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/* GStreamer Media Source
*
* Copyright 2020 Derek Lesho
* Copyright 2020 Zebediah Figura for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "gst_private.h"
#include "mfapi.h"
#include "mferror.h"
#include "wine/list.h"
WINE_DEFAULT_DEBUG_CHANNEL(mfplat);
struct media_stream
{
IMFMediaStream IMFMediaStream_iface;
LONG ref;
struct media_source *parent_source;
IMFMediaEventQueue *event_queue;
IMFStreamDescriptor *descriptor;
struct wg_parser_stream *wg_stream;
IUnknown **token_queue;
LONG token_queue_count;
LONG token_queue_cap;
enum
{
STREAM_INACTIVE,
STREAM_SHUTDOWN,
STREAM_RUNNING,
} state;
DWORD stream_id;
BOOL eos;
};
enum source_async_op
{
SOURCE_ASYNC_START,
SOURCE_ASYNC_PAUSE,
SOURCE_ASYNC_STOP,
SOURCE_ASYNC_REQUEST_SAMPLE,
};
struct source_async_command
{
IUnknown IUnknown_iface;
LONG refcount;
enum source_async_op op;
union
{
struct
{
IMFPresentationDescriptor *descriptor;
GUID format;
PROPVARIANT position;
} start;
struct
{
struct media_stream *stream;
IUnknown *token;
} request_sample;
} u;
};
struct media_source
{
IMFMediaSource IMFMediaSource_iface;
IMFGetService IMFGetService_iface;
IMFRateSupport IMFRateSupport_iface;
IMFRateControl IMFRateControl_iface;
IMFAsyncCallback async_commands_callback;
LONG ref;
DWORD async_commands_queue;
IMFMediaEventQueue *event_queue;
IMFByteStream *byte_stream;
struct wg_parser *wg_parser;
struct media_stream **streams;
ULONG stream_count;
IMFPresentationDescriptor *pres_desc;
enum
{
SOURCE_OPENING,
SOURCE_STOPPED,
SOURCE_PAUSED,
SOURCE_RUNNING,
SOURCE_SHUTDOWN,
} state;
HANDLE read_thread;
bool read_thread_shutdown;
};
static inline struct media_stream *impl_from_IMFMediaStream(IMFMediaStream *iface)
{
return CONTAINING_RECORD(iface, struct media_stream, IMFMediaStream_iface);
}
static inline struct media_source *impl_from_IMFMediaSource(IMFMediaSource *iface)
{
return CONTAINING_RECORD(iface, struct media_source, IMFMediaSource_iface);
}
static inline struct media_source *impl_from_IMFGetService(IMFGetService *iface)
{
return CONTAINING_RECORD(iface, struct media_source, IMFGetService_iface);
}
static inline struct media_source *impl_from_IMFRateSupport(IMFRateSupport *iface)
{
return CONTAINING_RECORD(iface, struct media_source, IMFRateSupport_iface);
}
static inline struct media_source *impl_from_IMFRateControl(IMFRateControl *iface)
{
return CONTAINING_RECORD(iface, struct media_source, IMFRateControl_iface);
}
static inline struct media_source *impl_from_async_commands_callback_IMFAsyncCallback(IMFAsyncCallback *iface)
{
return CONTAINING_RECORD(iface, struct media_source, async_commands_callback);
}
static inline struct source_async_command *impl_from_async_command_IUnknown(IUnknown *iface)
{
return CONTAINING_RECORD(iface, struct source_async_command, IUnknown_iface);
}
static HRESULT WINAPI source_async_command_QueryInterface(IUnknown *iface, REFIID riid, void **obj)
{
if (IsEqualIID(riid, &IID_IUnknown))
{
*obj = iface;
IUnknown_AddRef(iface);
return S_OK;
}
WARN("Unsupported interface %s.\n", debugstr_guid(riid));
*obj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI source_async_command_AddRef(IUnknown *iface)
{
struct source_async_command *command = impl_from_async_command_IUnknown(iface);
return InterlockedIncrement(&command->refcount);
}
static ULONG WINAPI source_async_command_Release(IUnknown *iface)
{
struct source_async_command *command = impl_from_async_command_IUnknown(iface);
ULONG refcount = InterlockedDecrement(&command->refcount);
if (!refcount)
{
if (command->op == SOURCE_ASYNC_START)
PropVariantClear(&command->u.start.position);
else if (command->op == SOURCE_ASYNC_REQUEST_SAMPLE)
{
if (command->u.request_sample.token)
IUnknown_Release(command->u.request_sample.token);
}
free(command);
}
return refcount;
}
static const IUnknownVtbl source_async_command_vtbl =
{
source_async_command_QueryInterface,
source_async_command_AddRef,
source_async_command_Release,
};
static HRESULT source_create_async_op(enum source_async_op op, struct source_async_command **ret)
{
struct source_async_command *command;
if (!(command = calloc(1, sizeof(*command))))
return E_OUTOFMEMORY;
command->IUnknown_iface.lpVtbl = &source_async_command_vtbl;
command->op = op;
*ret = command;
return S_OK;
}
static HRESULT WINAPI callback_QueryInterface(IMFAsyncCallback *iface, REFIID riid, void **obj)
{
TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
if (IsEqualIID(riid, &IID_IMFAsyncCallback) ||
IsEqualIID(riid, &IID_IUnknown))
{
*obj = iface;
IMFAsyncCallback_AddRef(iface);
return S_OK;
}
WARN("Unsupported %s.\n", debugstr_guid(riid));
*obj = NULL;
return E_NOINTERFACE;
}
static HRESULT WINAPI callback_GetParameters(IMFAsyncCallback *iface,
DWORD *flags, DWORD *queue)
{
return E_NOTIMPL;
}
static ULONG WINAPI source_async_commands_callback_AddRef(IMFAsyncCallback *iface)
{
struct media_source *source = impl_from_async_commands_callback_IMFAsyncCallback(iface);
return IMFMediaSource_AddRef(&source->IMFMediaSource_iface);
}
static ULONG WINAPI source_async_commands_callback_Release(IMFAsyncCallback *iface)
{
struct media_source *source = impl_from_async_commands_callback_IMFAsyncCallback(iface);
return IMFMediaSource_Release(&source->IMFMediaSource_iface);
}
static IMFStreamDescriptor *stream_descriptor_from_id(IMFPresentationDescriptor *pres_desc, DWORD id, BOOL *selected)
{
ULONG sd_count;
IMFStreamDescriptor *ret;
unsigned int i;
if (FAILED(IMFPresentationDescriptor_GetStreamDescriptorCount(pres_desc, &sd_count)))
return NULL;
for (i = 0; i < sd_count; i++)
{
DWORD stream_id;
if (FAILED(IMFPresentationDescriptor_GetStreamDescriptorByIndex(pres_desc, i, selected, &ret)))
return NULL;
if (SUCCEEDED(IMFStreamDescriptor_GetStreamIdentifier(ret, &stream_id)) && stream_id == id)
return ret;
IMFStreamDescriptor_Release(ret);
}
return NULL;
}
static BOOL enqueue_token(struct media_stream *stream, IUnknown *token)
{
if (stream->token_queue_count == stream->token_queue_cap)
{
IUnknown **buf;
stream->token_queue_cap = stream->token_queue_cap * 2 + 1;
