Opened 5 years ago
Last modified 5 years ago
#8050 new enhancement
Active Format Description missing (MPEG-2 and H.264)
| Reported by: | Anton Torp | Owned by: | |
|---|---|---|---|
| Priority: | wish | Component: | avcodec |
| Version: | git-master | Keywords: | mpeg2video libx264 |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Summary of the bug:
When capturing some DVB-S and DVB-T broadcasts, we can see that the bitstream of the MPEG-2 and AVC/H.264 services include often the Active Format Description (adf): https://en.wikipedia.org/wiki/Active_Format_Description
This flag is usually transmited in:
- MPEG-2: As "User Data" section (user id: "DTG1").
- H.264: As "Auxiliary data" in a SEI unit (user id: "DTG1").
None of the current mpeg2 and h264 encoders handle that flag. However, as the Bitstream Filters for MPEG-2 (mpeg2_metadata) and H.264 (h264_metadata) can handle different flags similar to this, I request to add support for set/get the ADF flag.
Thank you!
Change History (2)
comment:1 by , 5 years ago
| Keywords: | mpeg2video libx264 added; adf mpeg2_metadata h264_metadata removed |
|---|---|
| Priority: | normal → wish |
comment:2 by , 5 years ago
| Component: | avfilter → avcodec |
|---|
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