[PATCH 3/6] amstream: Implement AMAudioStream::EndOfStream.

Zebediah Figura zfigura at codeweavers.com
Tue Apr 21 16:32:07 CDT 2020


On 4/21/20 2:35 PM, Anton Baskanov wrote:
> On 4/20/20 5:12 AM, you wrote:
>> On 4/18/20 9:34 AM, Anton Baskanov wrote:
>>> Signed-off-by: Anton Baskanov <baskanov at gmail.com>
>>> ---
>>>
>>>   dlls/amstream/audiostream.c    | 66 ++++++++++++++++++++++-
>>>   dlls/amstream/tests/amstream.c | 99 ++++++++++++++++++++++++++++++++--
>>>   2 files changed, 159 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/dlls/amstream/audiostream.c b/dlls/amstream/audiostream.c
>>> index 26d615ebf4..81cd2975c8 100644
>>> --- a/dlls/amstream/audiostream.c
>>> +++ b/dlls/amstream/audiostream.c
>>> @@ -166,6 +166,17 @@ static HRESULT
>>> audiostreamsample_create(IAudioMediaStream *parent, IAudioData *a>
>>>       return S_OK;
>>>   
>>>   }
>>>
>>> +enum queued_event_type
>>> +{
>>> +    QET_END_OF_STREAM
>>> +};
>>> +
>>> +struct queued_event
>>> +{
>>> +    struct list entry;
>>> +    enum queued_event_type type;
>>> +};
>>> +
>>>
>>>   struct audio_stream
>>>   {
>>>   
>>>       IAMMediaStream IAMMediaStream_iface;
>>>
>>> @@ -185,8 +196,27 @@ struct audio_stream
>>>
>>>       AM_MEDIA_TYPE mt;
>>>       WAVEFORMATEX format;
>>>       FILTER_STATE state;
>>>
>>> +    BOOL eos;
>>> +    struct list event_queue;
>>>
>>>   };
>>>
>>> +static void remove_queued_event(struct queued_event *event)
>>> +{
>>> +    list_remove(&event->entry);
>>> +    HeapFree(GetProcessHeap(), 0, event);
>>> +}
>>> +
>>> +static void flush_event_queue(struct audio_stream *stream)
>>> +{
>>> +    while (!list_empty(&stream->event_queue))
>>> +    {
>>> +        struct queued_event *event =
>>> +            LIST_ENTRY(list_head(&stream->event_queue), struct
>>> queued_event, entry); +
>>> +        remove_queued_event(event);
>>> +    }
>>> +}
>>> +
>>>
>>>   static inline struct audio_stream
>>>   *impl_from_IAMMediaStream(IAMMediaStream *iface) {
>>>   
>>>       return CONTAINING_RECORD(iface, struct audio_stream,
>>>       IAMMediaStream_iface);
>>>
>>> @@ -347,6 +377,11 @@ static HRESULT WINAPI
>>> audio_IAMMediaStream_SetState(IAMMediaStream *iface, FILTE>
>>>       EnterCriticalSection(&This->cs);
>>>
>>> +    if (State_Stopped == state)
>>> +        flush_event_queue(This);
>>> +    if (State_Stopped == This->state)
>>> +        This->eos = FALSE;
>>
>> This works, but it feels a little clearer to me to have
>>
>> if (state == State_Stopped)
>> {
>>      flush_event_queue(This);
>>      This->eos = FALSE;
>> }
>>
> 
> This change results in test failures, since the native implementation clears
> the EOS state on stopped->paused transition.

Oh, I misread / assumed that EndOfStream() would fail if the filter was 
stopped (which, granted, at least some quartz filters do). Never mind 
that, then.

