我想在互联网上播放mp3文件而不下载它们。因此,我使用libcurl将其作为内存中的流获取,如下所示:
static size_t use_data(void *ptr, size_t size, size_t nmemb, FILE *stream) {
/* stream is NULL */
/* What to do with the stream of data ? */
}
CURLcode download_file(const char *url, const char *path, curl_progress_callback progress) {
CURL *curl;
CURLcode res = 0;
FILE *fp;
if ((curl = curl_easy_init())) {
if (progress) {
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress);
}
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, use_data);
res = curl_easy_perform(curl);
/* always cleanup */
curl_easy_cleanup(curl);
fclose(fp);
}
return res;
}
如何解析内存中的流以播放声音?