diff options
Diffstat (limited to 'DOCS/tech/mpcf.txt')
| -rw-r--r-- | DOCS/tech/mpcf.txt | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/DOCS/tech/mpcf.txt b/DOCS/tech/mpcf.txt index ec1d6ae7d4..c3a6b25ad8 100644 --- a/DOCS/tech/mpcf.txt +++ b/DOCS/tech/mpcf.txt @@ -85,7 +85,8 @@ stream_header: fourcc v average_bitrate v language_code v - time_base v + time_base_nom v + time_base_denom v lsb_timestamp_length v fixed_fps u(1) codec_specific_header_flag u(1) @@ -191,10 +192,17 @@ language_code something like 'u'<<24 + 's'<<16 + 'e'<<8 + 'n' (US english), can be 0 if unknown -time_base +time_base_nom / time_base_denom = time_base the number of timer ticks per second, this MUST be equal to the fps if the fixed_fps is 1 - MUST be < 2^15 + time_base_denom MUST not be 0 + time_base_nom and time_base_denom MUST be relative prime + time_base_nom MUST be < 2^15 + examples: + fps time_base_nom time_base_denom + 30 30 1 + 29.97 30000 1001 + 23.976 24000 1001 lsb_timestamp_length length in bits of the lsb_timestamp |