[PATCH] mfreadwrite/reader: Alternate between selected streams for MF_SOURCE_READER_ANY_STREAM requests.
Signed-off-by: Nikolay Sivov nsivov@codeweavers.com --- dlls/mfreadwrite/reader.c | 68 ++++++++++++++------------------- dlls/mfreadwrite/tests/mfplat.c | 10 ++--- 2 files changed, 32 insertions(+), 46 deletions(-)
diff --git a/dlls/mfreadwrite/reader.c b/dlls/mfreadwrite/reader.c index cc1b29a2b6a..7aa8f65df7a 100644 --- a/dlls/mfreadwrite/reader.c +++ b/dlls/mfreadwrite/reader.c @@ -101,7 +101,6 @@ enum media_stream_flags STREAM_FLAG_SAMPLE_REQUESTED = 0x1, /* Protects from making multiple sample requests. */ STREAM_FLAG_SELECTED = 0x2, /* Mirrors descriptor, used to simplify tests when starting the source. */ STREAM_FLAG_PRESENTED = 0x4, /* Set if stream was selected last time Start() was called. */ - STREAM_FLAG_REQUESTED_ONCE = 0x8, /* Used for MF_SOURCE_READER_ANY_STREAM in synchronous mode. */ };
struct media_stream @@ -109,7 +108,7 @@ struct media_stream IMFMediaStream *stream; IMFMediaType *current; IMFTransform *decoder; - DWORD id; + unsigned int id; unsigned int index; enum media_stream_state state; unsigned int flags; @@ -169,13 +168,14 @@ struct source_reader LONG refcount; IMFMediaSource *source; IMFPresentationDescriptor *descriptor; - DWORD first_audio_stream_index; - DWORD first_video_stream_index; IMFSourceReaderCallback *async_callback; + unsigned int first_audio_stream_index; + unsigned int first_video_stream_index; + unsigned int last_read_index; + unsigned int stream_count; unsigned int flags; enum media_source_state source_state; struct media_stream *streams; - DWORD stream_count; struct list responses; CRITICAL_SECTION cs; CONDITION_VARIABLE sample_event; @@ -393,7 +393,7 @@ static HRESULT source_reader_request_sample(struct source_reader *reader, struct WARN("Sample request failed, hr %#x.\n", hr); else { - stream->flags |= (STREAM_FLAG_SAMPLE_REQUESTED | STREAM_FLAG_REQUESTED_ONCE); + stream->flags |= STREAM_FLAG_SAMPLE_REQUESTED; } }
@@ -988,39 +988,42 @@ static BOOL source_reader_get_read_result(struct source_reader *reader, struct m return !request_sample; }
-static HRESULT source_reader_get_first_selected_stream(struct source_reader *reader, unsigned int flags, - unsigned int *stream_index) +static HRESULT source_reader_get_next_selected_stream(struct source_reader *reader, unsigned int *stream_index) { - unsigned int i, first_selected = ~0u; + unsigned int i, start_idx, stop_idx, first_selected = ~0u, requests = ~0u; BOOL selected, stream_drained;
- for (i = 0; i < reader->stream_count; ++i) + start_idx = (reader->last_read_index + 1) % reader->stream_count; + stop_idx = reader->last_read_index == ~0u ? reader->stream_count : reader->last_read_index; + + for (i = start_idx; i < reader->stream_count && i != stop_idx; i = (i + 1) % (reader->stream_count + 1)) { stream_drained = reader->streams[i].state == STREAM_STATE_EOS && !reader->streams[i].responses; selected = SUCCEEDED(source_reader_get_stream_selection(reader, i, &selected)) && selected;
- if (selected && !(reader->streams[i].flags & flags)) + if (selected) { if (first_selected == ~0u) first_selected = i;
- if (!stream_drained) + /* Try to balance pending reads. */ + if (!stream_drained && reader->streams[i].requests < requests) { + requests = reader->streams[i].requests; *stream_index = i; - break; } } }
- /* If all selected streams reached EOS, use first selected. This fallback only applies after reader went through all - selected streams once. */ - if (i == reader->stream_count && first_selected != ~0u && !flags) + /* If all selected streams reached EOS, use first selected. */ + if (first_selected != ~0u) { - *stream_index = first_selected; - i = first_selected; + if (requests == ~0u) + *stream_index = first_selected; + reader->last_read_index = *stream_index; }
- return i == reader->stream_count ? MF_E_MEDIA_SOURCE_NO_STREAMS_SELECTED : S_OK; + return first_selected == ~0u ? MF_E_MEDIA_SOURCE_NO_STREAMS_SELECTED : S_OK; }
