Commit graph

322 commits

Author SHA1 Message Date
Vincent Penquerc'h
1be86ebb2a qtmux: handle 0 size packets without dividing by 0
Coverity 1139691
2014-05-02 10:21:09 +01:00
Vincent Penquerc'h
b692539b55 qtdemux: guard against invalid frame size to avoid division by 0
Coverity 1139690
2014-05-02 09:49:32 +01:00
Vincent Penquerc'h
436c8c11a0 qtdemux: trivial typo fix 2014-05-02 09:49:17 +01:00
Luis de Bethencourt
5dc2e6bef1 qtdemux: check return from qt_demux_video_caps
Now qtdemux_video_caps() can return NULL. We need to check this return before
using it's value.

https://bugzilla.gnome.org/show_bug.cgi?id=728987
2014-04-26 20:51:36 -04:00
Tim-Philipp Müller
c9597298f9 docs: remove outdated and pointless 'Last reviewed' lines from docs
They are very confusing for people, and more often than not
also just not very accurate. Seeing 'last reviewed: 2005' in
your docs is not very confidence-inspiring. Let's just remove
those comments.
2014-04-26 23:35:17 +01:00
Luis de Bethencourt
c073a6c779 qtdemux: initialize caps pointer to null
Make sure the caps pointer returns initialized when using it in
qtdemux_parse_tree ().

https://bugzilla.gnome.org/show_bug.cgi?id=728987
2014-04-25 18:23:23 -04:00
Vincent Penquerc'h
595a9cb5c5 isomp4: fix incorrect masking for multiple tags
Coverity 206058
2014-04-16 17:44:50 +01:00
Vincent Penquerc'h
a5b7c12e35 isomp4: fix wrong atom flags set when adding samples
Coverity 206057
2014-04-16 17:44:50 +01:00
Vincent Penquerc'h
b344b29ff2 isomp4: catch fseek error
Coverity 206028
2014-04-16 17:44:50 +01:00
Vincent Penquerc'h
88eccee88c isomp4: report failures to caller
Coverity 206027
2014-04-16 17:44:50 +01:00
Jimmy Ohn
ecf188e6cd qtdemux: replace duplicated variable when parsing trex atom
https://bugzilla.gnome.org/show_bug.cgi?id=727878
2014-04-10 09:03:02 +02:00
Sebastian Dröge
d47806320d qtdemux: Properly return stream flags when parsing trex atom
https://bugzilla.gnome.org/show_bug.cgi?id=727867
2014-04-09 08:58:48 +02:00
Stefan Sauer
9d9ffba17e isomp4mux: fix copy and paste
This fixes doc warnings.
2014-02-18 22:35:45 +01:00
Stefan Sauer
35da463618 docs: use the gtk-doc syntax to link to properties
Don't use docbook unless needed. Also stip other docbook tags in the the files we fix.
2014-02-18 22:35:00 +01:00
Thiago Santos
7f1d51ba90 qtdemux: handle tags in mac encoding
Check the charset from (C)*** tags and set the charset
to convert from MAC encoding if suitable.

https://bugzilla.gnome.org/show_bug.cgi?id=723166
2014-02-13 12:37:03 -03:00
Thiago Santos
f5f27f7d0d qtmux: remove have_dts flag from pads
It was used in the past in 0.10 when there was no explicit DTS
field in buffers, now we have it in 1.x series and we can
check it directly with GST_BUFFER_DTS_IS_VALID
2014-02-07 13:10:25 -03:00
Thiago Santos
f89ba82f29 qtmux: improve support for sparse streams
Do not try to use subsequent buffer timestamps to calculate
sparse streams durations because the stream is sparse and
the buffers might not be 'time adjacent'. So rely on the
duration and give the option to the pad to provide
custom 'empty' buffers to represent the gaps in the
stream, this can vary on how the data is represented.

Right now, the only sparse stream supported is tx3g subtitles.
2014-02-07 13:10:24 -03:00
Thiago Santos
99e966e2e1 qtmux: add support for text/x-raw subtitles
Adds it to mp4mux, qtmux and gppmux.

