static int
dshow_read_close(AVFormatContext *s)
{
struct dshow_ctx *ctx = s->priv_data;
AVPacketList *pktl;
if (ctx->control) {
IMediaControl_Stop(ctx->control);
IMediaControl_Release(ctx->control);
}
if (ctx->media_event)
IMediaEvent_Release(ctx->media_event);
if (ctx->graph) {
IEnumFilters *fenum;
int r;
r = IGraphBuilder_EnumFilters(ctx->graph, &fenum);
if (r == S_OK) {
IBaseFilter *f;
IEnumFilters_Reset(fenum);
while (IEnumFilters_Next(fenum, 1, &f, NULL) == S_OK) {
if (IGraphBuilder_RemoveFilter(ctx->graph, f) == S_OK)
IEnumFilters_Reset(fenum); /* When a filter is removed,
* the list must be reset. */
IBaseFilter_Release(f);
}
IEnumFilters_Release(fenum);
}
IGraphBuilder_Release(ctx->graph);
}
if (ctx->capture_pin[VideoDevice])
libAVPin_Release(ctx->capture_pin[VideoDevice]);
if (ctx->capture_pin[AudioDevice])
libAVPin_Release(ctx->capture_pin[AudioDevice]);
if (ctx->capture_filter[VideoDevice])
libAVFilter_Release(ctx->capture_filter[VideoDevice]);
if (ctx->capture_filter[AudioDevice])
libAVFilter_Release(ctx->capture_filter[AudioDevice]);
if (ctx->device_pin[VideoDevice])
IPin_Release(ctx->device_pin[VideoDevice]);
if (ctx->device_pin[AudioDevice])
IPin_Release(ctx->device_pin[AudioDevice]);
if (ctx->device_filter[VideoDevice])
IBaseFilter_Release(ctx->device_filter[VideoDevice]);
if (ctx->device_filter[AudioDevice])
IBaseFilter_Release(ctx->device_filter[AudioDevice]);
if (ctx->device_name[0])
av_freep(&ctx->device_name[0]);
if (ctx->device_name[1])
av_freep(&ctx->device_name[1]);
if(ctx->mutex)
CloseHandle(ctx->mutex);
if(ctx->event[0])
CloseHandle(ctx->event[0]);
if(ctx->event[1])
CloseHandle(ctx->event[1]);
pktl = ctx->pktl;
while (pktl) {
AVPacketList *next = pktl->next;
av_free_packet(&pktl->pkt);
av_free(pktl);
pktl = next;
}
CoUninitialize();
return 0;
}
static HRESULT GetSplitter(MediaDetImpl *This)
{
IFileSourceFilter *file;
LPOLESTR name;
AM_MEDIA_TYPE mt;
GUID type[2];
IFilterMapper2 *map;
IEnumMoniker *filters;
IMoniker *mon;
VARIANT var;
GUID clsid;
IBaseFilter *splitter;
IEnumPins *pins;
IPin *source_pin, *splitter_pin;
HRESULT hr;
hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER,
&IID_IFilterMapper2, (void **) &map);
if (FAILED(hr))
return hr;
hr = IBaseFilter_QueryInterface(This->source, &IID_IFileSourceFilter,
(void **) &file);
if (FAILED(hr))
{
IFilterMapper2_Release(map);
return hr;
}
hr = IFileSourceFilter_GetCurFile(file, &name, &mt);
IFileSourceFilter_Release(file);
CoTaskMemFree(name);
if (FAILED(hr))
{
IFilterMapper2_Release(map);
return hr;
}
type[0] = mt.majortype;
type[1] = mt.subtype;
CoTaskMemFree(mt.pbFormat);
hr = IFilterMapper2_EnumMatchingFilters(map, &filters, 0, TRUE,
MERIT_UNLIKELY, FALSE, 1, type,
NULL, NULL, FALSE, TRUE,
0, NULL, NULL, NULL);
IFilterMapper2_Release(map);
if (FAILED(hr))
return hr;
hr = E_NOINTERFACE;
while (IEnumMoniker_Next(filters, 1, &mon, NULL) == S_OK)
{
hr = GetFilterInfo(mon, &clsid, &var);
IMoniker_Release(mon);
if (FAILED(hr))
continue;
hr = CoCreateInstance(&clsid, NULL, CLSCTX_INPROC_SERVER,
&IID_IBaseFilter, (void **) &splitter);
if (FAILED(hr))
{
VariantClear(&var);
goto retry;
}
hr = IGraphBuilder_AddFilter(This->graph, splitter,
V_UNION(&var, bstrVal));
VariantClear(&var);
This->splitter = splitter;