static HRESULT source_reader_get_stream_read_index(struct source_reader *reader, unsigned int index, unsigned int *stream_index) @@ -1037,18 +1040,7 @@ static HRESULT source_reader_get_stream_read_index(struct source_reader *reader, *stream_index = reader->first_audio_stream_index; break; case MF_SOURCE_READER_ANY_STREAM: - if (reader->async_callback) - { - /* Pick first selected stream. */ - hr = source_reader_get_first_selected_stream(reader, 0, stream_index); - } - else - { - /* Cycle through all selected streams once, next pick first selected. */ - if (FAILED(hr = source_reader_get_first_selected_stream(reader, STREAM_FLAG_REQUESTED_ONCE, stream_index))) - hr = source_reader_get_first_selected_stream(reader, 0, stream_index); - } - return hr; + return source_reader_get_next_selected_stream(reader, stream_index); default: *stream_index = index; } @@ -1339,8 +1331,7 @@ static HRESULT WINAPI src_reader_SetStreamSelection(IMFSourceReader *iface, DWOR if (!selection_changed) { source_reader_get_stream_selection(reader, i, &selected); - if (selected ^ selection) - selection_changed = TRUE; + selection_changed = !!(selected ^ selection); }
if (selection) @@ -1364,8 +1355,7 @@ static HRESULT WINAPI src_reader_SetStreamSelection(IMFSourceReader *iface, DWOR }
source_reader_get_stream_selection(reader, index, &selected); - if (selected ^ selection) - selection_changed = TRUE; + selection_changed = !!(selected ^ selection);
if (selection) hr = IMFPresentationDescriptor_SelectStream(reader->descriptor, index); @@ -1373,11 +1363,8 @@ static HRESULT WINAPI src_reader_SetStreamSelection(IMFSourceReader *iface, DWOR hr = IMFPresentationDescriptor_DeselectStream(reader->descriptor, index); }
- if (SUCCEEDED(hr) && selection_changed) - { - for (i = 0; i < reader->stream_count; ++i) - reader->streams[i].flags &= ~STREAM_FLAG_REQUESTED_ONCE; - } + if (selection_changed) + reader->last_read_index = ~0u;
LeaveCriticalSection(&reader->cs);
@@ -2135,6 +2122,7 @@ static HRESULT create_source_reader_from_source(IMFMediaSource *source, IMFAttri /* At least one major type has to be set. */ object->first_audio_stream_index = reader_get_first_stream_index(object->descriptor, &MFMediaType_Audio); object->first_video_stream_index = reader_get_first_stream_index(object->descriptor, &MFMediaType_Video); + object->last_read_index = ~0u;
if (object->first_audio_stream_index == MF_SOURCE_READER_INVALID_STREAM_INDEX && object->first_video_stream_index == MF_SOURCE_READER_INVALID_STREAM_INDEX) diff --git a/dlls/mfreadwrite/tests/mfplat.c b/dlls/mfreadwrite/tests/mfplat.c index 2a6e3a1cc36..8455ac64688 100644 --- a/dlls/mfreadwrite/tests/mfplat.c +++ b/dlls/mfreadwrite/tests/mfplat.c @@ -886,13 +886,12 @@ static void test_source_reader_from_media_source(void) hr = IMFSourceReader_SetStreamSelection(reader, 2, TRUE); ok(hr == S_OK, "Failed to select a stream, hr %#x.\n", hr);
- for (i = 0; i < 2 * TEST_SOURCE_NUM_STREAMS; ++i) + for (i = 0; i < TEST_SOURCE_NUM_STREAMS + 1; ++i) { hr = IMFSourceReader_ReadSample(reader, MF_SOURCE_READER_ANY_STREAM, 0, &actual_index, &stream_flags, ×tamp, &sample); ok(hr == S_OK, "Failed to get a sample, hr %#x.\n", hr); - ok(actual_index == (i < TEST_SOURCE_NUM_STREAMS ? i : 0), "%d: Unexpected stream index %u\n", - i, actual_index); + ok(actual_index == i % TEST_SOURCE_NUM_STREAMS, "%d: Unexpected stream index %u\n", i, actual_index); ok(!stream_flags, "Unexpected stream flags %#x.\n", stream_flags); ok(timestamp == 123, "Unexpected timestamp.\n"); ok(!!sample, "Expected sample object.\n"); @@ -905,13 +904,12 @@ static void test_source_reader_from_media_source(void) hr = IMFSourceReader_SetStreamSelection(reader, 0, TRUE); ok(hr == S_OK, "Failed to select a stream, hr %#x.\n", hr);
- for (i = 0; i < 2 * TEST_SOURCE_NUM_STREAMS; ++i) + for (i = 0; i < TEST_SOURCE_NUM_STREAMS + 1; ++i) { hr = IMFSourceReader_ReadSample(reader, MF_SOURCE_READER_ANY_STREAM, 0, &actual_index, &stream_flags, ×tamp, &sample); ok(hr == S_OK, "Failed to get a sample, hr %#x.\n", hr); - ok(actual_index == (i < TEST_SOURCE_NUM_STREAMS ? i : 0), "%d: Unexpected stream index %u\n", - i, actual_index); + ok(actual_index == i % TEST_SOURCE_NUM_STREAMS, "%d: Unexpected stream index %u\n", i, actual_index); ok(!stream_flags, "Unexpected stream flags %#x.\n", stream_flags); ok(timestamp == 123, "Unexpected timestamp.\n"); ok(!!sample, "Expected sample object.\n");
-
Nikolay Sivov