gstreamer/sys/mediafoundation/gstmftransform.cpp
Seungha Yang 52a82f5b84 mftransform: Fix deadlock when MFT requests processing output twice
This sequence of event/data flow might happen

1) Initially we have one pending output event
  1-1) Then, process the pending output data
2) No pending input event, then we should wait new pending input event
  2-1) Wakeup by new pending event (but it's pending output event)

In above case, MFT will not report new pending input event
if pending output is not processed.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1325>
2020-06-08 23:46:43 +09:00

1118 lines
27 KiB
C++

/* GStreamer
* Copyright (C) 2020 Seungha Yang <seungha.yang@navercorp.com>
* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include "gstmftransform.h"
#include "gstmfutils.h"
#include <string.h>
#include <wrl.h>
using namespace Microsoft::WRL;
G_BEGIN_DECLS
GST_DEBUG_CATEGORY_EXTERN (gst_mf_transform_debug);
#define GST_CAT_DEFAULT gst_mf_transform_debug
G_END_DECLS
enum
{
PROP_0,
PROP_DEVICE_NAME,
PROP_HARDWARE,
PROP_ENUM_PARAMS,
};
struct _GstMFTransform
{
GstObject object;
gboolean initialized;
GstMFTransformEnumParams enum_params;
gchar *device_name;
gboolean hardware;
IMFActivate *activate;
IMFTransform *transform;
ICodecAPI * codec_api;
IMFMediaEventGenerator *event_gen;
GQueue *output_queue;
DWORD input_id;
DWORD output_id;
gboolean running;
gint pending_need_input;
gint pending_have_output;
GThread *thread;
GMutex lock;
GCond cond;
GMainContext *context;
GMainLoop *loop;
};
#define gst_mf_transform_parent_class parent_class
G_DEFINE_TYPE (GstMFTransform, gst_mf_transform, GST_TYPE_OBJECT);
static void gst_mf_transform_constructed (GObject * object);
static void gst_mf_transform_finalize (GObject * object);
static void gst_mf_transform_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static void gst_mf_transform_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static gpointer gst_mf_transform_thread_func (GstMFTransform * self);
static gboolean gst_mf_transform_close (GstMFTransform * self);
static void
gst_mf_transform_class_init (GstMFTransformClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->constructed = gst_mf_transform_constructed;
gobject_class->finalize = gst_mf_transform_finalize;
gobject_class->get_property = gst_mf_transform_get_property;
gobject_class->set_property = gst_mf_transform_set_property;
g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
g_param_spec_string ("device-name", "device-name",
"Device name", NULL,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_HARDWARE,
g_param_spec_boolean ("hardware", "Hardware",
"Whether hardware device or not", FALSE,
(GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_ENUM_PARAMS,
g_param_spec_pointer ("enum-params", "Enum Params",
"GstMFTransformEnumParams for MFTEnumEx",
(GParamFlags) (G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS)));
}
static void
gst_mf_transform_init (GstMFTransform * self)
{
self->output_queue = g_queue_new ();
g_mutex_init (&self->lock);
g_cond_init (&self->cond);
self->context = g_main_context_new ();
self->loop = g_main_loop_new (self->context, FALSE);
}
static void
gst_mf_transform_constructed (GObject * object)
{
GstMFTransform *self = GST_MF_TRANSFORM (object);
/* Create thread so that ensure COM thread can be MTA thread */
g_mutex_lock (&self->lock);
self->thread = g_thread_new ("GstMFTransform",
(GThreadFunc) gst_mf_transform_thread_func, self);
while (!g_main_loop_is_running (self->loop))
