所以使用ffmpeg
/usr/local/bin/ffmpeg -i track.m4a -vn -c:a aac -b:a 192k -f segment -segment_list 93_jrf2niqb7n2s8pzjopkqvbbw1wmzz3foqrsa93bm.m3u8 -segment_time 120 -segment_format_options movflags=faststart 93_jrf2niqb7n2s8pzjopkqvbbw1wmzz3foqrsa93bm.%03d.m4a
创建播放列表文件
#EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-ALLOW-CACHE:YES
#EXT-X-TARGETDURATION:121
#EXTINF:120.000726,
93_jrf2niqb7n2s8pzjopkqvbbw1wmzz3foqrsa93bm.000.m4a
#EXTINF:119.883175,
93_jrf2niqb7n2s8pzjopkqvbbw1wmzz3foqrsa93bm.001.m4a
#EXT-X-ENDLIST
然后使用mediastreamvalidator我得到以下输出，这让我相信有错误，我不知道如何解决。我假设ffmpeg正在抬高分段。
mediastreamvalidator http://**OMIT**/AMP/1/92_y7lu9u1qy5wsw2fqn61mankqof7lkuu5qvk7asv5.m3u8
mediastreamvalidator: Version 1.2(160525)
[/AMP/1/92_y7lu9u1qy5wsw2fqn61mankqof7lkuu5qvk7asv5.m3u8] Started root playlist download
[/AMP/1/92_y7lu9u1qy5wsw2fqn61mankqof7lkuu5qvk7asv5.m3u8] Started media playlist download
Error injecting segment data
Can't deal with multiple sample timings per sample buffer
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[/AMP/1/92_y7lu9u1qy5wsw2fqn61mankqof7lkuu5qvk7asv5.m3u8] All media files delivered and have end tag, stopping
--------------------------------------------------------------------------------
http://**OMIT**/AMP/1/92_y7lu9u1qy5wsw2fqn61mankqof7lkuu5qvk7asv5.m3u8
--------------------------------------------------------------------------------
Processed 1 out of 2 segments
Average segment duration: 119.941950
Total segment bitrates (all discontinuities): average: 130.88 kb/s, max: 131.25 kb/s
Discontinuity: sequence: 0, parsed segment count: 1 of 2, duration: 239.884 sec, average: 130.88 kb/s, max: 131.25 kb/s
Track ID: 1
Audio Codec: AAC-LC
Audio sample rate: 44100 Hz
Audio channel layout: Stereo (L R)
所以，我的问题是＆＃34;错误注入段数据＆＃34;和＆＃34;不能处理每个样本缓冲区的多个样本计时＆＃34;为什么这个部分搞砸了？
答案 0 :(得分：0)
我还在mediaStreamValidator中遇到了这两个错误并设法修复它们
1）“无法处理每个样本缓冲区的多个样本计时” - 当样本持续时间设置为“每个样本”时，fMP4块会发生这种情况。 mediaStreamValidator要求使用默认的样本持续时间，等于块中的所有轨道样本，轨道相关原子中有特殊标志为此
2）“注入段数据时出错” - 表示验证器无法下载块进行分析。不是因为网络问题，而是出于其他原因。
就我而言，m3u8包含＃EXT-X-BYTERANGE和＃EXT-X-MAP：URI ... BYTERANGE标签。 我在本地使用SimpleHTTPServer进行测试（python oneliner，在MacOS中很受欢迎）。事实证明，SimpleHTTPServer对远程请求的工作很糟糕，在没有适当范围的情况下提供这些文件。因此验证器获得了完整的块而不是字节数据。
切换到node.js后，http-server而不是SimpleHTTPServer错误立即消失