Author: ods15 Date: Tue Oct 31 16:58:40 2006 New Revision: 173 Modified: trunk/docs/nut-english.txt Log: add EOR Modified: trunk/docs/nut-english.txt ============================================================================== --- trunk/docs/nut-english.txt (original) +++ trunk/docs/nut-english.txt Tue Oct 31 16:58:40 2006 @@ -255,6 +255,17 @@ syncpoint is 16 bytes: 8 startcode + 1 forward_ptr + 1 timestamp + 1 back_ptr + 4 checksum + 1 frame_code +End of Relevance +EOR is a flag that can be attributed to a frame in any stream, and marks +the end of relavence of a stream on presentation, such as a subtitle +stream currently showing no subtitles on screen. EOR flag can only be +given to zero byte frames, and must be set as keyframe as well. Once EOR +is seen on such a stream, the stream is set EOR until the next keyframe on +that stream. Streams which are set EOR are ignored by back_ptr in +syncpoints until EOR is unset. The significance of EOR is to set the +stream as irrelevant when seeking and searching for optimal keyframes to +begin demuxing. + Error Checking There are several ways to detect a damaged stream in NUT during demuxing: