From 5e829262a6a6068dfed9d76da4a9635f1f4be391 Mon Sep 17 00:00:00 2001 From: Jun Zhao Date: Thu, 8 Aug 2019 00:12:16 +0800 Subject: [PATCH] lavf/hls: add http_seekable option for HTTP partial requests Add http_seekable option for HTTP partial requests, when The EXT-X-BYTERANGE tag indicates that a Media Segment is a sub-range of the resource identified by its URI, we can use HTTP partial requests to get the Media Segment. Reviewed-by: Steven Liu Signed-off-by: Jun Zhao --- doc/demuxers.texi | 4 ++++ libavformat/hls.c | 9 +++++++-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/doc/demuxers.texi b/doc/demuxers.texi index 57d1532212f..fe766a5de7d 100644 --- a/doc/demuxers.texi +++ b/doc/demuxers.texi @@ -338,6 +338,10 @@ Enabled by default. @item http_multiple Use multiple HTTP connections for downloading HTTP segments. Enabled by default for HTTP/1.1 servers. + +@item http_seekable +Use HTTP partial requests for downloading HTTP segments. +0 = disable, 1 = enable, -1 = auto, Default is auto. @end table @section image2 diff --git a/libavformat/hls.c b/libavformat/hls.c index 052244592cc..61b6759ef53 100644 --- a/libavformat/hls.c +++ b/libavformat/hls.c @@ -207,6 +207,7 @@ typedef struct HLSContext { int max_reload; int http_persistent; int http_multiple; + int http_seekable; AVIOContext *playlist_pb; } HLSContext; @@ -1796,8 +1797,10 @@ static int hls_read_header(AVFormatContext *s) if ((ret = save_avio_options(s)) < 0) goto fail; - /* Some HLS servers don't like being sent the range header */ - av_dict_set(&c->avio_opts, "seekable", "0", 0); + /* XXX: Some HLS servers don't like being sent the range header, + in this case, need to setting http_seekable = 0 to disable + the range header */ + av_dict_set_int(&c->avio_opts, "seekable", c->http_seekable, 0); if ((ret = parse_playlist(c, s->url, NULL, s->pb)) < 0) goto fail; @@ -2311,6 +2314,8 @@ static const AVOption hls_options[] = { OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS }, {"http_multiple", "Use multiple HTTP connections for fetching segments", OFFSET(http_multiple), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, FLAGS}, + {"http_seekable", "Use HTTP partial requests, 0 = disable, 1 = enable, -1 = auto", + OFFSET(http_seekable), AV_OPT_TYPE_BOOL, { .i64 = -1}, -1, 1, FLAGS}, {NULL} }; -- 2.39.2