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• lavf : replace AVStream.codec with AVStream.codecpar

  18 juin 2014, par Anton Khirnov

  lavf : replace AVStream.codec with AVStream.codecpar
  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.
  

  • [DBH] libavdevice/alsa.c
  • [DBH] libavdevice/alsa_dec.c
  • [DBH] libavdevice/alsa_enc.c
  • [DBH] libavdevice/bktr.c
  • [DBH] libavdevice/fbdev.c
  • [DBH] libavdevice/jack.c
  • [DBH] libavdevice/libcdio.c
  • [DBH] libavdevice/libdc1394.c
  • [DBH] libavdevice/oss_dec.c
  • [DBH] libavdevice/oss_enc.c
  • [DBH] libavdevice/pulse.c
  • [DBH] libavdevice/sndio_dec.c
  • [DBH] libavdevice/sndio_enc.c
  • [DBH] libavdevice/v4l2.c
  • [DBH] libavdevice/vfwcap.c
  • [DBH] libavdevice/x11grab.c
  • [DBH] libavdevice/xcbgrab.c
  • [DBH] libavformat/4xm.c
  • [DBH] libavformat/a64.c
  • [DBH] libavformat/aacdec.c
  • [DBH] libavformat/adtsenc.c
  • [DBH] libavformat/adxdec.c
  • [DBH] libavformat/aea.c
  • [DBH] libavformat/aiffdec.c
  • [DBH] libavformat/aiffenc.c
  • [DBH] libavformat/amr.c
  • [DBH] libavformat/anm.c
  • [DBH] libavformat/apc.c
  • [DBH] libavformat/ape.c
  • [DBH] libavformat/apetag.c
  • [DBH] libavformat/asfdec.c
  • [DBH] libavformat/asfenc.c
  • [DBH] libavformat/assdec.c
  • [DBH] libavformat/assenc.c
  • [DBH] libavformat/au.c
  • [DBH] libavformat/audiointerleave.c
  • [DBH] libavformat/avformat.h
  • [DBH] libavformat/avidec.c
  • [DBH] libavformat/avienc.c
  • [DBH] libavformat/avisynth.c
  • [DBH] libavformat/avs.c
  • [DBH] libavformat/bethsoftvid.c
  • [DBH] libavformat/bfi.c
  • [DBH] libavformat/bink.c
  • [DBH] libavformat/bmv.c
  • [DBH] libavformat/c93.c
  • [DBH] libavformat/cafdec.c
  • [DBH] libavformat/cdg.c
  • [DBH] libavformat/cdxl.c
  • [DBH] libavformat/dashenc.c
  • [DBH] libavformat/dauddec.c
  • [DBH] libavformat/daudenc.c
  • [DBH] libavformat/dfa.c
  • [DBH] libavformat/dsicin.c
  • [DBH] libavformat/dss.c
  • [DBH] libavformat/dump.c
  • [DBH] libavformat/dv.c
  • [DBH] libavformat/dvenc.c
  • [DBH] libavformat/dxa.c
  • [DBH] libavformat/eacdata.c
  • [DBH] libavformat/electronicarts.c
  • [DBH] libavformat/ffmetadec.c
  • [DBH] libavformat/filmstripdec.c
  • [DBH] libavformat/filmstripenc.c
  • [DBH] libavformat/flac_picture.c
  • [DBH] libavformat/flacdec.c
  • [DBH] libavformat/flacenc.c
  • [DBH] libavformat/flic.c
  • [DBH] libavformat/flvdec.c
  • [DBH] libavformat/flvenc.c
  • [DBH] libavformat/g722.c
  • [DBH] libavformat/g723_1.c
  • [DBH] libavformat/gif.c
  • [DBH] libavformat/gsmdec.c
  • [DBH] libavformat/gxf.c
  • [DBH] libavformat/gxfenc.c
  • [DBH] libavformat/hdsenc.c
  • [DBH] libavformat/hls.c
  • [DBH] libavformat/hlsenc.c
  • [DBH] libavformat/hnm.c
  • [DBH] libavformat/id3v2.c
  • [DBH] libavformat/id3v2enc.c
  • [DBH] libavformat/idcin.c
  • [DBH] libavformat/idroqdec.c
  • [DBH] libavformat/iff.c
  • [DBH] libavformat/ilbc.c
  • [DBH] libavformat/img2dec.c
  • [DBH] libavformat/img2enc.c
  • [DBH] libavformat/internal.h
  • [DBH] libavformat/ipmovie.c
  • [DBH] libavformat/isom.c
  • [DBH] libavformat/iss.c
  • [DBH] libavformat/iv8.c
  • [DBH] libavformat/ivfdec.c
  • [DBH] libavformat/ivfenc.c
  • [DBH] libavformat/jvdec.c
  • [DBH] libavformat/latmenc.c
  • [DBH] libavformat/lmlm4.c
  • [DBH] libavformat/lxfdec.c
  • [DBH] libavformat/matroskadec.c
  • [DBH] libavformat/matroskaenc.c
  • [DBH] libavformat/mm.c
  • [DBH] libavformat/mmf.c
  • [DBH] libavformat/mov.c
  • [DB

• lavf : reorganize URLProtocols

  19 février 2016, par Anton Khirnov

  lavf : reorganize URLProtocols
  Instead of a linked list constructed at av_register_all(), store them
  
  in a constant array of pointers.
  Since no registration is necessary now, this removes some global state
  
  from lavf. This will also allow the urlprotocol layer caller to limit
  
  the available protocols in a simple and flexible way in the following
  
  commits.
  

  • [DBH] configure
  • [DBH] libavformat/Makefile
  • [DBH] libavformat/allformats.c
  • [DBH] libavformat/avio.c
  • [DBH] libavformat/concat.c
  • [DBH] libavformat/crypto.c
  • [DBH] libavformat/file.c
  • [DBH] libavformat/gopher.c
  • [DBH] libavformat/hlsproto.c
  • [DBH] libavformat/http.c
  • [DBH] libavformat/icecast.c
  • [DBH] libavformat/librtmp.c
  • [DBH] libavformat/md5proto.c
  • [DBH] libavformat/mmsh.c
  • [DBH] libavformat/mmst.c
  • [DBH] libavformat/protocols.c
  • [DBH] libavformat/rtmpcrypt.c
  • [DBH] libavformat/rtmphttp.c
  • [DBH] libavformat/rtmpproto.c
  • [DBH] libavformat/rtpproto.c
  • [DBH] libavformat/sctp.c
  • [DBH] libavformat/srtpproto.c
  • [DBH] libavformat/tcp.c
  • [DBH] libavformat/tls_gnutls.c
  • [DBH] libavformat/tls_openssl.c
  • [DBH] libavformat/udp.c
  • [DBH] libavformat/unix.c
  • [DBH] libavformat/url.h

• Merge commit ’eef9f06508354d1c7d5624c1c18997e7974288f1’

  16 février 2016, par Derek Buitenhuis

  Merge commit ’eef9f06508354d1c7d5624c1c18997e7974288f1’
  This commit is a no-nop.
  * commit ’eef9f06508354d1c7d5624c1c18997e7974288f1’ :
  
    avplay : Allow to override the codec
  
    avplay : Statically allocate the player state
  
    avplay : Rename cur_stream to player
  
    avplay : Rename VideoState to PlayerState
  
    avplay : Allocate the refresh thread next to the decode thread
  
    avplay : Move the stream setup in the main thread
  Merged-by : Derek Buitenhuis <derek.buitenhuis@gmail.com>