> 
>>>       This->state = state;
>>>       
>>>       LeaveCriticalSection(&This->cs);
>>>
>>> @@ -919,8 +954,34 @@ static HRESULT WINAPI
>>> audio_sink_QueryInternalConnections(IPin *iface, IPin **pi>
>>>   static HRESULT WINAPI audio_sink_EndOfStream(IPin *iface)
>>>   {
>>>
>>> -    FIXME("iface %p, stub!\n", iface);
>>> -    return E_NOTIMPL;
>>> +    struct audio_stream *stream = impl_from_IPin(iface);
>>> +    struct queued_event *event;
>>> +
>>> +    TRACE("(%p/%p)->()\n", iface, stream);
>>> +
>>> +    EnterCriticalSection(&stream->cs);
>>> +
>>> +    if (stream->eos)
>>> +    {
>>> +        LeaveCriticalSection(&stream->cs);
>>> +        return E_FAIL;
>>> +    }
>>> +
>>> +    event = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
>>> sizeof(*event));
>>
>> amstream is compiled with msvcrt, so this can be calloc().
>>
> 
>>> +    if (!event)
>>> +    {
>>> +        LeaveCriticalSection(&stream->cs);
>>> +        return E_OUTOFMEMORY;
>>> +    }
>>> +
>>> +    event->type = QET_END_OF_STREAM;
>>> +    list_add_tail(&stream->event_queue, &event->entry);
>>> +
>>> +    stream->eos = TRUE;
>>> +
>>> +    LeaveCriticalSection(&stream->cs);
>>> +
>>> +    return S_OK;
>>>
>>>   }
>>>   
>>>   static HRESULT WINAPI audio_sink_BeginFlush(IPin *iface)
>>>
>>> @@ -1083,6 +1144,7 @@ HRESULT audio_stream_create(IMultiMediaStream
>>> *parent, const MSPID *purpose_id,>
>>>       object->parent = parent;
>>>       object->purpose_id = *purpose_id;
>>>       object->stream_type = stream_type;
>>>
>>> +    list_init(&object->event_queue);
>>>
>>>       *media_stream = &object->IAMMediaStream_iface;
>>>
>>> diff --git a/dlls/amstream/tests/amstream.c
>>> b/dlls/amstream/tests/amstream.c index 472c6558fc..2ac492bc3c 100644
>>> --- a/dlls/amstream/tests/amstream.c
>>> +++ b/dlls/amstream/tests/amstream.c
>>> @@ -2381,10 +2381,21 @@ static HRESULT testsource_query_accept(struct
>>> strmbase_pin *iface, const AM_MEDI>
>>>       return S_OK;
>>>   
>>>   }
>>>
>>> -static HRESULT WINAPI testsource_DecideAllocator(struct strmbase_source
>>> *iface, -        IMemInputPin *peer, IMemAllocator **allocator)
>>> +static HRESULT WINAPI testsource_decide_buffer_size(struct
>>> strmbase_source *iface, +        IMemAllocator *alloc,
>>> ALLOCATOR_PROPERTIES *requested)
>>>
>>>   {
>>>
>>> -    return S_OK;
>>> +    ALLOCATOR_PROPERTIES actual;
>>> +
>>> +    if (!requested->cbAlign)
>>> +        requested->cbAlign = 1;
>>> +
>>> +    if (requested->cbBuffer < 4096)
>>> +        requested->cbBuffer = 4096;
>>> +
>>> +    if (!requested->cBuffers)
>>> +        requested->cBuffers = 2;
>>> +
>>> +    return IMemAllocator_SetProperties(alloc, requested, &actual);
>>>
>>>   }
>>>   
>>>   static const struct strmbase_source_ops testsource_ops =
>>>
>>> @@ -2392,7 +2403,8 @@ static const struct strmbase_source_ops
>>> testsource_ops =>
>>>       .base.pin_query_accept = testsource_query_accept,
>>>       .base.pin_get_media_type = strmbase_pin_get_media_type,
>>>       .pfnAttemptConnection = BaseOutputPinImpl_AttemptConnection,
>>>
>>> -    .pfnDecideAllocator = testsource_DecideAllocator,
>>> +    .pfnDecideBufferSize = testsource_decide_buffer_size,
>>> +    .pfnDecideAllocator = BaseOutputPinImpl_DecideAllocator,
>>>
>>>   };
>>>   
>>>   static void testfilter_init(struct testfilter *filter)
>>>
>>> @@ -2814,6 +2826,84 @@ static void test_audiostream_set_state(void)
>>>
>>>       ok(!ref, "Got outstanding refcount %d.\n", ref);
>>>   
