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• FFmpeg / libmp3lame crash while converting from .wav to .mp3 with vibrato

  1er juillet 2020, par Chitrang

  I have integrated mobile-ffmpeg-full-gpl:4.3.1.LTS library in my android app. And trying to convert .wav file to .mp3 format with vibrato option and libmp3lame encoder.

  


  ffmpegCommand = "-i input.wav " +
                "-af vibrato=f=4 " +
                "-c:a libmp3lame " +
                "-b:a 96k " +
                "-ac 1 " +
                "-ar 44100 " +
                "-y output.mp3"


  


  FFmpeg Logs :

  


  a.b.com I/mobile-ffmpeg: Loading mobile-ffmpeg.
a.b.com I/mobile-ffmpeg: Loaded mobile-ffmpeg-full-gpl-arm64-v8a-4.3.1-lts-20200125.
a.b.com D/mobile-ffmpeg: Callback thread started.
a.b.com I/mobile-ffmpeg: ffmpeg version git-2020-01-25-fd11dd500
a.b.com I/mobile-ffmpeg:  Copyright (c) 2000-2020 the FFmpeg developers
a.b.com I/mobile-ffmpeg:   built with Android (5220042 based on r346389c) clang version 8.0.7 (https://android.googlesource.com/toolchain/clang b55f2d4ebfd35bf643d27dbca1bb228957008617) (https://android.googlesource.com/toolchain/llvm 3c393fe7a7e13b0fba4ac75a01aa683d7a5b11cd) (based on LLVM 8.0.7svn)
a.b.com I/mobile-ffmpeg:   configuration: --cross-prefix=aarch64-linux-android- --sysroot=/files/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/mobile-ffmpeg/prebuilt/android-arm64/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --cc=aarch64-linux-android21-clang --cxx=aarch64-linux-android21-clang++ --target-os=android --enable-neon --enable-asm --enable-inline-asm --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --enable-shared --disable-v4l2-m2m --disable-outdev=v4l2 --disable-outdev=fbdev --disable-indev=v4l2 --disable-indev=fbdev --enable-small --disable-openssl --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-static --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disa
a.b.com I/mobile-ffmpeg:   libavutil      56. 38.100 / 56. 38.100
a.b.com I/mobile-ffmpeg:   libavcodec     58. 65.102 / 58. 65.102
a.b.com I/mobile-ffmpeg:   libavformat    58. 35.101 / 58. 35.101
a.b.com I/mobile-ffmpeg:   libavdevice    58.  9.103 / 58.  9.103
a.b.com I/mobile-ffmpeg:   libavfilter     7. 70.101 /  7. 70.101
a.b.com I/mobile-ffmpeg:   libswscale      5.  6.100 /  5.  6.100
a.b.com I/mobile-ffmpeg:   libswresample   3.  6.100 /  3.  6.100
a.b.com W/mobile-ffmpeg: [wav @ 0x7294a86600] Estimating duration from bitrate, this may be inaccurate
a.b.com W/mobile-ffmpeg: Guessed Channel Layout for Input Stream #0.0 : mono
a.b.com I/mobile-ffmpeg: Input #0, wav, from '/data/user/0/a.b.com/cache/creation/input.wav':
a.b.com I/mobile-ffmpeg:   Duration: 
a.b.com I/mobile-ffmpeg: 00:00:07.15
a.b.com I/mobile-ffmpeg: , bitrate: 
a.b.com I/mobile-ffmpeg: 705 kb/s
a.b.com I/mobile-ffmpeg:     Stream #0:0
a.b.com I/mobile-ffmpeg: : Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono, s16, 705 kb/s
a.b.com I/mobile-ffmpeg: Stream mapping:
a.b.com I/mobile-ffmpeg:   Stream #0:0 -> #0:0
a.b.com I/mobile-ffmpeg:  (pcm_s16le (native) -> mp3 (libmp3lame))
a.b.com I/mobile-ffmpeg: Press [q] to stop, [?] for help
a.b.com I/mobile-ffmpeg: Output #0, mp3, to '/data/user/0/a.b.com/cache/creation/output.mp3':
a.b.com I/mobile-ffmpeg:   Metadata:
a.b.com I/mobile-ffmpeg:     TSSE            : 
a.b.com I/mobile-ffmpeg: Lavf58.35.101
a.b.com I/mobile-ffmpeg:     Stream #0:0
a.b.com I/mobile-ffmpeg: : Audio: mp3 (libmp3lame), 44100 Hz, mono, fltp, 96 kb/s
a.b.com I/mobile-ffmpeg:     Metadata:
a.b.com I/mobile-ffmpeg:       encoder         : 
a.b.com I/mobile-ffmpeg: Lavc58.65.102 libmp3lame
a.b.com I/mobile-ffmpeg: --------- beginning of crash
a.b.com A/libc: psymodel.c:576: void calc_energy(const PsyConst_CB2SB_t *, const FLOAT *, FLOAT *, FLOAT *, FLOAT *): assertion "el >= 0" failed
a.b.com A/libc: Fatal signal 6 (SIGABRT), code -6 (SI_TKILL) in tid 25800 (a.b.com), pid 25800 (a.b.com)