buf = realloc(stream->token_queue, stream->token_queue_cap * sizeof(*buf));
if (buf)
stream->token_queue = buf;
else
{
stream->token_queue_cap = stream->token_queue_count;
return FALSE;
}
}
stream->token_queue[stream->token_queue_count++] = token;
return TRUE;
}
static void flush_token_queue(struct media_stream *stream, BOOL send)
{
LONG i;
for (i = 0; i < stream->token_queue_count; i++)
{
if (send)
{
HRESULT hr;
struct source_async_command *command;
if (SUCCEEDED(hr = source_create_async_op(SOURCE_ASYNC_REQUEST_SAMPLE, &command)))
{
command->u.request_sample.stream = stream;
command->u.request_sample.token = stream->token_queue[i];
hr = MFPutWorkItem(stream->parent_source->async_commands_queue,
&stream->parent_source->async_commands_callback, &command->IUnknown_iface);
}
if (FAILED(hr))
WARN("Could not enqueue sample request, hr %#x\n", hr);
}
else if (stream->token_queue[i])
IUnknown_Release(stream->token_queue[i]);
}
free(stream->token_queue);
stream->token_queue = NULL;
stream->token_queue_count = 0;
stream->token_queue_cap = 0;
}
static void start_pipeline(struct media_source *source, struct source_async_command *command)
{
PROPVARIANT *position = &command->u.start.position;
BOOL seek_message = source->state != SOURCE_STOPPED && position->vt != VT_EMPTY;
unsigned int i;
/* seek to beginning on stop->play */
if (source->state == SOURCE_STOPPED && position->vt == VT_EMPTY)
{
position->vt = VT_I8;
position->hVal.QuadPart = 0;
}
for (i = 0; i < source->stream_count; i++)
{
struct media_stream *stream;
IMFStreamDescriptor *sd;
IMFMediaTypeHandler *mth;
IMFMediaType *current_mt;
DWORD stream_id;
BOOL was_active;
BOOL selected;
stream = source->streams[i];
IMFStreamDescriptor_GetStreamIdentifier(stream->descriptor, &stream_id);
sd = stream_descriptor_from_id(command->u.start.descriptor, stream_id, &selected);
IMFStreamDescriptor_Release(sd);
was_active = stream->state != STREAM_INACTIVE;
stream->state = selected ? STREAM_RUNNING : STREAM_INACTIVE;
if (selected)
{
struct wg_format format;
IMFStreamDescriptor_GetMediaTypeHandler(stream->descriptor, &mth);
IMFMediaTypeHandler_GetCurrentMediaType(mth, &current_mt);
mf_media_type_to_wg_format(current_mt, &format);
wg_parser_stream_enable(stream->wg_stream, &format);
IMFMediaType_Release(current_mt);
IMFMediaTypeHandler_Release(mth);
}
if (position->vt != VT_EMPTY)
stream->eos = FALSE;
if (selected)
{
TRACE("Stream %u (%p) selected\n", i, stream);
IMFMediaEventQueue_QueueEventParamUnk(source->event_queue,
was_active ? MEUpdatedStream : MENewStream, &GUID_NULL,
S_OK, (IUnknown*) &stream->IMFMediaStream_iface);
IMFMediaEventQueue_QueueEventParamVar(stream->event_queue,
seek_message ? MEStreamSeeked : MEStreamStarted, &GUID_NULL, S_OK, position);
}
}
IMFMediaEventQueue_QueueEventParamVar(source->event_queue,
seek_message ? MESourceSeeked : MESourceStarted,
&GUID_NULL, S_OK, position);
source->state = SOURCE_RUNNING;
if (position->vt == VT_I8)
wg_parser_stream_seek(source->streams[0]->wg_stream, 1.0, position->hVal.QuadPart, 0,
AM_SEEKING_AbsolutePositioning, AM_SEEKING_NoPositioning);
wg_parser_end_flush(source->wg_parser);
for (i = 0; i < source->stream_count; i++)
flush_token_queue(source->streams[i], position->vt == VT_EMPTY);
}
static void pause_pipeline(struct media_source *source)
{
unsigned int i;
for (i = 0; i < source->stream_count; i++)
{
struct media_stream *stream = source->streams[i];
if (stream->state != STREAM_INACTIVE)
{
IMFMediaEventQueue_QueueEventParamVar(stream->event_queue, MEStreamPaused, &GUID_NULL, S_OK, NULL);
}
}
IMFMediaEventQueue_QueueEventParamVar(source->event_queue, MESourcePaused, &GUID_NULL, S_OK, NULL);
source->state = SOURCE_PAUSED;
}
static void stop_pipeline(struct media_source *source)
{
unsigned int i;
wg_parser_begin_flush(source->wg_parser);
for (i = 0; i < source->stream_count; i++)
{
struct media_stream *stream = source->streams[i];
if (stream->state != STREAM_INACTIVE)
{
IMFMediaEventQueue_QueueEventParamVar(stream->event_queue, MEStreamStopped, &GUID_NULL, S_OK, NULL);
wg_parser_stream_disable(stream->wg_stream);
}
}
IMFMediaEventQueue_QueueEventParamVar(source->event_queue, MESourceStopped, &GUID_NULL, S_OK, NULL);
source->state = SOURCE_STOPPED;
for (i = 0; i < source->stream_count; i++)
flush_token_queue(source->streams[i], FALSE);
}
static void dispatch_end_of_presentation(struct media_source *source)
{
PROPVARIANT empty = {.vt = VT_EMPTY};
unsigned int i;
/* A stream has ended, check whether all have */
for (i = 0; i < source->stream_count; i++)
{
struct media_stream *stream = source->streams[i];
if (stream->state != STREAM_INACTIVE && !stream->eos)
return;
}
IMFMediaEventQueue_QueueEventParamVar(source->event_queue, MEEndOfPresentation, &GUID_NULL, S_OK, &empty);
}
static void send_buffer(struct media_stream *stream, const struct wg_parser_event *event, IUnknown *token)
{
IMFMediaBuffer *buffer;
IMFSample *sample;
HRESULT hr;
BYTE *data;
if (FAILED(hr = MFCreateSample(&sample)))
{
ERR("Failed to create sample, hr %#x.\n", hr);
return;
}
if (FAILED(hr = MFCreateMemoryBuffer(event->u.buffer.size, &buffer)))
{
ERR("Failed to create buffer, hr %#x.\n", hr);
IMFSample_Release(sample);
return;
}
if (FAILED(hr = IMFSample_AddBuffer(sample, buffer)))
{
ERR("Failed to add buffer, hr %#x.\n", hr);
goto out;
}
if (FAILED(hr = IMFMediaBuffer_SetCurrentLength(buffer, event->u.buffer.size)))
{
ERR("Failed to set size, hr %#x.\n", hr);
goto out;
}
if (FAILED(hr = IMFMediaBuffer_Lock(buffer, &data, NULL, NULL)))
{
ERR("Failed to lock buffer, hr %#x.\n", hr);
goto out;
}
if (!wg_parser_stream_copy_buffer(stream->wg_stream, data, 0, event->u.buffer.size))
{
wg_parser_stream_release_buffer(stream->wg_stream);
IMFMediaBuffer_Unlock(buffer);
goto out;
}
wg_parser_stream_release_buffer(stream->wg_stream);
if (FAILED(hr = IMFMediaBuffer_Unlock(buffer)))
{
ERR("Failed to unlock buffer, hr %#x.\n", hr);
goto out;
}
if (FAILED(hr = IMFSample_SetSampleTime(sample, event->u.buffer.pts)))
{
ERR("Failed to set sample time, hr %#x.\n", hr);
goto out;
}
if (FAILED(hr = IMFSample_SetSampleDuration(sample, event->u.buffer.duration)))
