I can't capture android screen using adb screen record tool

android android-mediacodec screen-recording
jmacedo picture jmacedo · Feb 2, 2014 · Viewed 15.8k times · Source

I have a nexus 4 with android KitKat.

I tried screen recording using the following commands:

adb shell screenrecord --verbose /sdcard/demo.mp4

adb shell screenrecord --bit-rate 8000000 --time-limit 30 /sdcard/kitkat.mp4

Both times, the commands returned this message: 

Main display is 768x1280 @60.00fps (orientation=0)
Configuring recorder for 768x1280 video at 4.00Mbps
ERROR: unable to create video/avc codec instance

In the debug console I had open in AndroidStudio, the following log messages were shown:

02-02 18:16:29.058     176-4045/? E/OMX-VENC-720p﹕ Is component secure 0
02-02 18:16:29.058     176-4045/? E/OMX-VENC-720p﹕ ERROR: Omx_venc::Comp Init Returning failure
02-02 18:16:29.058     176-4045/? E/OMX-VENC-720p﹕ ERROR: venc_open failed
02-02 18:16:29.058     176-4045/? E/OMX-VENC-720p﹕ Destroy C2D instance
02-02 18:16:29.058  11072-11086/? E/ACodec﹕ Unable to instantiate a decoder for type 'video/avc'.
02-02 18:16:29.058  11072-11085/? E/MediaCodec﹕ Codec reported an error. (omx error 0x80001003, internalError -2147483648)

Does anybody got any idea on how to solve this? (I tried smaller resolutions, but with no success)

Answer

AntoineP picture AntoineP · Feb 28, 2014

I got the same problem...and succeed to solve it...but I do not know how...

When I ran:

$>adb.exe shell screenrecord --verbose /sdcard/kitkat.mp4

I got this error:

Main display is 768x1280 @60.00fps (orientation=0) Configuring recorder for 768x1280 video at 4.00Mbp ERROR: unable to create video/avc codec instance

And to solve my problem, I first lowered the bitrate:

$>adb.exe shell screenrecord --bit-rate 1000000 --time-limit 30 --verbose /sdcard/kitkat.mp4

And then when I ran the default command...:

$>adb.exe shell screenrecord --verbose /sdcard/kitkat.mp4

It works...

Maybe because I also re-start the adb server after the first error...

Very strange...

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