[FFmpeg-user] [mp4 @ 00000000002ff260] Malformed AAC bitstream detected:

[Bikash Kumar Sinha]

Thanks a ton Simon.

I was able to fixe my issues using the correct filters. Its all working
good now.

Thanks again and really appreciate it
Bikash


On Wed, Jul 23, 2014 at 11:05 AM, Simon Thelen <ffmpeg-user at c-14.de> wrote:

> On 23/07/14 at 10:20, Bikash Kumar Sinha wrote:
> > q1 - http://www.datafilehost.com/d/ef421240
> > a1 - http://www.datafilehost.com/d/d301f7e6
> >
> > C:\Bikash\temp\VideoMerge\upload\ffmpeg\bin>ffmpeg -i
> > "concat:q1.mp4|a1.mp4" -c copy output.mp4
> First of all, the concat protocol won't work with mp4s.
> > *[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002ae88a0] Found duplicated MOOV Atom.
> > Skipped it*
> > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'concat:q1.mp4|a1.mp4':
> >   Metadata:
> >     encoder         : Lavf55.48.101
> >     major_brand     : isom
> >     minor_version   : 512
> >     compatible_brands: isomiso2avc1mp41
> >   Duration: 00:00:07.27, start: 0.025057, bitrate: 6497 kb/s
> >     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
> > 640x360 [SAR 1:1 DAR 16:9], 315 kb/s, 15 fps, 15 tbr, 15360 tbn, 30 tbc
> > (default)
> >     Metadata:
> >       handler_name    : VideoHandler
> >     Stream #0:1(eng): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo,
> > s16p, 136 kb/s (default)
> >     Metadata:
> >       handler_name    : SoundHandler
> > Output #0, mp4, to 'output.mp4':
> >   Metadata:
> >     compatible_brands: isomiso2avc1mp41
> >     major_brand     : isom
> >     minor_version   : 512
> >     encoder         : Lavf55.48.101
> >     Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p,
> > 640x360 [SAR 1:1 DAR 16:9], q=2-31, 315 kb/s, 15 fps, 15360 tbn, 15360
> tbc
> > (default)
> >     Metadata:
> >       handler_name    : VideoHandler
> >     Stream #0:1(eng): Audio: mp3 (i[0][0][0] / 0x0069), 44100 Hz, stereo,
> > 136 kb/s (default)
> >     Metadata:
> >       handler_name    : SoundHandler
> > Stream mapping:
> >   Stream #0:0 -> #0:0 (copy)
> >   Stream #0:1 -> #0:1 (copy)
> > Press [q] to stop, [?] for help
> > frame=  109 fps=0.0 q=-1.0 Lsize=     405kB time=00:00:07.14 bitrate=
> > 464.1kbits/s
> > video:280kB audio:119kB subtitle:0kB other streams:0kB global headers:0kB
> > muxing overhead: 1.294278%
> Second, I found your problem. q1.mp4 is h264 (High), while a1.mp4 is
> h264 (Baseline). This won't work with either the concat protocol or the
> concat demuxer (because the codecs aren't the same). You'll have to use
> the concat filter (which also means that you will need to reencode the
> output). You can read the wiki for help with the filter:
>
> https://trac.ffmpeg.org/wiki/How%20to%20concatenate%20(join,%20merge)%20media%20files#filter
>
> --
> Simon Thelen
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