Merge commit 'b9d08c77a44390b0848c06f20bc0e9e951ba6a3c'

* commit 'b9d08c77a44390b0848c06f20bc0e9e951ba6a3c':
  lavf: Don't try to update files atomically with renames on windows

Conflicts:
	libavformat/dashenc.c
	libavformat/hdsenc.c
	libavformat/internal.h
	libavformat/smoothstreamingenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

4 files changed, 30 insertions, 14 deletions

diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c
index b840db909e..0f31d2d397 100644
--- a/libavformat/dashenc.c
+++ b/libavformat/dashenc.c
@@ -296,13 +296,15 @@ static int write_manifest(AVFormatContext *s, int final)
     DASHContext *c = s->priv_data;
     AVIOContext *out;
     char temp_filename[1024];
+    const char *write_filename;
     int ret, i;
     AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
 
     snprintf(temp_filename, sizeof(temp_filename), "%s.tmp", s->filename);
-    ret = avio_open2(&out, temp_filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL);
+    write_filename = USE_RENAME_REPLACE ? temp_filename : s->filename;
+    ret = avio_open2(&out, write_filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL);
     if (ret < 0) {
-        av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename);
+        av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", write_filename);
         return ret;
     }
     avio_printf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
@@ -392,7 +394,7 @@ static int write_manifest(AVFormatContext *s, int final)
     avio_printf(out, "</MPD>\n");
     avio_flush(out);
     avio_close(out);
-    return ff_rename(temp_filename, s->filename, s);
+    return USE_RENAME_REPLACE ? ff_rename(temp_filename, s->filename, s) : 0;
 }
 
 static int dash_write_header(AVFormatContext *s)
@@ -608,6 +610,7 @@ static int dash_flush(AVFormatContext *s, int final, int stream)
     for (i = 0; i < s->nb_streams; i++) {
         OutputStream *os = &c->streams[i];
         char filename[1024] = "", full_path[1024], temp_path[1024];
+        const char *write_path;
         int64_t start_pos = avio_tell(os->ctx->pb);
         int range_length, index_length = 0;
 
@@ -630,7 +633,8 @@ static int dash_flush(AVFormatContext *s, int final, int stream)
             snprintf(filename, sizeof(filename), "chunk-stream%d-%05d.m4s", i, os->segment_index);
             snprintf(full_path, sizeof(full_path), "%s%s", c->dirname, filename);
             snprintf(temp_path, sizeof(temp_path), "%s.tmp", full_path);
-            ret = ffurl_open(&os->out, temp_path, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL);
+            write_path = USE_RENAME_REPLACE ? temp_path : full_path;
+            ret = ffurl_open(&os->out, write_path, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL);
             if (ret < 0)
                 break;
             write_styp(os->ctx->pb);
@@ -645,7 +649,7 @@ static int dash_flush(AVFormatContext *s, int final, int stream)
         } else {
             ffurl_close(os->out);
             os->out = NULL;
-            ret = ff_rename(temp_path, full_path, s);
+            ret = USE_RENAME_REPLACE ? ff_rename(temp_path, full_path, s) : 0;
             if (ret < 0)
                 break;
         }
diff --git a/libavformat/hdsenc.c b/libavformat/hdsenc.c
index 33d7c3a3a8..b2d82e9925 100644
--- a/libavformat/hdsenc.c
+++ b/libavformat/hdsenc.c
@@ -163,6 +163,7 @@ static int write_manifest(AVFormatContext *s, int final)
     HDSContext *c = s->priv_data;
     AVIOContext *out;
     char filename[1024], temp_filename[1024];
+    const char *write_filename;
     int ret, i;
     float duration = 0;
 
