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hlsenc: Support outputting specific versions 

Right now only version 2 and version 3 are supported.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Luca Barbato 2015-08-16 21:21:50 +02:00
parent d68705c975
commit 2157df425b
2 changed files with 14 additions and 4 deletions
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3
doc/muxers.texi
View File

@ -119,6 +119,9 @@ Append @var{baseurl} to every entry in the playlist.
Useful to generate playlists with absolute paths.
@item -hls_allow_cache @var{allowcache}
Explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments
@item -hls_version @var{version}
Set the protocol version. Enables or disables version-specific features
such as the integer (version 2) or decimal EXTINF values (version 3).
@end table
@anchor{image2}

11
libavformat/hlsenc.c
View File

@ -47,6 +47,7 @@ typedef struct HLSContext {
float time; // Set by a private option.
int size; // Set by a private option.
int wrap; // Set by a private option.
int version; // Set by a private option.
int allowcache;
int64_t recording_time;
int has_video;
@ -149,18 +150,23 @@ static int hls_window(AVFormatContext *s, int last)
}
avio_printf(out, "#EXTM3U\n");
avio_printf(out, "#EXT-X-VERSION:3\n");
avio_printf(out, "#EXT-X-VERSION:%d\n", hls->version);
if (hls->allowcache == 0 || hls->allowcache == 1) {
avio_printf(out, "#EXT-X-ALLOW-CACHE:%s\n", hls->allowcache == 0 ? "NO" : "YES");
}
avio_printf(out, "#EXT-X-TARGETDURATION:%"PRId64"\n",
av_rescale(target_duration, 1, AV_TIME_BASE));
av_rescale_rnd(target_duration, 1, AV_TIME_BASE,
AV_ROUND_UP));
avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
av_log(s, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n",
sequence);
for (en = hls->list; en; en = en->next) {
if (hls->version > 2)
avio_printf(out, "#EXTINF:%f\n",
(double)en->duration / AV_TIME_BASE);
else
avio_printf(out, "#EXTINF:%"PRId64",\n",
av_rescale(en->duration, 1, AV_TIME_BASE));
if (hls->baseurl)
@ -337,6 +343,7 @@ static const AVOption options[] = {
{"hls_wrap", "number after which the index wraps", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
{"hls_allow_cache", "explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments", OFFSET(allowcache), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, E},
{"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
{"hls_version", "protocol version", OFFSET(version), AV_OPT_TYPE_INT, {.i64 = 3}, 2, 3, E},
{ NULL },
};