索尼摄像机MTS视频文件片段碎片恢复无缝组合修复技术

MTS视频文件删除后恢复分段损坏

视频文件损坏,录像器材是是索尼摄像机,视频格式为MTS, 误删除了,删除后没有二次破坏数据操作,既没有拍新的视频,也没有存入过其它文件,但是恢复出来的视频却是断断续续的,一个20分钟内容恢复后却是20多段小文件,文件头尾时有出现其它日期的内容画面。

碎片组合修复技术解决MTS视频文件问题

这一个问题属于技术难度较高的,通过代码检查可以推断出这是由于平常久未格式化磁盘造成的数据碎片。要解决这一问题,必须要对MTS视频结构有非常深入的研究,MTS视频结构和MOV或MP4的封装是不同的,经测试和对比,通过MOV或MP4视频文件的修复思路行不通。通过对MTS的文件信息(附在文件后面)查询,发现MTS并不是MPEG编码格式。因此得根据MTS的编码特征来处理帧与帧的连接和组合,从而解决问题。以下为MTS视频文件信息,供参考修复:

Video
ID                                         4113 (0x1011)
Menu ID                                    1 (0x1)
Format                                     AVC
Format/Info                                Advanced Video Codec
Format profile                             High@L4
Format settings                            CABAC / 2 Ref Frames
Format settings, CABAC                     Yes
Format settings, Reference frames          2 frames
Format settings, GOP                       M=3, N=12
Codec ID                                  27
Duration                                   19 s 120 ms
Bit rate mode                              Variable
Bit rate                                   21.3 Mb/s
Maximum bit rate                           21.6 Mb/s
Width                                      1 920 pixels
Height                                     1 080 pixels
Display aspect ratio                      16
Frame rate                                 25.000 FPS
Color space                                YUV
Chroma subsampling                        4
Bit depth                                  8 bits
Scan type                                  Interlaced
Scan type, store method                    Separated fields
Scan order                                 Top Field First
Bits/(Pixel*Frame)                        0.41
Stream size                                48.4 MiB (89%)
Audio
ID                                         4352 (0x1100)
Menu ID                                    1 (0x1)
Format                                     PCM
Format settings                            Big / Signed
Muxing mode                                Blu-ray
Codec ID                                  128
Duration                                   19 s 195 ms
Bit rate mode                              Constant
Bit rate                                   1 536 kb/s
Channel(s)                                 2 channels
Channel layout                             L R
Sampling rate                              48.0 kHz
Bit depth                                  16 bits
Delay relative to video                    -80 ms
Stream size                                3.51 MiB (6%)

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转载自blog.csdn.net/QQ2480572734/article/details/119271700