@@ -171,10 +172,11 @@ static int write_manifest(AVFormatContext *s, int final)
 
     snprintf(filename, sizeof(filename), "%s/index.f4m", s->filename);
     snprintf(temp_filename, sizeof(temp_filename), "%s/index.f4m.tmp", s->filename);
-    ret = avio_open2(&out, temp_filename, AVIO_FLAG_WRITE,
+    write_filename = USE_RENAME_REPLACE ? temp_filename : filename;
+    ret = avio_open2(&out, write_filename, AVIO_FLAG_WRITE,
                      &s->interrupt_callback, NULL);
     if (ret < 0) {
-        av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename);
+        av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", write_filename);
         return ret;
     }
     avio_printf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
@@ -204,7 +206,7 @@ static int write_manifest(AVFormatContext *s, int final)
     avio_printf(out, "</manifest>\n");
     avio_flush(out);
     avio_close(out);
-    return ff_rename(temp_filename, filename, s);
+    return USE_RENAME_REPLACE ? ff_rename(temp_filename, filename, s) : 0;
 }
 
 static void update_size(AVIOContext *out, int64_t pos)
@@ -223,6 +225,7 @@ static int write_abst(AVFormatContext *s, OutputStream *os, int final)
     HDSContext *c = s->priv_data;
     AVIOContext *out;
     char filename[1024], temp_filename[1024];
+    const char *write_filename;
     int i, ret;
     int64_t asrt_pos, afrt_pos;
     int start = 0, fragments;
@@ -240,10 +243,11 @@ static int write_abst(AVFormatContext *s, OutputStream *os, int final)
              "%s/stream%d.abst", s->filename, index);
     snprintf(temp_filename, sizeof(temp_filename),
              "%s/stream%d.abst.tmp", s->filename, index);
-    ret = avio_open2(&out, temp_filename, AVIO_FLAG_WRITE,
+    write_filename = USE_RENAME_REPLACE ? temp_filename : filename;
+    ret = avio_open2(&out, write_filename, AVIO_FLAG_WRITE,
                      &s->interrupt_callback, NULL);
     if (ret < 0) {
-        av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename);
+        av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", write_filename);
         return ret;
     }
     avio_wb32(out, 0); // abst size
@@ -285,7 +289,7 @@ static int write_abst(AVFormatContext *s, OutputStream *os, int final)
     update_size(out, afrt_pos);
     update_size(out, 0);
     avio_close(out);
-    return ff_rename(temp_filename, filename, s);
+    return USE_RENAME_REPLACE ? ff_rename(temp_filename, filename, s) : 0;
 }
 
 static int init_file(AVFormatContext *s, OutputStream *os, int64_t start_ts)
diff --git a/libavformat/internal.h b/libavformat/internal.h
index f7a79dd8d7..180b474ced 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -435,4 +435,10 @@ enum AVWriteUncodedFrameFlags {
  */
 int ff_copy_whitelists(AVFormatContext *dst, AVFormatContext *src);
 
+#ifndef _WIN32
+#define USE_RENAME_REPLACE 1
+#else
+#define USE_RENAME_REPLACE 0
+#endif
+
 #endif /* AVFORMAT_INTERNAL_H */
diff --git a/libavformat/smoothstreamingenc.c b/libavformat/smoothstreamingenc.c
index d6cdf90f52..94cc8e7a60 100644
--- a/libavformat/smoothstreamingenc.c
+++ b/libavformat/smoothstreamingenc.c
@@ -215,14 +215,16 @@ static int write_manifest(AVFormatContext *s, int final)
     SmoothStreamingContext *c = s->priv_data;
     AVIOContext *out;
     char filename[1024], temp_filename[1024];
+    const char *write_filename;
     int ret, i, video_chunks = 0, audio_chunks = 0, video_streams = 0, audio_streams = 0;
     int64_t duration = 0;
 
     snprintf(filename, sizeof(filename), "%s/Manifest", s->filename);
     snprintf(temp_filename, sizeof(temp_filename), "%s/Manifest.tmp", s->filename);
-    ret = avio_open2(&out, temp_filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL);
+    write_filename = USE_RENAME_REPLACE ? temp_filename : filename;
+    ret = avio_open2(&out, write_filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL);
     if (ret < 0) {
-        av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename);
+        av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", write_filename);
         return ret;
     }
     avio_printf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
@@ -283,7 +285,7 @@ static int write_manifest(AVFormatContext *s, int final)
     avio_printf(out, "</SmoothStreamingMedia>\n");
     avio_flush(out);
     avio_close(out);
-    return ff_rename(temp_filename, filename, s);
+    return USE_RENAME_REPLACE ? ff_rename(temp_filename, filename, s) : 0;
 }
 
 static int ism_write_header(AVFormatContext *s)