百度API 视频转文本调用 备忘 ，一开始用 Access Key来调用，发现不行，得用控制台后面的应用管理，要在应用列表中新建一个应用，勾选接口，比如 音频文件转写。
注意，一定要先开通 音频文件转写-中文普通话 服务，现在新用户1.5元可以用10小时。
新建应用后，可以在新建的应用中，看到 API Key 和 Secret Key ，然后就可以用它们获取Token值了。
static string GetAccessToken()
{
var client = new RestClient($"https://aip.baidubce.com/oauth/2.0/token");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddParameter("grant_type", "client_credentials");
request.AddParameter("client_id", API_KEY);
request.AddParameter("client_secret", SECRET_KEY);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);
var result = JsonConvert.DeserializeObject(response.Content);
return result.access_token.ToString();
}
获取好Token值后，就可以放在接口中调用了。
public static CreateResult Create(string url)
{
var client = new RestClient($"https://aip.baidubce.com/rpc/2.0/aasr/v1/create?access_token={GetAccessToken()}");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddHeader("Accept", "application/json");
string body = $@"{{""speech_url"":""{url}"",""format"":""mp3"",""pid"":80001,""rate"":16000}}";
request.AddParameter("application/json", body, ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
CreateResult result = JsonConvert.DeserializeObject(response.Content);
return result;
}
public static QueryResult Query(string task_id)
{
var client = new RestClient($"https://aip.baidubce.com/rpc/2.0/aasr/v1/query?access_token={GetAccessToken()}");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddHeader("Accept", "application/json");
var body = $@"{{""task_ids"":[""{task_id}""]}}";
request.AddParameter("application/json", body, ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
QueryResult result = JsonConvert.DeserializeObject(response.Content);
return result;
}
https://cloud.baidu.com/product/speech.html?track=90c61a700355e776e985836242a658078f4fbd05d7aceab0&sdclkid=A5fs15Fz15fGbrDiAse&bd_vid=10016635567206910010