[PATCH 6/7] quartz/tests: Add tests for MPEG audio decoder sample processing.

[Zebediah Figura (she/her)]

On 5/3/22 13:28, Anton Baskanov wrote:
> Signed-off-by: Anton Baskanov <baskanov at gmail.com>
> ---
>   dlls/quartz/tests/mpegaudio.c | 83 +++++++++++++++++++++++++++++++++++
>   1 file changed, 83 insertions(+)
> 
> diff --git a/dlls/quartz/tests/mpegaudio.c b/dlls/quartz/tests/mpegaudio.c
> index def5dc90238..0044d3bef6f 100644
> --- a/dlls/quartz/tests/mpegaudio.c
> +++ b/dlls/quartz/tests/mpegaudio.c
> @@ -846,6 +846,7 @@ struct testfilter
>       struct strmbase_source source;
>       struct strmbase_sink sink;
>       const AM_MEDIA_TYPE *mt;
> +    unsigned int got_sample;
>   };
>   
>   static inline struct testfilter *impl_from_strmbase_filter(struct strmbase_filter *iface)
> @@ -919,11 +920,39 @@ static HRESULT testsink_connect(struct strmbase_sink *iface, IPin *peer, const A
>       return S_OK;
>   }
>   
> +static HRESULT WINAPI testsink_Receive(struct strmbase_sink *iface, IMediaSample *sample)
> +{
> +    struct testfilter *filter = impl_from_strmbase_filter(iface->pin.filter);
> +    unsigned int i;
> +    BYTE *data;
> +    HRESULT hr;
> +    LONG size;
> +
> +    ++filter->got_sample;
> +
> +    size = IMediaSample_GetSize(sample);
> +    ok(size == 3072, "Got size %lu.\n", size);
> +    size = IMediaSample_GetActualDataLength(sample);
> +    ok(size == 768, "Got valid size %lu.\n", size);
> +
> +    hr = IMediaSample_GetPointer(sample, &data);
> +    ok(hr == S_OK, "Got hr %#lx.\n", hr);
> +    for (i = 0; i < size / 2; ++i)
> +    {
> +        short value;
> +        memcpy(&value, &data[i * 2], 2);
> +        ok(abs(value) <= 1, "Got value %d.\n", value);

I don't know if we really need to bother with validating the output data.

(If we do, though, it seems a bit more idiomatic to just alias "data" 
with a "const short *" pointer.)