{
ERR("Failed to set sample duration, hr %#x.\n", hr);
goto out;
}
if (token)
IMFSample_SetUnknown(sample, &MFSampleExtension_Token, token);
IMFMediaEventQueue_QueueEventParamUnk(stream->event_queue, MEMediaSample,
&GUID_NULL, S_OK, (IUnknown *)sample);
out:
IMFMediaBuffer_Release(buffer);
IMFSample_Release(sample);
}
static void wait_on_sample(struct media_stream *stream, IUnknown *token)
{
PROPVARIANT empty_var = {.vt = VT_EMPTY};
struct wg_parser_event event;
TRACE("%p, %p\n", stream, token);
for (;;)
{
if (!wg_parser_stream_get_event(stream->wg_stream, &event))
return;
TRACE("Got event of type %#x.\n", event.type);
switch (event.type)
{
case WG_PARSER_EVENT_BUFFER:
send_buffer(stream, &event, token);
return;
case WG_PARSER_EVENT_EOS:
stream->eos = TRUE;
IMFMediaEventQueue_QueueEventParamVar(stream->event_queue, MEEndOfStream, &GUID_NULL, S_OK, &empty_var);
dispatch_end_of_presentation(stream->parent_source);
return;
case WG_PARSER_EVENT_SEGMENT:
break;
case WG_PARSER_EVENT_NONE:
assert(0);
}
}
}
static HRESULT WINAPI source_async_commands_Invoke(IMFAsyncCallback *iface, IMFAsyncResult *result)
{
struct media_source *source = impl_from_async_commands_callback_IMFAsyncCallback(iface);
struct source_async_command *command;
IUnknown *state;
HRESULT hr;
if (source->state == SOURCE_SHUTDOWN)
return S_OK;
if (FAILED(hr = IMFAsyncResult_GetState(result, &state)))
return hr;
command = impl_from_async_command_IUnknown(state);
switch (command->op)
{
case SOURCE_ASYNC_START:
start_pipeline(source, command);
break;
case SOURCE_ASYNC_PAUSE:
pause_pipeline(source);
break;
case SOURCE_ASYNC_STOP:
stop_pipeline(source);
break;
case SOURCE_ASYNC_REQUEST_SAMPLE:
if (source->state == SOURCE_PAUSED)
enqueue_token(command->u.request_sample.stream, command->u.request_sample.token);
else
wait_on_sample(command->u.request_sample.stream, command->u.request_sample.token);
break;
}
IUnknown_Release(state);
return S_OK;
}
static const IMFAsyncCallbackVtbl source_async_commands_callback_vtbl =
{
callback_QueryInterface,
source_async_commands_callback_AddRef,
source_async_commands_callback_Release,
callback_GetParameters,
source_async_commands_Invoke,
};
static DWORD CALLBACK read_thread(void *arg)
{
struct media_source *source = arg;
IMFByteStream *byte_stream = source->byte_stream;
uint32_t buffer_size = 0;
uint64_t file_size;
void *data = NULL;
IMFByteStream_GetLength(byte_stream, &file_size);
TRACE("Starting read thread for media source %p.\n", source);
while (!source->read_thread_shutdown)
{
uint64_t offset;
ULONG ret_size;
uint32_t size;
HRESULT hr;
if (!wg_parser_get_next_read_offset(source->wg_parser, &offset, &size))
continue;
if (offset >= file_size)
size = 0;
else if (offset + size >= file_size)
size = file_size - offset;
if (size > buffer_size)
{
buffer_size = size;
data = realloc(data, size);
}
ret_size = 0;
if (SUCCEEDED(hr = IMFByteStream_SetCurrentPosition(byte_stream, offset)))
hr = IMFByteStream_Read(byte_stream, data, size, &ret_size);
if (FAILED(hr))
ERR("Failed to read %u bytes at offset %I64u, hr %#x.\n", size, offset, hr);
else if (ret_size != size)
ERR("Unexpected short read: requested %u bytes, got %u.\n", size, ret_size);
wg_parser_push_data(source->wg_parser, SUCCEEDED(hr) ? data : NULL, ret_size);
}
free(data);
TRACE("Media source is shutting down; exiting.\n");
return 0;
}
static HRESULT WINAPI media_stream_QueryInterface(IMFMediaStream *iface, REFIID riid, void **out)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), out);
if (IsEqualIID(riid, &IID_IMFMediaStream) ||
IsEqualIID(riid, &IID_IMFMediaEventGenerator) ||
IsEqualIID(riid, &IID_IUnknown))
{
*out = &stream->IMFMediaStream_iface;
}
else
{
FIXME("(%s, %p)\n", debugstr_guid(riid), out);
*out = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*out);
return S_OK;
}
static ULONG WINAPI media_stream_AddRef(IMFMediaStream *iface)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
ULONG ref = InterlockedIncrement(&stream->ref);
TRACE("%p, refcount %u.\n", iface, ref);
return ref;
}
static ULONG WINAPI media_stream_Release(IMFMediaStream *iface)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
ULONG ref = InterlockedDecrement(&stream->ref);
TRACE("%p, refcount %u.\n", iface, ref);
if (!ref)
{
if (stream->event_queue)
IMFMediaEventQueue_Release(stream->event_queue);
flush_token_queue(stream, FALSE);
free(stream);
}
return ref;
}
static HRESULT WINAPI media_stream_GetEvent(IMFMediaStream *iface, DWORD flags, IMFMediaEvent **event)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
TRACE("%p, %#x, %p.\n", iface, flags, event);
return IMFMediaEventQueue_GetEvent(stream->event_queue, flags, event);
}
static HRESULT WINAPI media_stream_BeginGetEvent(IMFMediaStream *iface, IMFAsyncCallback *callback, IUnknown *state)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
TRACE("%p, %p, %p.\n", iface, callback, state);
return IMFMediaEventQueue_BeginGetEvent(stream->event_queue, callback, state);
}
static HRESULT WINAPI media_stream_EndGetEvent(IMFMediaStream *iface, IMFAsyncResult *result, IMFMediaEvent **event)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
TRACE("%p, %p, %p.\n", stream, result, event);
return IMFMediaEventQueue_EndGetEvent(stream->event_queue, result, event);
}
static HRESULT WINAPI media_stream_QueueEvent(IMFMediaStream *iface, MediaEventType event_type, REFGUID ext_type,
HRESULT hr, const PROPVARIANT *value)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
TRACE("%p, %d, %s, %#x, %p.\n", iface, event_type, debugstr_guid(ext_type), hr, value);
return IMFMediaEventQueue_QueueEventParamVar(stream->event_queue, event_type, ext_type, hr, value);
}
static HRESULT WINAPI media_stream_GetMediaSource(IMFMediaStream *iface, IMFMediaSource **source)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
TRACE("%p, %p.\n", iface, source);
if (stream->state == STREAM_SHUTDOWN)
return MF_E_SHUTDOWN;
IMFMediaSource_AddRef(&stream->parent_source->IMFMediaSource_iface);
*source = &stream->parent_source->IMFMediaSource_iface;
return S_OK;
}
