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avformat/dashenc: Added option to repeatedly publish master playlist

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The master playlist can be published at a specified interval with this option
This commit is contained in:
Karthick J 2019-02-19 12:01:32 +05:30
parent a2c7702ccf
commit ca5ec4cbbc
2 changed files with 11 additions and 1 deletions
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3
doc/muxers.texi
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@ -315,6 +315,9 @@ This option will also try to comply with the above open spec, till Apple's spec
Applicable only when @var{streaming} and @var{hls_playlist} options are enabled. Applicable only when @var{streaming} and @var{hls_playlist} options are enabled.
This is an experimental feature. This is an experimental feature.
@item -master_m3u8_publish_rate @var{master_m3u8_publish_rate}
Publish master playlist repeatedly every after specified number of segment intervals.
@end table @end table
@anchor{framecrc} @anchor{framecrc}

9
libavformat/dashenc.c
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@ -141,6 +141,7 @@ typedef struct DASHContext {
SegmentType segment_type_option; /* segment type as specified in options */ SegmentType segment_type_option; /* segment type as specified in options */
int ignore_io_errors; int ignore_io_errors;
int lhls; int lhls;
int master_publish_rate;
} DASHContext; } DASHContext;
static struct codec_string { static struct codec_string {
@ -965,13 +966,18 @@ static int write_manifest(AVFormatContext *s, int final)
return ret; return ret;
} }
if (c->hls_playlist && !c->master_playlist_created) { if (c->hls_playlist) {
char filename_hls[1024]; char filename_hls[1024];
const char *audio_group = "A1"; const char *audio_group = "A1";
char audio_codec_str[128] = "\0"; char audio_codec_str[128] = "\0";
int is_default = 1; int is_default = 1;
int max_audio_bitrate = 0; int max_audio_bitrate = 0;
// Publish master playlist only the configured rate
if (c->master_playlist_created && (!c->master_publish_rate ||
c->streams[0].segment_index % c->master_publish_rate))
return 0;
if (*c->dirname) if (*c->dirname)
snprintf(filename_hls, sizeof(filename_hls), "%smaster.m3u8", c->dirname); snprintf(filename_hls, sizeof(filename_hls), "%smaster.m3u8", c->dirname);
else else
@ -1798,6 +1804,7 @@ static const AVOption options[] = {
{ "webm", "make segment file in WebM format", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_WEBM }, 0, UINT_MAX, E, "segment_type"}, { "webm", "make segment file in WebM format", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_WEBM }, 0, UINT_MAX, E, "segment_type"},
{ "ignore_io_errors", "Ignore IO errors during open and write. Useful for long-duration runs with network output", OFFSET(ignore_io_errors), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E }, { "ignore_io_errors", "Ignore IO errors during open and write. Useful for long-duration runs with network output", OFFSET(ignore_io_errors), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
{ "lhls", "Enable Low-latency HLS(Experimental). Adds #EXT-X-PREFETCH tag with current segment's URI", OFFSET(lhls), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E }, { "lhls", "Enable Low-latency HLS(Experimental). Adds #EXT-X-PREFETCH tag with current segment's URI", OFFSET(lhls), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
{ "master_m3u8_publish_rate", "Publish master playlist every after this many segment intervals", OFFSET(master_publish_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, UINT_MAX, E},
{ NULL }, { NULL },
}; };