Steven Liu <l...@chinaffmpeg.org>于2017年1月23日 周一下午5:29写道：
> Signed-off-by: Steven Liu <l...@chinaffmpeg.org>
> ---
> libavformat/hlsenc.c | 34 +++++++++++++++-------------------
> 1 file changed, 15 insertions(+), 19 deletions(-)
>
> diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
> index f070bc3..df482ac 100644
> --- a/libavformat/hlsenc.c
> +++ b/libavformat/hlsenc.c
> @@ -659,6 +659,19 @@ static void set_http_options(AVDictionary **options,
> HLSContext *c)
> av_dict_set(options, "method", c->method, 0);
> }
>
> +static void write_m3u8_head_block(HLSContext *hls, AVIOContext *out, int
> version,
> + int target_duration, int64_t sequence)
> +{
> + avio_printf(out, "#EXTM3U\n");
> + avio_printf(out, "#EXT-X-VERSION:%d\n", 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:%d\n", target_duration);
> + avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
> + av_log(hls, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n",
> sequence);
> +}
> +
> static int hls_window(AVFormatContext *s, int last)
> {
> HLSContext *hls = s->priv_data;
> @@ -698,21 +711,13 @@ static int hls_window(AVFormatContext *s, int last)
> }
>
> hls->discontinuity_set = 0;
> - avio_printf(out, "#EXTM3U\n");
> - avio_printf(out, "#EXT-X-VERSION:%d\n", 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:%d\n", target_duration);
> - avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
> + write_m3u8_head_block(hls, out, version, target_duration, sequence);
> if (hls->pl_type == PLAYLIST_TYPE_EVENT) {
> avio_printf(out, "#EXT-X-PLAYLIST-TYPE:EVENT\n");
> } else if (hls->pl_type == PLAYLIST_TYPE_VOD) {
> avio_printf(out, "#EXT-X-PLAYLIST-TYPE:VOD\n");
> }
>
> - av_log(s, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n",
> - sequence);
> if((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence
> && hls->discontinuity_set==0 ){
> avio_printf(out, "#EXT-X-DISCONTINUITY\n");
> hls->discontinuity_set = 1;
> @@ -774,16 +779,7 @@ static int hls_window(AVFormatContext *s, int last)
> if( hls->vtt_m3u8_name ) {
> if ((ret = s->io_open(s, &sub_out, hls->vtt_m3u8_name,
> AVIO_FLAG_WRITE, &options)) < 0)
> goto fail;
> - avio_printf(sub_out, "#EXTM3U\n");
> - avio_printf(sub_out, "#EXT-X-VERSION:%d\n", version);
> - if (hls->allowcache == 0 || hls->allowcache == 1) {
> - avio_printf(sub_out, "#EXT-X-ALLOW-CACHE:%s\n",
> hls->allowcache == 0 ? "NO" : "YES");
> - }
> - avio_printf(sub_out, "#EXT-X-TARGETDURATION:%d\n",
> target_duration);
> - avio_printf(sub_out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n",
> sequence);
> -
> - av_log(s, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n",
> - sequence);
> + write_m3u8_head_block(hls, sub_out, version, target_duration,
> sequence);
>
> for (en = hls->segments; en; en = en->next) {
> avio_printf(sub_out, "#EXTINF:%f,\n", en->duration);
> --
> 2.10.1 (Apple Git-78)
>
>
>
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>
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