show the invalid options for the first stream only (following dictionaries are identical)
free all the options array

Obsolete "ffmpeg" prefix
Use "avformat" or "avcodec" prefix
avio has no options (yet)
switcher uses "sout-switcher" prefix
Use "sout-avformat" for muxer

Avoid repeating the same implementation several times:
 incorrectly (switcher and mux didn't lock)
 redundantly (avcodec_register_all can be called several times)

Move libavXXX init at the top of a few functions, just in case.

Check uses of vlc_avcodec_(un)lock and factorize

This simplifies the code, and allows resizing non-standard blocks.

Allocate avformat context and set its I/O context before using it
This is the correct way to it (and is documented in avformat.h)

- Use AVIOContext instead of ByteIOContext
- Use avformat_open_input instead of av_open_input_stream
- Use avio_alloc_context instead of init_put_byte, allocate context on the heap
- Use AVIOContext.seekable

print avformat_open_input errors

avformat_open_input is the most recent and is documented as available since
libavformat 53.2.0 (other changes happened in 52.105)
avformat_open_input was introduced in 52.94 in FFmpeg

print avformat_find_stream_info errors

Palette data is now transmitted as a side data in AVPacket

They were copied verbatim to AVDictionary equivalents some time ago

They were only used to hold one opaque pointer

Edward Wang authored Dec 15, 2011 and Jean-Baptiste Kempf committed Dec 15, 2011

Ref #4030

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Ref: #5204

Laurent Aimar authored Jun 07, 2011 and Jean-Baptiste Kempf committed Jun 07, 2011

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Suggested-by: elenril on #libav-devel

Konstantin Pavlov authored Apr 19, 2011 and Jean-Baptiste Kempf committed Apr 19, 2011

Tested on current libav and ffmpeg @ 25846 svn revision playback only.

No need to bump current lavc/lavf requirements (52.25.0 and 52.45.0), as
all the "new" functions used arrived earlier than abovementioned
versions were published.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This should have been gone since 0.5

Split Avutil<->VLC chroma conversions functions from avcodec.h so that swscale doesn't depend on libavcodec

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

They are more than 1 year old...

Jai Menon authored Jul 18, 2010 and Jean-Baptiste Kempf committed Jul 18, 2010

The current code seems to require _all_ metadata fields to be populated
which seems a bit unreasonable.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Fixes eg youtube viewing.

This commit may eat your domestic pets.