Timecode helpers. More...
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Functions | |
int | avpriv_framenum_to_drop_timecode (int frame_num) |
Adjust frame number for NTSC drop frame time code. | |
uint32_t | avpriv_framenum_to_smpte_timecode (unsigned frame, int fps, int drop) |
Convert frame id (timecode) to SMPTE 12M binary representation. | |
int | avpriv_check_timecode_rate (void *avcl, AVRational rate, int drop) |
Check if timecode rate is valid and consistent with the drop flag. | |
char * | avpriv_timecode_to_string (char *buf, const struct ff_timecode *tc, unsigned frame) |
Load timecode string in buf. | |
int | avpriv_init_smpte_timecode (void *avcl, struct ff_timecode *tc) |
Parse SMTPE 12M time representation (hh:mm:ss[:;. |
Timecode helpers.
Definition in file timecode.c.
int avpriv_check_timecode_rate | ( | void * | avcl, |
AVRational | rate, | ||
int | drop | ||
) |
Check if timecode rate is valid and consistent with the drop flag.
Definition at line 58 of file timecode.c.
Referenced by avpriv_init_smpte_timecode(), and parse_timecode_in_framenum_format().
int avpriv_framenum_to_drop_timecode | ( | int | frame_num | ) |
Adjust frame number for NTSC drop frame time code.
frame_num | Actual frame number to adjust |
Definition at line 31 of file timecode.c.
Referenced by avpriv_timecode_to_string(), dv_write_pack(), mpeg1_encode_sequence_header(), and mxf_write_system_item().
uint32_t avpriv_framenum_to_smpte_timecode | ( | unsigned | frame, |
int | fps, | ||
int | drop | ||
) |
Convert frame id (timecode) to SMPTE 12M binary representation.
Definition at line 40 of file timecode.c.
Referenced by dv_write_pack(), and mxf_write_system_item().
int avpriv_init_smpte_timecode | ( | void * | avcl, |
struct ff_timecode * | tc | ||
) |
Parse SMTPE 12M time representation (hh:mm:ss[:;.
]ff). str and rate fields from tc struct must be set.
avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct (used for av_log). |
tc | Timecode struct pointer |
Definition at line 104 of file timecode.c.
Referenced by dv_write_header(), encode_init(), init(), and mxf_write_header().
char* avpriv_timecode_to_string | ( | char * | buf, |
const struct ff_timecode * | tc, | ||
unsigned | frame | ||
) |
Load timecode string in buf.
buf | Destination buffer |
tc | Timecode struct pointer |
frame | Frame id (timecode frame is computed with tc->start+frame) |
Definition at line 82 of file timecode.c.
Referenced by draw_text(), and parse_timecode_in_framenum_format().