  


  Crash :

  


  --------- beginning of crash
 A/libc: psymodel.c:576: void calc_energy(const PsyConst_CB2SB_t *, const FLOAT *, FLOAT *, FLOAT *, FLOAT *): assertion "el >= 0" failed

? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
? A/DEBUG: Build fingerprint: 'samsung/star2qltecs/star2qltecs:10/QP1A.190711.020/G965WVLS7DTE1:user/release-keys'
? A/DEBUG: Revision: '14'
? A/DEBUG: ABI: 'arm64'
? A/DEBUG: Timestamp: 2020-06-29 15:13:17-0400
? A/DEBUG: pid: 1849, tid: 1849, name: a.b.com  >>> a.b.com <<<
? A/DEBUG: uid: 12171
? A/DEBUG: signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
? A/DEBUG: Abort message: 'psymodel.c:576: void calc_energy(const PsyConst_CB2SB_t *, const FLOAT *, FLOAT *, FLOAT *, FLOAT *): assertion "el >= 0" failed'
? A/DEBUG:     x0  0000000000000000  x1  0000000000000739  x2  0000000000000006  x3  0000007fd65f7bb0
? A/DEBUG:     x4  0000000000000000  x5  0000000000000000  x6  0000000000000000  x7  0000000000000008
? A/DEBUG:     x8  00000000000000f0  x9  7f96d7a39856d151  x10 0000000000000001  x11 0000000000000000
? A/DEBUG:     x12 fffffff0fffffbdf  x13 000000005efa3d4c  x14 001c23c1a79207f5  x15 000079d970d48db2
? A/DEBUG:     x16 00000073e009e8c0  x17 00000073e007afe0  x18 00000073e492c000  x19 0000000000000739
? A/DEBUG:     x20 0000000000000739  x21 00000000ffffffff  x22 0000007fd65fc44c  x23 0000007fd65f8640
? A/DEBUG:     x24 0000007fd65fd120  x25 0000007fd65fd3a8  x26 0000007fd65f8240  x27 0000007fd65f9e40
? A/DEBUG:     x28 00000071f9f60900  x29 0000007fd65f7c50
? A/DEBUG:     sp  0000007fd65f7b90  lr  00000073e002c27c  pc  00000073e002c2a8
? A/DEBUG: backtrace:
? A/DEBUG:       #00 pc 00000000000832a8  /apex/com.android.runtime/lib64/bionic/libc.so (abort+160) (BuildId: 55ce0a7d78144b0290f9746ed1615719)
? A/DEBUG:       #01 pc 00000000000839e8  /apex/com.android.runtime/lib64/bionic/libc.so (__assert2+36) (BuildId: 55ce0a7d78144b0290f9746ed1615719)
? A/DEBUG:       #02 pc 0000000000969c60  /data/app/a.b.com-jXqE8oxytEkfSsn6pcdloQ==/lib/arm64/libavcodec.so


  


  I referred link1, link2 to understand the problem but could not find a solution.