g_cond_wait (&self->cond, &self->lock);
g_mutex_unlock (&self->lock);
G_OBJECT_CLASS (parent_class)->constructed (object);
}
static void
gst_mf_transform_clear_enum_params (GstMFTransformEnumParams *params)
{
g_free (params->input_typeinfo);
params->input_typeinfo = NULL;
g_free (params->output_typeinfo);
params->output_typeinfo = NULL;
}
static void
release_mf_sample (IMFSample * sample)
{
if (sample)
sample->Release ();
}
static void
gst_mf_transform_finalize (GObject * object)
{
GstMFTransform *self = GST_MF_TRANSFORM (object);
g_main_loop_quit (self->loop);
g_thread_join (self->thread);
g_main_loop_unref (self->loop);
g_main_context_unref (self->context);
g_queue_free_full (self->output_queue, (GDestroyNotify) release_mf_sample);
gst_mf_transform_clear_enum_params (&self->enum_params);
g_free (self->device_name);
g_mutex_clear (&self->lock);
g_cond_clear (&self->cond);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_mf_transform_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstMFTransform *self = GST_MF_TRANSFORM (object);
switch (prop_id) {
case PROP_DEVICE_NAME:
g_value_set_string (value, self->device_name);
break;
case PROP_HARDWARE:
g_value_set_boolean (value, self->hardware);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_mf_transform_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstMFTransform *self = GST_MF_TRANSFORM (object);
switch (prop_id) {
case PROP_ENUM_PARAMS:
{
GstMFTransformEnumParams *params;
params = (GstMFTransformEnumParams *) g_value_get_pointer (value);
gst_mf_transform_clear_enum_params (&self->enum_params);
self->enum_params.category = params->category;
self->enum_params.enum_flags = params->enum_flags;
self->enum_params.device_index = params->device_index;
if (params->input_typeinfo) {
self->enum_params.input_typeinfo = g_new0 (MFT_REGISTER_TYPE_INFO, 1);
memcpy (self->enum_params.input_typeinfo, params->input_typeinfo,
sizeof (MFT_REGISTER_TYPE_INFO));
}
if (params->output_typeinfo) {
self->enum_params.output_typeinfo = g_new0 (MFT_REGISTER_TYPE_INFO, 1);
memcpy (self->enum_params.output_typeinfo, params->output_typeinfo,
sizeof (MFT_REGISTER_TYPE_INFO));
}
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_mf_transform_main_loop_running_cb (GstMFTransform * self)
{
GST_TRACE_OBJECT (self, "Main loop running now");
g_mutex_lock (&self->lock);
g_cond_signal (&self->cond);
g_mutex_unlock (&self->lock);
return G_SOURCE_REMOVE;
}
static gpointer
gst_mf_transform_thread_func (GstMFTransform * self)
{
HRESULT hr;
IMFActivate **devices = NULL;
UINT32 num_devices, i;
LPWSTR name = NULL;
GSource *source;
CoInitializeEx (NULL, COINIT_MULTITHREADED);
g_main_context_push_thread_default (self->context);
source = g_idle_source_new ();
g_source_set_callback (source,
(GSourceFunc) gst_mf_transform_main_loop_running_cb, self, NULL);
g_source_attach (source, self->context);
g_source_unref (source);
hr = MFTEnumEx (self->enum_params.category, self->enum_params.enum_flags,
self->enum_params.input_typeinfo, self->enum_params.output_typeinfo,
&devices, &num_devices);
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (self, "MFTEnumEx failure");
goto run_loop;
}
if (num_devices == 0 || self->enum_params.device_index >= num_devices) {
GST_WARNING_OBJECT (self, "No available device at index %d",
self->enum_params.device_index);
for (i = 0; i < num_devices; i++)
devices[i]->Release ();
CoTaskMemFree (devices);
goto run_loop;
}
self->activate = devices[self->enum_params.device_index];