static HRESULT WINAPI media_stream_GetStreamDescriptor(IMFMediaStream* iface, IMFStreamDescriptor **descriptor)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
TRACE("%p, %p.\n", iface, descriptor);
if (stream->state == STREAM_SHUTDOWN)
return MF_E_SHUTDOWN;
IMFStreamDescriptor_AddRef(stream->descriptor);
*descriptor = stream->descriptor;
return S_OK;
}
static HRESULT WINAPI media_stream_RequestSample(IMFMediaStream *iface, IUnknown *token)
{
struct media_stream *stream = impl_from_IMFMediaStream(iface);
struct source_async_command *command;
HRESULT hr;
TRACE("%p, %p.\n", iface, token);
if (stream->state == STREAM_SHUTDOWN)
return MF_E_SHUTDOWN;
if (stream->state == STREAM_INACTIVE)
{
WARN("Stream isn't active\n");
return MF_E_MEDIA_SOURCE_WRONGSTATE;
}
if (stream->eos)
{
return MF_E_END_OF_STREAM;
}
if (SUCCEEDED(hr = source_create_async_op(SOURCE_ASYNC_REQUEST_SAMPLE, &command)))
{
command->u.request_sample.stream = stream;
if (token)
IUnknown_AddRef(token);
command->u.request_sample.token = token;
hr = MFPutWorkItem(stream->parent_source->async_commands_queue,
&stream->parent_source->async_commands_callback, &command->IUnknown_iface);
}
return hr;
}
static const IMFMediaStreamVtbl media_stream_vtbl =
{
media_stream_QueryInterface,
media_stream_AddRef,
media_stream_Release,
media_stream_GetEvent,
media_stream_BeginGetEvent,
media_stream_EndGetEvent,
media_stream_QueueEvent,
media_stream_GetMediaSource,
media_stream_GetStreamDescriptor,
media_stream_RequestSample
};
static HRESULT new_media_stream(struct media_source *source,
struct wg_parser_stream *wg_stream, DWORD stream_id, struct media_stream **out_stream)
{
struct media_stream *object = calloc(1, sizeof(*object));
HRESULT hr;
TRACE("source %p, wg_stream %p, stream_id %u.\n", source, wg_stream, stream_id);
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;
object->state = STREAM_INACTIVE;
object->eos = FALSE;
object->wg_stream = wg_stream;
TRACE("Created stream object %p.\n", object);
*out_stream = object;
return S_OK;
}
static HRESULT media_stream_init_desc(struct media_stream *stream)
{
IMFMediaTypeHandler *type_handler = NULL;
IMFMediaType *stream_types[6];
struct wg_format format;
DWORD type_count = 0;
unsigned int i;
HRESULT hr;
wg_parser_stream_get_preferred_format(stream->wg_stream, &format);
if (format.major_type == WG_MAJOR_TYPE_VIDEO)
{
/* These are the most common native output types of decoders:
https://docs.microsoft.com/en-us/windows/win32/medfound/mft-decoder-expose-output-types-in-native-order */
static const GUID *const video_types[] =
{
&MFVideoFormat_NV12,
&MFVideoFormat_YV12,
&MFVideoFormat_YUY2,
&MFVideoFormat_IYUV,
&MFVideoFormat_I420,
};
IMFMediaType *base_type = mf_media_type_from_wg_format(&format);
GUID base_subtype;
IMFMediaType_GetGUID(base_type, &MF_MT_SUBTYPE, &base_subtype);
stream_types[0] = base_type;
type_count = 1;
for (i = 0; i < ARRAY_SIZE(video_types); i++)
{
IMFMediaType *new_type;
if (IsEqualGUID(&base_subtype, video_types[i]))
continue;
if (FAILED(hr = MFCreateMediaType(&new_type)))
goto done;
stream_types[type_count++] = new_type;
if (FAILED(hr = IMFMediaType_CopyAllItems(base_type, (IMFAttributes *) new_type)))
goto done;
if (FAILED(hr = IMFMediaType_SetGUID(new_type, &MF_MT_SUBTYPE, video_types[i])))
goto done;
}
}
else if (format.major_type == WG_MAJOR_TYPE_AUDIO)
{
/* Expose at least one PCM and one floating point type for the
consumer to pick from. */
static const enum wg_audio_format audio_types[] =
{
WG_AUDIO_FORMAT_S16LE,
WG_AUDIO_FORMAT_F32LE,
};
stream_types[0] = mf_media_type_from_wg_format(&format);
type_count = 1;
for (i = 0; i < ARRAY_SIZE(audio_types); i++)
{
struct wg_format new_format;
if (format.u.audio.format == audio_types[i])
continue;
new_format = format;
new_format.u.audio.format = audio_types[i];
stream_types[type_count++] = mf_media_type_from_wg_format(&new_format);
}
}
else
{
if ((stream_types[0] = mf_media_type_from_wg_format(&format)))
type_count = 1;
}
assert(type_count <= ARRAY_SIZE(stream_types));
if (!type_count)
{
ERR("Failed to establish an IMFMediaType from any of the possible stream caps!\n");
return E_FAIL;
}
if (FAILED(hr = MFCreateStreamDescriptor(stream->stream_id, type_count, stream_types, &stream->descriptor)))
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)
IMFMediaTypeHandler_Release(type_handler);
for (i = 0; i < type_count; i++)
IMFMediaType_Release(stream_types[i]);
return hr;
}
static HRESULT WINAPI media_source_get_service_QueryInterface(IMFGetService *iface, REFIID riid, void **obj)
{
struct media_source *source = impl_from_IMFGetService(iface);
return IMFMediaSource_QueryInterface(&source->IMFMediaSource_iface, riid, obj);
}
static ULONG WINAPI media_source_get_service_AddRef(IMFGetService *iface)
{
struct media_source *source = impl_from_IMFGetService(iface);
return IMFMediaSource_AddRef(&source->IMFMediaSource_iface);
}
static ULONG WINAPI media_source_get_service_Release(IMFGetService *iface)
{
struct media_source *source = impl_from_IMFGetService(iface);
return IMFMediaSource_Release(&source->IMFMediaSource_iface);
}
static HRESULT WINAPI media_source_get_service_GetService(IMFGetService *iface, REFGUID service, REFIID riid, void **obj)
{
struct media_source *source = impl_from_IMFGetService(iface);
TRACE("%p, %s, %s, %p.\n", iface, debugstr_guid(service), debugstr_guid(riid), obj);
*obj = NULL;
if (IsEqualGUID(service, &MF_RATE_CONTROL_SERVICE))
{
if (IsEqualIID(riid, &IID_IMFRateSupport))
{
*obj = &source->IMFRateSupport_iface;
}
else if (IsEqualIID(riid, &IID_IMFRateControl))
{
*obj = &source->IMFRateControl_iface;
}
}
else
FIXME("Unsupported service %s.\n", debugstr_guid(service));
if (*obj)
IUnknown_AddRef((IUnknown *)*obj);
return *obj ? S_OK : E_NOINTERFACE;
}
static const IMFGetServiceVtbl media_source_get_service_vtbl =
{
media_source_get_service_QueryInterface,
media_source_get_service_AddRef,
media_source_get_service_Release,
media_source_get_service_GetService,
};
static HRESULT WINAPI media_source_rate_support_QueryInterface(IMFRateSupport *iface, REFIID riid, void **obj)
{
