Current HLS implementation simply skip a failed segment to catch up
the stream, but this is not optimal for some use cases like livestream
recording.
Add an option to retry a failed segment to ensure the output file is a
complete stream.
Signed-off-by: gnattu <gnatt...@me.com>
---
libavformat/hls.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/libavformat/hls.c b/libavformat/hls.c
index e622425e80..2b977f9132 100644
--- a/libavformat/hls.c
+++ b/libavformat/hls.c
@@ -225,6 +225,7 @@ typedef struct HLSContext {
int http_persistent;
int http_multiple;
int http_seekable;
+ int seg_max_retry;
AVIOContext *playlist_pb;
HLSCryptoContext crypto_ctx;
} HLSContext;
@@ -1472,6 +1473,7 @@ static int read_data(void *opaque, uint8_t *buf,
int buf_size)
int ret;
int just_opened = 0;
int reload_count = 0;
+ int segment_retries = 0;
struct segment *seg;
restart:
@@ -1563,9 +1565,18 @@ reload:
av_log(v->parent, AV_LOG_WARNING, "Failed to open segment
%"PRId64" of playlist %d\n",
v->cur_seq_no,
v->index);
- v->cur_seq_no += 1;
+ if (segment_retries >= c->seg_max_retry) {
+ av_log(v->parent, AV_LOG_WARNING, "Segment %"PRId64" of
playlist %d failed too many times, skipping\n",
+ v->cur_seq_no,
+ v->index);
+ v->cur_seq_no += 1;
+ segment_retries = 0;
+ } else {
+ segment_retries += 1;
+ }
goto reload;
}
+ segment_retries = 0;
just_opened = 1;
}
@@ -2549,6 +2560,8 @@ static const AVOption hls_options[] = {
OFFSET(http_seekable), AV_OPT_TYPE_BOOL, { .i64 = -1}, -1, 1,
FLAGS},
{"seg_format_options", "Set options for segment demuxer",
OFFSET(seg_format_opts), AV_OPT_TYPE_DICT, {.str = NULL}, 0,
0, FLAGS},
+ {"seg_max_retry", "Maximum number of times to reload a segment on
error.",
+ OFFSET(seg_max_retry), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX,
FLAGS},
{NULL}
};
-- 2.37.0 (Apple Git-136)
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