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winegstreamer: Duplicate source shutdown path into constructor with leak fixes. 

Instead of having mixing together IMFMediaSource::Shutdown() and the
constructors' failure paths, creating confusion about what should be released
where, designate ::Shutdown/::Release to shutting down fully initialized objects
without checks, and keep the partially-created object cleanup code in the
constructor.

Signed-off-by: Derek Lesho <dlesho@codeweavers.com>
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Derek Lesho 2021-09-15 18:00:08 -05:00 committed by Alexandre Julliard
parent 721b1eb2eb
commit 67734bfce3
2 changed files with 66 additions and 37 deletions
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1
dlls/winegstreamer/gst_private.h
View File

@ -22,6 +22,7 @@
#define __GST_PRIVATE_INCLUDED__
#include <assert.h>
#include <limits.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>

102
dlls/winegstreamer/media_source.c
View File

@ -733,6 +733,12 @@ static HRESULT new_media_stream(struct media_source *source,
object->IMFMediaStream_iface.lpVtbl = &media_stream_vtbl;
object->ref = 1;
if (FAILED(hr = MFCreateEventQueue(&object->event_queue)))
{
free(object);
return hr;
}
IMFMediaSource_AddRef(&source->IMFMediaSource_iface);
object->parent_source = source;
object->stream_id = stream_id;
@ -741,20 +747,11 @@ static HRESULT new_media_stream(struct media_source *source,
object->eos = FALSE;
object->wg_stream = wg_stream;
if (FAILED(hr = MFCreateEventQueue(&object->event_queue)))
goto fail;
TRACE("Created stream object %p.\n", object);
*out_stream = object;
return S_OK;
fail:
WARN("Failed to construct media stream, hr %#x.\n", hr);
IMFMediaStream_Release(&object->IMFMediaStream_iface);
return hr;
}
static HRESULT media_stream_init_desc(struct media_stream *stream)
@ -847,10 +844,16 @@ static HRESULT media_stream_init_desc(struct media_stream *stream)
goto done;
if (FAILED(hr = IMFStreamDescriptor_GetMediaTypeHandler(stream->descriptor, &type_handler)))
{
IMFStreamDescriptor_Release(stream->descriptor);
goto done;
}
if (FAILED(hr = IMFMediaTypeHandler_SetCurrentMediaType(type_handler, stream_types[0])))
{
IMFStreamDescriptor_Release(stream->descriptor);
goto done;
}
done:
if (type_handler)
@ -1213,19 +1216,13 @@ static HRESULT WINAPI media_source_Shutdown(IMFMediaSource *iface)
unix_funcs->wg_parser_disconnect(source->wg_parser);
if (source->read_thread)
{
source->read_thread_shutdown = true;
WaitForSingleObject(source->read_thread, INFINITE);
CloseHandle(source->read_thread);
}
source->read_thread_shutdown = true;
WaitForSingleObject(source->read_thread, INFINITE);
CloseHandle(source->read_thread);
if (source->pres_desc)
IMFPresentationDescriptor_Release(source->pres_desc);
if (source->event_queue)
IMFMediaEventQueue_Shutdown(source->event_queue);
if (source->byte_stream)
IMFByteStream_Release(source->byte_stream);
IMFPresentationDescriptor_Release(source->pres_desc);
IMFMediaEventQueue_Shutdown(source->event_queue);
IMFByteStream_Release(source->byte_stream);
for (i = 0; i < source->stream_count; i++)
{
@ -1233,23 +1230,18 @@ static HRESULT WINAPI media_source_Shutdown(IMFMediaSource *iface)
stream->state = STREAM_SHUTDOWN;
if (stream->event_queue)
IMFMediaEventQueue_Shutdown(stream->event_queue);
if (stream->descriptor)
IMFStreamDescriptor_Release(stream->descriptor);
if (stream->parent_source)