self->activate->AddRef ();
for (i = 0; i < num_devices; i++)
devices[i]->Release ();
hr = self->activate->GetAllocatedString (MFT_FRIENDLY_NAME_Attribute,
&name, NULL);
if (gst_mf_result (hr)) {
self->device_name = g_utf16_to_utf8 ((const gunichar2 *) name,
-1, NULL, NULL, NULL);
GST_INFO_OBJECT (self, "Open device %s", self->device_name);
CoTaskMemFree (name);
}
CoTaskMemFree (devices);
self->hardware = ! !(self->enum_params.enum_flags & MFT_ENUM_FLAG_HARDWARE);
self->initialized = TRUE;
run_loop:
GST_TRACE_OBJECT (self, "Starting main loop");
g_main_loop_run (self->loop);
GST_TRACE_OBJECT (self, "Stopped main loop");
g_main_context_pop_thread_default (self->context);
/* cleanup internal COM object here */
gst_mf_transform_close (self);
if (self->activate) {
self->activate->Release ();
self->activate = NULL;
}
CoUninitialize ();
return NULL;
}
static HRESULT
gst_mf_transform_pop_event (GstMFTransform * self,
gboolean no_wait, MediaEventType * event_type)
{
ComPtr<IMFMediaEvent> event;
MediaEventType type;
HRESULT hr;
DWORD flags = 0;
if (!self->hardware || !self->event_gen)
return MF_E_NO_EVENTS_AVAILABLE;
if (no_wait)
flags = MF_EVENT_FLAG_NO_WAIT;
hr = self->event_gen->GetEvent (flags, event.GetAddressOf ());
if (hr == MF_E_NO_EVENTS_AVAILABLE)
return hr;
else if (!gst_mf_result (hr))
return hr;
hr = event->GetType (&type);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Failed to get event, hr: 0x%x", (guint) hr);
return hr;
}
*event_type = type;
return S_OK;
}
static void
gst_mf_transform_drain_all_events (GstMFTransform * self)
{
HRESULT hr;
if (!self->hardware)
return;
do {
MediaEventType type;
hr = gst_mf_transform_pop_event (self, TRUE, &type);
if (hr == MF_E_NO_EVENTS_AVAILABLE || !gst_mf_result (hr))
return;
switch (type) {
case METransformNeedInput:
self->pending_need_input++;
break;
case METransformHaveOutput:
self->pending_have_output++;
break;
default:
GST_DEBUG_OBJECT (self, "Unhandled event %d", type);
break;
}
} while (SUCCEEDED (hr));
}
static GstFlowReturn
gst_mf_transform_process_output (GstMFTransform * self)
{
DWORD status;
HRESULT hr;
IMFTransform *transform = self->transform;
DWORD stream_id = self->output_id;
MFT_OUTPUT_STREAM_INFO out_stream_info = { 0 };
MFT_OUTPUT_DATA_BUFFER out_data = { 0 };
GstFlowReturn ret = GST_FLOW_OK;
GST_TRACE_OBJECT (self, "Process output");
hr = transform->GetOutputStreamInfo (stream_id, &out_stream_info);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't get output stream info");
return GST_FLOW_ERROR;
}
if ((out_stream_info.dwFlags & (MFT_OUTPUT_STREAM_PROVIDES_SAMPLES |
MFT_OUTPUT_STREAM_CAN_PROVIDE_SAMPLES)) == 0) {
ComPtr<IMFMediaBuffer> buffer;
ComPtr<IMFSample> new_sample;
hr = MFCreateMemoryBuffer (out_stream_info.cbSize,
buffer.GetAddressOf ());
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't create memory buffer");
return GST_FLOW_ERROR;
}
hr = MFCreateSample (new_sample.GetAddressOf ());
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't create sample");
return GST_FLOW_ERROR;
}
hr = new_sample->AddBuffer (buffer.Get ());
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't add buffer to sample");
return GST_FLOW_ERROR;
}
out_data.pSample = new_sample.Detach ();
}
out_data.dwStreamID = stream_id;
hr = transform->ProcessOutput (0, 1, &out_data, &status);
if (self->hardware)
self->pending_have_output--;
if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT) {
GST_LOG_OBJECT (self, "Need more input data");
ret = GST_MF_TRANSFORM_FLOW_NEED_DATA;
