Having trouble joining various FLV files using mkvmerge

[ragz4ragz]

Hi All,

I am into releasing TV stuff and after getting help from this forum I have started downloading TV shows from a website colors.in.com/in/24/ using AdobeHDS.php technique. Initially downloading was easy as the show was posted in a single link. But since last 5-6 episodes these people have started posting episodes in 10 parts. Now using the same AdobeHDS technique I still downloaded those 10 parts and started joining them using append option of mkvmerge/mkvtoolnix. All was fine till 8th episode and these people (people who are behind uploading these videos) went to another extent and now the downloaded parts cannot be joined without re-encoding them. Out of the 10 parts these people upload, 1 or 2 parts cannot be joined with rest of the parts due to some info not matching with respect to video track.


The parts I download using AdobeHDs gets downloaded into flv format. And when I try to join these 10 parts, I get error as follows :


"The track number 0 from the file 'Part 5.flv' can probably not be appended correctly to the track number 0 from the file 'Part 4.flv': The codec's private data does not match (lengths: 39 and 41). Please make sure that the resulting file plays correctly the whole time. The author of this program will probably not give support for playback issues with the resulting file."


I have tried joining/appending part 4 and part 5. Because I know that the problem is with Part 5. Now below are the mediainfo details of both the parts.


Part 4 MediaInfo :

General
Complete name                            : C:Part 4.flv
Format                                   : Flash Video
File size                                : 20.2 MiB
Duration                                 : 4mn 55s
Overall bit rate                         : 573 Kbps


Video
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L3.0
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Codec ID                                 : 7
Duration                                 : 4mn 55s
Bit rate                                 : 568 Kbps
Width                                    : 640 pixels
Height                                   : 360 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.082
Stream size                              : 20.0 MiB (99%)


Audio
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 10
Duration                                 : 4mn 55s
Bit rate                                 : 29.5 Kbps
Channel(s)                               : 1 channel
Channel positions                        : Front: C
Sampling rate                            : 44.1 KHz
Compression mode                         : Lossy
Stream size                              : 1.04 MiB (5%)

Part 5 MediaInfo :

General
Complete name                            : Part 5.flv
Format                                   : Flash Video
File size                                : 21.1 MiB
Duration                                 : 4mn 57s
Overall bit rate                         : 594 Kbps


Video
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Baseline@L3.0
Format settings, CABAC                   : No
Format settings, ReFrames                : 1 frame
Codec ID                                 : 7
Duration                                 : 4mn 57s
Bit rate                                 : 581 Kbps
Width                                    : 640 pixels
Height                                   : 360 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.084
Stream size                              : 20.6 MiB (98%)


Audio
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 10
Duration                                 : 4mn 57s
Bit rate                                 : 32.1 Kbps
Channel(s)                               : 1 channel
Channel positions                        : Front: C
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Stream size                              : 1.14 MiB (5%)

As you can see from the above Media Info, under Video part details such as Format profile, Format settings CABAC and Format settings ReFrames have different values for both the files. Apart from Part 5.flv, all other 9 files have the same values for Format profile, CABAC and Reframes. And only part 5 has different values. I tried downloading this part 5 three times and always get with the same settings.


This example is with respect to one episode. In the past I used to get 2-3 parts with the settings of Part 5 given above wherein CABAC value would be No, Reframes would be 1 and Format Profile would be Baseline @L3.0

Hence what I really want to know is, is there any procedure to make part 5 correct/fixed so that it gets value of CABAC as Yes, Reframes would be 4 and Format Profile would be HIGH @L3.0

If I am successful in getting this part 5 correct then I can append all other 9 parts with this. Else I have to re-encode each part again and then join/append them together.


In the future also, it would help me as files like part 5 are 2-3 , and I would be happy fixing these 2-3 files rather than re-encoding all.


Appreciate any help I get in this situation.

If anyone need all 10 files mediainfo, I can provide the same. Also if somebody needs the 2 files of which I gave an example above, I can provide those 2 also.

[roma_turok]

Try join FLV files with Andy's FLV Joiner

[ragz4ragz]

Bro its not just about joining. Please go through the whole thread once before responding. Joining similar flv files isnt the issues. But joining non-similar flv fles is the problem. I used the above suggested FLV joiner. The tool joins the files, but when I play the final file, the video turns plain green color screen for the same duration of the Part 5, I am complaining about.

My real concern isnt joinining. My concern is how to make Part 5's settings same as other parts have it.

[El Heggunte]

First of all, you will have to resample and reencode the audio part
Secondly, and PERHAPS even this suggestion might not work,
extract all the video elementary streams,
join them through "copy /b part01.264 + part 02.264 + .... + part10.264 fullvideo.264",
and only then, use MKVtoolnix, or MP4Box, or whatever.

[ragz4ragz]

I think you mean to say re-encode the video part?? Because the fault is with the video part not the audio part. When I join the parts the errors what I get is ""The track number 0 from the file 'Part 5.flv' can probably not be appended correctly to the track number 0 from the file 'Part 4.flv'". By this i means the problem is with video track not audio track.