Merge commit '8cd472d3'

* commit '8cd472d3':
  avconv: make output -ss insert trim/atrim filters.

Conflicts:
	Changelog
	ffmpeg.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Changelog

@@ -35,7 +35,8 @@ version <next>:
   the vid.stab library
 - astats filter
 - trim and atrim filters
-- ffmpeg -t option is now sample-accurate when transcoding audio
+- ffmpeg -t and -ss (output-only) options are now sample-accurate when
+  transcoding audio
 
 
 version 1.2:

ffmpeg.c

@@ -1059,11 +1059,6 @@ static int reap_filters(void)
                                     av_rescale_q(of->start_time,
                                                 AV_TIME_BASE_Q,
                                                 ost->st->codec->time_base);
-
-                if (of->start_time && filtered_frame->pts < 0) {
-                    av_frame_unref(filtered_frame);
-                    continue;
-                }
             }
             //if (ost->source_index >= 0)
             //    *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold

ffmpeg_filter.c

@@ -286,10 +286,12 @@ static int insert_trim(OutputStream *ost, AVFilterContext **last_filter, int *pa
     char filter_name[128];
     int ret = 0;
 
-    if (of->recording_time == INT64_MAX)
+    if (of->recording_time == INT64_MAX && !of->start_time)
         return 0;
 
-    return 0;
+    // Use with duration and without output starttime is buggy with trim filters
+    if (!of->start_time)
+        return 0;
 
     trim = avfilter_get_by_name(name);
     if (!trim) {
@@ -304,8 +306,14 @@ static int insert_trim(OutputStream *ost, AVFilterContext **last_filter, int *pa
     if (!ctx)
         return AVERROR(ENOMEM);
 
-    ret = av_opt_set_double(ctx, "duration", (double)of->recording_time / 1e6,
-                            AV_OPT_SEARCH_CHILDREN);
+    if (of->recording_time != INT64_MAX) {
+        ret = av_opt_set_double(ctx, "duration", (double)of->recording_time / 1e6,
+                                AV_OPT_SEARCH_CHILDREN);
+    }
+    if (ret >= 0 && of->start_time) {
+        ret = av_opt_set_double(ctx, "start", (double)of->start_time / 1e6,
+                                AV_OPT_SEARCH_CHILDREN);
+    }
     if (ret < 0) {
         av_log(ctx, AV_LOG_ERROR, "Error configuring the %s filter", name);
         return ret;