[FFmpeg-devel] [PATCH] avformat/hls:use EXT-X-START instead of live_start_index if it's in playlist
Steven Liu
lingjiujianke at gmail.com
Mon Jun 27 05:23:11 EEST 2022
Li Kai <wolfleekay at gmail.com> 于2022年6月25日周六 22:15写道:
>
> OK, I add the option description in doc/demuxers.texi.
>
> About invalid EXT-X-START value, it's not played on Safari.
> So I make it error to handle.
>
> You opinion, it's better way. The latest patch fix it.
>
>
>
@@ -741,6 +744,7 @@ static int parse_playlist(HLSContext *c, const char *url,
struct segment **prev_segments = NULL;
int prev_n_segments = 0;
int64_t prev_start_seq_no = -1;
+ const char *p;
if (is_http && !in && c->http_persistent && c->playlist_pb) {
in = c->playlist_pb;
@@ -889,6 +893,20 @@ static int parse_playlist(HLSContext *c, const char *url,
cur_init_section->key = NULL;
}
+ } else if (av_strstart(line, "#EXT-X-START:", &ptr)) {
Can the "const char *p;" move to here? And maybe make a clarify name
will better i think, e.g. const char *time_offset_value?
+ ret = ensure_playlist(c, &pls, url);
+ if (ret < 0) {
+ goto fail;
+ }
+ if (av_strstart(ptr, "TIME-OFFSET=", &p)) {
+ float offset = strtof(p, NULL);
+ pls->start_time_offset = offset * AV_TIME_BASE;
+ pls->time_offset_flag = 1;
+ } else {
+ av_log(c->ctx, AV_LOG_WARNING, "#EXT-X-START value is"
+ "invalid, it will be ignored");
+ continue;
+ }
} else if (av_strstart(line, "#EXT-X-ENDLIST", &ptr)) {
if (pls)
pls->finished = 1;
Thanks
Steven
More information about the ffmpeg-devel
mailing list