[PATCH 2/4] qcap/tests: Test effect of setting stream format on media type enumeration.

Zebediah Figura z.figura12 at gmail.com
Fri Aug 28 11:34:09 CDT 2020


On 8/28/20 10:52 AM, Jeff Smith wrote:
> Signed-off-by: Jeff Smith <whydoubt at gmail.com>
> ---
>  dlls/qcap/tests/videocapture.c | 137 ++++++++++++++++++++++++++++++---
>  1 file changed, 127 insertions(+), 10 deletions(-)
> 
> diff --git a/dlls/qcap/tests/videocapture.c b/dlls/qcap/tests/videocapture.c
> index 326601a398..c0fd30aee3 100644
> --- a/dlls/qcap/tests/videocapture.c
> +++ b/dlls/qcap/tests/videocapture.c
> @@ -23,6 +23,12 @@
>  #include "wine/test.h"
>  #include "wine/strmbase.h"
>  
> +static BOOL compare_media_types(const AM_MEDIA_TYPE *a, const AM_MEDIA_TYPE *b)
> +{
> +    return !memcmp(a, b, offsetof(AM_MEDIA_TYPE, pbFormat))
> +            && !memcmp(a->pbFormat, b->pbFormat, a->cbFormat);
> +}
> +
>  #define check_interface(a, b, c) check_interface_(__LINE__, a, b, c)
>  static void check_interface_(unsigned int line, void *iface_ptr, REFIID iid, BOOL supported)
>  {
> @@ -78,11 +84,13 @@ static void test_media_types(IPin *pin)
>  static void test_stream_config(IPin *pin)
>  {
>      VIDEOINFOHEADER *video_info, *video_info2;
> -    AM_MEDIA_TYPE *format, *format2;
> +    AM_MEDIA_TYPE *format, *format2, *formats[2];
>      VIDEO_STREAM_CONFIG_CAPS vscc;
>      IAMStreamConfig *stream_config;
> +    IEnumMediaTypes *enum_media_types;
>      LONG depth, compression;
> -    LONG count, size;
> +    LONG count, size, i;
> +    ULONG fetched;
>      HRESULT hr;
>  
>      hr = IPin_QueryInterface(pin, &IID_IAMStreamConfig, (void **)&stream_config);
> @@ -93,9 +101,27 @@ static void test_stream_config(IPin *pin)
>      ok(IsEqualGUID(&format->majortype, &MEDIATYPE_Video), "Got wrong majortype: %s.\n",
>              debugstr_guid(&format->majortype));
>  
> +    /* Before setting format, multiple media types are enumerated. */
> +    IPin_EnumMediaTypes(pin, &enum_media_types);
> +    hr = IEnumMediaTypes_Next(enum_media_types, 2, formats, &fetched);
> +    ok(hr == S_OK, "Got hr %#x.\n", hr);
> +    ok(fetched == 2, "Fetched %u.\n", fetched);
> +    DeleteMediaType(formats[0]);
> +    DeleteMediaType(formats[1]);
> +    IEnumMediaTypes_Release(enum_media_types);
> +

I'm not exactly sure we need to test this, and I'm a little nervous to
given how hardware-dependent behaviour can be.