Buffers need to be prefixed with 2 bytes for the text length before
being muxed.

https://bugzilla.gnome.org/show_bug.cgi?id=581295
2014-02-07 13:10:24 -03:00
Thiago Santos
d644cda79b qtmux: add support for the TX3G atoms
Adds functions for creating and setting values related to the
tx3g atom for raw text subtitle support.

QTFF spec has information on those atoms

https://bugzilla.gnome.org/show_bug.cgi?id=581295
2014-02-07 13:10:24 -03:00
Thiago Santos
2ae1897273 qtmux: add subtitle support to qtmuxmap structures
adds basic stubs for subtitle support around the qtmux and
qtmuxmap structures. Still no real subtitle implemented, but
basic functions in place

https://bugzilla.gnome.org/show_bug.cgi?id=581295
2014-02-07 13:10:24 -03:00
Thiago Santos
52fc078310 qtdemux: remove elst_offset variables
They are not used anymore
2014-01-15 15:33:45 -03:00
Thiago Santos
5fe1b3eb28 qtdemux: remember reverse playback when verifying the segment end
Check if the rate is positive or negative to correctly compare the current
position with the segment to make reverse playback work
2014-01-15 15:33:45 -03:00
Thiago Santos
90a5565229 qtdemux: do not ignore empty segments
Make sure empty segments are used and pushed with a gap event
to represent its data (or lack of it)

Each QtSegment is mapped into a GstSegment with the corresponding
media range. For empty QtSegments a gap event is pushed instead
of GstBuffers and it advances to the next QtSegment.

To make this work with seeks, need to keep track of the starting
'base' to make sure it remains consistently increasing when
pushing new segment events.
For example: if a seek makes qtdemux start from 5s, the first
segment will have a base=0. When the next segment is activated,
its base time will be QtSegment.time - qtdemux.segment_base so
that it doesn't include the first 5s that weren't played and
shouldn't be accounted on the running time

This purposedly will remove the fix made for
https://bugzilla.gnome.org/show_bug.cgi?id=700264, at this
point it was decided to respect the gaps, even if they cause
a delay on playback, because that's the way the file was crafted.

https://bugzilla.gnome.org/show_bug.cgi?id=345830
2014-01-15 15:33:45 -03:00
Thiago Santos
5adedf9f5a qtmux: respect the HDLR box string format for mov and isomedia
Mov spec says it uses a pascal style string, while isomedia uses
a null terminated one. Store the current atoms flavor into the HDLR
to be able to generate the correct output.

https://bugzilla.gnome.org/show_bug.cgi?id=705982
2014-01-09 11:58:46 -03:00
Thiago Santos
c1cd2f81f9 qtdemux: improve mss_mode/fragmented special handling
Make it clear what should be handled purely by mss mode:
1) Expose the streams on the first moof as there are no moov atoms
2) Properly cleanup streams on flushes

Add a note about the meaning of upstream_newsegment and mss_mode
for future reference.

Make all other special fragment handling shared for both dash
and mss streams.
2013-12-27 12:04:49 -03:00
Thiago Santos
a82f3418fd qtdemux: drain the adapter before pushing EOS
In a fragmented scenario, qtdemux is operating in push mode
and it gets a fragmented buffer. While processing its data
downstream gets unlinked (or a input-selector changes its
active pad and returns not-linked). Qtdemux stops processing
this fragment and returns not-linked upstream, leaving the
remaining data in its adapter.

When it gets an EOS it should make sure that all the data it
had received is pushed before pushing EOS.
2013-12-27 12:00:27 -03:00
Sebastian Dröge
371482a90c qtdemux: Fix calcuation of descriptor length
https://bugzilla.gnome.org/show_bug.cgi?id=720813
2013-12-23 15:09:49 +01:00
Thiago Santos
1fd094d96b qtdemux: improve fragment-start tracking
Some buffers can have multiple moov atoms inside and the strategy
of using the gst_adapter_prev_pts timestamp to get the base timestamp
for the media of the fragment would fail as it would reuse the same
base timestamp for all moofs in the buffer instead of accumulating
the durations for all of them.

