On 2/19/19 12:18 PM, Karthick J wrote:
> The master playlist can be published at a specified interval with this option
> ---
> doc/muxers.texi | 3 +++
> libavformat/dashenc.c | 9 ++++++++-
> 2 files changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/doc/muxers.texi b/doc/muxers.texi
> index 36010cf2d1..372fab2f92 100644
> --- a/doc/muxers.texi
> +++ b/doc/muxers.texi
> @@ -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.
> 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
>
> @anchor{framecrc}
> diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c
> index 37a7547b12..a0b44a0ec3 100644
> --- a/libavformat/dashenc.c
> +++ b/libavformat/dashenc.c
> @@ -141,6 +141,7 @@ typedef struct DASHContext {
> SegmentType segment_type_option; /* segment type as specified in
> options */
> int ignore_io_errors;
> int lhls;
> + int master_publish_rate;
> } DASHContext;
>
> static struct codec_string {
> @@ -965,13 +966,18 @@ static int write_manifest(AVFormatContext *s, int final)
> return ret;
> }
>
> - if (c->hls_playlist && !c->master_playlist_created) {
> + if (c->hls_playlist) {
> char filename_hls[1024];
> const char *audio_group = "A1";
> char audio_codec_str[128] = "\0";
> int is_default = 1;
> 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)
> snprintf(filename_hls, sizeof(filename_hls), "%smaster.m3u8",
> c->dirname);
> 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"},
> { "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 },
> + { "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 },
> };
Pushed Patchset.
>
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