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Timestamp specific
libavutil » Other » Constants

FFmpeg internal timebase and timestamp definitions. More...

## Macros

#define | AV_NOPTS_VALUE ((int64_t)UINT64_C(0x8000000000000000))
| Undefined timestamp value.
#define | AV_TIME_BASE 1000000
| Internal time base represented as integer.
#define | AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
| Internal time base represented as fractional value.

## Detailed Description

FFmpeg internal timebase and timestamp definitions.

## Macro Definition Documentation

## AV_NOPTS_VALUE

#define AV_NOPTS_VALUE ((int64_t)UINT64_C(0x8000000000000000))

Undefined timestamp value.

Usually reported by demuxer that work on containers that do not provide either pts or dts.

Examples
  decode_audio.c, decode_filter_video.c, decode_video.c, and transcode.c.

Definition at line 248 of file avutil.h.

## AV_TIME_BASE

#define AV_TIME_BASE 1000000

Internal time base represented as integer.

Definition at line 254 of file avutil.h.

## AV_TIME_BASE_Q

#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}

Internal time base represented as fractional value.

Examples
  decode_filter_video.c.

Definition at line 264 of file avutil.h.