struct media_source *source = impl_from_IMFRateSupport(iface);
return IMFMediaSource_QueryInterface(&source->IMFMediaSource_iface, riid, obj);
}
static ULONG WINAPI media_source_rate_support_AddRef(IMFRateSupport *iface)
{
struct media_source *source = impl_from_IMFRateSupport(iface);
return IMFMediaSource_AddRef(&source->IMFMediaSource_iface);
}
static ULONG WINAPI media_source_rate_support_Release(IMFRateSupport *iface)
{
struct media_source *source = impl_from_IMFRateSupport(iface);
return IMFMediaSource_Release(&source->IMFMediaSource_iface);
}
static HRESULT WINAPI media_source_rate_support_GetSlowestRate(IMFRateSupport *iface, MFRATE_DIRECTION direction, BOOL thin, float *rate)
{
TRACE("%p, %d, %d, %p.\n", iface, direction, thin, rate);
*rate = 0.0f;
return S_OK;
}
static HRESULT WINAPI media_source_rate_support_GetFastestRate(IMFRateSupport *iface, MFRATE_DIRECTION direction, BOOL thin, float *rate)
{
TRACE("%p, %d, %d, %p.\n", iface, direction, thin, rate);
*rate = direction == MFRATE_FORWARD ? 1e6f : -1e6f;
return S_OK;
}
static HRESULT WINAPI media_source_rate_support_IsRateSupported(IMFRateSupport *iface, BOOL thin, float rate,
float *nearest_rate)
{
TRACE("%p, %d, %f, %p.\n", iface, thin, rate, nearest_rate);
if (nearest_rate)
*nearest_rate = rate;
return rate >= -1e6f && rate <= 1e6f ? S_OK : MF_E_UNSUPPORTED_RATE;
}
static const IMFRateSupportVtbl media_source_rate_support_vtbl =
{
media_source_rate_support_QueryInterface,
media_source_rate_support_AddRef,
media_source_rate_support_Release,
media_source_rate_support_GetSlowestRate,
media_source_rate_support_GetFastestRate,
media_source_rate_support_IsRateSupported,
};
static HRESULT WINAPI media_source_rate_control_QueryInterface(IMFRateControl *iface, REFIID riid, void **obj)
{
struct media_source *source = impl_from_IMFRateControl(iface);
return IMFMediaSource_QueryInterface(&source->IMFMediaSource_iface, riid, obj);
}
static ULONG WINAPI media_source_rate_control_AddRef(IMFRateControl *iface)
{
struct media_source *source = impl_from_IMFRateControl(iface);
return IMFMediaSource_AddRef(&source->IMFMediaSource_iface);
}
static ULONG WINAPI media_source_rate_control_Release(IMFRateControl *iface)
{
struct media_source *source = impl_from_IMFRateControl(iface);
return IMFMediaSource_Release(&source->IMFMediaSource_iface);
}
static HRESULT WINAPI media_source_rate_control_SetRate(IMFRateControl *iface, BOOL thin, float rate)
{
FIXME("%p, %d, %f.\n", iface, thin, rate);
if (rate < 0.0f)
return MF_E_REVERSE_UNSUPPORTED;
if (thin)
return MF_E_THINNING_UNSUPPORTED;
if (rate != 1.0f)
return MF_E_UNSUPPORTED_RATE;
return S_OK;
}
static HRESULT WINAPI media_source_rate_control_GetRate(IMFRateControl *iface, BOOL *thin, float *rate)
{
TRACE("%p, %p, %p.\n", iface, thin, rate);
if (thin)
*thin = FALSE;
*rate = 1.0f;
return S_OK;
}
static const IMFRateControlVtbl media_source_rate_control_vtbl =
{
media_source_rate_control_QueryInterface,
media_source_rate_control_AddRef,
media_source_rate_control_Release,
media_source_rate_control_SetRate,
media_source_rate_control_GetRate,
};
static HRESULT WINAPI media_source_QueryInterface(IMFMediaSource *iface, REFIID riid, void **out)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), out);
if (IsEqualIID(riid, &IID_IMFMediaSource) ||
IsEqualIID(riid, &IID_IMFMediaEventGenerator) ||
IsEqualIID(riid, &IID_IUnknown))
{
*out = &source->IMFMediaSource_iface;
}
else if (IsEqualIID(riid, &IID_IMFGetService))
{
*out = &source->IMFGetService_iface;
}
else
{
FIXME("%s, %p.\n", debugstr_guid(riid), out);
*out = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*out);
return S_OK;
}
static ULONG WINAPI media_source_AddRef(IMFMediaSource *iface)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
ULONG ref = InterlockedIncrement(&source->ref);
TRACE("%p, refcount %u.\n", iface, ref);
return ref;
}
static ULONG WINAPI media_source_Release(IMFMediaSource *iface)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
ULONG ref = InterlockedDecrement(&source->ref);
TRACE("%p, refcount %u.\n", iface, ref);
if (!ref)
{
IMFMediaSource_Shutdown(&source->IMFMediaSource_iface);
IMFMediaEventQueue_Release(source->event_queue);
free(source);
}
return ref;
}
static HRESULT WINAPI media_source_GetEvent(IMFMediaSource *iface, DWORD flags, IMFMediaEvent **event)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
TRACE("%p, %#x, %p.\n", iface, flags, event);
return IMFMediaEventQueue_GetEvent(source->event_queue, flags, event);
}
static HRESULT WINAPI media_source_BeginGetEvent(IMFMediaSource *iface, IMFAsyncCallback *callback, IUnknown *state)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
TRACE("%p, %p, %p.\n", iface, callback, state);
return IMFMediaEventQueue_BeginGetEvent(source->event_queue, callback, state);
}
static HRESULT WINAPI media_source_EndGetEvent(IMFMediaSource *iface, IMFAsyncResult *result, IMFMediaEvent **event)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
TRACE("%p, %p, %p.\n", iface, result, event);
return IMFMediaEventQueue_EndGetEvent(source->event_queue, result, event);
}
static HRESULT WINAPI media_source_QueueEvent(IMFMediaSource *iface, MediaEventType event_type, REFGUID ext_type,
HRESULT hr, const PROPVARIANT *value)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
TRACE("%p, %d, %s, %#x, %p.\n", iface, event_type, debugstr_guid(ext_type), hr, value);
return IMFMediaEventQueue_QueueEventParamVar(source->event_queue, event_type, ext_type, hr, value);
}
static HRESULT WINAPI media_source_GetCharacteristics(IMFMediaSource *iface, DWORD *characteristics)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
TRACE("%p, %p.\n", iface, characteristics);
if (source->state == SOURCE_SHUTDOWN)
return MF_E_SHUTDOWN;
*characteristics = MFMEDIASOURCE_CAN_SEEK | MFMEDIASOURCE_CAN_PAUSE;
return S_OK;
}
static HRESULT WINAPI media_source_CreatePresentationDescriptor(IMFMediaSource *iface, IMFPresentationDescriptor **descriptor)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
TRACE("%p, %p.\n", iface, descriptor);
if (source->state == SOURCE_SHUTDOWN)
