diff --git a/dlls/mf/tests/mf_test.h b/dlls/mf/tests/mf_test.h
index 05aa34e3d28..e48204224b4 100644
--- a/dlls/mf/tests/mf_test.h
+++ b/dlls/mf/tests/mf_test.h
@@ -95,7 +95,6 @@ struct sample_desc
     DWORD repeat_count;
     BOOL todo_length;
     BOOL todo_duration;
-    LONGLONG todo_time;
 };
 
 #define check_mf_sample_collection(a, b, c) check_mf_sample_collection_(__FILE__, __LINE__, a, b, c)
diff --git a/dlls/mf/tests/transform.c b/dlls/mf/tests/transform.c
index 04c59bbdffc..c7b001bfb11 100644
--- a/dlls/mf/tests/transform.c
+++ b/dlls/mf/tests/transform.c
@@ -1205,7 +1205,6 @@ static DWORD check_mf_sample_(const char *file, int line, IMFSample *sample, con
     timestamp = 0xdeadbeef;
     hr = IMFSample_GetSampleTime(sample, &timestamp);
     ok_(file, line)(hr == S_OK, "GetSampleTime returned %#lx\n", hr);
-    todo_wine_if(expect->todo_time && (timestamp == expect->todo_time || expect->todo_time == -1))
     ok_(file, line)(llabs(timestamp - expect->sample_time) <= 50,
             "got sample time %I64d\n", timestamp);
 
@@ -3711,7 +3710,7 @@ static void test_h264_decoder(void)
     const struct sample_desc expect_output_sample_i420 =
     {
         .attributes = output_sample_attributes,
-        .sample_time = 333667, .sample_duration = 333667, .todo_time = 1334666 /* with VA-API */,
+        .sample_time = 333667, .sample_duration = 333667,
         .buffer_count = 1, .buffers = &output_buffer_desc_i420,
     };
 
@@ -4037,26 +4036,13 @@ static void test_h264_decoder_concat_streams(void)
         {
             .attributes = output_sample_attributes + 0,
             .sample_time = 0, .sample_duration = 400000,
-            .todo_duration = 333666,
-            .buffer_count = 1, .buffers = output_buffer_desc + 0,
-        },
-        {
-            .attributes = output_sample_attributes + 0,
-            .sample_time = 400000, .sample_duration = 400000,
-            .buffer_count = 1, .buffers = output_buffer_desc + 0, .repeat_count = 26,
-            .todo_time = -1, .todo_duration = 333666,
-        },
-        {
-            .attributes = output_sample_attributes + 0,
-            .sample_time = 11200000, .sample_duration = 400000,
-            .buffer_count = 1, .buffers = output_buffer_desc + 0, .repeat_count = 1,
-            .todo_time = -1, .todo_duration = 333666,
+            .buffer_count = 1, .buffers = output_buffer_desc + 0, .repeat_count = 29,
         },
         {
             .attributes = output_sample_attributes + 0,
             .sample_time = 12000000, .sample_duration = 400000,
             .buffer_count = 1, .buffers = output_buffer_desc + 2, .repeat_count = 29,
-            .todo_time = -1, .todo_duration = 333666, .todo_length = TRUE,
+            .todo_length = TRUE,
         },
         {
             .attributes = output_sample_attributes + 0,
diff --git a/dlls/winegstreamer/h264_decoder.c b/dlls/winegstreamer/h264_decoder.c
index 8eeeb52fd60..97289f69a4d 100644
--- a/dlls/winegstreamer/h264_decoder.c
+++ b/dlls/winegstreamer/h264_decoder.c
@@ -53,6 +53,7 @@ struct h264_decoder
     IMFAttributes *attributes;
     IMFAttributes *output_attributes;
 
+    UINT64 sample_time;
     IMFMediaType *input_type;
     MFT_INPUT_STREAM_INFO input_info;
     IMFMediaType *output_type;
@@ -700,8 +701,9 @@ static HRESULT WINAPI transform_ProcessOutput(IMFTransform *iface, DWORD flags,
     struct h264_decoder *decoder = impl_from_IMFTransform(iface);
     struct wg_format wg_format;
     UINT32 sample_size;
+    LONGLONG duration;
     IMFSample *sample;
-    UINT64 frame_size;
+    UINT64 frame_size, frame_rate;
     GUID subtype;
     DWORD size;
     HRESULT hr;
@@ -748,8 +750,20 @@ static HRESULT WINAPI transform_ProcessOutput(IMFTransform *iface, DWORD flags,
 
     if (SUCCEEDED(hr = wg_transform_read_mf(decoder->wg_transform, sample,
             sample_size, &wg_format, &samples->dwStatus)))
+    {
         wg_sample_queue_flush(decoder->wg_sample_queue, false);
 
+        if (FAILED(IMFMediaType_GetUINT64(decoder->input_type, &MF_MT_FRAME_RATE, &frame_rate)))
+            frame_rate = (UINT64)30000 << 32 | 1001;
+
+        duration = (UINT64)10000000 * (UINT32)frame_rate / (frame_rate >> 32);
+        if (FAILED(IMFSample_SetSampleTime(sample, decoder->sample_time)))
+            WARN("Failed to set sample time\n");
+        if (FAILED(IMFSample_SetSampleDuration(sample, duration)))
+            WARN("Failed to set sample duration\n");
+        decoder->sample_time += duration;
+    }
+
     if (hr == MF_E_TRANSFORM_STREAM_CHANGE)
     {
         samples[0].dwStatus |= MFT_OUTPUT_DATA_BUFFER_FORMAT_CHANGE;
diff --git a/dlls/winegstreamer/wg_transform.c b/dlls/winegstreamer/wg_transform.c
index 559e8f976d2..d0f94ed7649 100644
--- a/dlls/winegstreamer/wg_transform.c
+++ b/dlls/winegstreamer/wg_transform.c
@@ -342,9 +342,6 @@ NTSTATUS wg_transform_create(void *args)
              */
             transform->input_max_length = 16;
             transform->output_plane_align = 15;
-            if (!(element = create_element("h264parse", "base"))
-                    || !append_element(transform->container, element, &first, &last))
-                goto out;
             /* fallthrough */
         case WG_MAJOR_TYPE_AUDIO_MPEG1:
         case WG_MAJOR_TYPE_AUDIO_MPEG4: