[PATCH 0/5] MR2782: mf/tests: Test byte stream handler resolution time and media source presentation descriptor.

[Rémi Bernon]

This tests that the resolution should be quick enough to not trigger an Unreal Engine race condition. This also checks the determinism of the media source presentation descriptor stream ordering, as well as the stream selection updates when the media source is started.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782

[PATCH 1/5] mf/tests: Test byte stream handler to media source resolution time.

[Rémi Bernon]

From: Rémi Bernon <rbernon(a)codeweavers.com>

Unreal Engine has a race condition in its media player where it starts
the resolution of a media source, waiting for its completion in an async
task, and expects to set the media player source from its result.

At the same time, the media player uses timer to tick every 200ms or so,
and if the first tick happens before the media source resolution end,
the media player ends up in a corrupted state and playback may fail or
get stuck.

On Windows, the media source resolution takes very little time, and
usually less than 1ms. On Wine, because of the current design of the
media soruce, it can often take more than 200ms depending on the setup,
and very rarely less than 50ms.
---
 dlls/mf/tests/mf.c | 120 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)

diff --git a/dlls/mf/tests/mf.c b/dlls/mf/tests/mf.c
index e8d7252aa3f..5fd8adb2f6b 100644
--- a/dlls/mf/tests/mf.c
+++ b/dlls/mf/tests/mf.c
@@ -41,6 +41,9 @@
 #include "initguid.h"
 #include "evr9.h"
 
+DEFINE_GUID(CLSID_MPEG4ByteStreamHandler,0x271c3902,0x6095,0x4c45,0xa2,0x2f,0x20,0x09,0x18,0x16,0xee,0x9e);
+DEFINE_GUID(CLSID_GStreamerByteStreamHandler,0x317df618,0x5e5a,0x468a,0x9f,0x15,0xd8,0x27,0xa9,0xa0,0x81,0x62);
+
 #define DEFINE_EXPECT(func) \
     static BOOL expect_ ## func = FALSE, called_ ## func = FALSE
 
@@ -1815,6 +1818,7 @@ struct test_callback
     LONG refcount;
 
     HANDLE event;
+    IMFAsyncResult *result;
     IMFMediaEvent *media_event;
     BOOL check_media_event;
 };
@@ -1851,6 +1855,8 @@ static ULONG WINAPI testcallback_Release(IMFAsyncCallback *iface)
 
     if (!refcount)
     {
+        if (callback->result)
+            IMFAsyncResult_Release(callback->result);
         if (callback->media_event)
             IMFMediaEvent_Release(callback->media_event);
         CloseHandle(callback->event);
@@ -1890,6 +1896,7 @@ static HRESULT WINAPI testcallback_Invoke(IMFAsyncCallback *iface, IMFAsyncResul
         IUnknown_Release(object);
     }
 
+    IMFAsyncResult_AddRef((callback->result = result));
     SetEvent(callback->event);
 
     return S_OK;
@@ -1920,6 +1927,18 @@ static IMFAsyncCallback *create_test_callback(BOOL check_media_event)
     return &callback->IMFAsyncCallback_iface;
 }
 
+static void wait_async_result(IMFAsyncCallback *iface, IMFAsyncResult **result)
+{
+    struct test_callback *impl = impl_from_IMFAsyncCallback(iface);
+    UINT ret;
+
+    ret = WaitForSingleObject(impl->event, 5000);
+    ok(!ret, "WaitForSingleObject returned %#x\n", ret);
+
+    if ((*result = impl->result))
+        impl->result = NULL;
+}
+
 #define wait_media_event(a, b, c, d, e) wait_media_event_(__LINE__, a, b, c, d, e)
 static HRESULT wait_media_event_(int line, IMFMediaSession *session, IMFAsyncCallback *callback,
         MediaEventType expect_type, DWORD timeout, PROPVARIANT *value)
@@ -6704,6 +6723,106 @@ static void test_MFRequireProtectedEnvironment(void)
     ok(ref == 0, "Release returned %ld\n", ref);
 }
 