return MF_E_SHUTDOWN;
return IMFPresentationDescriptor_Clone(source->pres_desc, descriptor);
}
static HRESULT WINAPI media_source_Start(IMFMediaSource *iface, IMFPresentationDescriptor *descriptor,
const GUID *time_format, const PROPVARIANT *position)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
struct source_async_command *command;
HRESULT hr;
TRACE("%p, %p, %p, %p.\n", iface, descriptor, time_format, position);
if (source->state == SOURCE_SHUTDOWN)
return MF_E_SHUTDOWN;
if (!(IsEqualIID(time_format, &GUID_NULL)))
return MF_E_UNSUPPORTED_TIME_FORMAT;
if (SUCCEEDED(hr = source_create_async_op(SOURCE_ASYNC_START, &command)))
{
command->u.start.descriptor = descriptor;
command->u.start.format = *time_format;
PropVariantCopy(&command->u.start.position, position);
hr = MFPutWorkItem(source->async_commands_queue, &source->async_commands_callback, &command->IUnknown_iface);
}
return hr;
}
static HRESULT WINAPI media_source_Stop(IMFMediaSource *iface)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
struct source_async_command *command;
HRESULT hr;
TRACE("%p.\n", iface);
if (source->state == SOURCE_SHUTDOWN)
return MF_E_SHUTDOWN;
if (SUCCEEDED(hr = source_create_async_op(SOURCE_ASYNC_STOP, &command)))
hr = MFPutWorkItem(source->async_commands_queue, &source->async_commands_callback, &command->IUnknown_iface);
return hr;
}
static HRESULT WINAPI media_source_Pause(IMFMediaSource *iface)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
struct source_async_command *command;
HRESULT hr;
TRACE("%p.\n", iface);
if (source->state == SOURCE_SHUTDOWN)
return MF_E_SHUTDOWN;
if (source->state != SOURCE_RUNNING)
return MF_E_INVALID_STATE_TRANSITION;
if (SUCCEEDED(hr = source_create_async_op(SOURCE_ASYNC_PAUSE, &command)))
hr = MFPutWorkItem(source->async_commands_queue,
&source->async_commands_callback, &command->IUnknown_iface);
return S_OK;
}
static HRESULT WINAPI media_source_Shutdown(IMFMediaSource *iface)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
unsigned int i;
TRACE("%p.\n", iface);
if (source->state == SOURCE_SHUTDOWN)
return MF_E_SHUTDOWN;
source->state = SOURCE_SHUTDOWN;
wg_parser_disconnect(source->wg_parser);
source->read_thread_shutdown = true;
WaitForSingleObject(source->read_thread, INFINITE);
CloseHandle(source->read_thread);
IMFPresentationDescriptor_Release(source->pres_desc);
IMFMediaEventQueue_Shutdown(source->event_queue);
IMFByteStream_Release(source->byte_stream);
for (i = 0; i < source->stream_count; i++)
{
struct media_stream *stream = source->streams[i];
stream->state = STREAM_SHUTDOWN;
IMFMediaEventQueue_Shutdown(stream->event_queue);
IMFStreamDescriptor_Release(stream->descriptor);
IMFMediaSource_Release(&stream->parent_source->IMFMediaSource_iface);
IMFMediaStream_Release(&stream->IMFMediaStream_iface);
}
wg_parser_destroy(source->wg_parser);
free(source->streams);
MFUnlockWorkQueue(source->async_commands_queue);
return S_OK;
}
static const IMFMediaSourceVtbl IMFMediaSource_vtbl =
{
media_source_QueryInterface,
media_source_AddRef,
media_source_Release,
media_source_GetEvent,
media_source_BeginGetEvent,
media_source_EndGetEvent,
media_source_QueueEvent,
media_source_GetCharacteristics,
media_source_CreatePresentationDescriptor,
media_source_Start,
media_source_Stop,
media_source_Pause,
media_source_Shutdown,
};
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;
DWORD bytestream_caps;
uint64_t file_size;
unsigned int i;
HRESULT hr;
if (FAILED(hr = IMFByteStream_GetCapabilities(bytestream, &bytestream_caps)))
return hr;
if (!(bytestream_caps & MFBYTESTREAM_IS_SEEKABLE))
{
FIXME("Non-seekable bytestreams not supported.\n");
return MF_E_BYTESTREAM_NOT_SEEKABLE;
}
if (FAILED(hr = IMFByteStream_GetLength(bytestream, &file_size)))
{
FIXME("Failed to get byte stream length, hr %#x.\n", hr);
return hr;
}
if (!(object = calloc(1, sizeof(*object))))
return E_OUTOFMEMORY;
object->IMFMediaSource_iface.lpVtbl = &IMFMediaSource_vtbl;
object->IMFGetService_iface.lpVtbl = &media_source_get_service_vtbl;
object->IMFRateSupport_iface.lpVtbl = &media_source_rate_support_vtbl;
object->IMFRateControl_iface.lpVtbl = &media_source_rate_control_vtbl;
object->async_commands_callback.lpVtbl = &source_async_commands_callback_vtbl;
object->ref = 1;
object->byte_stream = bytestream;
IMFByteStream_AddRef(bytestream);
if (FAILED(hr = MFCreateEventQueue(&object->event_queue)))
goto fail;
if (FAILED(hr = MFAllocateWorkQueue(&object->async_commands_queue)))
goto fail;
/* In Media Foundation, sources may read from any media source stream
* without fear of blocking due to buffering limits on another. Trailmakers,
* a Unity3D Engine game, only reads one sample from the audio stream (and
* never deselects it). Remove buffering limits from decodebin in order to
* account for this. Note that this does leak memory, but the same memory
* leak occurs with native. */
if (!(parser = wg_parser_create(WG_PARSER_DECODEBIN, true)))
{
hr = E_OUTOFMEMORY;
goto fail;
}
object->wg_parser = parser;
object->read_thread = CreateThread(NULL, 0, read_thread, object, 0, NULL);
object->state = SOURCE_OPENING;
if (FAILED(hr = wg_parser_connect(parser, file_size)))
goto fail;
stream_count = wg_parser_get_stream_count(parser);
if (!(object->streams = calloc(stream_count, sizeof(*object->streams))))
{
hr = E_OUTOFMEMORY;
goto fail;
}
for (i = 0; i < stream_count; ++i)
{
if (FAILED(hr = new_media_stream(object, wg_parser_get_stream(parser, i), i, &object->streams[i])))
goto fail;
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);
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 */
descriptors = malloc(object->stream_count * sizeof(IMFStreamDescriptor *));
for (i = 0; i < object->stream_count; i++)
{
IMFMediaStream_GetStreamDescriptor(&object->streams[i]->IMFMediaStream_iface, &descriptors[i]);
}
if (FAILED(hr = MFCreatePresentationDescriptor(object->stream_count, descriptors, &object->pres_desc)))
goto fail;
for (i = 0; i < object->stream_count; i++)
{
IMFPresentationDescriptor_SelectStream(object->pres_desc, i);
IMFStreamDescriptor_Release(descriptors[i]);
}