} else if (hr == MF_E_TRANSFORM_STREAM_CHANGE) {
ComPtr<IMFMediaType> output_type;
GST_DEBUG_OBJECT (self, "Stream change, set output type again");
hr = transform->GetOutputAvailableType (stream_id,
0, output_type.GetAddressOf ());
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't get available output type");
ret = GST_FLOW_ERROR;
goto done;
}
hr = transform->SetOutputType (stream_id, output_type.Get (), 0);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "Couldn't set output type");
ret = GST_FLOW_ERROR;
goto done;
}
ret = GST_MF_TRANSFORM_FLOW_NEED_DATA;
} else if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (self, "ProcessOutput error");
ret = GST_FLOW_ERROR;
}
done:
if (ret != GST_FLOW_OK) {
if (out_data.pSample)
out_data.pSample->Release();
return ret;
}
if (!out_data.pSample) {
GST_WARNING_OBJECT (self, "No output sample");
return GST_FLOW_OK;
}
g_queue_push_tail (self->output_queue, out_data.pSample);
return GST_FLOW_OK;
}
static gboolean
gst_mf_transform_process_input_sync (GstMFTransform * self,
IMFSample * sample)
{
HRESULT hr;
hr = self->transform->ProcessInput (self->output_id, sample, 0);
if (self->hardware)
self->pending_need_input--;
return gst_mf_result (hr);
}
gboolean
gst_mf_transform_process_input (GstMFTransform * object,
IMFSample * sample)
{
HRESULT hr;
GstFlowReturn ret;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
g_return_val_if_fail (sample != NULL, FALSE);
GST_TRACE_OBJECT (object, "Process input");
if (!object->transform)
return FALSE;
if (!object->running) {
hr = object->transform->ProcessMessage (MFT_MESSAGE_NOTIFY_START_OF_STREAM,
0);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (object, "Cannot post start-of-stream message");
return FALSE;
}
hr = object->transform->ProcessMessage (MFT_MESSAGE_NOTIFY_BEGIN_STREAMING,
0);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (object, "Cannot post begin-stream message");
return FALSE;
}
GST_DEBUG_OBJECT (object, "MFT is running now");
object->running = TRUE;
}
gst_mf_transform_drain_all_events (object);
if (object->hardware) {
process_output:
/* Process pending output first */
while (object->pending_have_output > 0) {
GST_TRACE_OBJECT (object,
"Pending have output %d", object->pending_have_output);
ret = gst_mf_transform_process_output (object);
if (ret != GST_FLOW_OK) {
if (ret == GST_VIDEO_ENCODER_FLOW_NEED_DATA) {
GST_TRACE_OBJECT (object, "Need more data");
ret = GST_FLOW_OK;
break;
} else {
GST_WARNING_OBJECT (object,
"Couldn't process output, ret %s", gst_flow_get_name (ret));
return FALSE;
}
}
}
while (object->pending_need_input == 0) {
MediaEventType type;
HRESULT hr;
GST_TRACE_OBJECT (object, "No pending need input, waiting event");
hr = gst_mf_transform_pop_event (object, FALSE, &type);
if (hr != MF_E_NO_EVENTS_AVAILABLE && !gst_mf_result (hr)) {
GST_DEBUG_OBJECT (object, "failed to pop event, hr: 0x%x", (guint) hr);
return FALSE;
}
GST_TRACE_OBJECT (object, "Got event type %d", (gint) type);
switch (type) {
case METransformNeedInput:
object->pending_need_input++;
break;
case METransformHaveOutput:
object->pending_have_output++;
break;
default:
GST_DEBUG_OBJECT (object, "Unhandled event %d", type);
break;
}
/* If MFT doesn't want to handle input yet but we have pending output,
* process output again */
if (object->pending_have_output > 0 && object->pending_need_input == 0) {
GST_TRACE_OBJECT (object,
"Only have pending output, process output again");
goto process_output;
}
}
}