+static void load_resource_stream(const WCHAR *name, IMFByteStream **stream)
+{
+    HRSRC resource = FindResourceW(NULL, name, (const WCHAR *)RT_RCDATA);
+    void *resource_data;
+    DWORD resource_len;
+    HRESULT hr;
+
+    ok(resource != 0, "FindResourceW %s failed, error %lu\n", debugstr_w(name), GetLastError());
+    resource_data = LockResource(LoadResource(GetModuleHandleW(NULL), resource));
+    resource_len = SizeofResource(GetModuleHandleW(NULL), resource);
+
+    hr = MFCreateTempFile(MF_ACCESSMODE_READWRITE, MF_OPENMODE_DELETE_IF_EXIST, MF_FILEFLAGS_NONE, stream);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+    hr = IMFByteStream_Write(*stream, resource_data, resource_len, &resource_len);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+    hr = IMFByteStream_SetCurrentPosition(*stream, 0);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+}
+
+static void subtest_media_source(const WCHAR *resource, const GUID *guid)
+{
+    IMFByteStreamHandler *handler;
+    IMFAsyncCallback *callback;
+    IMFAsyncResult *result;
+    IMFByteStream *stream;
+    IUnknown *tmp_unknown;
+    MF_OBJECT_TYPE type;
+    DWORD time = 0;
+    QWORD bytes;
+    HRESULT hr;
+
+    if (!strcmp(winetest_platform, "wine")) guid = &CLSID_GStreamerByteStreamHandler;
+
+    hr = MFStartup(MF_VERSION, MFSTARTUP_FULL);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+
+    callback = create_test_callback(FALSE);
+    ok(!!callback, "got callback %p\n", callback);
+
+    hr = CoCreateInstance(guid, NULL, CLSCTX_INPROC_SERVER, &IID_IMFByteStreamHandler, (void **)&handler);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+
+    check_interface(handler, &IID_IUnknown, TRUE);
+    check_interface(handler, &IID_IMFAsyncCallback, FALSE);
+
+    hr = IMFByteStreamHandler_GetMaxNumberOfBytesRequiredForResolution(handler, &bytes);
+    todo_wine ok(hr == S_OK, "got hr %#lx\n", hr);
+
+
+    load_resource_stream(resource, &stream);
+
+    time -= GetTickCount();
+    hr = IMFByteStreamHandler_BeginCreateObject(handler, stream, NULL, MF_RESOLUTION_MEDIASOURCE, NULL, NULL, callback, NULL);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+    wait_async_result(callback, &result);
+    time += GetTickCount();
+    todo_wine ok(time <= 5 || broken(time <= 20) /* testbot may be very slow */, "source resolution took %lums\n", time);
+    ok(!!result, "got result %p\n", result);
+
+    IMFByteStream_Release(stream);
+
+
+    hr = IMFAsyncResult_GetStatus(result);
+    if (hr == MF_E_CANNOT_PARSE_BYTESTREAM)
+    {
+        hr = IMFByteStreamHandler_EndCreateObject(handler, result, &type, &tmp_unknown);
+        ok(hr == MF_E_CANNOT_PARSE_BYTESTREAM, "got hr %#lx\n", hr);
+        IMFAsyncResult_Release(result);
+
+        win_skip("MP4 media source is not supported, skipping tests.\n");
+        goto skip_tests;
+    }
+
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+    hr = IMFAsyncResult_GetObject(result, &tmp_unknown);
+    todo_wine ok(hr == S_OK, "got hr %#lx\n", hr);
+    todo_wine ok(tmp_unknown == (void *)handler, "got object %p\n", tmp_unknown);
+    if (handler == (void *)tmp_unknown) IUnknown_Release(tmp_unknown);
+    hr = IMFAsyncResult_GetState(result, &tmp_unknown);
+    ok(hr == E_POINTER, "got hr %#lx\n", hr);
+
+    hr = IMFByteStreamHandler_EndCreateObject(handler, result, &type, &tmp_unknown);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+    IMFAsyncResult_Release(result);
+
+    IUnknown_Release(tmp_unknown);
+
+skip_tests:
+    IMFByteStreamHandler_Release(handler);
+    IMFAsyncCallback_Release(callback);
+
+    hr = MFShutdown();
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+}
+
+static void test_media_source(void)
+{
+    subtest_media_source(L"test.mp4", &CLSID_MPEG4ByteStreamHandler);
+}
+
 START_TEST(mf)
 {
     init_functions();
@@ -6737,4 +6856,5 @@ START_TEST(mf)
     test_MFGetSupportedSchemes();
     test_MFGetTopoNodeCurrentType();
     test_MFRequireProtectedEnvironment();
+    test_media_source();
 }
-- 
GitLab


https://gitlab.winehq.org/wine/wine/-/merge_requests/2782

[PATCH 2/5] mf/tests: Test media sources with multiple audio/video streams.

[Rémi Bernon]

From: Rémi Bernon <rbernon(a)codeweavers.com>

---
 dlls/mf/tests/mf.c                 |  81 +++++++++++++++++++++++++++--
 dlls/mf/tests/mf_test.h            |   1 +
 dlls/mf/tests/multiple-streams.avi | Bin 0 -> 47250 bytes
 dlls/mf/tests/multiple-streams.mp4 | Bin 0 -> 33041 bytes
 dlls/mf/tests/resource.rc          |  53 +++++++++++++++++++
 dlls/mf/tests/transform.c          |   1 +
 6 files changed, 133 insertions(+), 3 deletions(-)
 create mode 100644 dlls/mf/tests/multiple-streams.avi
 create mode 100644 dlls/mf/tests/multiple-streams.mp4

diff --git a/dlls/mf/tests/mf.c b/dlls/mf/tests/mf.c
index 5fd8adb2f6b..2ff157e65d8 100644
--- a/dlls/mf/tests/mf.c
+++ b/dlls/mf/tests/mf.c
@@ -42,7 +42,9 @@
 #include "evr9.h"
 
 DEFINE_GUID(CLSID_MPEG4ByteStreamHandler,0x271c3902,0x6095,0x4c45,0xa2,0x2f,0x20,0x09,0x18,0x16,0xee,0x9e);
+DEFINE_GUID(CLSID_AVIByteStreamHandler,0x7afa253e,0xf823,0x42f6,0xa5,0xd9,0x71,0x4b,0xde,0x46,0x74,0x12);
 DEFINE_GUID(CLSID_GStreamerByteStreamHandler,0x317df618,0x5e5a,0x468a,0x9f,0x15,0xd8,0x27,0xa9,0xa0,0x81,0x62);
+static BOOL has_mp4_media_source;
 
 #define DEFINE_EXPECT(func) \
     static BOOL expect_ ## func = FALSE, called_ ## func = FALSE
@@ -4922,6 +4924,7 @@ static void test_sample_grabber_orientation(GUID subtype)
         win_skip("MP4 media source is not supported, skipping tests.\n");
         return;
     }
+    has_mp4_media_source = TRUE;
 
     callback = create_test_callback(TRUE);
     grabber_callback = impl_from_IMFSampleGrabberSinkCallback(create_test_grabber_callback());
@@ -6723,6 +6726,13 @@ static void test_MFRequireProtectedEnvironment(void)
     ok(ref == 0, "Release returned %ld\n", ref);
 }
 
+struct presentation_desc
+{
+    UINT max_required_bytes;
+    UINT stream_count;
+    struct attribute_desc attributes[16];
+};
+
 static void load_resource_stream(const WCHAR *name, IMFByteStream **stream)
 {
     HRSRC resource = FindResourceW(NULL, name, (const WCHAR *)RT_RCDATA);
@@ -6742,18 +6752,22 @@ static void load_resource_stream(const WCHAR *name, IMFByteStream **stream)
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
 }
 
-static void subtest_media_source(const WCHAR *resource, const GUID *guid)
+static void subtest_media_source(const WCHAR *resource, const GUID *guid, const struct presentation_desc *expect)
 {
+    IMFPresentationDescriptor *presentation;
     IMFByteStreamHandler *handler;
+    IMFMediaSource *media_source;
     IMFAsyncCallback *callback;
     IMFAsyncResult *result;
     IMFByteStream *stream;
     IUnknown *tmp_unknown;
     MF_OBJECT_TYPE type;
-    DWORD time = 0;
+    DWORD time = 0, stream_count;
     QWORD bytes;
     HRESULT hr;
 
