Support ign files created with lavf

[aizazq25]

i am trying to convert this unknown format to .mp4 (i renamed the first 3 letters inside from IGN TO FLV so that i could parse it and added .FLV format to it)

$ ffmpeg -i /Users/abcd/Desktop/0aa1df70-9a0b-49a0-9fd8-e49bbc26bd3f.flv /Users/abcd/Desktop/0aa1df70-9a0b-49a0-9fd8-e49bbc26bd3f.mp4
ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers

built on Oct 8 2014 19:37:09 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
configuration: --prefix=/Volumes/Ramdisk?/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --enable-libvidstab --enable-libx265 --arch=x86_64 --enable-runtime-cpudetect
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100

[flv @ 0x7fe3c981e000] Stream discovered after head already parsed
[flv @ 0x7fe3c981e000] Stream #0: not enough frames to estimate rate; consider increasing probesize
[flv @ 0x7fe3c981e000] Could not find codec parameters for stream 0 (Video: none, 200 kb/s): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[flv @ 0x7fe3c981e000] Could not find codec parameters for stream 1 (Audio: mp3, 44100 Hz, stereo): unspecified frame size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, flv, from '/Users/abcd/Desktop/0aa1df70-9a0b-49a0-9fd8-e49bbc26bd3f.flv':

Metadata:

major_brand : qt
minor_version : 537199360
compatible_brands: qt
encoder : Lavf55.15.100

Duration: 00:29:37.73, start: 1584694.072000, bitrate: 590 kb/s

Stream #0:0: Video: none, 200 kb/s, 1k tbr, 1k tbn, 1k tbc
Stream #0:1: Audio: mp3, 44100 Hz, stereo
Stream #0:2: Data: none

[abuffer @ 0x7fe3c96002a0] Unable to parse option value "(null)" as sample format

Last message repeated 1 times

[abuffer @ 0x7fe3c96002a0] Error setting option sample_fmt to value (null).
[graph 0 input from stream 0:1 @ 0x7fe3c96003a0] Error applying options to the filter.
Error opening filters!

$ ffmpeg -v 9 -loglevel 99 -i /Users/abcd/Desktop/0aa1df70-9a0b-49a0-9fd8-e49bbc26bd3f.flv
ffmpeg version 2.4.2 Copyright (c) 2000-2014 the FFmpeg developers

built on Oct 8 2014 19:37:09 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
configuration: --prefix=/Volumes/Ramdisk?/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --enable-libvidstab --enable-libx265 --arch=x86_64 --enable-runtime-cpudetect
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100

Splitting the commandline.
Reading option '-v' ... matched as option 'v' (set logging level) with argument '9'.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument '99'.
Reading option '-i' ... matched as input file with argument '/Users/AixAaZ/Desktop/0aa1df70-9a0b-49a0-9fd8-e49bbc26bd3f.flv'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option v (set logging level) with argument 9.
Successfully parsed a group of options.
Parsing a group of options: input file /Users/AixAaZ/Desktop/0aa1df70-9a0b-49a0-9fd8-e49bbc26bd3f.flv.
Successfully parsed a group of options.
Opening an input file: /Users/AixAaZ/Desktop/0aa1df70-9a0b-49a0-9fd8-e49bbc26bd3f.flv.
[flv @ 0x7f942a800000] Format flv probed with size=2048 and score=100
[flv @ 0x7f942a800000] Before avformat_find_stream_info() pos: 13 bytes read:32768 seeks:0
[flv @ 0x7f942a800000] Skipping flv packet: type 14, size 1, flags 0.
[flv @ 0x7f942a800000] Stream discovered after head already parsed
[flv @ 0x7f942a800000] Probe buffer size limit of 5000000 bytes reached
[flv @ 0x7f942a800000] Stream #0: not enough frames to estimate rate; consider increasing probesize
[flv @ 0x7f942a800000] Could not find codec parameters for stream 0 (Video: none, 200 kb/s): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[flv @ 0x7f942a800000] Could not find codec parameters for stream 1 (Audio: mp3, 44100 Hz, stereo): unspecified frame size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[flv @ 0x7f942a800000] After avformat_find_stream_info() pos: 5267226 bytes read:5299990 seeks:0 frames:1
Input #0, flv, from '/Users/abcd/Desktop/0aa1df70-9a0b-49a0-9fd8-e49bbc26bd3f.flv':

Metadata:

major_brand : qt
minor_version : 537199360
compatible_brands: qt
encoder : Lavf55.15.100

Duration: 00:29:37.73, start: 1584694.072000, bitrate: 590 kb/s

Stream #0:0, 0, 1/1000: Video: none, 200 kb/s, 1k tbr, 1k tbn, 1k tbc
Stream #0:1, 0, 1/1000: Audio: mp3, 44100 Hz, stereo
Stream #0:2, 1, 1/1000: Data: none, 0/1

Successfully opened the file.
At least one output file must be specified
[AVIOContext @ 0x7f9429e00100] Statistics: 5299990 bytes read, 0 seeks

sample file ​https://www.dropbox.com/s/wh338g07dll6ze8/0aa1df70-9a0b-49a0-9fd8-e49bbc26bd3f?dl=0 since i already had it uploaded, i didn't re upload, please download sample from the given link

[cehoyos]

How was the file created?

[aizazq25]

the file was made to play in an android app using ffmpeg

[cehoyos]

Could you add the name of the app?

[aizazq25]

this is the app
​https://www.dropbox.com/s/1l3jc3lmwddva11/Ignitor.apk?dl=0
you cannot find it in google play
and you cannot check it out by installing as it requires username and password so u need to check the code of the app

[cehoyos]

How is this app distributed?

[aizazq25]

this app is available on aakash i tutor (educational tablet ) and the videos can be played only by this app...(the app uses ffmpeg to play them). i want to convert this videos to a playable format using ffmpeg...the sample i've provided, i need to convert dozens of them ..i would be greatful to you if you help me out

[cehoyos]

Apparently a particularly malicious case of copyright violation by Aakash iTutor and krishnareddy.

[cehoyos]

Replying to aizazq25:

i would be greatful to you if you help me out

Did you already send an email to Aakash iTutor and ask them for the FFmpeg source code?

[richardpl]

Is sample file still available?

[cehoyos]

​http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket4093/