Merge commit '5074f4545c439420daebe4c2f28ed216440b6ec7'
[ffmpeg.git] / ffmpeg_filter.c
index e7e7242..ed4c9b1 100644 (file)
@@ -276,6 +276,62 @@ static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
     ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
 }
 
+static int insert_trim(OutputStream *ost, AVFilterContext **last_filter, int *pad_idx)
+{
+    OutputFile *of = output_files[ost->file_index];
+    AVFilterGraph *graph = (*last_filter)->graph;
+    AVFilterContext *ctx;
+    const AVFilter *trim;
+    const char *name = ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO ? "trim" : "atrim";
+    char filter_name[128];
+    int ret = 0;
+
+    if (of->recording_time == INT64_MAX && !of->start_time)
+        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) {
+        av_log(NULL, AV_LOG_ERROR, "%s filter not present, cannot limit "
+               "recording time.\n", name);
+        return AVERROR_FILTER_NOT_FOUND;
+    }
+
+    snprintf(filter_name, sizeof(filter_name), "%s for output stream %d:%d",
+             name, ost->file_index, ost->index);
+    ctx = avfilter_graph_alloc_filter(graph, trim, filter_name);
+    if (!ctx)
+        return AVERROR(ENOMEM);
+
+    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;
+    }
+
+    ret = avfilter_init_str(ctx, NULL);
+    if (ret < 0)
+        return ret;
+
+    ret = avfilter_link(*last_filter, *pad_idx, ctx, 0);
+    if (ret < 0)
+        return ret;
+
+    *last_filter = ctx;
+    *pad_idx     = 0;
+    return 0;
+}
+
 static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
 {
     char *pix_fmts;
@@ -298,7 +354,7 @@ static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter,
         char args[255];
         AVFilterContext *filter;
 
-        snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
+        snprintf(args, sizeof(args), "%d:%d:0x%X",
                  codec->width,
                  codec->height,
                  (unsigned)ost->sws_flags);
@@ -352,6 +408,11 @@ static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter,
         pad_idx = 0;
     }
 
+    ret = insert_trim(ost, &last_filter, &pad_idx);
+    if (ret < 0)
+        return ret;
+
+
     if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
         return ret;
 
@@ -363,6 +424,7 @@ static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter,
     OutputStream *ost = ofilter->ost;
     AVCodecContext *codec  = ost->st->codec;
     AVFilterContext *last_filter = out->filter_ctx;
+    OutputFile *of = output_files[ost->file_index];
     int pad_idx = out->pad_idx;
     char *sample_fmts, *sample_rates, *channel_layouts;
     char name[255];
@@ -458,6 +520,24 @@ static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter,
         AUTO_INSERT_FILTER("-vol", "volume", args);
     }
 
+    if (ost->apad && of->shortest) {
+        char args[256];
+        int i;
+
+        for (i=0; i<of->ctx->nb_streams; i++)
+            if (of->ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
+                break;
+
+        if (i<of->ctx->nb_streams) {
+            snprintf(args, sizeof(args), "%s", ost->apad);
+            AUTO_INSERT_FILTER("-apad", "apad", args);
+        }
+    }
+
+    ret = insert_trim(ost, &last_filter, &pad_idx);
+    if (ret < 0)
+        return ret;
+
     if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
         return ret;