+    winetest_push_context("%s", debugstr_w(resource));
+
     if (!strcmp(winetest_platform, "wine")) guid = &CLSID_GStreamerByteStreamHandler;
 
     hr = MFStartup(MF_VERSION, MFSTARTUP_FULL);
@@ -6770,6 +6784,7 @@ static void subtest_media_source(const WCHAR *resource, const GUID *guid)
 
     hr = IMFByteStreamHandler_GetMaxNumberOfBytesRequiredForResolution(handler, &bytes);
     todo_wine ok(hr == S_OK, "got hr %#lx\n", hr);
+    todo_wine ok(bytes == expect->max_required_bytes, "got bytes %I64u\n", bytes);
 
 
     load_resource_stream(resource, &stream);
@@ -6808,19 +6823,79 @@ static void subtest_media_source(const WCHAR *resource, const GUID *guid)
     ok(hr == S_OK, "got hr %#lx\n", hr);
     IMFAsyncResult_Release(result);
 
+
+    check_interface(tmp_unknown, &IID_IMFMediaSource, TRUE);
+    todo_wine check_interface(tmp_unknown, &IID_IMFMediaSourceEx, has_mp4_media_source && has_video_processor /* >= w10 */);
+    check_interface(tmp_unknown, &IID_IMFMediaEventGenerator, TRUE);
+    check_interface(tmp_unknown, &IID_IMFGetService, TRUE);
+
+    check_service_interface(tmp_unknown, &MF_RATE_CONTROL_SERVICE, &IID_IMFRateControl, TRUE);
+    check_service_interface(tmp_unknown, &MF_RATE_CONTROL_SERVICE, &IID_IMFRateSupport, TRUE);
+    /* check_service_interface(tmp_unknown, &MF_QUALITY_SERVICES, &IID_IMFQualityAdvise, TRUE); */
+    /* check_service_interface(tmp_unknown, &MF_METADATA_PROVIDER_SERVICE, &IID_IMFMetadataProvider, TRUE); */
+
+    hr = IUnknown_QueryInterface(tmp_unknown, &IID_IMFMediaSource, (void **)&media_source);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
     IUnknown_Release(tmp_unknown);
 
+
+    hr = IMFMediaSource_CreatePresentationDescriptor(media_source, &presentation);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+
+    hr = IMFPresentationDescriptor_GetStreamDescriptorCount(presentation, &stream_count);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+    todo_wine_if(stream_count == 4 && expect->stream_count == 5)
+    ok(stream_count == expect->stream_count, "got stream_count %lu\n", stream_count);
+    check_attributes((IMFAttributes *)presentation, expect->attributes, -1);
+    IMFPresentationDescriptor_Release(presentation);
+
+    hr = IMFMediaSource_Shutdown(media_source);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+    IMFMediaSource_Release(media_source);
+
+
 skip_tests:
     IMFByteStreamHandler_Release(handler);
     IMFAsyncCallback_Release(callback);
 
     hr = MFShutdown();
     ok(hr == S_OK, "got hr %#lx\n", hr);
+
+    winetest_pop_context();
 }
 
 static void test_media_source(void)
 {
-    subtest_media_source(L"test.mp4", &CLSID_MPEG4ByteStreamHandler);
+/* w7 doesn't have MF_PD_MIME_TYPE */
+#define ATTR_WSTR_OR_NONE(k, v, ...) {.key = has_video_processor ? &k : NULL, .name = #k, {.vt = VT_LPWSTR, .pwszVal = (WCHAR *)v}, __VA_ARGS__ }
+    const struct presentation_desc mp4_desc =
+    {
+        .max_required_bytes = has_video_processor ? 1024 : 16 /* w7 */,
+        .stream_count = 5,
+        .attributes =
+        {
+            ATTR_RATIO(MF_PD_DURATION, 0, 25000000),
+            ATTR_RATIO(MF_PD_TOTAL_FILE_SIZE, 0, 33041, .todo = TRUE),
+            ATTR_WSTR_OR_NONE(MF_PD_MIME_TYPE, L"video/mp4", .todo = TRUE),
+        },
+    };
+    const struct presentation_desc avi_desc =
+    {
+        .max_required_bytes = 12,
+        .stream_count = 3,
+        .attributes =
+        {
+            ATTR_RATIO(MF_PD_DURATION, 0, 20020000),
+            ATTR_RATIO(MF_PD_TOTAL_FILE_SIZE, 0, 47250, .todo = TRUE),
+            ATTR_UINT32(MF_PD_AUDIO_ENCODING_BITRATE, 106176, .todo = TRUE),
+            ATTR_UINT32(MF_PD_VIDEO_ENCODING_BITRATE, 1125200, .todo = TRUE),
+            ATTR_WSTR_OR_NONE(MF_PD_MIME_TYPE, L"video/avi", .todo = TRUE),
+        },
+    };
+#undef ATTR_WSTR_OR_NONE
+
+    subtest_media_source(L"multiple-streams.mp4", &CLSID_MPEG4ByteStreamHandler, &mp4_desc);
+    subtest_media_source(L"multiple-streams.avi", &CLSID_AVIByteStreamHandler, &avi_desc);
 }
 
 START_TEST(mf)
diff --git a/dlls/mf/tests/mf_test.h b/dlls/mf/tests/mf_test.h
index 77af51abd55..7032f6409e6 100644
--- a/dlls/mf/tests/mf_test.h
+++ b/dlls/mf/tests/mf_test.h
@@ -54,6 +54,7 @@ typedef struct attribute_desc media_type_desc[32];
 #define ATTR_BLOB(k, p, n, ...)   {.key = &k, .name = #k, {.vt = VT_VECTOR | VT_UI1, .caub = {.pElems = (void *)p, .cElems = n}}, __VA_ARGS__ }
 #define ATTR_RATIO(k, n, d, ...)  {.key = &k, .name = #k, {.vt = VT_UI8, .uhVal = {.HighPart = n, .LowPart = d}}, .ratio = TRUE, __VA_ARGS__ }
 #define ATTR_UINT64(k, v, ...)    {.key = &k, .name = #k, {.vt = VT_UI8, .uhVal = {.QuadPart = v}}, __VA_ARGS__ }
+#define ATTR_WSTR(k, v, ...)      {.key = &k, .name = #k, {.vt = VT_LPWSTR, .pwszVal = (WCHAR *)v}, __VA_ARGS__ }
 
