// Set the logging callback function to one that uses av_log() (see implementation above).
callback_function = (WelsTraceCallback) ff_libopenh264_trace_callback;
- (*s->encoder)->SetOption(s->encoder, ENCODER_OPTION_TRACE_CALLBACK, (void *)&callback_function);
+ (*s->encoder)->SetOption(s->encoder, ENCODER_OPTION_TRACE_CALLBACK, &callback_function);
// Set the AVCodecContext as the libopenh264 callback context so that it can be passed to av_log().
- (*s->encoder)->SetOption(s->encoder, ENCODER_OPTION_TRACE_CALLBACK_CONTEXT, (void *)&avctx);
+ (*s->encoder)->SetOption(s->encoder, ENCODER_OPTION_TRACE_CALLBACK_CONTEXT, &avctx);
(*s->encoder)->GetDefaultParams(s->encoder, ¶m);