>      hr = IAMStreamConfig_SetFormat(stream_config, format);
>      ok(hr == S_OK, "Got hr %#x.\n", hr);
>  
> +    /* After setting format, a single media type is enumerated.
> +     * This persists until the filter is released. */
> +    IPin_EnumMediaTypes(pin, &enum_media_types);
> +    hr = IEnumMediaTypes_Next(enum_media_types, 2, formats, &fetched);
> +    todo_wine ok(hr == S_FALSE, "Got hr %#x.\n", hr);
> +    todo_wine ok(fetched == 1, "Fetched %u.\n", fetched);
> +    DeleteMediaType(formats[0]);
> +    IEnumMediaTypes_Release(enum_media_types);
> +
>      format->majortype = MEDIATYPE_Audio;
>      hr = IAMStreamConfig_SetFormat(stream_config, format);
>      ok(hr == E_FAIL, "Got hr %#x.\n", hr);
> @@ -162,14 +188,38 @@ static void test_stream_config(IPin *pin)
>      hr = IAMStreamConfig_GetStreamCaps(stream_config, 100000, &format, (BYTE *)&vscc);
>      ok(hr == S_FALSE, "Got hr %#x.\n", hr);
>  
> -    hr = IAMStreamConfig_GetStreamCaps(stream_config, 0, &format, (BYTE *)&vscc);
> -    ok(hr == S_OK, "Got hr %#x.\n", hr);
> -    ok(IsEqualGUID(&format->majortype, &MEDIATYPE_Video), "Got wrong majortype: %s.\n",
> -            debugstr_guid(&MEDIATYPE_Video));
> -    ok(IsEqualGUID(&vscc.guid, &FORMAT_VideoInfo)
> -            || IsEqualGUID(&vscc.guid, &FORMAT_VideoInfo2), "Got wrong guid: %s.\n",
> -            debugstr_guid(&vscc.guid));
> -    FreeMediaType(format);
> +    for (i = 0; i < count; i++)
> +    {
> +        hr = IAMStreamConfig_GetStreamCaps(stream_config, i, &format, (BYTE *)&vscc);
> +        ok(hr == S_OK, "Got hr %#x.\n", hr);
> +        ok(IsEqualGUID(&format->majortype, &MEDIATYPE_Video), "Got wrong majortype: %s.\n",
> +                debugstr_guid(&MEDIATYPE_Video));
> +        ok(IsEqualGUID(&vscc.guid, &FORMAT_VideoInfo)
> +                || IsEqualGUID(&vscc.guid, &FORMAT_VideoInfo2), "Got wrong guid: %s.\n",
> +                debugstr_guid(&vscc.guid));
> +
> +        hr = IAMStreamConfig_SetFormat(stream_config, format);
> +        ok(hr == S_OK, "Got hr %#x.\n", hr);
> +
> +        hr = IAMStreamConfig_GetFormat(stream_config, &format2);
> +        ok(hr == S_OK, "Got hr %#x.\n", hr);
> +        ok(compare_media_types(format, format2), "Media types didn't match.\n");
> +        DeleteMediaType(format2);
> +
> +        hr = IPin_EnumMediaTypes(pin, &enum_media_types);
> +        ok(hr == S_OK, "Got hr %#x.\n", hr);
> +        hr = IEnumMediaTypes_Next(enum_media_types, 1, &format2, NULL);
> +        ok(hr == S_OK, "Got hr %#x.\n", hr);
> +
> +        /* Which media types will match varies in wine depending on the attached webcam */
> +        todo_wine_if(compare_media_types(format, format2) == FALSE)
> +        ok(compare_media_types(format, format2), "Media types didn't match.\n");
> +
> +        DeleteMediaType(format2);
> +        IEnumMediaTypes_Release(enum_media_types);
> +
> +        FreeMediaType(format);
> +    }
>  
>      IAMStreamConfig_Release(stream_config);
>  }
> @@ -260,6 +310,50 @@ static void test_misc_flags(IBaseFilter *filter)
>      IAMFilterMiscFlags_Release(misc_flags);
>  }
>  
> +static int count_media_types(IPin *pin)
> +{
> +    IEnumMediaTypes *enum_media_types;
> +    AM_MEDIA_TYPE *pmt;
> +    int count = 0;
> +
> +    IPin_EnumMediaTypes(pin, &enum_media_types);
> +    while (IEnumMediaTypes_Next(enum_media_types, 1, &pmt, NULL) == S_OK)
> +    {
> +        CoTaskMemFree(pmt);
> +        count++;
> +    }
> +    IEnumMediaTypes_Release(enum_media_types);
> +
> +    return count;
> +}
> +
> +static void count_pins_media_types(IBaseFilter *filter, int *pin_count, int *media_type_count)
> +{
> +    IEnumPins *enum_pins;
> +    IPin *pin;
> +    HRESULT hr;
> +
> +    *pin_count = 0;
> +    *media_type_count = 0;
> +
> +    hr = IBaseFilter_EnumPins(filter, &enum_pins);
> +    ok(hr == S_OK, "Got hr %#x.\n", hr);
> +
> +    while ((hr = IEnumPins_Next(enum_pins, 1, &pin, NULL)) == S_OK)
> +    {
> +        PIN_DIRECTION pin_direction;
> +        IPin_QueryDirection(pin, &pin_direction);
> +        if (pin_direction == PINDIR_OUTPUT)
> +        {
> +            (*pin_count)++;
> +            (*media_type_count) += count_media_types(pin);
> +        }
> +        IPin_Release(pin);
> +    }
> +
> +    IEnumPins_Release(enum_pins);
> +}
> +
>  START_TEST(videocapture)
>  {
>      ICreateDevEnum *dev_enum;
> @@ -269,6 +363,7 @@ START_TEST(videocapture)
>      WCHAR *name;
>      HRESULT hr;
>      ULONG ref;
> +    int pin_count, media_type_count;
>  
>      CoInitialize(NULL);
>  
> @@ -297,7 +392,19 @@ START_TEST(videocapture)
>          if (hr == S_OK)
>          {
>              test_filter_interfaces(filter);
> +
> +            count_pins_media_types(filter, &pin_count, &media_type_count);
> +            ok(media_type_count > pin_count,
> +                    "Expected media type count (%d) to be greater than pin count (%d)\n",
> +                    media_type_count, pin_count);
> +
>              test_pins(filter);
> +
> +            count_pins_media_types(filter, &pin_count, &media_type_count);
> +            todo_wine ok(media_type_count == pin_count,
> +                    "Expected media type count (%d) to be equal to pin count (%d)\n",
> +                    media_type_count, pin_count);
> +

This is a bit awkward (and, for that matter, doesn't exactly prove
either of the propositions desired). Moreover, it seems that the tests
added to test_stream_config() already prove this.

>              test_misc_flags(filter);
>              ref = IBaseFilter_Release(filter);
>              ok(!ref, "Got outstanding refcount %d.\n", ref);
> @@ -305,6 +412,16 @@ START_TEST(videocapture)
>          else
>              skip("Failed to open capture device, hr=%#x.\n", hr);
>  
> +        hr = IMoniker_BindToObject(moniker, NULL, NULL, &IID_IBaseFilter, (void**)&filter);
> +        if (hr == S_OK)
> +        {
> +            count_pins_media_types(filter, &pin_count, &media_type_count);
> +            ok(media_type_count > pin_count,
> +                    "Expected media type count (%d) to be greater than pin count (%d)\n",
> +                    media_type_count, pin_count);
> +            ref = IBaseFilter_Release(filter);
> +        }
> +

I guess, but I also don't really see a reason why the previous
instantiation of a filter would affect this one.

>          IMoniker_Release(moniker);
>      }
>  
> 

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