if (FAILED(hr))
goto retry;
hr = IBaseFilter_EnumPins(This->source, &pins);
if (FAILED(hr))
goto retry;
IEnumPins_Next(pins, 1, &source_pin, NULL);
IEnumPins_Release(pins);
hr = IBaseFilter_EnumPins(splitter, &pins);
if (FAILED(hr))
{
IPin_Release(source_pin);
goto retry;
}
IEnumPins_Next(pins, 1, &splitter_pin, NULL);
IEnumPins_Release(pins);
hr = IPin_Connect(source_pin, splitter_pin, NULL);
IPin_Release(source_pin);
IPin_Release(splitter_pin);
if (SUCCEEDED(hr))
break;
retry:
IBaseFilter_Release(splitter);
This->splitter = NULL;
}
IEnumMoniker_Release(filters);
if (FAILED(hr))
return hr;
return S_OK;
}
static void test_media_streams(void)
{
HRESULT hr;
IMediaStream *video_stream = NULL;
IMediaStream *audio_stream = NULL;
IMediaStream *dummy_stream;
IMediaStreamFilter* media_stream_filter = NULL;
if (!create_ammultimediastream())
return;
if (!create_directdraw())
{
release_ammultimediastream();
return;
}
hr = IAMMultiMediaStream_Initialize(pams, STREAMTYPE_READ, 0, NULL);
ok(hr == S_OK, "IAMMultiMediaStream_Initialize returned: %x\n", hr);
/* Retrieve media stream filter */
hr = IAMMultiMediaStream_GetFilter(pams, NULL);
ok(hr == E_POINTER, "IAMMultiMediaStream_GetFilter returned: %x\n", hr);
hr = IAMMultiMediaStream_GetFilter(pams, &media_stream_filter);
ok(hr == S_OK, "IAMMultiMediaStream_GetFilter returned: %x\n", hr);
/* Verify behaviour with invalid purpose id */
hr = IAMMultiMediaStream_GetMediaStream(pams, &IID_IUnknown, &dummy_stream);
ok(hr == MS_E_NOSTREAM, "IAMMultiMediaStream_GetMediaStream returned: %x\n", hr);
hr = IAMMultiMediaStream_AddMediaStream(pams, NULL, &IID_IUnknown, 0, NULL);
ok(hr == MS_E_PURPOSEID, "IAMMultiMediaStream_AddMediaStream returned: %x\n", hr);
/* Verify there is no video media stream */
hr = IAMMultiMediaStream_GetMediaStream(pams, &MSPID_PrimaryVideo, &video_stream);
ok(hr == MS_E_NOSTREAM, "IAMMultiMediaStream_GetMediaStream returned: %x\n", hr);
/* Verify there is no default renderer for video stream */
hr = IAMMultiMediaStream_AddMediaStream(pams, (IUnknown*)pdd7, &MSPID_PrimaryVideo, AMMSF_ADDDEFAULTRENDERER, NULL);
ok(hr == MS_E_PURPOSEID, "IAMMultiMediaStream_AddMediaStream returned: %x\n", hr);
hr = IAMMultiMediaStream_GetMediaStream(pams, &MSPID_PrimaryVideo, &video_stream);
ok(hr == MS_E_NOSTREAM, "IAMMultiMediaStream_GetMediaStream returned: %x\n", hr);
hr = IAMMultiMediaStream_AddMediaStream(pams, NULL, &MSPID_PrimaryVideo, AMMSF_ADDDEFAULTRENDERER, NULL);
ok(hr == MS_E_PURPOSEID, "IAMMultiMediaStream_AddMediaStream returned: %x\n", hr);
hr = IAMMultiMediaStream_GetMediaStream(pams, &MSPID_PrimaryVideo, &video_stream);
ok(hr == MS_E_NOSTREAM, "IAMMultiMediaStream_GetMediaStream returned: %x\n", hr);
/* Verify normal case for video stream */
hr = IAMMultiMediaStream_AddMediaStream(pams, NULL, &MSPID_PrimaryVideo, 0, NULL);
ok(hr == S_OK, "IAMMultiMediaStream_AddMediaStream returned: %x\n", hr);
hr = IAMMultiMediaStream_GetMediaStream(pams, &MSPID_PrimaryVideo, &video_stream);
ok(hr == S_OK, "IAMMultiMediaStream_GetMediaStream returned: %x\n", hr);
/* Verify the video stream has been added to the media stream filter */
if (media_stream_filter)
{
hr = IMediaStreamFilter_GetMediaStream(media_stream_filter, &MSPID_PrimaryVideo, &dummy_stream);
