avcodec/mediacodec: link to related documentation

libavcodec/mediacodec.h

@@ -90,11 +90,13 @@ int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render);
  * that is associated with the decoder. The timestamp must be within one second
  * of the current `java/lang/System#nanoTime()` (which is implemented using
  * `CLOCK_MONOTONIC` on Android). See the Android MediaCodec documentation
- * of `android/media/MediaCodec#releaseOutputBuffer(int,long)` for more details.
+ * of [`android/media/MediaCodec#releaseOutputBuffer(int,long)`][0] for more details.
  *
  * @param buffer the buffer to render
  * @param time timestamp in nanoseconds of when to render the buffer
  * @return 0 on success, < 0 otherwise
+ *
+ * [0]: https://developer.android.com/reference/android/media/MediaCodec#releaseOutputBuffer(int,%20long)
  */
 int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time);