 #define check_media_type(a, b, c) check_attributes_(__FILE__, __LINE__, (IMFAttributes *)a, b, c)
 #define check_attributes(a, b, c) check_attributes_(__FILE__, __LINE__, a, b, c)
diff --git a/dlls/mf/tests/multiple-streams.avi b/dlls/mf/tests/multiple-streams.avi
new file mode 100644
index 0000000000000000000000000000000000000000..8ed6f1ceb6026c4db79716ff2cd96826f50a7445
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diff --git a/dlls/mf/tests/multiple-streams.mp4 b/dlls/mf/tests/multiple-streams.mp4
new file mode 100644
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diff --git a/dlls/mf/tests/resource.rc b/dlls/mf/tests/resource.rc
index 10a969ff037..7808baa6baa 100644
--- a/dlls/mf/tests/resource.rc
+++ b/dlls/mf/tests/resource.rc
@@ -95,3 +95,56 @@ rgb32frame-grabber.bmp RCDATA rgb32frame-grabber.bmp
  */
 /* @makedep: test.mp4 */
 test.mp4 RCDATA test.mp4
+
+/* Generated with:
+gst-launch-1.0 videotestsrc num-buffers=60 pattern=smpte100 ! \
+      taginject tags="language-code=ger" ! \
+      video/x-raw,format=I420,width=72,height=72,framerate=30000/1000 ! \
+      videoflip method=clockwise ! videoconvert ! x264enc ! mux. \
+      \
+      audiotestsrc num-buffers=60 ! audio/x-raw,format=F32LE,channels=1 ! \
+      taginject tags="language-code=eng" ! \
+      audioconvert ! audioresample ! avenc_aac ! mux. \
+      \
+      videotestsrc num-buffers=60 pattern=smpte100 ! \
+      video/x-raw,format=I420,width=64,height=64,framerate=24000/1000 ! \
+      videoflip method=clockwise ! videoconvert ! x264enc ! mux. \
+      \
+      audiotestsrc num-buffers=60 ! audio/x-raw,format=S16LE,layout=interleaved ! \
+      taginject tags="language-code=fre" ! \
+      audioconvert ! audioresample ! lamemp3enc ! mux. \
+      \
+      videotestsrc num-buffers=60 pattern=smpte100 ! \
+      video/x-raw,format=I420,width=96,height=64,framerate=30000/1000 ! \
+      videoflip method=clockwise ! videoconvert ! x264enc ! mux. \
+      \
+      mp4mux name=mux ! filesink location=dlls/mf/tests/multiple-streams.tmp && \
+ffmpeg -y -i dlls/mf/tests/multiple-streams.tmp \
+       -metadata:s:v:0 title="Other Video" -metadata:s:v:2 title="First Video" \
+       -metadata:s:a:0 title="This is a very long audio stream title string" \
+       -codec copy -map 0 dlls/mf/tests/multiple-streams.mp4
+*/
+/* @makedep: multiple-streams.mp4 */
+multiple-streams.mp4 RCDATA multiple-streams.mp4
+
+/* Generated with:
+gst-launch-1.0 videotestsrc num-buffers=60 pattern=smpte100 ! \
+      taginject tags="title='Video 1',language-code=ger" ! \
+      video/x-raw,format=I420,width=64,height=64,framerate=30000/1001 ! \
+      videoflip method=clockwise ! videoconvert ! mpeg2enc ! mux. \
+      \
+      audiotestsrc num-buffers=60 ! audio/x-raw,format=F32LE,channels=1 ! \
+      taginject tags="language-code=eng" ! \
+      audioconvert ! audioresample ! avenc_aac ! mux. \
+      \
+      audiotestsrc num-buffers=60 ! audio/x-raw,format=S16LE,layout=interleaved ! \
+      taginject tags="language-code=fre" ! \
+      audioconvert ! audioresample ! lamemp3enc ! mux. \
+      \
+      avimux name=mux ! filesink location=dlls/mf/tests/multiple-streams.tmp && \
+ffmpeg -y -i dlls/mf/tests/multiple-streams.tmp -metadata:s:v:0 title="Video" \
+       -metadata:s:a:0 title="This is a very long audio stream title string" \
+       -codec copy -map 0:a:0 -map 0:v:0 -map 0:a:1 dlls/mf/tests/multiple-streams.avi
+*/
+/* @makedep: multiple-streams.avi */
+multiple-streams.avi RCDATA multiple-streams.avi
diff --git a/dlls/mf/tests/transform.c b/dlls/mf/tests/transform.c
index 34a00526eab..d6b75ef0d57 100644
--- a/dlls/mf/tests/transform.c
+++ b/dlls/mf/tests/transform.c
@@ -255,6 +255,7 @@ void check_attributes_(const char *file, int line, IMFAttributes *attributes,
         switch (value.vt)
         {
         default: sprintf(buffer, "??"); break;
+        case VT_LPWSTR: sprintf(buffer, "%s", debugstr_w(value.pwszVal)); break;
         case VT_CLSID: sprintf(buffer, "%s", debugstr_guid(value.puuid)); break;
         case VT_UI4: sprintf(buffer, "%lu", value.ulVal); break;
         case VT_UI8:
-- 
GitLab


https://gitlab.winehq.org/wine/wine/-/merge_requests/2782

[PATCH 3/5] mf/tests: Test media sources stream descriptors attributes.

