[PATCH v6 2/6] winegstreamer: Use end of previous frame if the current frame doesn't have a timestamp.

[Alfred Agrell]

From: Alfred Agrell

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56698
---
 dlls/winegstreamer/wg_parser.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/dlls/winegstreamer/wg_parser.c b/dlls/winegstreamer/wg_parser.c
index 431a8b74cb2..35e155224ba 100644
--- a/dlls/winegstreamer/wg_parser.c
+++ b/dlls/winegstreamer/wg_parser.c
@@ -117,6 +117,7 @@ struct wg_parser_stream

bool flushing, eos, enabled, has_tags, has_buffer, no_more_pads;

+    uint64_t prev_presentation_end;
     uint64_t duration;
     gchar *tags[WG_PARSER_TAG_COUNT];
 };
@@ -371,6 +372,14 @@ static NTSTATUS wg_parser_stream_get_buffer(void *args)
         wg_buffer->pts = GST_BUFFER_PTS(buffer) / 100;
     if ((wg_buffer->has_duration = GST_BUFFER_DURATION_IS_VALID(buffer)))
         wg_buffer->duration = GST_BUFFER_DURATION(buffer) / 100;
+    if (wg_buffer->has_duration && !wg_buffer->has_pts && stream->prev_presentation_end)
+    {
+        wg_buffer->has_pts = true;
+        wg_buffer->pts = stream->prev_presentation_end;
+        stream->prev_presentation_end = wg_buffer->pts + wg_buffer->duration;
+    }
+    if (wg_buffer->has_duration && wg_buffer->has_pts)
+        stream->prev_presentation_end = wg_buffer->pts + wg_buffer->duration;
     wg_buffer->discontinuity = GST_BUFFER_FLAG_IS_SET(buffer, GST_BUFFER_FLAG_DISCONT);
     wg_buffer->preroll = GST_BUFFER_FLAG_IS_SET(buffer, GST_BUFFER_FLAG_LIVE);
     wg_buffer->delta = GST_BUFFER_FLAG_IS_SET(buffer, GST_BUFFER_FLAG_DELTA_UNIT);