search

master-of-zen / Av1an

Cross-platform command-line AV1 / VP9 / HEVC / H264 encoding framework with per scene quality encoding
GNU General Public License v3.0
1.4k stars 147 forks source link

Fix "Received a packet for an attachment stream" error when encoding certain files. #841

Closed 0xBA5E64 closed 1 month ago

0xBA5E64 commented 1 month ago

I ran into an issue encoding certain mkv-files with multiple audio, subtitle and attachments, and managed to track down the issue to the way Av1an handles encoding audio; There's a lot of mapping weirdness done in ffmpeg.rs's encode_audio function: https://github.com/master-of-zen/Av1an/blob/605bad6773025ceae938d48862e9cf99685d1d98/av1an-core/src/ffmpeg.rs#L166-L187 -that ends up giving me the following error when encoding, right after Scene detection:

[matroska @ 0x560b67fa86c0] Received a packet for an attachment stream.
[aost#0:6/copy @ 0x560b67ba16c0] Error submitting a packet to the muxer: Invalid argument
[out#0/matroska @ 0x560b67b935c0] Error muxing a packet

As such, I've trimmed out many of the repeated mapping-statements to streamline the parameters. I don't know if there was a particular reason this was done the way it was before, but as far as I can tell, this works just the same way without any of the odd errors I've been encountering.