Commit graph

4079 commits

Author SHA1 Message Date
Luis de Bethencourt
985ed4847f playbin: avoid possible deference of null pointer
For safety, check the pointer playbin->curr_group is valid before
reading parameters of the structure.

CID 
2015-03-30 10:50:48 +01:00
Thiago Santos
ceb26dd93d decodebin: improve debug message by printing the object
Print the pad object that EOS'd too early
2015-03-27 09:21:59 -03:00
Thiago Santos
d54d51d0d2 playbin: ignore new pads if it is shutting down
If a new pad is added after playbin has been put to READY/NULL it
should ignore new pads as it is shutting down.

This can happen when the pipeline fails to preroll (is still in READY)
and the user gives up on waiting or an error that doesn't reach
the demuxer occurs (on some event handling) and it will continue to
work and exposing pads while playbin has been put to NULL.

Without this check an input-selector is created and set to PAUSED
state, preventing playbin from properly shutting down in case it
has data blocked inside it.
2015-03-25 08:32:33 -03:00
Nicolas Dufresne
9695222b0f videorate: Don't leak the pools
gst_query_set_nth_alloction_pool() is transfer none on the pool, so we must
unref the pool when done.
2015-03-24 15:23:34 -04:00
Ilya Konstantinov
3dc3aa4e3b audioconvert: Eliminate unsigned quantizers
audio_convert_convert unpacks to default format (signed) before calling
quantize, and the unsigned variants were equivalent to signed anyway,
so we just get rid of them.
2015-03-24 16:52:07 +01:00
Ilya Konstantinov
7b398701cf audioconvert: Avoid int division in quantization
Since range size is always 2^n, we can simply use modulo (implemented
with a bitmask).

The previous implementation used 64-bit integer division, which is
done in software on ARMv7. Although the divisor was constant, the
division could not be transformed into "multiplication by magic number"
since the dividend was 64-bit.

The now-unused and not-so-fast gst_fast_random_(u)int32_range functions
were removed.

Also, implementing bug fixes:

1) ADD_DITHER_TPDF_HF_I no longer discards bias.

2) We change TPDF's noise range to be the same as RPDF's. Previously,
RPDF's noise ranged:
  { bias - dither, bias + dither }
while TPDF's noise ranged:
  { bias/2 - dither/2, bias/2 + dither/2 - 1 } +
  { bias/2 - dither/2, bias/2 + dither/2 - 1 } =
  { bias - dither, bias + dither - 2 }
Now, both range:
  { bias - dither, bias + dither - 1 }

https://bugzilla.gnome.org/show_bug.cgi?id=746661
2015-03-24 16:52:07 +01:00
Duncan Palmer
bf3e35a598 decodebin2: Set multiqueue sizes before use-buffering.
This fixes a race where the use-buffering property on a multiqueue was
set before the queue depth was changed from it's high preroll limits to
lower playback limits. This resulted in buffering messages being emitted
by the multiqueue in the short window between use-buffering being
set and the queue depth being reset.

https://bugzilla.gnome.org/show_bug.cgi?id=744308
2015-03-24 08:17:47 -03:00
Thiago Santos
b0b0ae1f24 streamsynchronizer: fix deadlock condition
The variables could have changed when the lock was released
to push a gap event. Streamsynchronizer needs to check them
again before going to sleep.

Bonus: fix a comment typo
2015-03-14 18:14:07 +00:00
Ramiro Polla
33b9535d97 playsink: remove redundant else statements 2015-03-14 14:21:32 +00:00
Ramiro Polla
b636fe29f3 playbin: don't escape percent sign in documentation code sample 2015-03-14 14:20:17 +00:00
William Manley
8328eab2de socketsrc: Add support for GstNetControlMessageMeta
multisocketsink now understands the new GstNetControlMessageMeta to allow
sending control messages (ancillary data) with data when writing to Unix
domain sockets.

Thanks to glib's `GSocketControlMessage` abstraction the code introduced
in this commit is entirely portable and doesn't introduce and additional
dependencies or conditionally compiled code, even if it is unlikely to be
of much use on non-UNIX systems.
2015-03-14 13:23:28 +01:00
William Manley
e63e023e30 multisocketsink: Add support for GstNetControlMessageMeta
multisocketsink now understands the new GstNetControlMessageMeta to allow
sending control messages (ancillary data) with data when writing to Unix
domain sockets.