[Rémi Bernon]

From: Rémi Bernon <rbernon(a)codeweavers.com>

The tests are all flaky because of the current media source design,
which uses high-level GStreamer abstractions, like decodebin, which
internally create threads and queues, and which cannot provide any
deterministic stream ordering.
---
 dlls/mf/tests/mf.c | 114 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)

diff --git a/dlls/mf/tests/mf.c b/dlls/mf/tests/mf.c
index 2ff157e65d8..93da65e58c0 100644
--- a/dlls/mf/tests/mf.c
+++ b/dlls/mf/tests/mf.c
@@ -6726,11 +6726,19 @@ static void test_MFRequireProtectedEnvironment(void)
     ok(ref == 0, "Release returned %ld\n", ref);
 }
 
+struct stream_desc
+{
+    UINT id;
+    BOOL selected;
+    struct attribute_desc attributes[16];
+};
+
 struct presentation_desc
 {
     UINT max_required_bytes;
     UINT stream_count;
     struct attribute_desc attributes[16];
+    struct stream_desc streams[16];
 };
 
 static void load_resource_stream(const WCHAR *name, IMFByteStream **stream)
@@ -6765,6 +6773,7 @@ static void subtest_media_source(const WCHAR *resource, const GUID *guid, const
     DWORD time = 0, stream_count;
     QWORD bytes;
     HRESULT hr;
+    UINT i;
 
     winetest_push_context("%s", debugstr_w(resource));
 
@@ -6847,6 +6856,38 @@ static void subtest_media_source(const WCHAR *resource, const GUID *guid, const
     todo_wine_if(stream_count == 4 && expect->stream_count == 5)
     ok(stream_count == expect->stream_count, "got stream_count %lu\n", stream_count);
     check_attributes((IMFAttributes *)presentation, expect->attributes, -1);
+
+    for (i = 0; i < stream_count; ++i)
+    {
+        const struct stream_desc *expect_stream = expect->streams + i;
+        IMFMediaTypeHandler *type_handler;
+        IMFStreamDescriptor *stream;
+        DWORD id, type_count;
+        BOOL selected;
+
+        winetest_push_context("%u", i);
+
+        hr = IMFPresentationDescriptor_GetStreamDescriptorByIndex(presentation, i, &selected, &stream);
+        ok(hr == S_OK, "got hr %#lx\n", hr);
+        todo_wine_if(!expect_stream->selected)
+        ok(selected == expect_stream->selected, "got selected %u\n", selected);
+        hr = IMFStreamDescriptor_GetStreamIdentifier(stream, &id);
+        ok(hr == S_OK, "got hr %#lx\n", hr);
+        todo_wine ok(id == expect_stream->id, "got id %lu\n", id);
+        flaky_wine check_attributes((IMFAttributes *)stream, expect_stream->attributes, -1);
+
+        hr = IMFStreamDescriptor_GetMediaTypeHandler(stream, &type_handler);
+        ok(hr == S_OK, "got hr %#lx\n", hr);
+        hr = IMFMediaTypeHandler_GetMediaTypeCount(type_handler, &type_count);
+        ok(hr == S_OK, "got hr %#lx\n", hr);
+        todo_wine ok(type_count == 1, "got type_count %lu\n", type_count);
+
+        IMFMediaTypeHandler_Release(type_handler);
+        IMFStreamDescriptor_Release(stream);
+
+        winetest_pop_context();
+    }
+
     IMFPresentationDescriptor_Release(presentation);
 
     hr = IMFMediaSource_Shutdown(media_source);
@@ -6878,6 +6919,52 @@ static void test_media_source(void)
             ATTR_RATIO(MF_PD_TOTAL_FILE_SIZE, 0, 33041, .todo = TRUE),
             ATTR_WSTR_OR_NONE(MF_PD_MIME_TYPE, L"video/mp4", .todo = TRUE),
         },
+        .streams =
+        {
+            {
+                .id = 1,
+                .attributes =
+                {
+                    ATTR_WSTR(MF_SD_LANGUAGE, L"fr", /* flaky, .todo = TRUE */),
+                    ATTR_UINT32(MF_SD_MUTUALLY_EXCLUSIVE, 1, .todo = TRUE),
+                },
+            },
+            {
+                .id = 2,
+                .selected = 1,
+                .attributes =
+                {
+                    ATTR_WSTR(MF_SD_LANGUAGE, L"en", /* flaky, .todo_value = TRUE */),
+                    ATTR_UINT32(MF_SD_MUTUALLY_EXCLUSIVE, 1, .todo = TRUE),
+                    ATTR_WSTR_OR_NONE(MF_SD_STREAM_NAME, L"This is a very long audio stream title string", .todo_value = TRUE),
+                },
+            },
+            {
+                .id = 3,
+                .attributes =
+                {
+                    ATTR_UINT32(MF_SD_MUTUALLY_EXCLUSIVE, 1, .todo = TRUE),
+                    ATTR_WSTR_OR_NONE(MF_SD_STREAM_NAME, L"First Video", /* flaky, .todo = TRUE */),
+                },
+            },
+            {
+                .id = 4,
+                .attributes =
+                {
+                    ATTR_UINT32(MF_SD_MUTUALLY_EXCLUSIVE, 1, .todo = TRUE),
+                },
+            },
+            {
+                .id = 5,
+                .selected = 1,
+                .attributes =
+                {
+                    ATTR_WSTR(MF_SD_LANGUAGE, L"de", /* flaky, .todo_value = TRUE */),
+                    ATTR_UINT32(MF_SD_MUTUALLY_EXCLUSIVE, 1, .todo = TRUE),
+                    ATTR_WSTR_OR_NONE(MF_SD_STREAM_NAME, L"Other Video", /* flaky, .todo = TRUE */),
+                },
+            },
+        },
     };
     const struct presentation_desc avi_desc =
     {
@@ -6891,6 +6978,33 @@ static void test_media_source(void)
             ATTR_UINT32(MF_PD_VIDEO_ENCODING_BITRATE, 1125200, .todo = TRUE),
             ATTR_WSTR_OR_NONE(MF_PD_MIME_TYPE, L"video/avi", .todo = TRUE),
         },
+        .streams =
+        {
+            {
+                .id = 1,
+                .selected = 1,
+                .attributes =
+                {
+                    ATTR_UINT32(MF_SD_MUTUALLY_EXCLUSIVE, 1, .todo = TRUE),
+                    ATTR_WSTR(MF_SD_STREAM_NAME, L"This is a very long audio stream title string", /* flaky, .todo = TRUE */),
+                },
+            },
+            {
+                .id = 2,
+                .selected = 1,
+                .attributes =
+                {
+                    ATTR_WSTR(MF_SD_STREAM_NAME, L"Video", /* flaky, .todo = TRUE */),
+                },
+            },
+            {
+                .id = 3,
+                .attributes =
+                {
+                    ATTR_UINT32(MF_SD_MUTUALLY_EXCLUSIVE, 1, .todo = TRUE),
+                },
+            },
+        },
     };
 #undef ATTR_WSTR_OR_NONE
 
-- 
GitLab


https://gitlab.winehq.org/wine/wine/-/merge_requests/2782

[PATCH 4/5] winegstreamer: Keep a reference on the media source start descriptor.