ok(hr == S_OK, "IMediaStreamFilter_GetMediaStream returned: %x\n", hr);
ok(dummy_stream == video_stream, "Got wrong returned pointer %p, expected %p\n", dummy_stream, video_stream);
if (SUCCEEDED(hr))
IMediaStream_Release(dummy_stream);
}
/* Check interfaces and samples for video */
if (video_stream)
{
IAMMediaStream* am_media_stream;
IAudioMediaStream* audio_media_stream;
IDirectDrawMediaStream *ddraw_stream = NULL;
IDirectDrawStreamSample *ddraw_sample = NULL;
hr = IMediaStream_QueryInterface(video_stream, &IID_IAMMediaStream, (LPVOID*)&am_media_stream);
ok(hr == S_OK, "IMediaStream_QueryInterface returned: %x\n", hr);
ok((void*)am_media_stream == (void*)video_stream, "Not same interface, got %p expected %p\n", am_media_stream, video_stream);
if (hr == S_OK)
IAMMediaStream_Release(am_media_stream);
hr = IMediaStream_QueryInterface(video_stream, &IID_IAudioMediaStream, (LPVOID*)&audio_media_stream);
ok(hr == E_NOINTERFACE, "IMediaStream_QueryInterface returned: %x\n", hr);
hr = IMediaStream_QueryInterface(video_stream, &IID_IDirectDrawMediaStream, (LPVOID*)&ddraw_stream);
ok(hr == S_OK, "IMediaStream_QueryInterface returned: %x\n", hr);
if (SUCCEEDED(hr))
{
DDSURFACEDESC current_format, desired_format;
IDirectDrawPalette *palette;
DWORD flags;
hr = IDirectDrawMediaStream_GetFormat(ddraw_stream, ¤t_format, &palette, &desired_format, &flags);
ok(hr == MS_E_NOSTREAM, "IDirectDrawoMediaStream_GetFormat returned: %x\n", hr);
hr = IDirectDrawMediaStream_CreateSample(ddraw_stream, NULL, NULL, 0, &ddraw_sample);
ok(hr == S_OK, "IDirectDrawMediaStream_CreateSample returned: %x\n", hr);
}
if (ddraw_sample)
IDirectDrawStreamSample_Release(ddraw_sample);
if (ddraw_stream)
IDirectDrawMediaStream_Release(ddraw_stream);
}
/* Verify there is no audio media stream */
hr = IAMMultiMediaStream_GetMediaStream(pams, &MSPID_PrimaryAudio, &audio_stream);
ok(hr == MS_E_NOSTREAM, "IAMMultiMediaStream_GetMediaStream returned: %x\n", hr);
/* Verify no stream is created when using the default renderer for audio stream */
hr = IAMMultiMediaStream_AddMediaStream(pams, NULL, &MSPID_PrimaryAudio, AMMSF_ADDDEFAULTRENDERER, NULL);
ok((hr == S_OK) || (hr == VFW_E_NO_AUDIO_HARDWARE), "IAMMultiMediaStream_AddMediaStream returned: %x\n", hr);
if (hr == S_OK)
{
IGraphBuilder* filtergraph = NULL;
IBaseFilter* filter = NULL;
const WCHAR name[] = {'0','0','0','1',0};
CLSID clsid;
hr = IAMMultiMediaStream_GetFilterGraph(pams, &filtergraph);
ok(hr == S_OK, "IAMMultiMediaStream_GetFilterGraph returned: %x\n", hr);
if (hr == S_OK)
{
hr = IGraphBuilder_FindFilterByName(filtergraph, name, &filter);
ok(hr == S_OK, "IGraphBuilder_FindFilterByName returned: %x\n", hr);
}
if (hr == S_OK)
{
hr = IBaseFilter_GetClassID(filter, &clsid);
ok(hr == S_OK, "IGraphBuilder_FindFilterByName returned: %x\n", hr);
}
if (hr == S_OK)
ok(IsEqualGUID(&clsid, &CLSID_DSoundRender), "Got wrong CLSID\n");
if (filter)
IBaseFilter_Release(filter);
if (filtergraph)
IGraphBuilder_Release(filtergraph);
}
hr = IAMMultiMediaStream_GetMediaStream(pams, &MSPID_PrimaryAudio, &audio_stream);
ok(hr == MS_E_NOSTREAM, "IAMMultiMediaStream_GetMediaStream returned: %x\n", hr);
/* Verify a stream is created when no default renderer is used */