return gst_mf_transform_process_input_sync (object, sample);
}
GstFlowReturn
gst_mf_transform_get_output (GstMFTransform * object,
IMFSample ** sample)
{
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), GST_FLOW_ERROR);
g_return_val_if_fail (sample != NULL, GST_FLOW_ERROR);
if (!object->transform)
return GST_FLOW_ERROR;
gst_mf_transform_drain_all_events (object);
if (!object->hardware || object->pending_have_output)
gst_mf_transform_process_output (object);
if (g_queue_is_empty (object->output_queue))
return GST_MF_TRANSFORM_FLOW_NEED_DATA;
*sample = (IMFSample *) g_queue_pop_head (object->output_queue);
return GST_FLOW_OK;
}
gboolean
gst_mf_transform_flush (GstMFTransform * object)
{
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
if (object->transform) {
if (object->running)
object->transform->ProcessMessage (MFT_MESSAGE_COMMAND_FLUSH, 0);
object->pending_have_output = 0;
object->pending_need_input = 0;
}
object->running = FALSE;
while (!g_queue_is_empty (object->output_queue)) {
IMFSample *sample = (IMFSample *) g_queue_pop_head (object->output_queue);
sample->Release ();
}
return TRUE;
}
gboolean
gst_mf_transform_drain (GstMFTransform * object)
{
GstFlowReturn ret;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
if (!object->transform || !object->running)
return TRUE;
object->running = FALSE;
object->transform->ProcessMessage (MFT_MESSAGE_COMMAND_DRAIN, 0);
if (object->hardware) {
MediaEventType type;
HRESULT hr;
do {
hr = gst_mf_transform_pop_event (object, FALSE, &type);
if (hr != MF_E_NO_EVENTS_AVAILABLE && FAILED (hr)) {
GST_DEBUG_OBJECT (object, "failed to pop event, hr: 0x%x", (guint) hr);
break;
}
switch (type) {
case METransformNeedInput:
GST_DEBUG_OBJECT (object, "Ignore need input during finish");
break;
case METransformHaveOutput:
object->pending_have_output++;
gst_mf_transform_process_output (object);
break;
case METransformDrainComplete:
GST_DEBUG_OBJECT (object, "Drain complete");
return TRUE;
default:
GST_DEBUG_OBJECT (object, "Unhandled event %d", type);
break;
}
} while (SUCCEEDED (hr));
/* and drain all the other events if any */
gst_mf_transform_drain_all_events (object);
object->pending_have_output = 0;
object->pending_need_input = 0;
} else {
do {
ret = gst_mf_transform_process_output (object);
} while (ret == GST_FLOW_OK);
}
return TRUE;
}
typedef struct
{
GstMFTransform *object;
gboolean invoked;
gboolean ret;
} GstMFTransformOpenData;
static gboolean
gst_mf_transform_open_internal (GstMFTransformOpenData * data)
{
GstMFTransform *object = data->object;
HRESULT hr;
data->ret = FALSE;
gst_mf_transform_close (object);
hr = object->activate->ActivateObject (IID_IMFTransform,
(void **) &object->transform);
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (object, "Couldn't open MFT");
goto done;
}
if (object->hardware) {
ComPtr<IMFAttributes> attr;
hr = object->transform->GetAttributes (attr.GetAddressOf ());
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (object, "Couldn't get attribute object");
goto done;
}
hr = attr->SetUINT32 (MF_TRANSFORM_ASYNC_UNLOCK, TRUE);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (object, "MF_TRANSFORM_ASYNC_UNLOCK error");
goto done;
}
hr = object->transform->QueryInterface (IID_IMFMediaEventGenerator,
(void **) &object->event_gen);
if (!gst_mf_result (hr)) {
GST_ERROR_OBJECT (object, "IMFMediaEventGenerator unavailable");
goto done;
}
}
hr = object->transform->GetStreamIDs (1, &object->input_id, 1,
&object->output_id);
if (hr == E_NOTIMPL) {
object->input_id = 0;
