The Sequence Header Data Structure STRUCT_C for Advanced Profile
has only a one valid field which is the profile indicator. Don't
use the reserved fields for fps update like Simple/Main profile.
https://bugzilla.gnome.org/show_bug.cgi?id=705667
The Sequence Header Data Structure STRUCT_A for advanced profile
may be eight consecutive zero bytes.Don't try to override the
width and height values in this case.
https://bugzilla.gnome.org/show_bug.cgi?id=705667
Updating caps results in downstream elements potentially reconfiguring themselves
(such as decoders). If we do this in the middle of keyframes, we would result
in those elements being reconfigured and handling garbage until the next keyframe.
Instead of this only send (potentially) new codec_data when we have *both* SPS and
PPS.
https://bugzilla.gnome.org/show_bug.cgi?id=705333
The caps should always represent what the user is supposed to see.
So if there is a sequence_display_extension associated with the
stream then use the display_horizontal_size/display_vertical_size
to update the src caps (if they are less than the values provided
by sequence header).
https://bugzilla.gnome.org/show_bug.cgi?id=704009
Restore the original h264parser behaviour to report cropped dimensions
in size caps.
https://bugzilla.gnome.org/show_bug.cgi?id=694068
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Migrate the code to use the new parser API based on GstMpegVideoPacket.
Also try to optimize gst_mpegv_parse_process_config() by using more of
GstMpegVideoPacket and determining the extension_start_code_identifier
prior to calling the parser function for that extension packet.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Don't send any source caps yet if we're still in
drop-buffers-until-we-get-a-sequence-header mode.
Fixes transmuxing of many MPEG-TS/PS streams into
formats which require things like width, height or
codec_data on the input caps.
Also fixes issues when using playbin with decoder
sinks that want width/height etc.
https://bugzilla.gnome.org/show_bug.cgi?id=695879
API is now in baseparse in gstreamer.
Timestamps in MPEG-TS streams are based on the last timestamp
before the start code of the picture. GstBaseParse sets the
timestamp based on the beginning of the sequence header, if
one exists before the picture. This fixes the case where the
timestamp occurs in the MPEG-TS stream between the seq header
and picture start code.
Timestamps in MPEG-TS streams are based on the last timestamp
before the start code of the picture. GstBaseParse sets the
timestamp based on the beginning of the sequence header, if
one exists before the picture. This fixes the case where the
timestamp occurs in the MPEG-TS stream between the seq header
and picture start code.
Otherwise we will intersect with the srcpad template caps and add all the caps fields
that the parser will ever set, no matter if downstream restricts this field or not.
This requires upstream to set this field on the caps to successfully negotiate.
https://bugzilla.gnome.org/show_bug.cgi?id=690184
This allows filtering out videos for hardware decoders that do not
support GMC at all or only support a limited number of sprite warping
points (usually 1).
Right now decodebin will concider the pad template caps as fixed and if a decoder
has restriction on for example height/width it won't be autoplugged because
gst_caps_is_subset fails as those fields are missing from the pad template caps.
We fix the issue here making sure that the pad caps are fixed using data from
the stream.
Sometimes the codec_data buffer for simple/main pushed by asfdemux is 5 bytes
instead of 4. When that happens, codec_data is still valid but it seems to have
one 0x00 trailing byte. Might be a bug in the demuxer, needs more investigation.
All these formats have re-ordered PTS which the base class gets
wrong. It's better to leave them blank and let the decoder sort it
out. Better yet would be to track and interpolate the timestamps
in the subclasses (FIXME)
Change the way the pixel-aspect-ratio is computed by
interpreting the sequence header aspect ratio info
as MPEG-1 values until a sequence extension or
sequence display extension is seen, and then updating
the sequence header struct accordingly.
Fixes incorrect anamorphic display on some MPEG-2 (DVD)
sequences.
Anonymous union is an ISO C (2011) feature that is not exposed in
compilers strictly conforming to the previous standard.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
When there is no extension header, the repeat_count variable is left to 0 and
then the duration on the output buffers is calculated wrongly. Because the
duration is used to interpolate output timestamps, the output timestamps are
also wrong, causing bad framerates.
See https://bugzilla.gnome.org/show_bug.cgi?id=681535
They should take the filter caps into account and always return
the template caps appended to the actual caps. Otherwise the
parsers stop to accept unparsed streams where upstream does not
know about width, height, etc.
Fixes bug #677401.
... to allow for more efficient parsing and (more) consistent parsing API
among various codec parsers.
Fixes#672701.
Conflicts:
gst/videoparsers/gstmpegvideoparse.c
This reverts commit 91210831ee672343a296f31357144359d5c2e768.
Such explicit reset should not be needed as it is arranged for by
the baseclass in unison with monitoring for a new frame by subclass.
As such it might wrongfully hide something else going on ...
See #674073.
.. since the bytewriter is explicitly created with non-fixed size to
allow (very much so expected) growth.
Partially reverts commit 20669d461a while
trying to keep (some?) compilers happy.
IIRC, the purpose of GstByteWriter in the first place was (at least)
being able to dump data without having to fuss with memory expansion
and size issues ...
Fixes#673485.
This always happens with GstByteReader/Writer and friends when
not taking into account returned boolean of the _read/_write functions
(which is actually wrong).
Make use of the *_unchecked variant as much as possible, or take the
returned value into account.
