | libavcodec/aacdec_template.c | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/libavcodec/aacdec_template.c b/libavcodec/aacdec_template.c index 9a85692069..4a88aeae1d 100644 --- a/libavcodec/aacdec_template.c +++ b/libavcodec/aacdec_template.c @@ -325,36 +325,19 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) AAC_CHANNEL_FRONT, &layout); num_front_channels -= 2; } - while (num_front_channels >= 2) { - i += assign_pair(e2c_vec, layout_map, i, - UINT64_MAX, - UINT64_MAX, - AAC_CHANNEL_FRONT, &layout); - num_front_channels -= 2; - } + if (num_front_channels) + return 0; // Non standard PCE defined layout if (num_side_channels >= 2) { i += assign_pair(e2c_vec, layout_map, i, AV_CH_SIDE_LEFT, AV_CH_SIDE_RIGHT, - AAC_CHANNEL_FRONT, &layout); - num_side_channels -= 2; - } - while (num_side_channels >= 2) { - i += assign_pair(e2c_vec, layout_map, i, - UINT64_MAX, - UINT64_MAX, AAC_CHANNEL_SIDE, &layout); num_side_channels -= 2; } + if (num_side_channels) + return 0; // Non standard PCE defined layout - while (num_back_channels >= 4) { - i += assign_pair(e2c_vec, layout_map, i, - UINT64_MAX, - UINT64_MAX, - AAC_CHANNEL_BACK, &layout); - num_back_channels -= 2; - } if (num_back_channels >= 2) { i += assign_pair(e2c_vec, layout_map, i, AV_CH_BACK_LEFT, @@ -373,6 +356,8 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) i++; num_back_channels--; } + if (num_back_channels) + return 0; // Non standard PCE defined layout if (i < tags && layout_map[i][2] == AAC_CHANNEL_LFE) { e2c_vec[i] = (struct elem_to_channel) { |