>>>   }
>>>
>>> +void test_audiostream_end_of_stream(void)
>>> +{
>>> +    static const WAVEFORMATEX format =
>>> +    {
>>> +        .wFormatTag = WAVE_FORMAT_PCM,
>>> +        .nChannels = 1,
>>> +        .nSamplesPerSec = 11025,
>>> +        .wBitsPerSample = 16,
>>> +        .nBlockAlign = 2,
>>> +        .nAvgBytesPerSec = 2 * 11025,
>>> +    };
>>> +
>>> +    const AM_MEDIA_TYPE mt =
>>> +    {
>>> +        .majortype = MEDIATYPE_Audio,
>>> +        .subtype = MEDIASUBTYPE_PCM,
>>> +        .formattype = FORMAT_WaveFormatEx,
>>> +        .cbFormat = sizeof(WAVEFORMATEX),
>>> +        .pbFormat = (BYTE *)&format,
>>> +    };
>>> +
>>> +    IAMMultiMediaStream *mmstream = create_ammultimediastream();
>>> +    struct testfilter source;
>>> +    IGraphBuilder *graph;
>>> +    IMediaStream *stream;
>>> +    HRESULT hr;
>>> +    ULONG ref;
>>> +    IPin *pin;
>>> +
>>> +    hr = IAMMultiMediaStream_Initialize(mmstream, STREAMTYPE_READ, 0,
>>> NULL); +    ok(hr == S_OK, "Got hr %#x.\n", hr);
>>> +    hr = IAMMultiMediaStream_AddMediaStream(mmstream, NULL,
>>> &MSPID_PrimaryAudio, 0, &stream); +    ok(hr == S_OK, "Got hr %#x.\n",
>>> hr);
>>> +    hr = IMediaStream_QueryInterface(stream, &IID_IPin, (void **)&pin);
>>> +    ok(hr == S_OK, "Got hr %#x.\n", hr);
>>> +    hr = IAMMultiMediaStream_GetFilterGraph(mmstream, &graph);
>>> +    ok(hr == S_OK, "Got hr %#x.\n", hr);
>>> +    ok(graph != NULL, "Expected non-null graph\n");
>>> +    testfilter_init(&source);
>>> +    hr = IGraphBuilder_AddFilter(graph, &source.filter.IBaseFilter_iface,
>>> NULL); +    ok(hr == S_OK, "Got hr %#x.\n", hr);
>>> +
>>> +    hr = IGraphBuilder_ConnectDirect(graph,
>>> &source.source.pin.IPin_iface, pin, &mt); +    ok(hr == S_OK, "Got hr
>>> %#x.\n", hr);
>>> +
>>> +    hr = IPin_EndOfStream(pin);
>>> +    ok(hr == S_OK, "Got hr %#x.\n", hr);
>>> +
>>> +    hr = IPin_EndOfStream(pin);
>>> +    ok(hr == E_FAIL, "Got hr %#x.\n", hr);
>>> +
>>> +    hr = IAMMultiMediaStream_SetState(mmstream, STREAMSTATE_RUN);
>>> +    ok(hr == S_OK, "Got hr %#x.\n", hr);
>>> +
>>> +    hr = IPin_EndOfStream(pin);
>>> +    ok(hr == S_OK, "Got hr %#x.\n", hr);
>>> +
>>> +    hr = IPin_EndOfStream(pin);
>>> +    ok(hr == E_FAIL, "Got hr %#x.\n", hr);
>>> +
>>> +    hr = IAMMultiMediaStream_SetState(mmstream, STREAMSTATE_STOP);
>>> +    ok(hr == S_OK, "Got hr %#x.\n", hr);
>>> +
>>> +    hr = IPin_EndOfStream(pin);
>>> +    ok(hr == E_FAIL, "Got hr %#x.\n", hr);
>>> +
>>> +    IGraphBuilder_Disconnect(graph, pin);
>>> +    IGraphBuilder_Disconnect(graph, &source.source.pin.IPin_iface);
>>> +
>>> +    ref = IAMMultiMediaStream_Release(mmstream);
>>> +    ok(!ref, "Got outstanding refcount %d.\n", ref);
>>> +    ref = IGraphBuilder_Release(graph);
>>> +    ok(!ref, "Got outstanding refcount %d.\n", ref);
>>> +    IPin_Release(pin);
>>> +    ref = IMediaStream_Release(stream);
>>> +    ok(!ref, "Got outstanding refcount %d.\n", ref);
>>> +}
>>> +
>>>
>>>   void test_mediastreamfilter_get_state(void)
>>>   {
>>>   
>>>       IAMMultiMediaStream *mmstream = create_ammultimediastream();
>>>
>>> @@ -2986,6 +3076,7 @@ START_TEST(amstream)
>>>
>>>       test_audiostream_set_format();
>>>       test_audiostream_receive_connection();
>>>       test_audiostream_set_state();
>>>
>>> +    test_audiostream_end_of_stream();
>>>
>>>       test_mediastreamfilter_get_state();
>>>       test_mediastreamfilter_stop_pause_run();
> 
> 
> 




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