下载 vimeo 视频时，我的下载总是停在 99%。我留下了两个 m4s 文件集合；一种用于视频，一种用于音频流。
我尝试了所有可能的解决方案，但没有一个对我有用。将扩展名重命名为 mp4 不起作用，与 ffmpeg 的连接也不起作用。我意识到视频流是由一个 init.mp4 文件创建的，后面跟着其他片段一一创建。视频播放器在单独的文件中获取有关流质量的信息，通常以文本格式。然后，它使用带有视频标头的 init.m4s 文件作为启动，并将片段按照正确的顺序一一粘贴到该文件上。相同的过程也适用于音频流。
我使用浏览器、hexeditor 和 ffmpeg 的开发工具找到了这个解决方案：
该文件包含有关流的所有信息。有五个视频流和三个音频流的描述。 1280x720 视频流看起来像这样：
{
"id": "b522db58",
"base_url": "video/",
"format": "dash",
"mime_type": "video/mp4",
"codecs": "avc1.640020",
"bitrate": 2895000,
"avg_bitrate": 1068000,
"duration": 6787.88,
"framerate": 25,
"width": 1280,
"height": 720,
"max_segment_duration": 7,
"init_segment": "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",
"index_segment": "b522db58.mp4?r=dXMtd2VzdDE%3D&range=831-14434",
"segments": [
{
"start": 0,
"end": 6.08,
"url": "b522db58.mp4?r=dXMtd2VzdDE%3D&range=14435-328375",
"size": 313940
},
{
您可以通过查看尺寸来识别正确的段
"audio": [
{
"id": "d27f1f72",
"base_url": "audio/",
"format": "dash",
"mime_type": "audio/mp4",
"codecs": "mp4a.40.2",
"bitrate": 191000,
"avg_bitrate": 191000,
"duration": 6787.84,
"channels": 2,
"sample_rate": 48000,
"max_segment_duration": 8,
"init_segment": "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",
"index_segment": "d27f1f72.mp4?r=dXM%3D&range=710-14325",
"segments": [
{
"start": 0,
"end": 5.994666666666666,
"url": "d27f1f72.mp4?r=dXM%3D&range=14326-157787",
"size": 143461
},
创建一个值为 init_segmet 的文件 audio_start.mp4 并使用 https://www.base64decode.org/ 对它进行解码 .
按正确的顺序将audio_start.mp4 与所有其他.m4s 文件连接起来。 （工具 -> 文件工具 -> 连接）。另存为音频.mp4
使用 ffmpeg 并加入两个流
ffmpeg -i video.mp4 -i audio.mp4 -c copy output.mp4
我知道这已经很旧了，但我刚刚完成了这样的项目。请注意，至少有两种类型的 Vimeo 播放列表初始化段文件类型（扩展名）： .m4s 和 .mp4 。在上面的情况下，您还需要下载 index_segment 并将其连接起来。如果您没有 {pathsig}.mp4&r={hex}&range={#-#} 您可能会有egment.m4s?pathsig={hex}&r={hex}&sid={#}&st={video|audio} 。如果两种文件类型的连接过程相同。