21 #ifndef AVUTIL_AVUTIL_H 22 #define AVUTIL_AVUTIL_H 205 #define FF_LAMBDA_SHIFT 7 206 #define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT) 207 #define FF_QP2LAMBDA 118 208 #define FF_LAMBDA_MAX (256*128-1) 210 #define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove 228 #define AV_NOPTS_VALUE INT64_C(0x8000000000000000) 234 #define AV_TIME_BASE 1000000 240 #define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
const char * avutil_configuration(void)
Return the libavutil build-time configuration.
Opaque data information usually continuous.
char av_get_picture_type_char(enum AVPictureType pict_type)
Return a single letter to describe the given picture type pict_type.
Utility Preprocessor macros.
unsigned avutil_version(void)
Return the LIBAVUTIL_VERSION_INT constant.
Libavutil version macros.
Usually treated as AVMEDIA_TYPE_DATA.
Opaque data information usually sparse.
const char * avutil_license(void)
Return the libavutil license.
rational number numerator/denominator
AVRational av_get_time_base_q(void)
Return the fractional representation of the internal time base.