[PATCH 2/3] winegstreamer/video_decoder: Generate timestamps relative to the first input sample.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/winegstreamer/video_decoder.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dlls/winegstreamer/video_decoder.c b/dlls/winegstreamer/video_decoder.c
index 3e91e55a779..53d9e00b137 100644
--- a/dlls/winegstreamer/video_decoder.c
+++ b/dlls/winegstreamer/video_decoder.c
@@ -796,6 +796,10 @@ static HRESULT WINAPI transform_ProcessMessage(IMFTransform *iface, MFT_MESSAGE_
     case MFT_MESSAGE_COMMAND_FLUSH:
         return wg_transform_flush(decoder->wg_transform);

+    case MFT_MESSAGE_NOTIFY_START_OF_STREAM:
+        decoder->sample_time = -1;
+        return S_OK;
+
     default:
         FIXME("Ignoring message %#x.\n", message);
         return S_OK;
@@ -811,6 +815,9 @@ static HRESULT WINAPI transform_ProcessInput(IMFTransform *iface, DWORD id, IMFS
     if (!decoder->wg_transform)
         return MF_E_TRANSFORM_TYPE_NOT_SET;

+    if (decoder->sample_time == -1 && FAILED(IMFSample_GetSampleTime(sample, (LONGLONG *)&decoder->sample_time)))
+        decoder->sample_time = 0;
+
     return wg_transform_push_mf(decoder->wg_transform, sample, decoder->wg_sample_queue);
 }