[Rémi Bernon]

From: Rémi Bernon <rbernon(a)codeweavers.com>

---
 dlls/winegstreamer/media_source.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/winegstreamer/media_source.c b/dlls/winegstreamer/media_source.c
index 335b617becd..f24b9a670af 100644
--- a/dlls/winegstreamer/media_source.c
+++ b/dlls/winegstreamer/media_source.c
@@ -174,7 +174,10 @@ static ULONG WINAPI source_async_command_Release(IUnknown *iface)
     if (!refcount)
     {
         if (command->op == SOURCE_ASYNC_START)
+        {
+            IMFPresentationDescriptor_Release(command->u.start.descriptor);
             PropVariantClear(&command->u.start.position);
+        }
         else if (command->op == SOURCE_ASYNC_REQUEST_SAMPLE)
         {
             if (command->u.request_sample.token)
@@ -1357,6 +1360,7 @@ static HRESULT WINAPI media_source_Start(IMFMediaSource *iface, IMFPresentationD
     {
         struct source_async_command *command = impl_from_async_command_IUnknown(op);
         command->u.start.descriptor = descriptor;
+        IMFPresentationDescriptor_AddRef(descriptor);
         command->u.start.format = *time_format;
         PropVariantCopy(&command->u.start.position, position);
 
-- 
GitLab


https://gitlab.winehq.org/wine/wine/-/merge_requests/2782

[PATCH 5/5] mf/tests: Test media source presentation stream descriptor update.

[Rémi Bernon]

From: Rémi Bernon <rbernon(a)codeweavers.com>

---
 dlls/mf/tests/mf.c | 46 +++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 43 insertions(+), 3 deletions(-)

diff --git a/dlls/mf/tests/mf.c b/dlls/mf/tests/mf.c
index 93da65e58c0..603554c237d 100644
--- a/dlls/mf/tests/mf.c
+++ b/dlls/mf/tests/mf.c
@@ -1941,8 +1941,8 @@ static void wait_async_result(IMFAsyncCallback *iface, IMFAsyncResult **result)
         impl->result = NULL;
 }
 
-#define wait_media_event(a, b, c, d, e) wait_media_event_(__LINE__, a, b, c, d, e)
-static HRESULT wait_media_event_(int line, IMFMediaSession *session, IMFAsyncCallback *callback,
+#define wait_media_event(a, b, c, d, e) wait_media_event_(__LINE__, (IMFMediaEventGenerator *)a, b, c, d, e)
+static HRESULT wait_media_event_(int line, IMFMediaEventGenerator *session, IMFAsyncCallback *callback,
         MediaEventType expect_type, DWORD timeout, PROPVARIANT *value)
 {
     struct test_callback *impl = impl_from_IMFAsyncCallback(callback);
@@ -1953,7 +1953,7 @@ static HRESULT wait_media_event_(int line, IMFMediaSession *session, IMFAsyncCal
 
     do
     {
-        hr = IMFMediaSession_BeginGetEvent(session, &impl->IMFAsyncCallback_iface, (IUnknown *)session);
+        hr = IMFMediaEventGenerator_BeginGetEvent(session, &impl->IMFAsyncCallback_iface, (IUnknown *)session);
         ok_(__FILE__, line)(hr == S_OK, "Unexpected hr %#lx.\n", hr);
         ret = WaitForSingleObject(impl->event, timeout);
         ok_(__FILE__, line)(ret == WAIT_OBJECT_0, "WaitForSingleObject returned %lu\n", ret);
@@ -6763,6 +6763,7 @@ static void load_resource_stream(const WCHAR *name, IMFByteStream **stream)
 static void subtest_media_source(const WCHAR *resource, const GUID *guid, const struct presentation_desc *expect)
 {
     IMFPresentationDescriptor *presentation;
+    PROPVARIANT propvar;
     IMFByteStreamHandler *handler;
     IMFMediaSource *media_source;
     IMFAsyncCallback *callback;
@@ -6888,8 +6889,47 @@ static void subtest_media_source(const WCHAR *resource, const GUID *guid, const
         winetest_pop_context();
     }
 
+    IMFAsyncCallback_Release(callback);
+
+
+    callback = create_test_callback(TRUE);
+    ok(!!callback, "got callback %p\n", callback);
+
+    for (i = 0; i < stream_count; ++i)
+    {
+        hr = IMFPresentationDescriptor_DeselectStream(presentation, i);
+        ok(hr == S_OK, "got hr %#lx\n", hr);
+    }
+    hr = IMFPresentationDescriptor_SelectStream(presentation, 2);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+
+    propvar.vt = VT_EMPTY;
+    hr = IMFMediaSource_Start(media_source, presentation, &GUID_NULL, &propvar);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+
     IMFPresentationDescriptor_Release(presentation);
 
+    hr = wait_media_event(media_source, callback, MESourceStarted, INFINITE, &propvar);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+
+
+    hr = IMFMediaSource_CreatePresentationDescriptor(media_source, &presentation);
+    ok(hr == S_OK, "got hr %#lx\n", hr);
+
+    for (i = 0; i < stream_count; ++i)
+    {
+        IMFStreamDescriptor *stream;
+        BOOL selected;
+        hr = IMFPresentationDescriptor_GetStreamDescriptorByIndex(presentation, i, &selected, &stream);
+        ok(hr == S_OK, "got hr %#lx\n", hr);
+        if (i == 2) ok(selected, "got selected %u\n", selected);
+        else todo_wine ok(!selected, "got selected %u\n", selected);
+        IMFStreamDescriptor_Release(stream);
+    }
+
+    IMFPresentationDescriptor_Release(presentation);
+
+
     hr = IMFMediaSource_Shutdown(media_source);
     ok(hr == S_OK, "got hr %#lx\n", hr);
     IMFMediaSource_Release(media_source);
-- 
GitLab

https://gitlab.winehq.org/wine/wine/-/merge_requests/2782

[PATCH 5/5] mf/tests: Test media source presentation stream descriptor update.

