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• lavc/dnxuc_parser : Use av_fourcc2str instead of av_fourcc_make_string

  12 octobre 2024, par Alexander Strasser

  lavc/dnxuc_parser : Use av_fourcc2str instead of av_fourcc_make_string
  The documentation of av_fourcc_make_string states the passed in
  
  buffer must be of at least the size of AV_FOURCC_MAX_STRING_SIZE .
  Using av_fourcc2str uses the correct buffer size and moves the
  
  buffer into a nested scope while also being shorter.
  Fixes : CID 1632380
  
  Signed-off-by : Alexander Strasser <eclipse7@gmx.net>
  

  • [DH] libavcodec/dnxuc_parser.c

• How to reinsert edited metadata stream information from the FFMETADATAFILE file ? [closed]

  6 septembre 2024, par SENYCH

  I'm working on simplifying and speeding up the process of editing video metadata for user convenience. I've successfully edited metadata streams using console commands, such as :

  


  ffmpeg -i INPUT.mp4 -map 0 -metadata:s:0 "handler_name=An other video" -metadata:s:1 "handler_name=An other audio recording in russian" -metadata:s:2 "handler_name=An other audio recording in english" -metadata:s:3 "handler_name=An other audio recording in japanese" -c copy OUTPUT.mp4


  


  However, I'd like to accomplish this through a ffmetadata file. Here's the approach I've taken :

  


  ffmpeg -t 0 -i INPUT.mp4 -map 0 -c copy -f ffmetadata ffmetadata.txt -hide_banner


  


  Original ffmetadata.txt is :

  


  ;FFMETADATA1
major_brand=isom
minor_version=512
compatible_brands=isomiso2avc1mp41
encoder=Lavf61.5.101
[STREAM]
language=und
handler_name=The best video
vendor_id=[0][0][0][0]
[STREAM]
language=rus
handler_name=The best russian language
vendor_id=[0][0][0][0]
[STREAM]
language=eng
handler_name=The best english language
vendor_id=[0][0][0][0]
[STREAM]
language=jpn
handler_name=The best japanese language
vendor_id=[0][0][0][0]


  


  Edit the ffmetadata.txt file to update the handler_name values :

  


  ;FFMETADATA1
major_brand=isom
minor_version=512
compatible_brands=isomiso2avc1mp41
encoder=Lavf61.5.101
[STREAM]
language=und
handler_name=An other video
vendor_id=[0][0][0][0]
[STREAM]
language=rus
handler_name=An other audio recording in russian
vendor_id=[0][0][0][0]
[STREAM]
language=eng
handler_name=An other audio recording in english
vendor_id=[0][0][0][0]
[STREAM]
language=jpn
handler_name=An other audio recording in japanese
vendor_id=[0][0][0][0]


  


  Attempt to apply the updated metadata from ffmetadata2.txt :

  


  C:\Users\Alexander\Videos>ffmpeg -i INPUT.mp4 -i ffmetadata2.txt -map 0:v -map 0:a -map_metadata 1 -c copy OUTPUT2.mp4 -hide_banner


  


  Despite these steps, I've noticed that only the global metadata is updated, while the metadata for each stream remains unchanged. The console output shows that metadata for each stream is not updated as expected.

  


  What am I missing ? How can I ensure that the stream-specific metadata is also updated correctly when using a ffmetadata file ?

  


  Additional Information :

  


  

  • FFmpeg version : 2024-08-26-git-98610fe95f-full_build

  


  • The ffmetadata file format and the approach I've used should be correct according to the FFmpeg documentation.

  


  


  I would greatly appreciate any recommendations or suggestions on how to solve this problem !

  


  I found a bad solution for my problem, but it still isn't ideal as it requires specifying -map_metadata:s:N 1:s:N for each stream individually, which is quite cumbersome. Is there a way to simplify this process and avoid having to set metadata for each stream separately ?

  


  The command I’m using is :

  


  C:\Users\Alexander\Videos>ffmpeg -i INPUT.mp4 -i ffmetadata2.txt -map 0 -map_metadata:s:0 1:s:0 -map_metadata:s:1 1:s:1 -map_metadata:s:2 1:s:2 -map_metadata:s:3 1:s:3 -c copy OUTPUT2.mp4 -hide_banner


  


  This works, but having to specify -map_metadata:s:N for each stream creates extra work, especially as the number of streams increases. Is there a more efficient way to handle this ?

  


• fate : Add a target for listing failed tests

  7 novembre 2024, par Martin Storsjö

  fate : Add a target for listing failed tests
  If running tests with "make -j<N> fate", the execution will stop
  
  after the first failing test. To get an overview of the whole
  
  test suite, one rather would run "make -k -j<N> fate", which then
  
  again buries the results about what tests actually failed further
  
  up in the console log.
  Add a target so one can run "make fate-list-failing", to see a list
  
  of all tests that failed the last time they were executed.
  Also add a companion target "fate-clear-reports" which removes all
  
  the old test reports. (When executing a subset of tests, the report
  
  files of all tests that aren't executed stay untouched. This also
  
  allows getting rid of reports for tests that no longer are present
  
  in the testsuite.)
  Co-authored-by : Alexander Strasser <eclipse7@gmx.net>
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] doc/build_system.txt
  • [DH] doc/fate.texi
  • [DH] tests/Makefile