Ticket #7619: t7619_h264_parse_unknown.diff

libs/libmythtv/avformatdecoder.cpp

@@ -2634 +2634 @@
     const uint8_t  *buf     = pkt->data;
     const uint8_t  *buf_end = pkt->data + pkt->size;
     bool on_frame = false;
+    bool state_changed = false;
 
     // crude NAL unit vs Annex B detection.
     // the parser only understands Annex B
@@ -2659 +2660 @@
 
         if (m_h264_parser->stateChanged())
         {
+            state_changed = true;
             if (m_h264_parser->FieldType() != H264Parser::FIELD_BOTTOM)
             {
                 if (m_h264_parser->onFrameStart())
@@ -2725 +2727 @@
         pkt->flags |= PKT_FLAG_KEY;
     }
 
-    return on_frame;
+    return on_frame || !state_changed;
 }
 
 /** \fn AvFormatDecoder::ProcessVBIDataPacket(const AVStream*, const AVPacket*)