Adding support for parsing AlphaMode element in the Track header
and export that information as a metadata tag. This flag indicates
presence of alpha channel data in BlockAdditional element.
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Other software does not store it in this case, and the information
is provided by the codec stream
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The QuickTime specification does not contain any hint that the atom
must not be written in some cases and both the QuickTime and the
AVID decoders do not fail if the atom is present.
This change allows to signal (visually) interlaced streams with
a codec different from uncompressed video.
As a side-effect, this fixes ticket #2202
Matroska specification lists support for BlockAdditional element
which is not supported by ffmpeg's matroska parser. This patch
adds grammar definitions for parsing that element (and few other
related elements) and then puts the data in AVPacket.side_data
with new AVPacketSideDataType AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL.
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '81726a4f0b8a43e19898e2a36fdde80583bafff0':
FATE: add tests for additional flavors of asf cover art
asfdec: do not assume every AVStream has a corresponding ASFStream
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '61f9ad2dfcb3f98b7ac5777d19d0e7b61d0be01e':
asfdec: read the full Metadata Object, not just aspect ratio information
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '36fab50e90d15352e403e4cc210890810f2fb4e2':
asfdec: silence a warning
mss4, ra288: Remove unused DSPContext local codec context members
Merged-by: Michael Niedermayer <michaelni@gmx.at>
In some ASF files this objects holds cover art and other tags. Compared to
Metadata Object it can also hold GUIDs, but we ignore these for now.
Signed-off-by: Vladimir Pantelic <vladoman@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Use the same get_tag()/get_value() as for the Extended Content Description
but handle the 16 bit vs 32 bit difference for type 2 (BOOL)
Signed-off-by: Vladimir Pantelic <vladoman@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
If its start is not aligned then aligning its end will
likely break many demuxers as they check the size and not
the position.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The DTS needs to be resynched against the segment start PTS, or the
resulting DTS may result < PTS.
Reported-by: Owen Jones <riots6@gmail.com>
See thread:
Subject: [FFmpeg-user] pts/dts error using reset_timestamps while splitting a DVD
Date: Sat, 19 Jan 2013 08:58:27 +0000
Modified the fate test crc generator to print the side_data's
crc if side_data is present.
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
