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cosmetic change, shift stuff around to more logical places

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17440 b3059339-0415-0410-9bf9-f77b7e298cf2
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ods15 2006-01-20 19:12:22 +00:00
parent 7c6be88fc0
commit 815c782f84
1 changed files with 24 additions and 24 deletions
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48
DOCS/tech/mpcf.txt
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@ -320,26 +320,6 @@ file:
Tag description:
----------------
forward_ptr
size of the packet data (exactly the distance from the first byte
after the forward_ptr to the first byte of the next packet)
back_ptr_div8
back_ptr = back_ptr_div8 * 8 + 7
back_ptr must point to a position within 8 bytes of a syncpoint
startcode. This syncpoint MUST be the closest syncpoint such that at
least one keyframe with a pts lower or equal to the original syncpoint's
global_key_pts for all streams lies between it and the current syncpoint.
A stream where EOR is set is to be ignored for back_ptr.
global_key_pts
After a syncpoint, last_pts of each stream is to be set to:
last_pts[i] = convert_ts(global_key_pts, timebase[stream], timebase[i])
global_key_pts MUST be bigger or equal to dts of all past frames across
all streams, and smaller or equal to pts of all future frames.
file_id_string
"nut/multimedia container\0"
@ -355,10 +335,6 @@ stream_starcode
syncpoint_startcode
0xE4ADEECA4569ULL + (((uint64_t)('N'<<8) + 'K')<<48)
syncpoint_startcodes SHOULD be placed immediately before a keyframe if the
previous frame of the same stream was a non-keyframe, unless such
non-keyframe - keyframe transitions are very frequent
index_startcode
0xDD672F23E64EULL + (((uint64_t)('N'<<8) + 'X')<<48)
@ -368,12 +344,20 @@ info_startcode
version
NUT version. The current value is 2.
forward_ptr
size of the packet data (exactly the distance from the first byte
after the forward_ptr to the first byte of the next packet)
max_distance
max distance of syncpoints, the distance may only be larger if
there is no more than a single frame between the two syncpoints. This can
be used by the demuxer to detect damaged frame headers if the damage
results in too long of a chain
syncpoints SHOULD be placed immediately before a keyframe if the
previous frame of the same stream was a non-keyframe, unless such
non-keyframe - keyframe transitions are very frequent
SHOULD be set to <=32768 or at least <=65536 unless there is a very
good reason to set it higher, otherwise reasonable error recovery will
be impossible
@ -540,6 +524,22 @@ checksum
including the checksum itself (from first byte after the
forward_ptr until last byte before the checksum).
back_ptr_div8
back_ptr = back_ptr_div8 * 8 + 7
back_ptr must point to a position within 8 bytes of a syncpoint
startcode. This syncpoint MUST be the closest syncpoint such that at
least one keyframe with a pts lower or equal to the original syncpoint's
global_key_pts for all streams lies between it and the current syncpoint.
A stream where EOR is set is to be ignored for back_ptr.
global_key_pts
After a syncpoint, last_pts of each stream is to be set to:
last_pts[i] = convert_ts(global_key_pts, timebase[stream], timebase[i])
global_key_pts MUST be bigger or equal to dts of all past frames across
all streams, and smaller or equal to pts of all future frames.
max_pts
s = max_pts % stream_count
pts = max_pts / stream_count