free(descriptors);
descriptors = NULL;
for (i = 0; i < object->stream_count; i++)
total_pres_time = max(total_pres_time,
wg_parser_stream_get_duration(object->streams[i]->wg_stream));
if (object->stream_count)
IMFPresentationDescriptor_SetUINT64(object->pres_desc, &MF_PD_DURATION, total_pres_time);
object->state = SOURCE_STOPPED;
*out_media_source = object;
return S_OK;
fail:
WARN("Failed to construct MFMediaSource, hr %#x.\n", hr);
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)
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)
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;
}
struct winegstreamer_stream_handler_result
{
struct list entry;
IMFAsyncResult *result;
MF_OBJECT_TYPE obj_type;
IUnknown *object;
};
struct winegstreamer_stream_handler
{
IMFByteStreamHandler IMFByteStreamHandler_iface;
IMFAsyncCallback IMFAsyncCallback_iface;
LONG refcount;
struct list results;
CRITICAL_SECTION cs;
};
static struct winegstreamer_stream_handler *impl_from_IMFByteStreamHandler(IMFByteStreamHandler *iface)
{
return CONTAINING_RECORD(iface, struct winegstreamer_stream_handler, IMFByteStreamHandler_iface);
}
static struct winegstreamer_stream_handler *impl_from_IMFAsyncCallback(IMFAsyncCallback *iface)
{
return CONTAINING_RECORD(iface, struct winegstreamer_stream_handler, IMFAsyncCallback_iface);
}
static HRESULT WINAPI winegstreamer_stream_handler_QueryInterface(IMFByteStreamHandler *iface, REFIID riid, void **obj)
{
TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
if (IsEqualIID(riid, &IID_IMFByteStreamHandler) ||
IsEqualIID(riid, &IID_IUnknown))
{
*obj = iface;
IMFByteStreamHandler_AddRef(iface);
return S_OK;
}
WARN("Unsupported %s.\n", debugstr_guid(riid));
*obj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI winegstreamer_stream_handler_AddRef(IMFByteStreamHandler *iface)
{
struct winegstreamer_stream_handler *handler = impl_from_IMFByteStreamHandler(iface);
ULONG refcount = InterlockedIncrement(&handler->refcount);
TRACE("%p, refcount %u.\n", handler, refcount);
return refcount;
}
static ULONG WINAPI winegstreamer_stream_handler_Release(IMFByteStreamHandler *iface)
{
struct winegstreamer_stream_handler *handler = impl_from_IMFByteStreamHandler(iface);
ULONG refcount = InterlockedDecrement(&handler->refcount);
struct winegstreamer_stream_handler_result *result, *next;
TRACE("%p, refcount %u.\n", iface, refcount);
if (!refcount)
{
LIST_FOR_EACH_ENTRY_SAFE(result, next, &handler->results, struct winegstreamer_stream_handler_result, entry)
{
list_remove(&result->entry);
IMFAsyncResult_Release(result->result);
if (result->object)
IUnknown_Release(result->object);
free(result);
}
DeleteCriticalSection(&handler->cs);
free(handler);
}
return refcount;
}
struct create_object_context
{
IUnknown IUnknown_iface;
LONG refcount;
IPropertyStore *props;
IMFByteStream *stream;
WCHAR *url;
DWORD flags;
};
static struct create_object_context *impl_from_IUnknown(IUnknown *iface)
{
return CONTAINING_RECORD(iface, struct create_object_context, IUnknown_iface);
}
static HRESULT WINAPI create_object_context_QueryInterface(IUnknown *iface, REFIID riid, void **obj)
{
TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
if (IsEqualIID(riid, &IID_IUnknown))
{
*obj = iface;
IUnknown_AddRef(iface);
return S_OK;
}
WARN("Unsupported %s.\n", debugstr_guid(riid));
*obj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI create_object_context_AddRef(IUnknown *iface)
{
struct create_object_context *context = impl_from_IUnknown(iface);
ULONG refcount = InterlockedIncrement(&context->refcount);
TRACE("%p, refcount %u.\n", iface, refcount);
return refcount;
}
static ULONG WINAPI create_object_context_Release(IUnknown *iface)
{
struct create_object_context *context = impl_from_IUnknown(iface);
ULONG refcount = InterlockedDecrement(&context->refcount);
TRACE("%p, refcount %u.\n", iface, refcount);
if (!refcount)
{
if (context->props)
IPropertyStore_Release(context->props);
if (context->stream)
IMFByteStream_Release(context->stream);
free(context->url);
free(context);
}
return refcount;
}
static const IUnknownVtbl create_object_context_vtbl =
{
create_object_context_QueryInterface,
create_object_context_AddRef,
create_object_context_Release,
};
static HRESULT WINAPI winegstreamer_stream_handler_BeginCreateObject(IMFByteStreamHandler *iface, IMFByteStream *stream, const WCHAR *url, DWORD flags,
IPropertyStore *props, IUnknown **cancel_cookie, IMFAsyncCallback *callback, IUnknown *state)
{
struct winegstreamer_stream_handler *this = impl_from_IMFByteStreamHandler(iface);
struct create_object_context *context;
IMFAsyncResult *caller, *item;
HRESULT hr;
TRACE("%p, %s, %#x, %p, %p, %p, %p.\n", iface, debugstr_w(url), flags, props, cancel_cookie, callback, state);
if (cancel_cookie)
*cancel_cookie = NULL;
if (FAILED(hr = MFCreateAsyncResult(NULL, callback, state, &caller)))
return hr;
if (!(context = calloc(1, sizeof(*context))))
{
IMFAsyncResult_Release(caller);
return E_OUTOFMEMORY;
}
context->IUnknown_iface.lpVtbl = &create_object_context_vtbl;
context->refcount = 1;
context->props = props;
if (context->props)
IPropertyStore_AddRef(context->props);
context->flags = flags;
context->stream = stream;
if (context->stream)
IMFByteStream_AddRef(context->stream);
if (url)
context->url = wcsdup(url);
if (!context->stream)
{
IMFAsyncResult_Release(caller);
IUnknown_Release(&context->IUnknown_iface);
return E_OUTOFMEMORY;
}
hr = MFCreateAsyncResult(&context->IUnknown_iface, &this->IMFAsyncCallback_iface, (IUnknown *)caller, &item);
IUnknown_Release(&context->IUnknown_iface);
if (SUCCEEDED(hr))
{
if (SUCCEEDED(hr = MFPutWorkItemEx(MFASYNC_CALLBACK_QUEUE_IO, item)))
{
if (cancel_cookie)
{
*cancel_cookie = (IUnknown *)caller;
IUnknown_AddRef(*cancel_cookie);
}
}
IMFAsyncResult_Release(item);
}
IMFAsyncResult_Release(caller);
return hr;
}
static HRESULT WINAPI winegstreamer_stream_handler_EndCreateObject(IMFByteStreamHandler *iface, IMFAsyncResult *result,
MF_OBJECT_TYPE *obj_type, IUnknown **object)
{
struct winegstreamer_stream_handler *this = impl_from_IMFByteStreamHandler(iface);
struct winegstreamer_stream_handler_result *found = NULL, *cur;
HRESULT hr;
TRACE("%p, %p, %p, %p.\n", iface, result, obj_type, object);
EnterCriticalSection(&this->cs);
LIST_FOR_EACH_ENTRY(cur, &this->results, struct winegstreamer_stream_handler_result, entry)
{
if (result == cur->result)
{
list_remove(&cur->entry);
found = cur;
break;
}
}
LeaveCriticalSection(&this->cs);
if (found)
{
*obj_type = found->obj_type;
*object = found->object;
hr = IMFAsyncResult_GetStatus(found->result);
IMFAsyncResult_Release(found->result);
free(found);
}
else
{
*obj_type = MF_OBJECT_INVALID;
*object = NULL;
hr = MF_E_UNEXPECTED;
}
return hr;
}
static HRESULT WINAPI winegstreamer_stream_handler_CancelObjectCreation(IMFByteStreamHandler *iface, IUnknown *cancel_cookie)
{
struct winegstreamer_stream_handler *this = impl_from_IMFByteStreamHandler(iface);
struct winegstreamer_stream_handler_result *found = NULL, *cur;
TRACE("%p, %p.\n", iface, cancel_cookie);
EnterCriticalSection(&this->cs);
LIST_FOR_EACH_ENTRY(cur, &this->results, struct winegstreamer_stream_handler_result, entry)
{
if (cancel_cookie == (IUnknown *)cur->result)
{
list_remove(&cur->entry);
found = cur;
break;
}
}
LeaveCriticalSection(&this->cs);
if (found)
{
IMFAsyncResult_Release(found->result);
if (found->object)
IUnknown_Release(found->object);
free(found);
}
return found ? S_OK : MF_E_UNEXPECTED;
}
static HRESULT WINAPI winegstreamer_stream_handler_GetMaxNumberOfBytesRequiredForResolution(IMFByteStreamHandler *iface, QWORD *bytes)
{
FIXME("stub (%p %p)\n", iface, bytes);
return E_NOTIMPL;
}
static const IMFByteStreamHandlerVtbl winegstreamer_stream_handler_vtbl =
{
winegstreamer_stream_handler_QueryInterface,
winegstreamer_stream_handler_AddRef,
winegstreamer_stream_handler_Release,
winegstreamer_stream_handler_BeginCreateObject,
winegstreamer_stream_handler_EndCreateObject,
winegstreamer_stream_handler_CancelObjectCreation,
winegstreamer_stream_handler_GetMaxNumberOfBytesRequiredForResolution,
};
static HRESULT WINAPI winegstreamer_stream_handler_callback_QueryInterface(IMFAsyncCallback *iface, REFIID riid, void **obj)
{
if (IsEqualIID(riid, &IID_IMFAsyncCallback) ||
IsEqualIID(riid, &IID_IUnknown))
{
*obj = iface;
IMFAsyncCallback_AddRef(iface);
return S_OK;
}
WARN("Unsupported %s.\n", debugstr_guid(riid));
*obj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI winegstreamer_stream_handler_callback_AddRef(IMFAsyncCallback *iface)
{
struct winegstreamer_stream_handler *handler = impl_from_IMFAsyncCallback(iface);
return IMFByteStreamHandler_AddRef(&handler->IMFByteStreamHandler_iface);
}
static ULONG WINAPI winegstreamer_stream_handler_callback_Release(IMFAsyncCallback *iface)
{
struct winegstreamer_stream_handler *handler = impl_from_IMFAsyncCallback(iface);
return IMFByteStreamHandler_Release(&handler->IMFByteStreamHandler_iface);
}
static HRESULT WINAPI winegstreamer_stream_handler_callback_GetParameters(IMFAsyncCallback *iface, DWORD *flags, DWORD *queue)
{
return E_NOTIMPL;
}
static HRESULT winegstreamer_stream_handler_create_object(struct winegstreamer_stream_handler *This, WCHAR *url, IMFByteStream *stream, DWORD flags,
IPropertyStore *props, IUnknown **out_object, MF_OBJECT_TYPE *out_obj_type)
{
TRACE("%p, %s, %p, %u, %p, %p, %p.\n", This, debugstr_w(url), stream, flags, props, out_object, out_obj_type);
if (flags & MF_RESOLUTION_MEDIASOURCE)
{
HRESULT hr;
struct media_source *new_source;
if (FAILED(hr = media_source_constructor(stream, &new_source)))
return hr;
TRACE("->(%p)\n", new_source);
*out_object = (IUnknown*)&new_source->IMFMediaSource_iface;
*out_obj_type = MF_OBJECT_MEDIASOURCE;
return S_OK;
}
else
{
FIXME("flags = %08x\n", flags);
return E_NOTIMPL;
}
}
static HRESULT WINAPI winegstreamer_stream_handler_callback_Invoke(IMFAsyncCallback *iface, IMFAsyncResult *result)
{
struct winegstreamer_stream_handler *handler = impl_from_IMFAsyncCallback(iface);
struct winegstreamer_stream_handler_result *handler_result;
MF_OBJECT_TYPE obj_type = MF_OBJECT_INVALID;
IUnknown *object = NULL, *context_object;
struct create_object_context *context;
IMFAsyncResult *caller;
HRESULT hr;
caller = (IMFAsyncResult *)IMFAsyncResult_GetStateNoAddRef(result);
if (FAILED(hr = IMFAsyncResult_GetObject(result, &context_object)))
{
WARN("Expected context set for callee result.\n");
return hr;
}
context = impl_from_IUnknown(context_object);
hr = winegstreamer_stream_handler_create_object(handler, context->url, context->stream, context->flags, context->props, &object, &obj_type);
if ((handler_result = malloc(sizeof(*handler_result))))
{
handler_result->result = caller;
IMFAsyncResult_AddRef(handler_result->result);
handler_result->obj_type = obj_type;
handler_result->object = object;
EnterCriticalSection(&handler->cs);
list_add_tail(&handler->results, &handler_result->entry);
LeaveCriticalSection(&handler->cs);
}
else
{
if (object)
IUnknown_Release(object);
hr = E_OUTOFMEMORY;
}
IUnknown_Release(&context->IUnknown_iface);
IMFAsyncResult_SetStatus(caller, hr);
MFInvokeCallback(caller);
return S_OK;
}
static const IMFAsyncCallbackVtbl winegstreamer_stream_handler_callback_vtbl =
{
winegstreamer_stream_handler_callback_QueryInterface,
winegstreamer_stream_handler_callback_AddRef,
winegstreamer_stream_handler_callback_Release,
winegstreamer_stream_handler_callback_GetParameters,
winegstreamer_stream_handler_callback_Invoke,
};
HRESULT winegstreamer_stream_handler_create(REFIID riid, void **obj)
{
struct winegstreamer_stream_handler *this;
HRESULT hr;
TRACE("%s, %p.\n", debugstr_guid(riid), obj);
if (!(this = calloc(1, sizeof(*this))))
return E_OUTOFMEMORY;
list_init(&this->results);
InitializeCriticalSection(&this->cs);
this->IMFByteStreamHandler_iface.lpVtbl = &winegstreamer_stream_handler_vtbl;
this->IMFAsyncCallback_iface.lpVtbl = &winegstreamer_stream_handler_callback_vtbl;
this->refcount = 1;
hr = IMFByteStreamHandler_QueryInterface(&this->IMFByteStreamHandler_iface, riid, obj);
IMFByteStreamHandler_Release(&this->IMFByteStreamHandler_iface);
return hr;
}
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