object->output_id = 0;
}
hr = object->transform->QueryInterface (IID_ICodecAPI,
(void **) &object->codec_api);
if (!gst_mf_result (hr)) {
GST_WARNING_OBJECT (object, "ICodecAPI is unavailable");
}
data->ret = TRUE;
done:
if (!data->ret)
gst_mf_transform_close (object);
g_mutex_lock (&object->lock);
data->invoked = TRUE;
g_cond_broadcast (&object->cond);
g_mutex_unlock (&object->lock);
return G_SOURCE_REMOVE;
}
gboolean
gst_mf_transform_open (GstMFTransform * object)
{
GstMFTransformOpenData data;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
g_return_val_if_fail (object->activate != NULL, FALSE);
data.object = object;
data.invoked = FALSE;
data.ret = FALSE;
g_main_context_invoke (object->context,
(GSourceFunc) gst_mf_transform_open_internal, &data);
g_mutex_lock (&object->lock);
while (!data.invoked)
g_cond_wait (&object->cond, &object->lock);
g_mutex_unlock (&object->lock);
return data.ret;
}
static gboolean
gst_mf_transform_close (GstMFTransform * object)
{
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
gst_mf_transform_flush (object);
if (object->event_gen) {
object->event_gen->Release ();
object->event_gen = NULL;
}
if (object->codec_api) {
object->codec_api->Release ();
object->codec_api = NULL;
}
if (object->transform) {
object->transform->Release ();
object->transform = NULL;
}
return TRUE;
}
IMFActivate *
gst_mf_transform_get_activate_handle (GstMFTransform * object)
{
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), NULL);
return object->activate;
}
IMFTransform *
gst_mf_transform_get_transform_handle (GstMFTransform * object)
{
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), NULL);
if (!object->transform) {
GST_WARNING_OBJECT (object,
"IMFTransform is not configured, open MFT first");
return NULL;
}
return object->transform;
}
ICodecAPI *
gst_mf_transform_get_codec_api_handle (GstMFTransform * object)
{
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), NULL);
if (!object->codec_api) {
GST_WARNING_OBJECT (object,
"ICodecAPI is not configured, open MFT first");
return NULL;
}
return object->codec_api;
}
gboolean
gst_mf_transform_get_input_available_types (GstMFTransform * object,
GList ** input_types)
{
IMFTransform *transform;
HRESULT hr;
DWORD index = 0;
GList *list = NULL;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
g_return_val_if_fail (input_types != NULL, FALSE);
transform = object->transform;
if (!transform) {
GST_ERROR_OBJECT (object, "Should open first");
return FALSE;
}
do {
IMFMediaType *type = NULL;
hr = transform->GetInputAvailableType (object->input_id, index, &type);
if (SUCCEEDED (hr))
list = g_list_append (list, type);
index++;
} while (SUCCEEDED (hr));
*input_types = list;
return !!list;
}
gboolean
gst_mf_transform_get_output_available_types (GstMFTransform * object,
GList ** output_types)
{
IMFTransform *transform;
HRESULT hr;
DWORD index = 0;
GList *list = NULL;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
g_return_val_if_fail (output_types != NULL, FALSE);
transform = object->transform;
if (!transform) {
GST_ERROR_OBJECT (object, "Should open first");
return FALSE;
}
do {
IMFMediaType *type;
hr = transform->GetOutputAvailableType (object->input_id, index, &type);
if (SUCCEEDED (hr))
list = g_list_append (list, type);
index++;
} while (SUCCEEDED (hr));
*output_types = list;
return !!list;
}
gboolean
gst_mf_transform_set_input_type (GstMFTransform * object,
IMFMediaType * input_type)
{
IMFTransform *transform;
