[v3 PATCH 3/5] mfreadwrite: Abort ReadSample when unable to request any samples.

[Nikolay Sivov]

From: Derek Lesho <dlesho(a)codeweavers.com>

Signed-off-by: Derek Lesho <dlesho(a)codeweavers.com>
Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com>
---

v3: removed reset of actual index, will send some tests later for that
(currently blocked by mfplat fix preventing first stream detection).

 dlls/mfreadwrite/reader.c       | 13 ++++++++++---
 dlls/mfreadwrite/tests/mfplat.c | 26 ++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/dlls/mfreadwrite/reader.c b/dlls/mfreadwrite/reader.c
index 96a82b798ab..cc1b29a2b6a 100644
--- a/dlls/mfreadwrite/reader.c
+++ b/dlls/mfreadwrite/reader.c
@@ -439,7 +439,8 @@ static HRESULT source_reader_new_stream_handler(struct source_reader *reader, IM
                 }
 
                 if (reader->streams[i].requests)
-                    source_reader_request_sample(reader, &reader->streams[i]);
+                    if (FAILED(source_reader_request_sample(reader, &reader->streams[i])))
+                        WakeAllConditionVariable(&reader->sample_event);
             }
             break;
         }
@@ -1780,10 +1781,16 @@ static HRESULT source_reader_read_sample(struct source_reader *reader, DWORD ind
                     stream->requests++;
                     if (FAILED(hr = source_reader_request_sample(reader, stream)))
                         WARN("Failed to request a sample, hr %#x.\n", hr);
+                    if (stream->stream && !(stream->flags & STREAM_FLAG_SAMPLE_REQUESTED))
+                    {
+                        *stream_flags = MF_SOURCE_READERF_ERROR;
+                        *timestamp = 0;
+                        break;
+                    }
                     SleepConditionVariableCS(&reader->sample_event, &reader->cs, INFINITE);
                 }
-
-                source_reader_get_read_result(reader, stream, flags, &hr, actual_index, stream_flags,
+                if (SUCCEEDED(hr))
+                    source_reader_get_read_result(reader, stream, flags, &hr, actual_index, stream_flags,
                        timestamp, sample);
             }
         }
diff --git a/dlls/mfreadwrite/tests/mfplat.c b/dlls/mfreadwrite/tests/mfplat.c
index cfe68cb6736..0e5053f905f 100644
--- a/dlls/mfreadwrite/tests/mfplat.c
+++ b/dlls/mfreadwrite/tests/mfplat.c
@@ -158,6 +158,8 @@ static HRESULT WINAPI test_media_stream_GetStreamDescriptor(IMFMediaStream *ifac
     return S_OK;
 }
 
+static BOOL fail_request_sample;
+
 static HRESULT WINAPI test_media_stream_RequestSample(IMFMediaStream *iface, IUnknown *token)
 {
     struct test_media_stream *stream = impl_from_IMFMediaStream(iface);
@@ -165,6 +167,9 @@ static HRESULT WINAPI test_media_stream_RequestSample(IMFMediaStream *iface, IUn
     IMFSample *sample;
     HRESULT hr;
 
+    if (fail_request_sample)
+        return E_NOTIMPL;
+
     hr = MFCreateSample(&sample);
     ok(hr == S_OK, "Failed to create a sample, hr %#x.\n", hr);
     hr = IMFSample_SetSampleTime(sample, 123);
@@ -977,6 +982,27 @@ static void test_source_reader_from_media_source(void)
     ok(hr == MF_E_NOTACCEPTING, "Unexpected hr %#x.\n", hr);
 
     IMFSourceReader_Release(reader);
+    IMFMediaSource_Release(source);
+
+    /* RequestSample failure. */
+    source = create_test_source();
+    ok(!!source, "Failed to create test source.\n");
+
+    fail_request_sample = TRUE;
+
+    hr = MFCreateSourceReaderFromMediaSource(source, NULL, &reader);
+    ok(hr == S_OK, "Failed to create source reader, hr %#x.\n", hr);
+
+    hr = IMFSourceReader_SetStreamSelection(reader, 0, TRUE);
+    ok(hr == S_OK, "Failed to select a stream, hr %#x.\n", hr);
+
+    hr = IMFSourceReader_ReadSample(reader, 0, 0, &actual_index, &stream_flags, ×tamp, &sample);
+    ok(hr == E_NOTIMPL, "Unexpected ReadSample result, hr %#x.\n", hr);
+
+    IMFSourceReader_Release(reader);
+    IMFMediaSource_Release(source);
+
+    fail_request_sample = FALSE;
 }
 
 START_TEST(mfplat)
-- 
2.28.0