diff options
author | 2003-02-07 09:48:06 +0000 | |
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committer | 2003-02-07 09:48:06 +0000 | |
commit | 1de44c5cde45b64453fda54ece10516392bc5c5f (patch) | |
tree | c7ad80fdc1a68e730efda55b85a160802522a909 | |
parent | 40aaadd9f80be7879bfbcd8a646b031cb9d3a98c (diff) |
some typos
info_header -> info_packet
adding variable sized reserved_bytes where i forgot it
start/end time in the info_packet
stuffing_packet
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9311 b3059339-0415-0410-9bf9-f77b7e298cf2
-rw-r--r-- | DOCS/tech/mpcf.txt | 46 |
1 files changed, 38 insertions, 8 deletions
diff --git a/DOCS/tech/mpcf.txt b/DOCS/tech/mpcf.txt index 650582c0ed..b1fbec9e8e 100644 --- a/DOCS/tech/mpcf.txt +++ b/DOCS/tech/mpcf.txt @@ -72,7 +72,7 @@ main header: version v stream_count v file_size v - length_in msec v + length_in_msec v reserved_bytes checksum u(32) @@ -144,18 +144,27 @@ Index: index_timestamp v index_position v } + reserved_bytes checksum u(32) -info_header: (optional) +info_packet: (optional) packet header info_startcode f(64) + start_time v + end_time v entry_count v for(i=0; i<entry_count; i++){ name sz value sz } + reserved_bytes checksum u(32) - + +stuffing_packet: (optional) + packet_header + stuffing_startcode f(64) + for(i=0; i<forward_ptr - length_of_non_reserved; i++) + stuffing f(8) forward_ptr backward_ptr @@ -281,6 +290,10 @@ index_position position in bytes of the first byte of the keyframe header, relative to the last index_position +start_time, stop_time + the time range in msecs to which the info applies + Note: can be used to mark chapters + name the name of the info entry, valid names are "Author","Description","Copyright","Encoder","Title" @@ -289,7 +302,8 @@ name value - +stuffing + 0xFF Structure: @@ -307,11 +321,27 @@ headers may be repated, but if they are then they MUST all be repeated together and repeated headers MUST be identical headers MUST be repeated every 10sec at least ? FIXME +headers MUST be repeated at least twice (so they exist 3 times in a file) + + Index +the index can be repeated but there MUST be at least one at the end + + Info packets +the info_packet can be repeated, it can also contain different names & values +each time but only if allso the time is different +Info packets can be used to describe the file or some part of it (chapters) + +info packets, SHOULD be placed at the begin of the file at least +for realtime streaming info packets will normally be transmitted when they apply +for example, the current song title & artist of the currently shown music video + + Stuffing packets +can be used as a filler, for example to leave some empty space at the begin for +a copy of the index + + Unknown packets +MUST be ignored by the decoder -the info_header can be repeated, it can also contain different names & values -each time - - Sample code (GPL, & untested) typedef BufferContext{ |