A later commit will introduce a new socketsrc element which will similarly
understand `GstNetControlMessageMeta`.  This, when used with a
`GSocketControlMessage` of type `GUnixFDMessage` will allow GStreamer to
send and receive file-descriptions in ancillary data, the first step to
using memfds to implement zero-copy video IPC.

Thanks to glib's `GSocketControlMessage` abstraction the code introduced
in this commit is entirely portable and doesn't introduce and additional
dependencies or conditionally compiled code, even if it is unlikely to be
of much use on non-UNIX systems.
2015-03-14 13:23:20 +01:00
William Manley
a297b0545f socketsrc: Add connection-closed-by-peer signal
This provides notification that the socket in use was closed by the peer
and gives an opportunity to replace it with a new one which is not
closed, allowing reading from many sockets in order.

I use this in pulsevideo to implement reconnection logic to handle the
pulsevideo service dieing, such that is can be restarted without
disrupting downstream.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=739546
2015-03-13 20:05:00 +01:00
William Manley
a19ac4b85c socketsrc: Tidy up usage of g_object_unref/g_clear_object and locking
This is clearer, and should make future changes safer.  No functional
change intended.

See https://bugzilla.gnome.org/show_bug.cgi?id=739546
2015-03-13 20:05:00 +01:00
William Manley
0c054aa00d socketsrc: Refactor to simplify
* Don't bother polling, just do a blocking read, the `GCancellable` will
  take care of unlocking.  This should also be faster on MS Windows where
  the GIO documentation for `g_socket_get_available_bytes` states: "Note
  that on Windows, this function is rather inefficient in the UDP case".

* Implement `GstPushSrc.fill` rather than `GstPushSrc.create`.  This means
  that we will be using the downstream allocator which may be more
  efficient.  It also means that socketsrc is likely to respect its
  "blocksize" property (assuming that there is enough data available).

See https://bugzilla.gnome.org/show_bug.cgi?id=739546
2015-03-13 20:05:00 +01:00
William Manley
7c10499ecd tcp: Add element socketsrc
`socketsrc` can be considered a source counterpart to `multisocketsink`.
It can be considered a generalization of `tcpclientsrc` and
`tcpserversrc`:  it contains all the logic required to communicate over
the socket but none of the logic for creating the sockets/establishing
the connection in the first place, allowing the user to accomplish this
externally in whatever manner they wish making it applicable to other
types of sockets besides TCP.

This commit essentially copies the implementation directly from
tcpserversrc.  Later patches will tidy the implementation up and
re-implement `tcpclientsrc` and `tcpserversrc` in terms of `socketsrc`.

See https://bugzilla.gnome.org/show_bug.cgi?id=739546
2015-03-13 20:05:00 +01:00
William Manley
b8232a7467 multisocketsink: Map GstMemorys individually when sending
If a buffer is made up of non-contiguous `GstMemory`s `gst_buffer_map`
has to copy all the data into a new `GstMemory` which is contiguous.  By
mapping all the `GstMemory`s individually and then using scatter-gather
IO we avoid this situation.

This is a preparatory step for adding support to multisocketsink for
sending file descriptors, where a GstBuffer may be made up of several
`GstMemory`s, some of which are backed by a memfd or file, but I think this
patch is valid and useful on its own.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=746150
2015-03-13 16:20:50 +01:00
Jan Schmidt
3d60fb654b docs: Add new video functions and objects. Cleanup a little.
Add GstVideoChroma, GstVideoDither, GstVideoScaler and friends to the docs.

Remove and clean up a few obsolete/deleted refs and typos
2015-03-13 01:08:25 +11:00
Sebastian Dröge
8093e3ba94 playbin: Disconnect signals and invalidate group if it fails to activate
Otherwise playbin might move to the group directly after EOS of the next
group, and then error out again.
2015-03-12 12:18:30 +00:00
Song Bing
7ce97c723c streamsynchronizer: Remove unnecessary ERROR message.
Remove unnecessary ERROR message.
Push GAP will fail as flushing. Needn't ERROR message.

https://bugzilla.gnome.org/show_bug.cgi?id=736655
2015-03-11 15:48:42 +00:00
Wim Taymans
9bbfc3c848 videotestsrc: add all colors mode 2015-03-10 12:27:03 +01:00
Tim-Philipp Müller
c53ba4beeb Fix double semicolons 2015-03-10 09:27:08 +00:00
Olivier Crete
124b6ee03c videorate: Accept any capsfeatures 2015-03-09 21:39:02 -04:00
Sebastian Dröge
40f4daffd1 volume: Explicitly cast integers to doubles and then back to integers after multiplication
gcc 4.9.1 on ARM seems to have a bug that causes it to cast the float to an
integer first, resulting in a 0 scale factor for volume < 1.0.

