lavfi/avcodec: make avfilter_fill_frame_from*() functions use avfilter_copy_buf_props()

The code in avfilter_copy_buf_props() is more generic, allow code
factorization.

libavfilter/avcodec.c

@@ -134,48 +134,17 @@ int avfilter_copy_buf_props(AVFrame *dst, const AVFilterBufferRef *src)
 int avfilter_fill_frame_from_audio_buffer_ref(AVFrame *frame,
                                               const AVFilterBufferRef *samplesref)
 {
-    if (!samplesref || !samplesref->audio || !frame)
-        return AVERROR(EINVAL);
-
-    memcpy(frame->data, samplesref->data, sizeof(frame->data));
-    memcpy(frame->linesize, samplesref->linesize, sizeof(frame->linesize));
-    av_frame_set_pkt_pos(frame, samplesref->pos);
-    frame->format         = samplesref->format;
-    frame->nb_samples     = samplesref->audio->nb_samples;
-    frame->pts            = samplesref->pts;
-    frame->sample_rate    = samplesref->audio->sample_rate;
-    frame->channel_layout = samplesref->audio->channel_layout;
-
-    return 0;
+    return avfilter_copy_buf_props(frame, samplesref);
 }
 
 int avfilter_fill_frame_from_video_buffer_ref(AVFrame *frame,
                                               const AVFilterBufferRef *picref)
 {
-    if (!picref || !picref->video || !frame)
-        return AVERROR(EINVAL);
-
-    memcpy(frame->data,     picref->data,     sizeof(frame->data));
-    memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize));
-    av_frame_set_pkt_pos(frame, picref->pos);
-    frame->interlaced_frame = picref->video->interlaced;
-    frame->top_field_first  = picref->video->top_field_first;
-    frame->key_frame        = picref->video->key_frame;
-    frame->pict_type        = picref->video->pict_type;
-    frame->sample_aspect_ratio = picref->video->sample_aspect_ratio;
-    frame->width            = picref->video->w;
-    frame->height           = picref->video->h;
-    frame->format           = picref->format;
-    frame->pts              = picref->pts;
-
-    return 0;
+    return avfilter_copy_buf_props(frame, picref);
 }
 
 int avfilter_fill_frame_from_buffer_ref(AVFrame *frame,
                                         const AVFilterBufferRef *ref)
 {
-    if (!ref)
-        return AVERROR(EINVAL);
-    return ref->video ? avfilter_fill_frame_from_video_buffer_ref(frame, ref)
-                      : avfilter_fill_frame_from_audio_buffer_ref(frame, ref);
+    return avfilter_copy_buf_props(frame, ref);
 }