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• Scale with scale_vaapi and than pad, got error. Seems ok without "pad"

  24 mai 2023, par huangda1982

  My computer : customized Linux, haswell
I am trying to scale 1280x720 video to 640x450 in 640x480 frame with black borders. To do so, I run this command :

  


  ffmpeg -v warning -hide_banner -init_hw_device vaapi=vaapi0:/dev/dri/renderD128 -hwaccel vaapi -hwaccel_output_format vaapi -hwaccel_device vaapi0 -filter_hw_device vaapi0 -i 'my_video.mp4' -vf 'scale_vaapi=640:450,pad=640:480:0:14' -c:v h264_vaapi -q:v 18 -profile:v main -level 3.1 -c:a aac -q:a 3 -f mp4 out.mp4 -loglevel verbose


  


  And I got this error :

  


  Impossible to convert between the formats supported by the filter &#x27;Parsed_scale_vaapi_0&#x27; and the filter &#x27;auto_scaler_0&#x27;<br />&#xA;Error reinitializing filters!&#xA;Failed to inject frame into filter network: Function not implemented&#xA;Error while processing the decoded data for stream #0:0&#xA;

  


  When I removed the ",pad=640:480:0:14" part, the command continued. I pressed ctrl-c, and did not check the result.

  


  "-q:v 18", "-level 3.1" and "-q:a" options seem not work.

  


  Full message :

  


  [h264 @ 0x55dfeb529340] Reinit context to 1280x720, pix_fmt: yuv420p
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'my_video.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: mp41
    creation_time   : 1970-01-01T00:00:00.000000Z
    encoder         : PotEncoder
  Duration: 00:22:45.01, start: 0.000000, bitrate: 3264 kb/s
  Stream #0:0(und): Video: h264 (Constrained Baseline), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1280x720 [SAR 1:1 DAR 16:9], 3068 kb/s, 23.98 fps, 23.98 tbr, 1199 tbn, 47.96 tbc (default)
    Metadata:
      creation_time   : 1970-01-01T00:00:00.000000Z
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 192 kb/s (default)
    Metadata:
      creation_time   : 1970-01-01T00:00:00.000000Z
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
File 'out.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_vaapi))
  Stream #0:1 -> #0:1 (mp3 (mp3float) -> aac (native))
Press [q] to stop, [?] for help
[h264 @ 0x55dfeb553e40] Reinit context to 1280x720, pix_fmt: vaapi_vld
[graph_1_in_0_1 @ 0x55dfeb6b7580] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
[graph 0 input from stream 0:0 @ 0x55dfebb4d000] w:1280 h:720 pixfmt:vaapi_vld tb:1/1199 fr:1199/50 sar:1/1
[auto_scaler_0 @ 0x55dfebb4f940] w:iw h:ih flags:'bicubic' interl:0
[Parsed_pad_1 @ 0x55dfebb4c700] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_scale_vaapi_0' and the filter 'Parsed_pad_1'
Impossible to convert between the formats supported by the filter 'Parsed_scale_vaapi_0' and the filter 'auto_scaler_0'
Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while processing the decoded data for stream #0:0
[AVIOContext @ 0x55dfeb5522c0] Statistics: 0 seeks, 0 writeouts
[aac @ 0x55dfeb551600] Qavg: 354.000
[aac @ 0x55dfeb551600] 2 frames left in the queue on closing
[AVIOContext @ 0x55dfeb530500] Statistics: 1144787 bytes read, 2 seeks
Conversion failed!


  


• Is there a way to cut movement "dead air" on a screen recording ? [closed]

  16 mai 2023, par Raelbe

  I have got a couple of screen recordings of a painting I've done, and I've managed to concat the files together.

  


  Unfortunately, there is a lot of "dead air" in the video (where I have left my desk, so there is no movement happening on screen) is there a way to cut out this down time ?

  


  I found an example that another artist uses for his screen recordings, so I plugged it in with my file directory's. This is what I used :

  


  .\ffmpeg -f concat -safe 0 -i "merge.txt" -vf npdecimate=hi=64*12:lo=64*5:frac=0.33,seipts=N/30/TB,"setpts=0.25*PTS" -r 30 -crf 30 -an Illu_Test.mp4


  


  I got this error message at the end :

  


  [AVFilterGraph @ 000001cadfe5b1c0] No option name near 'N/30/TB'
[AVFilterGraph @ 000001cadfe5b1c0] Error parsing a filter description around: ,setpts=0.25*PTS
[AVFilterGraph @ 000001cadfe5b1c0] Error parsing filterchain 'npdecimate=hi=64*12:lo=64*5:frac=0.33,seipts=N/30/TB,setpts=0.25*PTS' around: ,setpts=0.25*PTS
Error reinitializing filters!
Failed to inject frame into filter network: Invalid argument
Error while processing the decoded data for stream #0:0`


  


  So I chopped it up a bit and this is what I used to concat the files and it worked perfectly.