As a side effect this change here will also improve accuracy of the result a
bit because we go via doubles instead of floats.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65325
https://bugzilla.gnome.org/show_bug.cgi?id=745667
2015-03-05 14:22:12 +01:00
Arun Raghavan
dfdbc1c379 adder: Drop custom latency querying logic
The default latency query handler now implements the same logic already.
2015-02-27 00:52:05 +05:30
Edward Hervey
7813315a4c playback: Fix broken GList modification
When we modify a GList (via g_list_delete_link), always reassign the
new head to the original GList. Otherwise we end up with
filtered_errors being corrupt (the head might have been the element
removed)
2015-02-26 12:08:49 +01:00
Vincent Penquerc'h
561ddabd97 decodebin: fix deadlock when resetting buffering
This function is static, and only ever called with the expose lock
taken. It thus has no reason to take this lock itself.

This was introduced by one of my locking fixes from 741355.

https://bugzilla.gnome.org/show_bug.cgi?id=741355
2015-02-24 16:07:26 +00:00
Vincent Penquerc'h
a2ca6459a6 playbin: forward template and ring buffer settings to existing decodebins
https://bugzilla.gnome.org/show_bug.cgi?id=744844
2015-02-24 10:02:19 +00:00
Luis de Bethencourt
8703d93bbf decodebin: move null check
Check if dbin->decode_chain is NULL before running drain_and_switch_chains()
because if it is, we shouldn't run that function or it will segfault.

CID 
2015-02-23 17:24:56 +00:00
Sebastian Dröge
1dcd1a7479 decodebin: Only consider non-parser factories for generating the post-parser capsfilter caps
Otherwise if there are multiple parsers we would most likely break negotiation
of the stream-format/alignment wanted by the decoders as parsers generally
support all possible stream-formats and alignments.
2015-02-20 12:35:19 +02:00
Vincent Penquerc'h
a2ee84fa80 decodebin: fix deadlock between downward state change and pad addition
If caps on a newly added pad are NULL, analyze_new_pad will try to
acquire the chain lock to add a probe to the pad so the chain can
be built later. This comes from the streaming thread, in response
to headers or other buffers causing this pad to be added, so the
stream lock is taken.

Meanwhile, another thread might be destroying the chain from a
downward state change. This will cause the chain to be freed with
the chain lock taken, and some elements are set to NULL here, which
can include the parser. This causes pad deactivation, which tries
to take the element's pad's stream lock, deadlocking.

Fix this by keeping track of which elements need setting to NULL,
and only do this after the chain lock is released. Only the chain
manipulation needs to be locked, not the elements' state changes.

https://bugzilla.gnome.org/show_bug.cgi?id=741355
2015-02-19 13:38:35 +00:00
Vincent Penquerc'h
a848ac7abe decodebin: guard against the decode chain going while a pad is added
https://bugzilla.gnome.org/show_bug.cgi?id=741355
2015-02-19 13:38:35 +00:00
Vincent Penquerc'h
9036dc8594 decodebin: possible fix for deadlock when spamming "next song"
There was a deadlock between a thread changing decodebin/demuxer
state from PAUSED to READY, and another thread pushing data
when starting.

From the stack trace at
https://bug741355.bugzilla-attachments.gnome.org/attachment.cgi?id=292471,
I deduce the following is happening, though I did not reproduce the
problem so I'm not sure this patch fixes it.

The streaming thread (thread 2 in that stack trace) takes the demuxer's
sink pad's stream lock in gst_ogg_demux_perform_seek_pull and will
activate a new chain. This ends up causing the expose lock being taken
in _pad_added_cb in decodebin.