[Marvin]

Hi,

It looks like your patch introduced the new failures shown below.
Please investigate and fix them before resubmitting your patch.
If they are not new, fixing them anyway would help a lot. Otherwise
please ask for the known failures list to be updated.

The tests also ran into some preexisting test failures. If you know how
to fix them that would be helpful. See the TestBot job for the details:

The full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=132558

Your paranoid android.


=== w1064v1507 (32 bit report) ===

mf:
mf.c:6838: Test failed: L"multiple-streams.mp4": Got hr 0x80004002, expected 0.
mf.c:6878: Test failed: L"multiple-streams.mp4": 1: "MF_SD_STREAM_NAME" missing, hr 0xc00d36e6
mf.c:6878: Test failed: L"multiple-streams.mp4": 2: "MF_SD_STREAM_NAME" missing, hr 0xc00d36e6
mf.c:6878: Test failed: L"multiple-streams.mp4": 4: "MF_SD_STREAM_NAME" missing, hr 0xc00d36e6
mf.c:6838: Test failed: L"multiple-streams.avi": Got hr 0x80004002, expected 0.

=== w864 (64 bit report) ===

mf:
mf.c:6807: Test failed: L"multiple-streams.avi": source resolution took 46ms

=== w1064v1507 (64 bit report) ===

mf:
mf.c:6838: Test failed: L"multiple-streams.mp4": Got hr 0x80004002, expected 0.
mf.c:6878: Test failed: L"multiple-streams.mp4": 1: "MF_SD_STREAM_NAME" missing, hr 0xc00d36e6
mf.c:6878: Test failed: L"multiple-streams.mp4": 2: "MF_SD_STREAM_NAME" missing, hr 0xc00d36e6
mf.c:6878: Test failed: L"multiple-streams.mp4": 4: "MF_SD_STREAM_NAME" missing, hr 0xc00d36e6
mf.c:6838: Test failed: L"multiple-streams.avi": Got hr 0x80004002, expected 0.

=== w1064v1809 (64 bit report) ===

mf:
mf.c:6807: Test failed: L"multiple-streams.avi": source resolution took 31ms

=== w10pro64_en_AE_u8 (64 bit report) ===

mf:
mf.c:6807: Test failed: L"multiple-streams.mp4": source resolution took 156ms

[Rémi Bernon]

On Wed May 10 09:19:09 2023 +0000, **** wrote:
> Marvin replied on the mailing list:
> ```
> Hi,
> It looks like your patch introduced the new failures shown below.
> Please investigate and fix them before resubmitting your patch.
> If they are not new, fixing them anyway would help a lot. Otherwise
> please ask for the known failures list to be updated.
> The tests also ran into some preexisting test failures. If you know how
> to fix them that would be helpful. See the TestBot job for the details:
> The full results can be found at:
> https://testbot.winehq.org/JobDetails.pl?Key=132558
> Your paranoid android.
> === w1064v1507 (32 bit report) ===
> mf:
> mf.c:6838: Test failed: L"multiple-streams.mp4": Got hr 0x80004002,
> expected 0.
> mf.c:6878: Test failed: L"multiple-streams.mp4": 1: "MF_SD_STREAM_NAME"
> missing, hr 0xc00d36e6
> mf.c:6878: Test failed: L"multiple-streams.mp4": 2: "MF_SD_STREAM_NAME"
> missing, hr 0xc00d36e6
> mf.c:6878: Test failed: L"multiple-streams.mp4": 4: "MF_SD_STREAM_NAME"
> missing, hr 0xc00d36e6
> mf.c:6838: Test failed: L"multiple-streams.avi": Got hr 0x80004002,
> expected 0.
> === w864 (64 bit report) ===
> mf:
> mf.c:6807: Test failed: L"multiple-streams.avi": source resolution took 46ms
> === w1064v1507 (64 bit report) ===
> mf:
> mf.c:6838: Test failed: L"multiple-streams.mp4": Got hr 0x80004002,
> expected 0.
> mf.c:6878: Test failed: L"multiple-streams.mp4": 1: "MF_SD_STREAM_NAME"
> missing, hr 0xc00d36e6
> mf.c:6878: Test failed: L"multiple-streams.mp4": 2: "MF_SD_STREAM_NAME"
> missing, hr 0xc00d36e6
> mf.c:6878: Test failed: L"multiple-streams.mp4": 4: "MF_SD_STREAM_NAME"
> missing, hr 0xc00d36e6
> mf.c:6838: Test failed: L"multiple-streams.avi": Got hr 0x80004002,
> expected 0.
> === w1064v1809 (64 bit report) ===
> mf:
> mf.c:6807: Test failed: L"multiple-streams.avi": source resolution took 31ms
> === w10pro64_en_AE_u8 (64 bit report) ===
> mf:
> mf.c:6807: Test failed: L"multiple-streams.mp4": source resolution took 156ms
> ```
> Of course this is something I was afraid, the testbot has a huge variance. I'll try to repeat the test a few times and take an average instead.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32427

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mf/tests/mf.c:
> #include "initguid.h"
>  #include "evr9.h"
>
> +DEFINE_GUID(CLSID_MPEG4ByteStreamHandler,0x271c3902,0x6095,0x4c45,0xa2,0x2f,0x20,0x09,0x18,0x16,0xee,0x9e);
> +DEFINE_GUID(CLSID_GStreamerByteStreamHandler,0x317df618,0x5e5a,0x468a,0x9f,0x15,0xd8,0x27,0xa9,0xa0,0x81,0x62);
> +
> Why do you need to create objects explicitly? Why not using the resolver?