  


  .\ffmpeg -f concat -safe 0 -i "merge.txt" -crf 30 -an Illu_Test.mp4


  


  Now, I'm looking to cut out the seconds of no movement. I'm unsure what the -crf command does (as stated I am brand new to this) OG artist states that :

  


  "This is the tolerance level that determines whether there has been enough change between frames or not to be considered as detected motion."

  


  Any help would be appreciated.

  


  (Apologies if the format of this question is wrong)

  


• FFMPEG Kit issue in Banuba Video SDK : "FFmpegKit failed to start on brand"

  10 mai 2023, par Vivek Makwana

  I am trying to integrate Banuba Video Editor sdk in flutter.

  


  The issue i am facing is as below

  


  Banuba sdk works with native code for Android in Flutter

  


  So Banuba requires FFMPEG dependency to define in Native Android

  


  And I am already using 'ffmpeg_kit_flutter' plugin for flutter.

  


  So both the FFMPEG kits are conflicted and some of the functions are not found. due to that I am receiving the below error.

  


  When the app is launched I am receiving this Crash as mentioned

  


  **java.lang.Error: FFmpegKit failed to start on brand: google, model: sdk_gphone_x86, device: generic_x86_arm, api level: 30, abis: x86 armeabi-v7a armeabi, 32bit abis: x86 armeabi-v7a armeabi, 64bit abis: .&#xA;**  at com.arthenica.ffmpegkit.NativeLoader.loadLibrary(NativeLoader.java:50)&#xA;    at com.arthenica.ffmpegkit.NativeLoader.loadFFmpegKit(NativeLoader.java:189)&#xA;    at com.arthenica.ffmpegkit.FFmpegKitConfig.<clinit>(FFmpegKitConfig.java:145)&#xA;    at com.arthenica.ffmpegkit.FFmpegKitConfig.enableFFmpegSessionCompleteCallback(FFmpegKitConfig.java:864)&#xA;    at com.arthenica.ffmpegkit.flutter.FFmpegKitFlutterPlugin.registerGlobalCallbacks(FFmpegKitFlutterPlugin.java:168)&#xA;    at com.arthenica.ffmpegkit.flutter.FFmpegKitFlutterPlugin.init(FFmpegKitFlutterPlugin.java:652)&#xA;    at com.arthenica.ffmpegkit.flutter.FFmpegKitFlutterPlugin.onAttachedToActivity(FFmpegKitFlutterPlugin.java:198)&#xA;    at io.flutter.embedding.engine.FlutterEngineConnectionRegistry.attachToActivityInternal(FlutterEngineConnectionRegistry.java:351)&#xA;    at io.flutter.embedding.engine.FlutterEngineConnectionRegistry.attachToActivity(FlutterEngineConnectionRegistry.java:324)&#xA;    at io.flutter.embedding.android.FlutterActivityAndFragmentDelegate.onAttach(FlutterActivityAndFragmentDelegate.java:194)&#xA;    at io.flutter.embedding.android.FlutterActivity.onCreate(FlutterActivity.java:498)&#xA;    at com.sound.it.MainActivity.onCreate(MainActivity.kt:43)&#xA;    at android.app.Activity.performCreate(Activity.java:8000)&#xA;    at android.app.Activity.performCreate(Activity.java:7984)&#xA;    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)&#xA;    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)&#xA;    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)&#xA;    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)&#xA;    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)&#xA;    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)&#xA;    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)&#xA;    at android.os.Handler.dispatchMessage(Handler.java:106)&#xA;    at android.os.Looper.loop(Looper.java:223)&#xA;    at android.app.ActivityThread.main(ActivityThread.java:7656)&#xA;    at java.lang.reflect.Method.invoke(Native Method)&#xA;    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)&#xA;    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)&#xA;**Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "av_log_default_callback" referenced by "/data/app/~~umF3qlB9U53L4peU9nKYuQ==/com.sound.it-agqiFlNmMe17AHMK5gYIHw==/lib/x86/libffmpegkit.so"...**&#xA;    at java.lang.Runtime.loadLibrary0(Runtime.java:1087)&#xA;    at java.lang.Runtime.loadLibrary0(Runtime.java:1008)&#xA;    at java.lang.System.loadLibrary(System.java:1664)&#xA;    at com.arthenica.ffmpegkit.NativeLoader.loadLibrary(NativeLoader.java:48)&#xA;</clinit>

  


  Looking for the solutions