HRESULT hr;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
transform = object->transform;
if (!transform) {
GST_ERROR_OBJECT (object, "Should open first");
return FALSE;
}
hr = transform->SetInputType (object->input_id, input_type, 0);
if (!gst_mf_result (hr))
return FALSE;
return TRUE;
}
gboolean
gst_mf_transform_set_output_type (GstMFTransform * object,
IMFMediaType * output_type)
{
IMFTransform *transform;
HRESULT hr;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
transform = object->transform;
if (!transform) {
GST_ERROR_OBJECT (object, "Should open first");
return FALSE;
}
hr = transform->SetOutputType (object->output_id, output_type, 0);
if (!gst_mf_result (hr)) {
return FALSE;
}
return TRUE;
}
gboolean
gst_mf_transform_get_input_current_type (GstMFTransform * object,
IMFMediaType ** input_type)
{
IMFTransform *transform;
HRESULT hr;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
g_return_val_if_fail (input_type != NULL, FALSE);
transform = object->transform;
if (!transform) {
GST_ERROR_OBJECT (object, "Should open first");
return FALSE;
}
hr = transform->GetInputCurrentType (object->input_id, input_type);
if (!gst_mf_result (hr)) {
return FALSE;
}
return TRUE;
}
gboolean
gst_mf_transform_get_output_current_type (GstMFTransform * object,
IMFMediaType ** output_type)
{
IMFTransform *transform;
HRESULT hr;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
g_return_val_if_fail (output_type != NULL, FALSE);
transform = object->transform;
if (!transform) {
GST_ERROR_OBJECT (object, "Should open first");
return FALSE;
}
hr = transform->GetOutputCurrentType (object->output_id, output_type);
if (!gst_mf_result (hr)) {
return FALSE;
}
return TRUE;
}
GstMFTransform *
gst_mf_transform_new (GstMFTransformEnumParams * params)
{
GstMFTransform *self;
g_return_val_if_fail (params != NULL, NULL);
self = (GstMFTransform *) g_object_new (GST_TYPE_MF_TRANSFORM_OBJECT,
"enum-params", params, NULL);
if (!self->initialized) {
gst_object_unref (self);
return NULL;
}
gst_object_ref_sink (self);
return self;
}
gboolean
gst_mf_transform_set_codec_api_uint32 (GstMFTransform * object,
const GUID * api, guint32 value)
{
HRESULT hr;
VARIANT var;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
g_return_val_if_fail (api != NULL, FALSE);
if (!object->codec_api) {
GST_WARNING_OBJECT (object, "codec api unavailable");
return FALSE;
}
VariantInit (&var);
var.vt = VT_UI4;
var.ulVal = value;
hr = object->codec_api->SetValue (api, &var);
VariantClear (&var);
return gst_mf_result (hr);
}
gboolean
gst_mf_transform_set_codec_api_uint64 (GstMFTransform * object,
const GUID * api, guint64 value)
{
HRESULT hr;
VARIANT var;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
g_return_val_if_fail (api != NULL, FALSE);
if (!object->codec_api) {
GST_WARNING_OBJECT (object, "codec api unavailable");
return FALSE;
}
VariantInit (&var);
var.vt = VT_UI8;
var.ullVal = value;
hr = object->codec_api->SetValue (api, &var);
VariantClear (&var);
return gst_mf_result (hr);
}
gboolean
gst_mf_transform_set_codec_api_boolean (GstMFTransform * object,
const GUID * api, gboolean value)
{
HRESULT hr;
VARIANT var;
g_return_val_if_fail (GST_IS_MF_TRANSFORM (object), FALSE);
g_return_val_if_fail (api != NULL, FALSE);
if (!object->codec_api) {
GST_WARNING_OBJECT (object, "codec api unavailable");
return FALSE;
}
VariantInit (&var);
var.vt = VT_BOOL;
var.boolVal = value ? VARIANT_TRUE : VARIANT_FALSE;
hr = object->codec_api->SetValue (api, &var);
VariantClear (&var);
return gst_mf_result (hr);
}