Regression: M2TS not decoding in 2.1.2

See https://forum.videolan.org/viewtopic.php?f=12&t=115317

It must be tested on OSX and Windows.

http://streams.videolan.org/issues/10140/MTS%20AVCHD%20Lite%20files%20no%20picture%20bug%20since%20v.2.1.1.MTS

added Severity::normal Type::bug Version::master git + 1 deleted label

changed milestone to %Bugs paradize

assigned to @fkuehne and unassigned @MigrationBot

Works fine on Linux 2.1.2 and 2.2.0

changed the description

Fine on Windows

added Component::Video: macOS / iOS / tvOS / visionOS label and removed 1 deleted label

eedd67057b6808f4d182abb35ad441fc4c47ba3d ?

You did a bisect? I do not see at all why this commit should be related. :-)

I did not bisect, I just looked at git log -p 2.1.1..2.1.2

The regression is actually between 2.1.0 and 2.1.1. :-/

This is an issue with libav. Linking the same VLC code base against FFmpeg solves the issue.

added Status::not VLC label

closed

This seems an issue with libdvbpsi

[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 4 bytes of garbage
[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 158 bytes of garbage
[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 120 bytes of garbage
[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 82 bytes of garbage
[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 44 bytes of garbage
[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 6 bytes of garbage
[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 160 bytes of garbage
[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 122 bytes of garbage
[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 84 bytes of garbage
[0x7f0bdcc01818] ts demux warning: lost synchro
[0x7f0bdcc01818] ts demux debug: skipping 46 bytes of garbage

Using the libav ts demuxer makes the file decodable.

removed Status::not VLC label

reopened

to be noted

[0x7f0bdce0f198] packetizer_h264 packetizer warning: waiting for SPS/PPS

Gets printed a lot and by inspecting the code it means the packet gets dropped.

Enabling CODEC_FLAG_OUTPUT_CORRUPT makes the decoder output as expected. So looks like what the h264 packetizer outputs isn't exactly what the decoder expects.

I'll try to dump the initial packets and pin down better what's wrong.