transcode: Refactured setup_output_stream using av_buffersink_get_* functions

transcode.c

@@ -149,25 +149,24 @@ static void setup_output_stream(char *stream, AVStream *st, AVCodecContext *enc,
 		AVFilterContext *sink)
 {
 	int err;
-	AVFilterLink *l;
 	AVDictionary *opts;
-	l = sink->inputs[0];
 	if (enc->codec_type == AVMEDIA_TYPE_VIDEO)
 	{
 		/* Why not use av_buffersink_get_* here? */
-		enc->height = l->h;
-		enc->width = l->w;
-		enc->sample_aspect_ratio = l->sample_aspect_ratio;
-		enc->pix_fmt = l->format;
+		enc->height = av_buffersink_get_h(sink);
+		enc->width = av_buffersink_get_w(sink);
+		enc->sample_aspect_ratio = av_buffersink_get_sample_aspect_ratio(sink);
+		enc->pix_fmt = av_buffersink_get_format(sink);
+		enc->framerate = av_buffersink_get_frame_rate(sink);
 	}
 	else if (enc->codec_type == AVMEDIA_TYPE_AUDIO)
 	{
-		enc->sample_rate = l->sample_rate;
-		enc->channel_layout = l->channel_layout;
-		enc->channels = l->channels;
-		enc->sample_fmt = l->format;
+		enc->sample_rate = av_buffersink_get_sample_rate(sink);
+		enc->channel_layout = av_buffersink_get_channel_layout(sink);
+		enc->channels = av_buffersink_get_channels(sink);
+		enc->sample_fmt = av_buffersink_get_format(sink);
 	}
-	enc->time_base = l->time_base;
+	enc->time_base = av_buffersink_get_time_base(sink);
 	opts = 0;
 	parse_dict(&opts, jlookup(stream, "options"));
 	if ((err = avcodec_open2(enc, enc->codec, &opts)) < 0)