[FFmpeg-devel] [PATCH] libavformat/hls.c: if avio_open2 failed, retry it several times.

[luckliuyuxin]

From 6705d9c9e4ded00075b4d8b23cb05ea2c65146ee Mon Sep 17 00:00:00 2001
From: liuyuxin <liuyuxin at xiaomi.com>
Date: Fri, 6 Nov 2015 16:17:40 +0800
Subject: [PATCH] Network environment or video websites maybe lead to
 avio_open2 failed, but if we try avio_open2 several times, it will return
 success.

---
 libavformat/hls.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/libavformat/hls.c b/libavformat/hls.c
index ccae270..5d55197 100644
--- a/libavformat/hls.c
+++ b/libavformat/hls.c
@@ -41,6 +41,7 @@
 
 #define INITIAL_BUFFER_SIZE 32768
 
+#define MAX_RETRY_COUNT 5
 #define MAX_FIELD_LEN 64
 #define MAX_CHARACTERISTICS_LEN 512
 
@@ -655,8 +656,17 @@ static int parse_playlist(HLSContext *c, const char *url,
         av_dict_set(&opts, "cookies", c->cookies, 0);
         av_dict_set(&opts, "headers", c->headers, 0);
 
-        ret = avio_open2(&in, url, AVIO_FLAG_READ,
-                         c->interrupt_callback, &opts);
+        int try_count = MAX_RETRY_COUNT;
+
+        ret = AVERROR_EXIT;
+        while (try_count-- && !ff_check_interrupt(c->interrupt_callback)) {
+            if ((ret = avio_open2(&in, url, AVIO_FLAG_READ,
+                            c->interrupt_callback, &opts)) >= 0) {
+                break;
+            }
+            av_usleep(100*1000);
+        }
+
         av_dict_free(&opts);
         if (ret < 0)
             return ret;

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