ffserver: refactor build_file_streams()

Avoid unneeded nesting, drop redundant var
Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>

ffserver.c

@@ -3567,56 +3567,59 @@ static void extract_mpeg4_header(AVFormatContext *infile)
 /* compute the needed AVStream for each file */
 static void build_file_streams(void)
 {
-    FFServerStream *stream, *stream_next;
+    FFServerStream *stream;
+    AVFormatContext *infile;
     int i, ret;
 
     /* gather all streams */
-    for(stream = config.first_stream; stream; stream = stream_next) {
-        AVFormatContext *infile = NULL;
-        stream_next = stream->next;
-        if (stream->stream_type == STREAM_TYPE_LIVE &&
-            !stream->feed) {
-            /* the stream comes from a file */
-            /* try to open the file */
-            /* open stream */
-            if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
-                /* specific case : if transport stream output to RTP,
-                 * we use a raw transport stream reader */
-                av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
-            }
+    for(stream = config.first_stream; stream; stream = stream->next) {
+        infile = NULL;
 
-            if (!stream->feed_filename[0]) {
-                http_log("Unspecified feed file for stream '%s'\n",
-                         stream->filename);
-                goto fail;
-            }
+        if (stream->stream_type != STREAM_TYPE_LIVE || stream->feed)
+            continue;
+
+        /* the stream comes from a file */
+        /* try to open the file */
+        /* open stream */
 
-            http_log("Opening feed file '%s' for stream '%s'\n",
-                     stream->feed_filename, stream->filename);
-            ret = avformat_open_input(&infile, stream->feed_filename,
-                                      stream->ifmt, &stream->in_opts);
-            if (ret < 0) {
-                http_log("Could not open '%s': %s\n", stream->feed_filename,
-                         av_err2str(ret));
-                /* remove stream (no need to spend more time on it) */
-            fail:
-                remove_stream(stream);
-            } else {
-                /* find all the AVStreams inside and reference them in
-                 * 'stream' */
-                if (avformat_find_stream_info(infile, NULL) < 0) {
-                    http_log("Could not find codec parameters from '%s'\n",
-                             stream->feed_filename);
-                    avformat_close_input(&infile);
-                    goto fail;
-                }
-                extract_mpeg4_header(infile);
 
-                for(i=0;i<infile->nb_streams;i++)
-                    add_av_stream1(stream, infile->streams[i]->codec, 1);
+        /* specific case: if transport stream output to RTP,
+         * we use a raw transport stream reader */
+        if (stream->fmt && !strcmp(stream->fmt->name, "rtp"))
+            av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
 
+        if (!stream->feed_filename[0]) {
+            http_log("Unspecified feed file for stream '%s'\n",
+                     stream->filename);
+            goto fail;
+        }
+
+        http_log("Opening feed file '%s' for stream '%s'\n",
+                 stream->feed_filename, stream->filename);
+
+        ret = avformat_open_input(&infile, stream->feed_filename,
+                                  stream->ifmt, &stream->in_opts);
+        if (ret < 0) {
+            http_log("Could not open '%s': %s\n", stream->feed_filename,
+                     av_err2str(ret));
+            /* remove stream (no need to spend more time on it) */
+        fail:
+            remove_stream(stream);
+        } else {
+            /* find all the AVStreams inside and reference them in
+             * 'stream' */
+            if (avformat_find_stream_info(infile, NULL) < 0) {
+                http_log("Could not find codec parameters from '%s'\n",
+                         stream->feed_filename);
                 avformat_close_input(&infile);
+                goto fail;
             }
+            extract_mpeg4_header(infile);
+
+            for(i=0;i<infile->nb_streams;i++)
+                add_av_stream1(stream, infile->streams[i]->codec, 1);
+
+            avformat_close_input(&infile);
         }
     }
 }