gstreamer/gst/avi
Ronald S. Bultje 39a338d51c configure.ac: Fix configure check for mpeg2enc. We need 1.6.1.93 instead of 1.6.1.92, since the pkg-config file of 1....
Original commit message from CVS:
2004-01-01  Ronald Bultje  <rbultje@ronald.bitfreak.net>

* configure.ac:
Fix configure check for mpeg2enc. We need 1.6.1.93 instead of
1.6.1.92, since the pkg-config file of 1.6.1.92 is borked and
it therefore uses the wrong include paths. Too bad... Note
that 1.6.1.93 is not release yet. ;).
Also add a check for mplex, which is now using the lib'ified
mplex from mjpegtools, too.
* ext/ffmpeg/gstffmpegcodecmap.c:
Add codec_tag for 3ivx/xvid. For xvid, this should fix playback
issues. I don't think ffmpeg handles 3ivx correctly, so this
probably won't work. But it won't hurt either.
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_connect),
(gst_ffmpegdec_chain):
* ext/ffmpeg/gstffmpegenc.c: (gst_ffmpegenc_connect),
(gst_ffmpegenc_chain_audio):
Fix memleak in audio encoding. Close codec if open fails, this
calls the cleanup routines so we can re-use the context.
* ext/mpeg2enc/gstmpeg2enc.cc:
Fix pad template names/types, fix memory issue with getcaps().
* ext/mpeg2enc/gstmpeg2encoder.cc:
* ext/mpeg2enc/gstmpeg2encoder.hh:
Fix compile issue with new caps system (const thingy).
* ext/mpeg2enc/gstmpeg2encpicturereader.cc:
* ext/mpeg2enc/gstmpeg2encpicturereader.hh:
We read a first frame right on initing, so that we have a caps
when we init the output. This caps is cached in padprivate and
read as first frame.
* ext/mplex/Makefile.am:
* ext/mplex/gstmplex.cc:
* ext/mplex/gstmplex.h:
* ext/mplex/gstmplex.hh:
* ext/mplex/gstmplexibitstream.cc:
* ext/mplex/gstmplexibitstream.hh:
* ext/mplex/gstmplexjob.cc:
* ext/mplex/gstmplexjob.hh:
* ext/mplex/gstmplexoutputstream.cc:
* ext/mplex/gstmplexoutputstream.hh:
We wrap mjpegtools mplex. So I rewrote the plugin. The old plugin
had issues, didn't do capsnego, supported only a subset of the
mplex features and required a mplex fork in our local CVS. Plus
that it worked agaist a very old mplex version. Rewriting was
faster than updating it.
* gst-libs/ext/Makefile.am:
* gst-libs/ext/mplex/INSTRUCT:
* gst-libs/ext/mplex/Makefile.am:
* gst-libs/ext/mplex/README:
* gst-libs/ext/mplex/TODO:
* gst-libs/ext/mplex/ac3strm_in.cc:
* gst-libs/ext/mplex/audiostrm.hh:
* gst-libs/ext/mplex/audiostrm_out.cc:
* gst-libs/ext/mplex/aunit.hh:
* gst-libs/ext/mplex/bits.cc:
* gst-libs/ext/mplex/bits.hh:
* gst-libs/ext/mplex/buffer.cc:
* gst-libs/ext/mplex/buffer.hh:
* gst-libs/ext/mplex/fastintfns.h:
* gst-libs/ext/mplex/format_codes.h:
* gst-libs/ext/mplex/inputstrm.cc:
* gst-libs/ext/mplex/inputstrm.hh:
* gst-libs/ext/mplex/lpcmstrm_in.cc:
* gst-libs/ext/mplex/mjpeg_logging.cc:
* gst-libs/ext/mplex/mjpeg_logging.h:
* gst-libs/ext/mplex/mjpeg_types.h:
* gst-libs/ext/mplex/mpastrm_in.cc:
* gst-libs/ext/mplex/mpegconsts.cc:
* gst-libs/ext/mplex/mpegconsts.h:
* gst-libs/ext/mplex/mplexconsts.hh:
* gst-libs/ext/mplex/multplex.cc:
* gst-libs/ext/mplex/outputstream.hh:
* gst-libs/ext/mplex/padstrm.cc:
* gst-libs/ext/mplex/padstrm.hh:
* gst-libs/ext/mplex/stillsstream.cc:
* gst-libs/ext/mplex/stillsstream.hh:
* gst-libs/ext/mplex/systems.cc:
* gst-libs/ext/mplex/systems.hh:
* gst-libs/ext/mplex/vector.cc:
* gst-libs/ext/mplex/vector.hh:
* gst-libs/ext/mplex/videostrm.hh:
* gst-libs/ext/mplex/videostrm_in.cc:
* gst-libs/ext/mplex/videostrm_out.cc:
* gst-libs/ext/mplex/yuv4mpeg.cc:
* gst-libs/ext/mplex/yuv4mpeg.h:
* gst-libs/ext/mplex/yuv4mpeg_intern.h:
* gst-libs/ext/mplex/yuv4mpeg_ratio.cc:
We don't fork mjpegtools' mplex in our CVS anymore.
* gst/avi/gstavidemux.c: (gst_avi_demux_src_getcaps),
(gst_avi_demux_add_stream):
* gst/avi/gstavidemux.h:
Add getcaps() function for proper caps nego. This makes some
parts of AVI playback/reading work.
* sys/ximage/ximagesink.c: (gst_ximagesink_sinkconnect):
Resize window on new capsnego. This is probably wrong, but
I'm still committing it because with current capsnego, the
first successfull capsnego is auto-fixated, therefore rounded
down to the lowest values in the caps. this results in a 16x16
XWindow that is not reized when real capsnego finishes.
Dave, I see more cases of this, do you know a proper solution?
* tools/gst-launch-ext.in:
Fix MPEG-4 AAC (Apple iPod/iTunes) file commandline.
2004-01-01 22:45:57 +00:00
..
.gitignore Initial revision 2001-12-22 23:22:30 +00:00
avi-ids.h Riff, EBML, fourcc etc. work. Not fully finished, but better than what we used to have and definately worth a first b... 2003-12-07 20:00:41 +00:00
gstavi.c Riff, EBML, fourcc etc. work. Not fully finished, but better than what we used to have and definately worth a first b... 2003-12-07 20:00:41 +00:00
gstavidecoder.c api change 2002-10-02 08:05:23 +00:00
gstavidemux.c configure.ac: Fix configure check for mpeg2enc. We need 1.6.1.93 instead of 1.6.1.92, since the pkg-config file of 1.... 2004-01-01 22:45:57 +00:00
gstavidemux.h configure.ac: Fix configure check for mpeg2enc. We need 1.6.1.93 instead of 1.6.1.92, since the pkg-config file of 1.... 2004-01-01 22:45:57 +00:00
gstavimux.c Merge CAPS branch 2003-12-22 01:47:09 +00:00
gstavimux.h Riff, EBML, fourcc etc. work. Not fully finished, but better than what we used to have and definately worth a first b... 2003-12-07 20:00:41 +00:00
Makefile.am Riff, EBML, fourcc etc. work. Not fully finished, but better than what we used to have and definately worth a first b... 2003-12-07 20:00:41 +00:00
README Change everyone to video/x-msvideo 2003-11-27 21:49:39 +00:00

