ret = init_output_stream(ost, error, sizeof(error));
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
ret = init_output_stream(ost, error, sizeof(error));
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error initializing output stream %d:%d -- %s\n",
av_log(NULL, AV_LOG_WARNING,
"Finishing stream %d:%d without any data written to it.\n",
av_log(NULL, AV_LOG_WARNING,
"Finishing stream %d:%d without any data written to it.\n",