avfilter: Constify all AVFilters

[ffmpeg] / libavfilter / f_ebur128.c

diff --git a/libavfilter/f_ebur128.c b/libavfilter/f_ebur128.c
index f613d8def23f963e89fb13ddf5a3b3a9debb5649..a9a7820db84a2cff6ba521ae69d4ae7bab25ef69 100644 (file)
--- a/libavfilter/f_ebur128.c
+++ b/libavfilter/f_ebur128.c
@@ -420,7 +420,7 @@ static int config_audio_output(AVFilterLink *outlink)
 
     for (i = 0; i < nb_channels; i++) {
         /* channel weighting */
-        const uint16_t chl = av_channel_layout_extract_channel(outlink->channel_layout, i);
+        const uint64_t chl = av_channel_layout_extract_channel(outlink->channel_layout, i);
         if (chl & (AV_CH_LOW_FREQUENCY|AV_CH_LOW_FREQUENCY_2)) {
             ebur128->ch_weighting[i] = 0;
         } else if (chl & BACK_MASK) {
@@ -527,30 +527,22 @@ static av_cold int init(AVFilterContext *ctx)
     /* insert output pads */
     if (ebur128->do_video) {
         pad = (AVFilterPad){
-            .name         = av_strdup("out0"),
+            .name         = "out0",
             .type         = AVMEDIA_TYPE_VIDEO,
             .config_props = config_video_output,
         };
-        if (!pad.name)
-            return AVERROR(ENOMEM);
         ret = ff_insert_outpad(ctx, 0, &pad);
-        if (ret < 0) {
-            av_freep(&pad.name);
+        if (ret < 0)
             return ret;
-        }
     }
     pad = (AVFilterPad){
-        .name         = av_asprintf("out%d", ebur128->do_video),
+        .name         = ebur128->do_video ? "out1" : "out0",
         .type         = AVMEDIA_TYPE_AUDIO,
         .config_props = config_audio_output,
     };
-    if (!pad.name)
-        return AVERROR(ENOMEM);
     ret = ff_insert_outpad(ctx, ebur128->do_video, &pad);
-    if (ret < 0) {
-        av_freep(&pad.name);
+    if (ret < 0)
         return ret;
-    }
 
     /* summary */
     av_log(ctx, AV_LOG_VERBOSE, "EBU +%d scale\n", ebur128->meter);
@@ -774,6 +766,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
 
             /* push one video frame */
             if (ebur128->do_video) {
+                AVFrame *clone;
                 int x, y, ret;
                 uint8_t *p;
                 double gauge_value;
@@ -823,7 +816,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
 
                 /* set pts and push frame */
                 pic->pts = pts;
-                ret = ff_filter_frame(outlink, av_frame_clone(pic));
+                clone = av_frame_clone(pic);
+                if (!clone)
+                    return AVERROR(ENOMEM);
+                ret = ff_filter_frame(outlink, clone);
                 if (ret < 0)
                     return ret;
             }
@@ -906,7 +902,7 @@ static int query_formats(AVFilterContext *ctx)
     /* set optional output video format */
     if (ebur128->do_video) {
         formats = ff_make_format_list(pix_fmts);
-        if ((ret = ff_formats_ref(formats, &outlink->in_formats)) < 0)
+        if ((ret = ff_formats_ref(formats, &outlink->incfg.formats)) < 0)
             return ret;
         outlink = ctx->outputs[1];
     }
@@ -915,18 +911,18 @@ static int query_formats(AVFilterContext *ctx)
      * Note: ff_set_common_* functions are not used because they affect all the
      * links, and thus break the video format negotiation */
     formats = ff_make_format_list(sample_fmts);
-    if ((ret = ff_formats_ref(formats, &inlink->out_formats)) < 0 ||
-        (ret = ff_formats_ref(formats, &outlink->in_formats)) < 0)
+    if ((ret = ff_formats_ref(formats, &inlink->outcfg.formats)) < 0 ||
+        (ret = ff_formats_ref(formats, &outlink->incfg.formats)) < 0)
         return ret;
 
     layouts = ff_all_channel_layouts();
-    if ((ret = ff_channel_layouts_ref(layouts, &inlink->out_channel_layouts)) < 0 ||
-        (ret = ff_channel_layouts_ref(layouts, &outlink->in_channel_layouts)) < 0)
+    if ((ret = ff_channel_layouts_ref(layouts, &inlink->outcfg.channel_layouts)) < 0 ||
+        (ret = ff_channel_layouts_ref(layouts, &outlink->incfg.channel_layouts)) < 0)
         return ret;
 
     formats = ff_make_format_list(input_srate);
-    if ((ret = ff_formats_ref(formats, &inlink->out_samplerates)) < 0 ||
-        (ret = ff_formats_ref(formats, &outlink->in_samplerates)) < 0)
+    if ((ret = ff_formats_ref(formats, &inlink->outcfg.samplerates)) < 0 ||
+        (ret = ff_formats_ref(formats, &outlink->incfg.samplerates)) < 0)
         return ret;
 
     return 0;
@@ -986,8 +982,6 @@ static av_cold void uninit(AVFilterContext *ctx)
         av_freep(&ebur128->i400.cache[i]);
         av_freep(&ebur128->i3000.cache[i]);
     }
-    for (i = 0; i < ctx->nb_outputs; i++)
-        av_freep(&ctx->output_pads[i].name);
     av_frame_free(&ebur128->outpicref);
 #if CONFIG_SWRESAMPLE
     av_freep(&ebur128->swr_buf);
@@ -1005,7 +999,7 @@ static const AVFilterPad ebur128_inputs[] = {
     { NULL }
 };
 
-AVFilter ff_af_ebur128 = {
+const AVFilter ff_af_ebur128 = {
     .name          = "ebur128",
     .description   = NULL_IF_CONFIG_SMALL("EBU R128 scanner."),
     .priv_size     = sizeof(EBUR128Context),