Replace sentinel NULL with nullptr, guaranteed to be correctly expanded.
NULL may be defined as plain 0 in C++; which may lead to undefined upper
bits passed in variadic function arguments, causing crashes.
See: https://ewontfix.com/11/
Add an output format option in playback settings. The options are
Detect, S16LE, and F32LE. Selecting Detect will use the existing
behavior and detect the native format when the pipeline starts. The
other options will set the format when the pipeline is built.
Modify the signals emitted by the engine when a url is determined to be
valid or invalid to send the entire request. This will allow additional
metadata to be added to the request, providing a mechanism to better
identify the request source.
When the decoder bin's src pad becomes available, check its caps
for a format. If the format is not S16LE, then apply F32LE caps
before the tee. This prevents the pipeline from negotiating
S16LE when the decoder produces other formats.
GstEnginePipeline::InitFromString was attempting to link the decoder and audio
bins twice and returning the result of the failed second attempt as it's own
status. The return value was also being ignored by the caller.
QUrl interprets a single number as an ip address, so the track URL cdda://1
would become cdda://0.0.0.1. A previous fix addresses this issue by adding an
extra character "a" to the affected URLs then removing the last instance of the
character upon usage. However, this didn't apply when a path was present
(cdda:///dev/sr0/1), but would still attempt to reverse the change later
(cdd:///dev/sr0/1).
This change applies the fix-up to all cdda urls and moves the conversion
utilities to a single location.
See: 335bc89c9 ("Workaround for broken CD playback in Qt5 (#6021)")
According to the gst_element_request_pad documentation, request pads must be
released after usage. They aren't automatically released and dereferenced when
the element is destroyed.
Add a class to wrap the URL in the playback engines. In the future, this will
contain authentication information for the specified URL. It can also include
the start and end time as well as other data that is currently specified along
with the URL.
Use qLogCat to put verbose GStreamer callback messages into a new
GstEnginePipelineCallbacks category. Filter that category instead of
the entire class by default.
The fix-up for URLs for files that that begin with // no longer works since the
QUrl class determines that these modifications are invalid, resulting in an
empty string when converted. Instead of attempting to modify the QUrl, add a
utility function that makes the correction on the encoded byte array at time of
usage.
Queue2 tends to hang up on pause, unable to start playing
again. Pipeline actually stays PLAYING with ASYNC state
change, so it becomes impossible to unpause the player
without stop or forward/backward seeks.
This reverts commit 2b280de663.
There are a number of cases where gst_pipeline_get_bus,
gst_element_get_static_pad, and g_object_get are called without releasing
references. In addition to memory usage, some of these elements hold file
descriptors. In normal operation, two file descriptors are leaked for each
played track. The default fd ulimit for many linux distros is 1024. This
is likely the cause of the crash reported in issue 6309.
This change fixes the obvious and consistent leaks, but it's probably not a
complete solution. There are many error and corner conditions that need to be
examined.
In the case that an error occurs in ReplaceDecodeBin before the bin is added to
the pipeline, unreference the object to allow cleanup. This change also separates
CreateDecodeBinFromUrl from ReplaceDecodeBin, following the pattern of
CreateDecodeBinFromString.
If ReplaceDecodeBin fails from TransitionToNext, uridecodebin_ will not be
replaced with a new element. Since TransitionToNext does not check the return
value, it unknowingly deletes uridecodebin_.
When switching between tracks with different sample rates, the probe queue blocks before the pipeline can emit EOS.
This prevents the track change from proceeding without manual intervention. This appears to be because the queue
element doesn't handle the rate change correctly (either due to buffer length, or cap negotiation).
The queue2 element however does handle this without blocking indefinitely.
Ismael Luceno
Jim Broadus
Jim Broadus
John Maguire
John Maguire
Jonas Kvinge
Dmitry Valter
luz.paz
Eoin O'Neill
Mark Furneaux