hr = IAMMultiMediaStream_AddMediaStream(pams, NULL, &MSPID_PrimaryAudio, 0, NULL);
ok(hr == S_OK, "IAMMultiMediaStream_AddMediaStream returned: %x\n", hr);
hr = IAMMultiMediaStream_GetMediaStream(pams, &MSPID_PrimaryAudio, &audio_stream);
ok(hr == S_OK, "IAMMultiMediaStream_GetMediaStream returned: %x\n", hr);
/* verify the audio stream has been added to the media stream filter */
if (media_stream_filter)
{
hr = IMediaStreamFilter_GetMediaStream(media_stream_filter, &MSPID_PrimaryAudio, &dummy_stream);
ok(hr == S_OK, "IAMMultiMediaStream_GetMediaStream returned: %x\n", hr);
ok(dummy_stream == audio_stream, "Got wrong returned pointer %p, expected %p\n", dummy_stream, audio_stream);
if (SUCCEEDED(hr))
IMediaStream_Release(dummy_stream);
}
/* Check interfaces and samples for audio */
if (audio_stream)
{
IAMMediaStream* am_media_stream;
IDirectDrawMediaStream* ddraw_stream = NULL;
IAudioMediaStream* audio_media_stream = NULL;
IAudioStreamSample *audio_sample = NULL;
hr = IMediaStream_QueryInterface(audio_stream, &IID_IAMMediaStream, (LPVOID*)&am_media_stream);
ok(hr == S_OK, "IMediaStream_QueryInterface returned: %x\n", hr);
ok((void*)am_media_stream == (void*)audio_stream, "Not same interface, got %p expected %p\n", am_media_stream, audio_stream);
if (hr == S_OK)
IAMMediaStream_Release(am_media_stream);
hr = IMediaStream_QueryInterface(audio_stream, &IID_IDirectDrawMediaStream, (LPVOID*)&ddraw_stream);
ok(hr == E_NOINTERFACE, "IMediaStream_QueryInterface returned: %x\n", hr);
hr = IMediaStream_QueryInterface(audio_stream, &IID_IAudioMediaStream, (LPVOID*)&audio_media_stream);
ok(hr == S_OK, "IMediaStream_QueryInterface returned: %x\n", hr);
if (SUCCEEDED(hr))
{
IAudioData* audio_data = NULL;
WAVEFORMATEX format;
hr = CoCreateInstance(&CLSID_AMAudioData, NULL, CLSCTX_INPROC_SERVER, &IID_IAudioData, (void **)&audio_data);
ok(hr == S_OK, "CoCreateInstance returned: %x\n", hr);
hr = IAudioMediaStream_GetFormat(audio_media_stream, NULL);
ok(hr == E_POINTER, "IAudioMediaStream_GetFormat returned: %x\n", hr);
hr = IAudioMediaStream_GetFormat(audio_media_stream, &format);
ok(hr == MS_E_NOSTREAM, "IAudioMediaStream_GetFormat returned: %x\n", hr);
hr = IAudioMediaStream_CreateSample(audio_media_stream, NULL, 0, &audio_sample);
ok(hr == E_POINTER, "IAudioMediaStream_CreateSample returned: %x\n", hr);
hr = IAudioMediaStream_CreateSample(audio_media_stream, audio_data, 0, &audio_sample);
ok(hr == S_OK, "IAudioMediaStream_CreateSample returned: %x\n", hr);
if (audio_data)
IAudioData_Release(audio_data);
if (audio_sample)
IAudioStreamSample_Release(audio_sample);
if (audio_media_stream)
IAudioMediaStream_Release(audio_media_stream);
}
}
if (media_stream_filter)
{
IEnumPins *enum_pins;
hr = IMediaStreamFilter_EnumPins(media_stream_filter, &enum_pins);
ok(hr == S_OK, "IBaseFilter_EnumPins returned: %x\n", hr);
if (hr == S_OK)
{
IPin* pins[3] = { NULL, NULL, NULL };
ULONG nb_pins;
ULONG expected_nb_pins = audio_stream ? 2 : 1;
int i;
hr = IEnumPins_Next(enum_pins, 3, pins, &nb_pins);
ok(SUCCEEDED(hr), "IEnumPins_Next returned: %x\n", hr);
ok(nb_pins == expected_nb_pins, "Number of pins is %u instead of %u\n", nb_pins, expected_nb_pins);
for (i = 0; i < min(nb_pins, expected_nb_pins); i++)
{
