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avformat/hlsenc: use AV_OPT_TYPE_DURATION

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Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
This commit is contained in:
Limin Wang 2021-01-17 09:07:28 +08:00
parent 3c41d0bfd6
commit 38caef3876
2 changed files with 20 additions and 13 deletions
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15
doc/muxers.texi
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@ -609,14 +609,21 @@ segmentation.
This muxer supports the following options:
@table @option
@item hls_init_time @var{seconds}
Set the initial target segment length in seconds. Default value is @var{0}.
@item hls_init_time @var{duration}
Set the initial target segment length. Default value is @var{0}.
@var{duration} must be a time duration specification,
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
Segment will be cut on the next key frame after this time has passed on the first m3u8 list.
After the initial playlist is filled @command{ffmpeg} will cut segments
at duration equal to @code{hls_time}
@item hls_time @var{seconds}
Set the target segment length in seconds. Default value is 2.
@item hls_time @var{duration}
Set the target segment length. Default value is 2.
@var{duration} must be a time duration specification,
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
Segment will be cut on the next key frame after this time has passed.
@item hls_list_size @var{size}

18
libavformat/hlsenc.c
View File

@ -196,8 +196,8 @@ typedef struct HLSContext {
int64_t start_sequence;
uint32_t start_sequence_source_type; // enum StartSequenceSourceType
float time; // Set by a private option.
float init_time; // Set by a private option.
int64_t time; // Set by a private option.
int64_t init_time; // Set by a private option.
int max_nb_segments; // Set by a private option.
int hls_delete_threshold; // Set by a private option.
#if FF_API_HLS_WRAP
@ -2458,9 +2458,9 @@ static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
/* reset end_pts, hls->recording_time at end of the init hls list */
int64_t init_list_dur = hls->init_time * vs->nb_entries * AV_TIME_BASE;
int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries) * (hls->time * AV_TIME_BASE);
hls->recording_time = hls->time * AV_TIME_BASE;
int64_t init_list_dur = hls->init_time * vs->nb_entries;
int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries) * hls->time;
hls->recording_time = hls->time;
end_pts = init_list_dur + after_init_list_dur ;
}
@ -2945,7 +2945,7 @@ static int hls_init(AVFormatContext *s)
av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
}
hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
hls->recording_time = hls->init_time ? hls->init_time : hls->time;
if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
// Independent segments cannot be guaranteed when splitting by time
@ -3098,7 +3098,7 @@ static int hls_init(AVFormatContext *s)
av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
" hls_init_time value will have no effect\n");
hls->init_time = 0;
hls->recording_time = hls->time * AV_TIME_BASE;
hls->recording_time = hls->time;
}
}
@ -3114,8 +3114,8 @@ static int hls_init(AVFormatContext *s)
#define E AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
{"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
{"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
{"hls_time", "set segment length", OFFSET(time), AV_OPT_TYPE_DURATION, {.i64 = 2000000}, 0, INT64_MAX, E},
{"hls_init_time", "set segment length at init list", OFFSET(init_time), AV_OPT_TYPE_DURATION, {.i64 = 0}, 0, INT64_MAX, E},
{"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
{"hls_delete_threshold", "set number of unreferenced segments to keep before deleting", OFFSET(hls_delete_threshold), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, E},
{"hls_ts_options","set hls mpegts list of options for the container format used for hls", OFFSET(format_options), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E},