Heres a better explanation of the issue:
qtdemux receives a buffer where PTS(buf) = X
buf -> moofA | moofB | moofC

The problem was that PTS(buf) was used as the base timestamp for
all 3 moofs, causing all buffers to be X based. In this case we want
only moofA to be X based as it is what the PTS on buf means, and the
other moofB and moofC just use the accumulated timestamp from the
previous moofs durations.

To solve this, this patch uses gst_adapter_prev_pts distance
result, this allows qtdemux to calculate if it should use the
resulting pts or just accumulate the samples as it can identify
if the moofs belong to the same upstream buffer or not.

https://bugzilla.gnome.org/show_bug.cgi?id=719783
2013-12-04 10:36:38 -03:00
Thiago Santos
079dde49ed qtdemux: Use the timestamp of the moof as the base fragment start
In SmoothStreaming fragmented scenario, the timestamps are calculated
starting from the fragment buffer timestamp. When there is a not-linked
return from downstream, qtdemux will return upstream and will keep the
non-pushed data into its adapter.

On a new fragment buffer pushed to qtdemux, the new buffer timestamp
would overwrite the previous one that should be used on the still
to be pushed buffers. Because of this, this patch will also
update the fragment_start timestamp from the adapter last pts
to make sure the moof and timestamps are in sync and will result
in correct timestamps for all fragments.
2013-11-29 17:28:48 -03:00
Thiago Santos
45c16599ff qtdemux: avoid re-reading the same moov and entering into loop
In the scenario of "mdat | moov (with fragmented artifacts)" qtdemux
could read the moov again after the mdat because it was considering the
media as a fragmented one.

To avoid this loop this patch makes it store
the last processed moov_offset to avoid parsing it again.
And it also checks if there are any samples to play before
resturning to the mdat, so that it knows there is new data to be played.

https://bugzilla.gnome.org/show_bug.cgi?id=691570
2013-11-29 17:28:48 -03:00
Thiago Santos
fcc78aa3bd qtdemux: do not free streams if they were not created locally
When parsing a trak only free streams on failures if those streams
were created locally. They could have been created from a previous
fragment, in this case we they have valid info from the other fragment.
Including pads.

https://bugzilla.gnome.org/show_bug.cgi?id=691570
2013-11-29 17:28:48 -03:00
Tim-Philipp Müller
4278ab18ff qtdemux: fix compilation with gst debuging disabled
qtdemux.c:9452:1: error: label at end of compound statement
2013-11-29 09:21:52 +00:00
Jan Schmidt
b3b89dfec1 qtdemux: Add HydrogenAudio ReplayGain tags
Identical to the itunes (tm) version, but labelled with
org.hydrogenaudio.replaygain as the producer.
2013-11-28 22:36:44 +11:00
Jan Schmidt
fdfc6a2a86 qtdemux: Discard 2 byte subpicture packets
As for text subtitles and as suggested in #712643, throw
away the 2 byte terminator packets that some encoders insert.

This will make things better when remuxing and causes generation
of gap events.
2013-11-25 12:24:22 +11:00
Thibault Saunier
a45d470236 qtdemux: Use GstVideoInfo helper to create caps for raw video
This way we do not miss mandatory fields in caps.
At the same time use the gst_pb_utils_get_codec_description
helper to get codec description.

https://bugzilla.gnome.org/show_bug.cgi?id=712335
2013-11-22 18:52:54 -03:00
Tim-Philipp Müller
d9c2914c90 g_memmove() is deprecated
Just use plain memmove(), g_memmove() is deprecated in
recent GLib versions.

https://bugzilla.gnome.org/show_bug.cgi?id=712811
2013-11-21 15:30:34 +00:00
Jan Schmidt
81e2c8130a isomp4: Handle mp4s subpicture streams better.
Clean up the handling of mp4s streams. Use the generic esds
descriptor function to extract the palette, instead of hard coding
a wrong magic offset.

Add some more size safety checks when parsing ES descriptors, and
replace magic numbers with the descriptive constants that are already
defined.

