/* temporary storage until stream maps are processed */
AVFilterInOut *out_tmp;
enum AVMediaType type;
+
+ /* desired output stream properties */
+ int width, height;
+ AVRational frame_rate;
+ int format;
+ int sample_rate;
+ uint64_t channel_layout;
+
+ // those are only set if no format is specified and the encoder gives us multiple options
+ int *formats;
+ uint64_t *channel_layouts;
+ int *sample_rates;
} OutputFilter;
typedef struct FilterGraph {