diff options
Diffstat (limited to 'DOCS/tech/mpcf.txt')
| -rw-r--r-- | DOCS/tech/mpcf.txt | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/DOCS/tech/mpcf.txt b/DOCS/tech/mpcf.txt index 65ea4e988c..63fbfc0a30 100644 --- a/DOCS/tech/mpcf.txt +++ b/DOCS/tech/mpcf.txt @@ -1,4 +1,5 @@ - nut format draft 0.02 + NUT Open Container Format DRAFT 20030906 + ---------------------------------------- @@ -114,7 +115,6 @@ video_stream_header: sample_width v sample_height v colorspace_type v - depth v reserved_bytes checksum u(32) @@ -227,10 +227,10 @@ version 0 for now file_size - size in bytes, can be 0 if not meaningfull (realtime streams, ...) + size in bytes. 0 invalidates the field length_in_msec - length of the file in milli seconds (can be 0 if realtime or such) + length of the file in milli seconds (0 invalidates the field) stream_id Note: streams with a lower relative class MUST have a lower relative id @@ -248,9 +248,9 @@ stream_class fourcc identification for the codec example: "H264" - MUST contain 4 bytes, note, this might be increased in the future if - needed - + MUST contain 2 or 4 bytes, note, this might be increased in the future + if needed + language_code ISO 639 and ISO 3166 for language/country code something like "usen" (US english), can be 0 @@ -289,7 +289,7 @@ index_flag Note, all streams SHOULD have an index codec_specific_data_type - 0 end + 0 none/end 1 native 2 bitmapinfoheader 3 waveformatex @@ -371,9 +371,6 @@ sample_width/sample_height (aspect ratio) sample_width and sample_height MUST be relative prime if not zero MUST be 0 if unknown -depth - for compatibility with some win32 codecs - colorspace_type 0 unknown 1 ITU Rec 624 / ITU Rec 601 Y range: 16..235 Cb/Cr range: 16..240 @@ -494,6 +491,7 @@ 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 BEFORE keyframes headers MUST be repeated at least twice (so they exist 3 times in a file) Index |