Meanwhile, a state changed is triggered on thread 1, which takes the
expose lock in decodebin in gst_decode_bin_change_state, then frees
the previous chain, which ends up calling gst_pad_stop_task on the
demuxer's task, which in turn takes the demuxer's sink pad's stream
lock, deadlocking as both threads are now waiting for each other.

https://bugzilla.gnome.org/show_bug.cgi?id=741355
2015-02-19 13:38:29 +00:00
Sebastian Dröge
2813e08210 uridecodebin: Reset the default query return value when the iterator has to resync 2015-02-19 01:30:05 +02:00
Sebastian Dröge
5da04ca3c7 uridecodebin: Let the latency query fail if one of the source queries fails 2015-02-19 01:22:26 +02:00
Olivier Crête
0487e1548d uridecodebin: Pass object, not GValue to debug print 2015-02-17 18:39:03 -05:00
Song Bing
fb9ca25f7f streamsynchronizer: Use the same waiting function for EOS and stream switches
Also improve the waiting condition for stream switches, which was assuming
before that the condition variable will only stop waiting once when it is
signaled. But the documentation says that there might be spurious wakeups.

https://bugzilla.gnome.org/show_bug.cgi?id=736655
2015-02-16 14:34:35 +02:00
Song Bing
2614f80309 streamsynchronizer: Send GAP events from the pads' streaming threads
Change the GAP events that are currently sent from the chain function of
the current pad to all other EOS pads. They should instead be sent from
their own streaming threads.

https://bugzilla.gnome.org/show_bug.cgi?id=736655
2015-02-16 14:12:28 +02:00
Song Bing
9f81931716 streamsynchronizer: Send GAP event to finish preroll when change state from PLAYING to PAUSED
Wait in the event function when EOS is received until all pads are EOS
and then forward the EOS event from each pads own event function.

Also send a new GAP event for EOS pads from the event function whenever
going from PLAYING->PAUSED by shortly waking up the GCond. This is needed
to allow sinks to pre-roll again, as they did not receive EOS yet because
we blocked that, but also will never get data again.

https://bugzilla.gnome.org/show_bug.cgi?id=736655
2015-02-16 14:09:43 +02:00
Stefan Sauer
c51bf98af4 playbin: improve debug log
Log the human readable pad_link_return desc as well.
2015-02-11 22:16:53 -08:00
Sebastian Dröge
8547594727 Improve and fix LATENCY query handling
This now follows the design docs everywhere, especially the maximum latency
handling.

https://bugzilla.gnome.org/show_bug.cgi?id=744106
2015-02-11 17:53:49 +02:00
Luis de Bethencourt
f85212ed4b videoscale: fix memory leak
In gst_video_scale_fixate_caps () it can goto done without freeing the memory
of the tmp GstStructure. This makes it go out of scope and leak.

CID 
2015-02-04 12:09:45 +00:00
Wim Taymans
47bd6a138c videoscale: don't do dithering 2015-01-28 17:30:53 +01:00
Luis de Bethencourt
783204824d orc: update orc files 2015-01-27 13:39:14 +00:00
Wim Taymans
3db8879f25 videoscale: disable chroma and matrix operations
Ignore chroma subsampling and color matrix transformations like the
old videoscale used to do. This is to make the performance like it was
before.

See https://bugzilla.gnome.org/show_bug.cgi?id=741987
2015-01-27 10:52:29 +01:00
Sebastian Dröge
2bd4ea6e8e Constify some static arrays everywhere 2015-01-21 09:49:47 +01:00
Vincent Penquerc'h
661588b150 dcodebin2: fix lock/unlock mismatch on multiqueue overrun 2015-01-20 15:09:13 +00:00
Jan Alexander Steffens (heftig)
a636c39638 audioresample: Try to prevent endless looping
Speex may decide not to consume any samples because it can't write any. I've
seen a hang during draining caused by the resample loop never terminating.
In that case, resampling happened as normal until olen was 0 but ilen was
still 1. _process_native then reduced ichunk to 0, so ilen never decreased
below 1 and the loop never terminated.

Instead of reverting 684cf44 ({audioresample: don't skip input samples),
break only if all output samples have been produced and speex refuses
to consume any more input samples.

https://bugzilla.gnome.org/show_bug.cgi?id=732908
2015-01-19 19:36:13 +01:00
Sebastian Dröge
63afbce6be videorate: Add $(GST_PLUGINS_BASE_CFLAGS) to be able to find gst/video/video.h 2015-01-19 11:17:18 +01:00
Nicolas Dufresne
e60158c98f videorate: Implement allocation query
The videorate element keeps 1 buffer internally. This buffer need
to be requested during allocation query otherwise the pipeline may
stall.

https://bugzilla.gnome.org/show_bug.cgi?id=738302
2015-01-18 14:58:36 -05:00