1. 08 Nov, 2016 1 commit
  2. 02 Jul, 2016 1 commit
  3. 28 May, 2016 1 commit
  4. 10 May, 2016 1 commit
  5. 23 Feb, 2016 1 commit
    • Anton Khirnov's avatar
      lavf: replace AVStream.codec with AVStream.codecpar · 9200514a
      Anton Khirnov authored
      Currently, AVStream contains an embedded AVCodecContext instance, which
      is used by demuxers to export stream parameters to the caller and by
      muxers to receive stream parameters from the caller. It is also used
      internally as the codec context that is passed to parsers.
      
      In addition, it is also widely used by the callers as the decoding (when
      demuxer) or encoding (when muxing) context, though this has been
      officially discouraged since Libav 11.
      
      There are multiple important problems with this approach:
          - the fields in AVCodecContext are in general one of
              * stream parameters
              * codec options
              * codec state
            However, it's not clear which ones are which. It is consequently
            unclear which fields are a demuxer allowed to set or a muxer allowed to
            read. This leads to erratic behaviour depending on whether decoding or
            encoding is being performed or not (and whether it uses the AVStream
            embedded codec context).
          - various synchronization issues arising from the fact that the same
            context is used by several different APIs (muxers/demuxers,
            parsers, bitstream filters and encoders/decoders) simultaneously, with
            there being no clear rules for who can modify what and the different
            processes being typically delayed with respect to each other.
          - avformat_find_stream_info() making it necessary to support opening
            and closing a single codec context multiple times, thus
            complicating the semantics of freeing various allocated objects in the
            codec context.
      
      Those problems are resolved by replacing the AVStream embedded codec
      context with a newly added AVCodecParameters instance, which stores only
      the stream parameters exported by the demuxers or read by the muxers.
      9200514a
  6. 27 Jul, 2015 1 commit
  7. 13 Aug, 2014 1 commit
    • Andrew Stone's avatar
      ogg: update event_flags with STREAM_/METADATA_UPDATED whenever metadata changes. · db68ef89
      Andrew Stone authored
      Originally, AVFormatContext and a metadata dict were provided to ff_vorbis_comment(),
      but this presented issues if an AVStream was being updated or the metadata on
      AVFormatContext wasn't actually being updated. To remedy this, ff_vorbis_stream_comment()
      explicitly updates a stream's metadata and sets any necessary flags.
      
      ff_vorbis_comment() does not modify any flags, and any calls to it that update
      AVFormatContext's metadata (just a single call) must also update
      AVFormatContext.event_flags after detecting any metadata changes to the provided
      dictionary, as signaled by a positive return value.
      Signed-off-by: 's avatarAnton Khirnov <anton@khirnov.net>
      db68ef89
  8. 28 May, 2014 1 commit
  9. 05 Feb, 2014 1 commit
  10. 04 Jan, 2014 1 commit
    • Mark Harris's avatar
      avformat/oggparseopus: fix segmented timestamps · 26245187
      Mark Harris authored
      Fix timestamp calculation for code 3 Ogg Opus packets with less than
      2 bytes in the last segment (e.g. packet length 255 or 256).
      A sample that would seek incorrectly in ffplay can be created with:
        ffmpeg -i in.wav -b:a 34k -vbr off -frame_duration 60 out.opus
      and libopus 1.1
      
      Also do not read past the end of the buffer when a packet has length 0.
      Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
      26245187
  11. 12 Dec, 2013 1 commit
  12. 11 Dec, 2013 2 commits
  13. 25 Nov, 2013 1 commit
  14. 14 Oct, 2013 1 commit
  15. 13 Oct, 2013 1 commit
  16. 12 Oct, 2013 1 commit
  17. 16 Sep, 2013 2 commits
  18. 20 Jul, 2012 1 commit