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如何使用Python处理来自服务器的响应?

分类: 技术问答 • 2022-05-30 11:12:32
问题描述：

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Com-data; name="Audio"; paramName="TEXT_TO_READ"

Content-Type: audio/x-wav;codec=pcm;bit=16;rate=16000

NContext: 6d46462d-f312-4352-bf01-0a220ed75ae4



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----N_NMSP_vutc5w1XobDdefsYG3wq

Content-Disposition: form-data; name="Audio"; paramName="TEXT_TO_READ"

Content-Type: audio/x-wav;codec=pcm;bit=16;rate=16000

Ne-Context: 6d46462d-f312-4352-bf01-0a220ed75ae4



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----NMSP_vutc5w1XobDdefsYG3wq

Content-Disposition: form-data; name="QueryResult"

Content-Type: application/JSON; charset=utf-8

N-Context: 6d46462d-f312-4352-bf01-0a220ed75ae4

{"TTSStatus":"Success","result_type":"NVC_TTS_CMD","NMAS_PRFX_SESSION_ID":"23de3ddd-62b9-407c-88f0-1f81d7c1e475","NMAS_PRFX_TRANSACTION_ID":"1"}

---NNMSP_vutc5w1XobDdefsYG3wq--

我只是从服务器获取标头，二进制数据和TTSStatus，但现在我得到的只是标头，二进制，标头，二进制和TTSStatus.当我刚从服务器获取标头，二进制数据和TTSStatus时，以下代码可以正常工作.

I was just getting a header, binary data and TTSStatus from the server but now I am getting as above nothing but getting header, binary, header, binary and TTSStatus. The below code is working fine when I was just getting a header, binary data and TTSStatus from the server.

有人可以告诉我如何进行修改吗?

Can someone please tell me how to modify it ? 

for part in msg.walk():
        content_type = part.get_content_type()
        payload = part.get_payload()
        try:
            #if there is no reference file exist then create one based on the response 

            if content_type == "audio/x-wav" and len(payload):
                ref_filename = get_filename('pcm', output_filename + '_ref', outputfolder)
                if not os.path.exists(ref_filename):
                    with open(ref_filename, 'wb') as f_pcm:
                        f_pcm.write(payload)

                else:
                    print "[Warning] Reference PCM file is already there"

                cur_filename = get_filename('pcm', output_filename, outputfolder)
                if len(cur_filename):
                    with open(cur_filename, 'wb') as f_pcm:
                        f_pcm.write(payload)

                else:
                    print "[ERROR] Not able to create a Response PCM file \n"

                Error_Status = compare_files(ref_filename, cur_filename)

            #copy the header or the json response from the server

            elif content_type == "application/json":
                with open(get_filename('json', output_filename, outputfolder), 'w') as f_json:
                    f_json.write(payload)
        except:
            print "\n[ERROR] Can't Create Reference PCM or Response JSON files!"
            Error_Status = 1

答

看来您有时会为每个请求找回两个PCM块.以前，第二个条目为空.

It appears you are sometimes getting two PCM blocks back for each request. Previously the second entry was empty.

以下内容将在每个文件的末尾添加一个段号.它基于我的原始代码，因此您需要将更改应用于当前的完整脚本:

The following will add a segment number to the end of each file. It is based on my original code, so you will need to apply the changes to your full current script:

    data = "MIME-Version: 1.0\nContent-Type: {}\n{}".format(res.getheader('content-type'), res.read())
    msg = email.message_from_string(data)
    segment = 1

    for part in msg.walk():
        content_type = part.get_content_type()
        payload = part.get_payload()

        if content_type == "audio/x-wav" and len(payload):
            pcm_filename = '{}_{}'.format(output_filename, segment)
            segment += 1

            ref_filename = get_filename('pcm', pcm_filename + '_ref', LNG)
            if not os.path.exists(ref_filename):
                with open(ref_filename, 'wb') as f_pcm:
                    f_pcm.write(payload)

            cur_filename = get_filename('pcm', pcm_filename, LNG)
            with open(cur_filename, 'wb') as f_pcm:
                f_pcm.write(payload)

            compare_files(ref_filename, cur_filename)

        elif content_type == "application/json":
            with open(get_filename('json', output_filename, LNG), 'w') as f_json:
                f_json.write(payload)

您还可以更改以下行:

output_filename = "".join([x if x.isalnum() else "_" for x in required_text[:80]]).replace('__', '_').strip('_')

这将具有从输出文件名中删除所有双下划线或尾随下划线的作用.

This will have the effect of removing any double underscores or trailing underscores from your output file names.

或者，如果要将所有段附加在一起，则可以尝试以下版本.不幸的是，我无法重新创建多段响应，因此无法对其进行测试，以查看是否可以将各个段附加在一起并使其仍然正确播放:

Alternatively, if you want to append all of the segments together, you could try something like the following version. Unfortunately, I was not able to recreate the multi-segment response and so was not able to test this to see if it is possible to just append the various segments together and for it to still play correctly:

    data = "MIME-Version: 1.0\nContent-Type: {}\n{}".format(res.getheader('content-type'), res.read())
    msg = email.message_from_string(data)
    wav_data = []

    for part in msg.walk():
        content_type = part.get_content_type()
        payload = part.get_payload()

        if content_type == "audio/x-wav" and len(payload):
            wav_data.append(payload)
        elif content_type == "application/json":
            with open(get_filename('json', output_filename, LNG), 'w') as f_json:
                f_json.write(payload)

    if len(wav_data):
        payload = ''.join(wav_data)

        ref_filename = get_filename('pcm', output_filename + '_ref', LNG)
        if not os.path.exists(ref_filename):
            with open(ref_filename, 'wb') as f_pcm:
                f_pcm.write(payload)

        cur_filename = get_filename('pcm', output_filename, LNG)
        with open(cur_filename, 'wb') as f_pcm:
            f_pcm.write(payload)

        compare_files(ref_filename, cur_filename)

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