IEnumMediaTypes* enum_media_types;
AM_MEDIA_TYPE* media_types[10];
ULONG nb_media_types;
IPin* pin;
PIN_INFO info;
WCHAR id[40];
/* Pin name is "I{guid MSPID_PrimaryVideo or MSPID_PrimaryAudio}" */
id[0] = 'I';
StringFromGUID2(i ? &MSPID_PrimaryAudio : &MSPID_PrimaryVideo, id + 1, 40);
hr = IPin_ConnectedTo(pins[i], &pin);
ok(hr == VFW_E_NOT_CONNECTED, "IPin_ConnectedTo returned: %x\n", hr);
hr = IPin_QueryPinInfo(pins[i], &info);
ok(hr == S_OK, "IPin_QueryPinInfo returned: %x\n", hr);
IBaseFilter_Release(info.pFilter);
ok(info.dir == PINDIR_INPUT, "Pin direction is %u instead of %u\n", info.dir, PINDIR_INPUT);
ok(!lstrcmpW(info.achName, id), "Pin name is %s instead of %s\n", wine_dbgstr_w(info.achName), wine_dbgstr_w(id));
hr = IPin_EnumMediaTypes(pins[i], &enum_media_types);
ok(hr == S_OK, "IPin_EnumMediaTypes returned: %x\n", hr);
hr = IEnumMediaTypes_Next(enum_media_types, sizeof(media_types) / sizeof(AM_MEDIA_TYPE), media_types, &nb_media_types);
ok(SUCCEEDED(hr), "IEnumMediaTypes_Next returned: %x\n", hr);
ok(nb_media_types == 0, "nb_media_types should be 0 instead of %u\n", nb_media_types);
IEnumMediaTypes_Release(enum_media_types);
IPin_Release(pins[i]);
}
IEnumPins_Release(enum_pins);
}
}
/* Test open file with no filename */
hr = IAMMultiMediaStream_OpenFile(pams, NULL, 0);
ok(hr == E_POINTER, "IAMMultiMediaStream_OpenFile returned %x instead of %x\n", hr, E_POINTER);
if (video_stream)
IMediaStream_Release(video_stream);
if (audio_stream)
IMediaStream_Release(audio_stream);
if (media_stream_filter)
IMediaStreamFilter_Release(media_stream_filter);
release_directdraw();
release_ammultimediastream();
}
static HRESULT FGEVENT_KeepEvent(
CFilterGraph* This,
BOOL bKeep,
long lEventCode, LONG_PTR lParam1, LONG_PTR lParam2 )
{
switch ( lEventCode )
{
case EC_COMPLETE:
if ( ++This->m_cCompletes < This->m_cRenders )
return E_FAIL; /* don't tell app */
break;
case EC_USERABORT:
break;
case EC_ERRORABORT:
break;
case EC_TIME:
break;
/*case EC_REPAINT:*/
case EC_STREAM_ERROR_STOPPED:
break;
case EC_STREAM_ERROR_STILLPLAYING:
break;
case EC_ERROR_STILLPLAYING:
break;
case EC_PALETTE_CHANGED:
break;
case EC_VIDEO_SIZE_CHANGED:
break;
case EC_QUALITY_CHANGE:
break;
/*case EC_SHUTTING_DOWN:*/
case EC_CLOCK_CHANGED:
break;
case EC_OPENING_FILE:
break;
case EC_BUFFERING_DATA:
break;
case EC_FULLSCREEN_LOST:
if ( bKeep )
{
if ( ((IBaseFilter*)lParam2) != NULL )
IBaseFilter_AddRef( (IBaseFilter*)lParam2 );
}
else
{
if ( ((IBaseFilter*)lParam2) != NULL )
IBaseFilter_Release( (IBaseFilter*)lParam2 );
}
break;
/*case EC_ACTIVATE:*/
/*case EC_NEED_RESTART:*/
/*case EC_WINDOW_DESTROYED:*/
/*case EC_DISPLAY_CHANGED:*/
/*case EC_STARVATION:*/
/*case EC_OLE_EVENT:*/
/*case EC_NOTIFY_WINDOW:*/
/*case EC_STREAM_CONTROL_STOPPED:*/
/*case EC_STREAM_CONTROL_STARTED:*/
/*case EC_END_OF_SEGMENT:*/
/*case EC_SEGMENT_STARTED:*/
case EC_LENGTH_CHANGED:
break;
default:
if ( lEventCode < EC_USER )
{
FIXME( "unknown system event %08lx\n", lEventCode );
return E_INVALIDARG;
}
TRACE( "user event %08lx\n", lEventCode );
break;
}
return NOERROR;
}
/**
* Cycle through available pins using the device_filter device, of type
* devtype, retrieve the first output pin and return the pointer to the
* object found in *ppin.