The avi decoder plugins 
-----------------------

The avi decoder consists of a set of gstreamer plugins:

 - demuxer (avidemux)
 - avi to gstreamer type converter (avitypes)
 - windows dlls wrappers.

the avidecoder element uses the above plugins to perform the avi
decoding. It is constructed as a custom bin which initially only has
the demuxer element in it. The demuxer has a set of padtemplates for
raw audio and video.

  (------------------------------------)
  ! avidecoder                         !
  !                                 (video/raw)...
  !     (----------)                   !
  !     ! demuxer (video/x-msvideo, auds)..
  !     !          !                   !
  !   -src         !                   !
  !  /  !         (video/x-msvideo, vids)..
 - src  !          !                   !
  !     (----------)                (audio/raw)...
  !                                    !
  (------------------------------------)

the demuxer has a set of padtemplates for the raw avi header properties.

The avi decoder will act on the new_pad signal of the demuxer element
and will attach an avitype plugin to the new pad. Caps negotiation will
convert the raw avi caps to the gstreamer caps. If the src pad of the
avitypes plugin are compatible with the avidecoder padtemplate, the 
avitype pad is ghosted to the avidecoder bin, this is the case where no
codec is needed (for raw PCM samples, for example).

When the avitypes caps are not compatible with one of the avidecoder 
templates, a static autoplugger is used the find an element to connect
the demuxers pad to the decoders padtemplate.

When no element could be found, an windec plugin is attached to the 
demuxers pad and the avitypes plugin is removed from the decoder.


example:
--------

 An avidecoder that has a video pad (decoded with windows dlls) and an
 audio pad (raw PCM).

  (----------------------------------------------------------------)
  ! avidecoder               (--------)    (------)                !
  !                          !avitypes!    !windec!       /-- (video/raw)
  !     (----------)     /-sink      src--sink   src -----         !
  !     !demuxer (video/x-msvideo,    !    !      !                !
  !     !          ! auds).. (--------)    (------)                !  
  !   -sink        !         (--------)                            !
  !  /  !        (video/x-..,!avitypes!                            !
 -sink  !          ! vids).. !        !                            !
  !     (----------)     \-sink      src -------------------- (audio/raw)
  !                          (--------)                            !
  (----------------------------------------------------------------)



TODO
----

automatically generate the padtemplates from all possible avi types
found in the registry.