Enhance dump output for stsd atoms.

Streams from both bug 712643 and historic bug 568278 now both work
correctly.

Fixes: #712643
2013-11-21 02:28:27 +11:00
Jan Schmidt
217d2d8deb qtdemux: Sort fourcc declarations and remove duplicates 2013-11-20 22:08:25 +11:00
Jan Schmidt
b6f581eecc qtdemux: Merge all the fourcc headers into one
Remove qtdemux_fourcc.h and ftypcc.h and put it all in fourcc.h
2013-11-20 21:48:03 +11:00
Thiago Santos
cfdadd4114 qtdemux: remove math operation from loop
The elst_offset doesn't change inside the loop, so compute it
outside
2013-11-14 18:15:20 -03:00
Stefan Sauer
1a4e7338d9 qtmux: fix playback regression
In ae1150e85c flipping a condition misaligned the
else branch, where for there condition that was change there is none.
Fixes #712303
2013-11-14 20:56:36 +01:00
Thiago Santos
33ebda8ecf qtdemux: handle fragmented files with mdat before moofs
Assume a file with atoms in the following order: moov, mdat, moof,
mdat, moof ...

The first moov usually doesn't contain any sample entries atoms (or
they are all set to 0 length), because the real samples are signaled
at the moofs. In push mode, qtdemux parses the moov and then finds the mdat,
but then it has 0 entries and assumes it is EOS.

This patch makes it continue parsing in case it is a fragmented file so that
it might find the moofs and play the media.

https://bugzilla.gnome.org/show_bug.cgi?id=710623
2013-11-07 11:22:04 -03:00
Thiago Santos
0e78ffc9d6 qtdemux: When using a buffered mdat, store all received data for later use
In push mode, when qtdemux can't use a seek to skip the mdat buffer it has
to buffer it for later use.

The issue is that after parsing the next moov/moof, there might be some
trailing bytes from the next atom in the file. This data was being discarded
along with the already parsed moov/moof and playback would fail to continue
after the contents of this moov/moof are played.

This is particularly bad on fragmented files that have the mdat before the
corresponding moof. So you'd get:

mdat|moof|mdat|moof ...

When a moof was received, it usually came with some extra bytes that would
belong to the next mdat (because upstream doesn't care about atoms alignment).
So those bytes were being discarded and playback would fail.

This patch makes qtdemux store those extra bytes to reuse them later after the
mdat is emptied.

https://bugzilla.gnome.org/show_bug.cgi?id=710623
2013-11-07 11:22:03 -03:00
Thiago Santos
2eec7909aa qtdemux: check if the end_time is defined before using it
Avoids sending EOS too soon because of overflow. Can happen on
fragmented mp4 playback.
2013-10-25 11:30:36 -03:00
Thiago Santos
673301ef48 qtdemux: use correct unref function
Events aren't GstObjects, but GstMiniObjects
2013-10-23 13:38:56 -03:00
Stefan Sauer
ae1150e85c qtdemux: rename chunks_are_chunks to chunks_are_samples and flip the logic
As the variable name suggests, sometimes chunks are chunks. Rename the variable
to tell what they are when they are not chunks.
2013-10-15 09:53:30 +02:00
Stefan Sauer
6789ba1ece qtdemux: fix typos and add more logging for unhandled parts 2013-10-15 09:53:30 +02:00
Sebastian Dröge
21947f9d13 qtdemux: Add support for the mp2v fourcc for MPEG-2 video
https://bugzilla.gnome.org/show_bug.cgi?id=709270
2013-10-03 11:59:25 +02:00
Sreerenj Balachandran
e779b6587b qtdemux: Add HEVC support
https://bugzilla.gnome.org/show_bug.cgi?id=709093
2013-10-02 11:54:24 +02:00
Hans Månsson
041946423a mp4mux: Do not require framerate in peer video caps
Remove the framerate restriction on the caps.

Reference: https://bugzilla.gnome.org/show_bug.cgi?id=708864
2013-09-28 13:02:11 +02:00