* If ppin is NULL, cycle through all pins listing audio/video capabilities.
*/
static int
dshow_cycle_pins(AVFormatContext *avctx, enum dshowDeviceType devtype,
IBaseFilter *device_filter, IPin **ppin)
{
struct dshow_ctx *ctx = avctx->priv_data;
IEnumPins *pins = 0;
IPin *device_pin = NULL;
IPin *pin;
int r;
const GUID *mediatype[2] = { &MEDIATYPE_Video, &MEDIATYPE_Audio };
const char *devtypename = (devtype == VideoDevice) ? "video" : "audio";
int set_format = (devtype == VideoDevice && (ctx->framerate ||
(ctx->requested_width && ctx->requested_height) ||
ctx->pixel_format != AV_PIX_FMT_NONE ||
ctx->video_codec_id != AV_CODEC_ID_RAWVIDEO))
|| (devtype == AudioDevice && (ctx->channels || ctx->sample_rate));
int format_set = 0;
r = IBaseFilter_EnumPins(device_filter, &pins);
if (r != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not enumerate pins.\n");
return AVERROR(EIO);
}
if (!ppin) {
av_log(avctx, AV_LOG_INFO, "DirectShow %s device options\n",
devtypename);
}
while (!device_pin && IEnumPins_Next(pins, 1, &pin, NULL) == S_OK) {
IKsPropertySet *p = NULL;
IEnumMediaTypes *types = NULL;
PIN_INFO info = {0};
AM_MEDIA_TYPE *type;
GUID category;
DWORD r2;
IPin_QueryPinInfo(pin, &info);
IBaseFilter_Release(info.pFilter);
if (info.dir != PINDIR_OUTPUT)
goto next;
if (IPin_QueryInterface(pin, &IID_IKsPropertySet, (void **) &p) != S_OK)
goto next;
if (IKsPropertySet_Get(p, &ROPSETID_Pin, AMPROPERTY_PIN_CATEGORY,
NULL, 0, &category, sizeof(GUID), &r2) != S_OK)
goto next;
if (!IsEqualGUID(&category, &PIN_CATEGORY_CAPTURE))
goto next;
if (!ppin) {
char *buf = dup_wchar_to_utf8(info.achName);
av_log(avctx, AV_LOG_INFO, " Pin \"%s\"\n", buf);
av_free(buf);
dshow_cycle_formats(avctx, devtype, pin, NULL);
goto next;
}
if (set_format) {
dshow_cycle_formats(avctx, devtype, pin, &format_set);
if (!format_set) {
goto next;
}
}
if (devtype == AudioDevice && ctx->audio_buffer_size) {
if (dshow_set_audio_buffer_size(avctx, pin) < 0)
goto next;
}
if (IPin_EnumMediaTypes(pin, &types) != S_OK)
goto next;
IEnumMediaTypes_Reset(types);
while (!device_pin && IEnumMediaTypes_Next(types, 1, &type, NULL) == S_OK) {
if (IsEqualGUID(&type->majortype, mediatype[devtype])) {
device_pin = pin;
goto next;
}
CoTaskMemFree(type);
}
next:
if (types)
IEnumMediaTypes_Release(types);
if (p)
IKsPropertySet_Release(p);
if (device_pin != pin)
IPin_Release(pin);
}
IEnumPins_Release(pins);
if (ppin) {
if (set_format && !format_set) {
av_log(avctx, AV_LOG_ERROR, "Could not set %s options\n", devtypename);
return AVERROR(EIO);
}
if (!device_pin) {
av_log(avctx, AV_LOG_ERROR,
"Could not find output pin from %s capture device.\n", devtypename);
return AVERROR(EIO);
}
*ppin = device_pin;
}
return 0;
}
