webmdec: Fix read_frame return value for calls after EOS

webm_read_frame assumes that it won't be called once end of file
is reached. But for frame parallel mode that turns out to be not
true. this patch fixes that behavior by checking for EOS and
returning the appropriate value for subsequent calls.

Change-Id: Ie2fddbe00493a0f96c4172c67be1eb719f0fe8ed

1 files changed, 1 insertions, 0 deletions

diff --git a/webmdec.h b/webmdec.h
index 1cd35d41a..7d1638035 100644
--- a/webmdec.h
+++ b/webmdec.h
@@ -29,6 +29,7 @@ struct WebmInputContext {
   int video_track_index;
   uint64_t timestamp_ns;
   int is_key_frame;
+  int reached_eos;
 };
 
 // Checks if the input is a WebM file. If so, initializes WebMInputContext so