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32428

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mf/tests/mf.c:
> +    check_interface(handler, &IID_IUnknown, TRUE);
> +    check_interface(handler, &IID_IMFAsyncCallback, FALSE);
> +
> +    hr = IMFByteStreamHandler_GetMaxNumberOfBytesRequiredForResolution(handler, &bytes);
> +    todo_wine ok(hr == S_OK, "got hr %#lx\n", hr);
> +
> +
> +    load_resource_stream(resource, &stream);
> +
> +    time -= GetTickCount();
> +    hr = IMFByteStreamHandler_BeginCreateObject(handler, stream, NULL, MF_RESOLUTION_MEDIASOURCE, NULL, NULL, callback, NULL);
> +    ok(hr == S_OK, "got hr %#lx\n", hr);
> +    wait_async_result(callback, &result);
> +    time += GetTickCount();
> +    todo_wine ok(time <= 5 || broken(time <= 20) /* testbot may be very slow */, "source resolution took %lums\n", time);
> +    ok(!!result, "got result %p\n", result);
> Do we need such test in wine? I think we usually avoid testing things that rely on timing too much.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32429

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mf/tests/mf.c:
> ok(hr == S_OK, "got hr %#lx\n", hr);
>      IMFAsyncResult_Release(result);
>
> +
> +    check_interface(tmp_unknown, &IID_IMFMediaSource, TRUE);
> +    todo_wine check_interface(tmp_unknown, &IID_IMFMediaSourceEx, has_mp4_media_source && has_video_processor /* >= w10 */);
> +    check_interface(tmp_unknown, &IID_IMFMediaEventGenerator, TRUE);
> +    check_interface(tmp_unknown, &IID_IMFGetService, TRUE);
> +
> +    check_service_interface(tmp_unknown, &MF_RATE_CONTROL_SERVICE, &IID_IMFRateControl, TRUE);
> +    check_service_interface(tmp_unknown, &MF_RATE_CONTROL_SERVICE, &IID_IMFRateSupport, TRUE);
> +    /* check_service_interface(tmp_unknown, &MF_QUALITY_SERVICES, &IID_IMFQualityAdvise, TRUE); */
> +    /* check_service_interface(tmp_unknown, &MF_METADATA_PROVIDER_SERVICE, &IID_IMFMetadataProvider, TRUE); */

What is this for?

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32430

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mf/tests/mf.c:
> +        const struct stream_desc *expect_stream = expect->streams + i;
> +        IMFMediaTypeHandler *type_handler;
> +        IMFStreamDescriptor *stream;
> +        DWORD id, type_count;
> +        BOOL selected;
> +
> +        winetest_push_context("%u", i);
> +
> +        hr = IMFPresentationDescriptor_GetStreamDescriptorByIndex(presentation, i, &selected, &stream);
> +        ok(hr == S_OK, "got hr %#lx\n", hr);
> +        todo_wine_if(!expect_stream->selected)
> +        ok(selected == expect_stream->selected, "got selected %u\n", selected);
> +        hr = IMFStreamDescriptor_GetStreamIdentifier(stream, &id);
> +        ok(hr == S_OK, "got hr %#lx\n", hr);
> +        todo_wine ok(id == expect_stream->id, "got id %lu\n", id);
> +        flaky_wine check_attributes((IMFAttributes *)stream, expect_stream->attributes, -1);
> Will it potentially stay flaky indefinitely?

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32431

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mf/tests/mf.c:
> +    ok(hr == S_OK, "got hr %#lx\n", hr);
> +
> +
> +    hr = IMFMediaSource_CreatePresentationDescriptor(media_source, &presentation);
> +    ok(hr == S_OK, "got hr %#lx\n", hr);
> +
> +    for (i = 0; i < stream_count; ++i)
> +    {
> +        IMFStreamDescriptor *stream;
> +        BOOL selected;
> +        hr = IMFPresentationDescriptor_GetStreamDescriptorByIndex(presentation, i, &selected, &stream);
> +        ok(hr == S_OK, "got hr %#lx\n", hr);
> +        if (i == 2) ok(selected, "got selected %u\n", selected);
> +        else todo_wine ok(!selected, "got selected %u\n", selected);
> +        IMFStreamDescriptor_Release(stream);
> +    }
> Going back to that other MR. Does Clone() correctly lose selections?

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32432

[Rémi Bernon]

On Wed May 10 14:11:24 2023 +0000, Nikolay Sivov wrote:
> Will it potentially stay flaky indefinitely?
> Some games expect the streams to be in a deterministic and specific order. If we want to fix them then we have to fix the flakyness.

I have some patches for that already, currently in Proton, with some intermediate step that works around wg_parser non-determinism with some stream matching heuristics. It's imperfect though, so in the end I think it means we will need a completely different backend instead of wg_parser.

The advantage would be that we could get rid of several problems inherent to the presence of Glib threads. The downsides are that we then have to rely more on MF pipeline instead of GStreamer, and afaics it's not working well yet with decoder MFTs (I believe something related to decoder MFT eating input samples without outputting anything immediately).

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32434

[Rémi Bernon]

On Wed May 10 14:11:24 2023 +0000, Nikolay Sivov wrote:
> Going back to that other MR. Does Clone() correctly lose selections?
> I'm not sure what you mean, I expect that Clone would keep the selections. Currently we select all streams in the descriptor, regardless of the start descriptor. The MR that replaced Clone with as-needed instantiation doesn't change that.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32435

[Rémi Bernon]

On Wed May 10 14:11:23 2023 +0000, Nikolay Sivov wrote:
> Do we need such test in wine? I think we usually avoid testing things
> that rely on timing too much.
> I don't know, I think it makes the behavior difference obvious, especially in this case where timing differences break applications, and it may be fixed once the resolution is done differently. It'd also make the change more future proof, and avoid silently getting some difficult to debug playback issues back.

There is some annoying variance, which I'm not sure how to address, but I think the test is worth having as it exhibit an actual application requirement.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32436

[Rémi Bernon]

On Wed May 10 14:11:22 2023 +0000, Nikolay Sivov wrote:
> Why do you need to create objects explicitly? Why not using the resolver?
> I think it adds some unnecessary level of indirection, which would add even more variance to the timing?

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32437

[Rémi Bernon]

On Wed May 10 14:11:23 2023 +0000, Nikolay Sivov wrote:
> What is this for?
> Just some basic checks about the media source implementation, and its expected interfaces. I guess they are probably tested elsewhere, but as I'm using specific classes here it was making sure every class has the same interfaces.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2782#note_32438