From 000ee7ef3440349cd714f8bdfab4214648881805 Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan.ytdlp@gmail.com>
Date: Sat, 8 May 2021 23:42:25 +0530
Subject: [PATCH] [fragment] Make sure first segment is not skipped

---
 yt_dlp/downloader/dash.py | 5 +++--
 yt_dlp/downloader/hls.py  | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/yt_dlp/downloader/dash.py b/yt_dlp/downloader/dash.py
index 4ccf53e23..b3ebfb057 100644
--- a/yt_dlp/downloader/dash.py
+++ b/yt_dlp/downloader/dash.py
@@ -120,6 +120,7 @@ def download_fragment(fragment):
                 return frag_content, frag_index
 
             def append_fragment(frag_content, frag_index):
+                fatal = frag_index == 1 or not skip_unavailable_fragments
                 if frag_content:
                     fragment_filename = '%s-Frag%d' % (ctx['tmpfilename'], frag_index)
                     try:
@@ -132,7 +133,7 @@ def append_fragment(frag_content, frag_index):
                         if ose.errno != errno.ENOENT:
                             raise
                         # FileNotFoundError
-                        if skip_unavailable_fragments:
+                        if not fatal:
                             self.report_skip_fragment(frag_index)
                             return True
                         else:
@@ -141,7 +142,7 @@ def append_fragment(frag_content, frag_index):
                                 'fragment %s not found, unable to continue' % frag_index)
                             return False
                 else:
-                    if skip_unavailable_fragments:
+                    if not fatal:
                         self.report_skip_fragment(frag_index)
                         return True
                     else:
diff --git a/yt_dlp/downloader/hls.py b/yt_dlp/downloader/hls.py
index 8a99171f8..c66902cdf 100644
--- a/yt_dlp/downloader/hls.py
+++ b/yt_dlp/downloader/hls.py
@@ -387,6 +387,7 @@ def pack_fragment(frag_content, frag_index):
                     return output.getvalue().encode('utf-8')
 
             def append_fragment(frag_content, frag_index):
+                fatal = frag_index == 1 or not skip_unavailable_fragments
                 if frag_content:
                     fragment_filename = '%s-Frag%d' % (ctx['tmpfilename'], frag_index)
                     try:
@@ -400,7 +401,7 @@ def append_fragment(frag_content, frag_index):
                         if ose.errno != errno.ENOENT:
                             raise
                         # FileNotFoundError
-                        if skip_unavailable_fragments:
+                        if not fatal:
                             self.report_skip_fragment(frag_index)
                             return True
                         else:
@@ -409,7 +410,7 @@ def append_fragment(frag_content, frag_index):
                                 'fragment %s not found, unable to continue' % frag_index)
                             return False
                 else:
-                    if skip_unavailable_fragments:
+                    if not fatal:
                         self.report_skip_fragment(frag_index)
                         return True
                     else: