qtmux fails with crypto module

Sat Jul 16 12:50:31 UTC 2016

On Sat, Jul 16, 2016 at 8:25 AM, Hallo32 <Hallo32 at gmx.net> wrote:

>
>
> Am 16.07.2016 um 05:28 schrieb Thiago Sousa Santos:
>
>> On Fri, Jul 15, 2016 at 5:30 AM, Hallo32 <Hallo32 at gmx.net> wrote:
>>
>> Hello list,
>>>
>>> if I add the encryption and decryption to the working gstreamer pipeline
>>> bellow.
>>>
>>>      gst-launch-1.0 filesrc location=big_buck_bunny_1080p_h264.mov
>>>      typefind=true ! qtdemux name=demux demux.video_0   ! queue   !
>>>      video/x-h264  ! h264parse ! mux.  demux.audio_0   ! queue  !
>>>      audio/mpeg  ! aacparse  ! queue  ! mux. mpegtsmux name=mux  !
>>>      tsdemux ! video/x-h264 ! queue ! vpudec frame-drop=false !
>>>      imxv4l2sink name=videosink force-aspect-ratio=true
>>>      max-lateness=1000000 sync=true
>>>
>>>
>>>      gst-launch-1.0 filesrc location=big_buck_bunny_1080p_h264.mov
>>>      typefind=true ! crypto mode=enc ! crypto mode=dec ! qtdemux
>>>      name=demux demux.video_0 ! queue   ! video/x-h264  ! h264parse  !
>>>      mux.  demux.audio_0   ! queue  ! audio/mpeg  ! aacparse  !  queue  !
>>>      mux. mpegtsmux name=mux  ! tsdemux ! video/x-h264 ! queue ! vpudec
>>>      frame-drop=false ! imxv4l2sink name=videosink
>>>      force-aspect-ratio=true max-lateness=1000000 sync=true
>>>
>>>
>>> The command fails with
>>>
>>>      0:00:00.089051186  1047  0x1838960 LOG                    qtmux
>>>
>>>
>>> /bamboo/agent-home/xml-data/build-dir/MSSNIC-GR-JOB1/yocto/build.imx6qsabreauto-avb/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/gstreamer1.0-plugins-good/1.4.1-r0/gst-plugins-good-1.4.1/gst/isomp4/gstqtmux.c:3704:gst_qt_mux_register:
>>>      Registering muxers
>>>      0:00:00.091218369  1047  0x1838960 LOG                    qtmux
>>>
>>>
>>> /bamboo/agent-home/xml-data/build-dir/MSSNIC-GR-JOB1/yocto/build.imx6qsabreauto-avb/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/gstreamer1.0-plugins-good/1.4.1-r0/gst-plugins-good-1.4.1/gst/isomp4/gstqtmux.c:3742:gst_qt_mux_register:
>>>      Finished registering muxers
>>>      0:00:00.091331379  1047  0x1838960 LOG                    qtmux
>>>
>>>
>>> /bamboo/agent-home/xml-data/build-dir/MSSNIC-GR-JOB1/yocto/build.imx6qsabreauto-avb/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/gstreamer1.0-plugins-good/1.4.1-r0/gst-plugins-good-1.4.1/gst/isomp4/gstqtmux.c:3748:gst_qt_mux_register:
>>>      Registering tags
>>>      0:00:00.091419719  1047  0x1838960 LOG                    qtmux
>>>
>>>
>>> /bamboo/agent-home/xml-data/build-dir/MSSNIC-GR-JOB1/yocto/build.imx6qsabreauto-avb/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/gstreamer1.0-plugins-good/1.4.1-r0/gst-plugins-good-1.4.1/gst/isomp4/gstqtmux.c:3754:gst_qt_mux_register:
>>>      Finished registering tags
>>>      ====== IMXV4L2SINK: 4.0.3 build on Mar 31 2016 12:58:06. ======
>>>      Setting pipeline to PAUSED ...
>>>      display(/dev/fb0) resolution is (1920x1080).
>>>      [INFO]    Product Info: i.MX6Q/D/S
>>>      ====== VPUDEC: 4.0.3 build on Mar 31 2016 12:58:10. ======
>>>           wrapper: 1.0.58 (VPUWRAPPER_ARM_LINUX Build on Mar 31 2016
>>>      12:57:32)
>>>           vpulib: 5.4.28
>>>           firmware: 3.1.1.46063
>>>      Pipeline is PREROLLING ...
>>>      ERROR: from element /GstPipeline:pipeline0/GstQTDemux:demux: This
>>>      file is incomplete and cannot be played.
>>>      Additional debug info:
>>>
>>>
>>> /bamboo/agent-home/xml-data/build-dir/MSSNIC-GR-JOB1/yocto/build.imx6qsabreauto-avb/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/gstreamer1.0-plugins-good/1.4.1-r0/gst-plugins-goo
>>>
>>>
>>> Do you have an idea why it fails and how it can be fixed?
>>> Did I miss any important information?
>>>
>>> Can you provide a more complete log? The crypto element pair is likely
>> modifying the stream somehow. Looking closer at the qtdemux logs might
>> give
>> us a hint on what exactly was modified.
>>
> Which log settings do you want? Give me the settings and you will get
> exactly the log you want.
>

GST_DEBUG=qtdemux:9 should be enough

>
> You can try just to do "filesrc ! crypto mode=enc ! crypto mode=dec !
>> filesink" and check if the resulting file got modified somehow. It should
>> be the same, right?
>>
>
> It should be same file again but they are not exactly the same.
> The encrypted ones has 5 bytes added at the end of the file. Each byte has
> the value 0x0A. Maybe some padding for the encryption to get the necessary
> block size for the encryption.
> The other bytes are identical with the source file.
>

Does this file play with qtdemux?

>
>>> GStreamer Version:
>>> gst-launch-1.0 --version
>>> gst-launch-1.0 version 1.4.1
>>> GStreamer 1.4.1
>>> Unknown package origin
>>>
>>> Unlikely to fix the issue as it is likely in gst-crypto, but latest
>> release
>> is 1.8, might be worth trying to upgrade.
>>
> I have tried 1.8 before I send the mail to the list. I doesn't fix the
> problem.
>
> Source gst-crypto: https://github.com/RidgeRun/gst-crypto Branch:
>>> release-1.0
>>>
>>> Best regards
>>>
>>>
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>>> gstreamer-devel at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>>
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>>
> Best regards
>
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>

-- 
Thiago Sousa Santos
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