IMFMediaSource_Release(&stream->parent_source->IMFMediaSource_iface);
IMFMediaEventQueue_Shutdown(stream->event_queue);
IMFStreamDescriptor_Release(stream->descriptor);
IMFMediaSource_Release(&stream->parent_source->IMFMediaSource_iface);
IMFMediaStream_Release(&stream->IMFMediaStream_iface);
}
unix_funcs->wg_parser_destroy(source->wg_parser);
if (source->stream_count)
free(source->streams);
free(source->streams);
if (source->async_commands_queue)
MFUnlockWorkQueue(source->async_commands_queue);
MFUnlockWorkQueue(source->async_commands_queue);
return S_OK;
}
@ -1274,6 +1266,7 @@ static const IMFMediaSourceVtbl IMFMediaSource_vtbl =
static HRESULT media_source_constructor(IMFByteStream *bytestream, struct media_source **out_media_source)
{
IMFStreamDescriptor **descriptors = NULL;
unsigned int stream_count = UINT_MAX;
struct media_source *object;
UINT64 total_pres_time = 0;
struct wg_parser *parser;
@ -1337,15 +1330,15 @@ static HRESULT media_source_constructor(IMFByteStream *bytestream, struct media_
* leak occurs with native. */
unix_funcs->wg_parser_set_unlimited_buffering(parser);
object->stream_count = unix_funcs->wg_parser_get_stream_count(parser);
stream_count = unix_funcs->wg_parser_get_stream_count(parser);
if (!(object->streams = calloc(object->stream_count, sizeof(*object->streams))))
if (!(object->streams = calloc(stream_count, sizeof(*object->streams))))
{
hr = E_OUTOFMEMORY;
goto fail;
}
for (i = 0; i < object->stream_count; ++i)
for (i = 0; i < stream_count; ++i)
{
if (FAILED(hr = new_media_stream(object, unix_funcs->wg_parser_get_stream(parser, i), i, &object->streams[i])))
goto fail;
@ -1353,9 +1346,13 @@ static HRESULT media_source_constructor(IMFByteStream *bytestream, struct media_
if (FAILED(hr = media_stream_init_desc(object->streams[i])))
{
ERR("Failed to finish initialization of media stream %p, hr %x.\n", object->streams[i], hr);
IMFMediaStream_Release(&object->streams[i]->IMFMediaStream_iface);
IMFMediaSource_Release(&object->streams[i]->parent_source->IMFMediaSource_iface);
IMFMediaEventQueue_Release(object->streams[i]->event_queue);
free(object->streams[i]);
goto fail;
}
object->stream_count++;
}
/* init presentation descriptor */
@ -1392,8 +1389,39 @@ static HRESULT media_source_constructor(IMFByteStream *bytestream, struct media_
fail:
WARN("Failed to construct MFMediaSource, hr %#x.\n", hr);
free(descriptors);
IMFMediaSource_Release(&object->IMFMediaSource_iface);
if (descriptors)
{
for (i = 0; i < object->stream_count; i++)
IMFStreamDescriptor_Release(descriptors[i]);
free(descriptors);
}
for (i = 0; i < object->stream_count; i++)
{
struct media_stream *stream = object->streams[i];
IMFMediaEventQueue_Release(stream->event_queue);
IMFStreamDescriptor_Release(stream->descriptor);
IMFMediaSource_Release(&stream->parent_source->IMFMediaSource_iface);
free(stream);
}
free(object->streams);
if (stream_count != UINT_MAX)
unix_funcs->wg_parser_disconnect(object->wg_parser);
if (object->read_thread)
{
object->read_thread_shutdown = true;
WaitForSingleObject(object->read_thread, INFINITE);
CloseHandle(object->read_thread);
}
if (object->wg_parser)
unix_funcs->wg_parser_destroy(object->wg_parser);
if (object->async_commands_queue)
MFUnlockWorkQueue(object->async_commands_queue);
if (object->event_queue)
IMFMediaEventQueue_Release(object->event_queue);
IMFByteStream_Release(object->byte_stream);
free(object);
return hr;
}