  


• Convert SDR-JPEG to HDR-AVIF [closed]

  27 avril 2024, par Jonas Janzen

  I would like to convert a jpg file into an avif file that is to be saved in HDR10-capable metadata (PQ curve, 2020 color space, 10 bit).

  


  The idea is to save normal SDR images in HDR-capable containers so that they can be displayed in all their glory on HDR-capable displays.

  


  I want to play with inverse tone mapping, to manipulate the output, so I implemented in Python via subprocess.

  


  So far I just want the input image to be saved in AVIF as HDR and look the same at the end as before, so that I can then make changes in the next step.

  


  I used the following command for this :

  


  ffmpeg_command = [
'ffmpeg',

  


  Input File
'-i', temp_file,

  


  Used Library
'-c', 'libaom-av1',

  


  '-still-picture', '1',

  


  Output Metadata
'-pix_fmt', 'yuv420p10le',
'-strict', 'experimental',
'-color_primaries', 'bt2020',
'-color_trc', 'smpte2084',
'-colorspace', 'bt2020nc',
'-color_range', 'pc',

  


  Output File
output_file
]

  


  So far my attempts have only been successful with the HLG characteristic. Here you can see that the images are really brighter in the peaks on my HDR monitor.

  


  With the PQ characteristic curve, the images are far too oversaturated.

  


  I guess this is because the HLG curve is compatible with the gamma curve, but PQ is not.

  


  Now my question is what I need to change.

  


  Which curve does FFMpeg expect as input.

  


  In Python I can change the images mathematically without any problems.

  


  The Example Images are again tone mapped down to jpg, to show what happened.

  


  enter image description here
enter image description here

  


• FFmpeg concatenate video and add watermark

  18 avril 2020, par user7356972

  I have command to overlay two video one on other.

  



  ffmpeg -i input.mp4 -vf "movie= overlay.mov [a]; [1][a]scale2ref[2nd][ref];[2nd][ref]overlay=0:0 [c]"  output.mp4 


  



  Now I want to add water watermark and concatenate a new video append.mov in above command. I have found a command to add watermark.

  



  ffmpeg -i output.mp4 -i watermark.png -filter_complex "overlay=10:10" outputwatermark.mp4


  



  But I want to merge both the command and also need to concatenate append.mov to output.mp4.

  



  Also above overlay two video command takes too long time to process if video size is large. Any suggestion on that(should not affect quality of video) ?

  



  I tried following command to concatenate video.

  



  ffmpeg -i abc.mp4 -i ../input/overlay2.mov append.mp4


  



  The video was not concatenate, below is the output.

  



  ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'abc.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
  Duration: 00:00:37.40, start: 0.000000, bitrate: 474 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 960x540 [SAR 3:4 DAR 4:3], 324 kb/s, 1k fps, 1k tbr, 16k tbn, 2k tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 69 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '../input/overlay2.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    creation_time   : 2020-03-27T16:32:23.000000Z
  Duration: 00:00:37.44, start: 0.000000, bitrate: 3519 kb/s
    Stream #1:0(eng): Video: qtrle (rle  / 0x20656C72), argb(progressive), 640x352, 3295 kb/s, SAR 1:1 DAR 20:11, 25 fps, 25 tbr, 25 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2020-03-27T16:32:23.000000Z
      handler_name    : Apple Video Media Handler
      encoder         : Animation
      timecode        : 00:00:00:00
    Stream #1:1(eng): Data: none (tmcd / 0x64636D74) (default)
    Metadata:
      creation_time   : 2020-03-27T16:32:23.000000Z
      handler_name    : Time Code Media Handler
      timecode        : 00:00:00:00
File 'append.mp4' already exists. Overwrite ? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7ff35a012200] using SAR=3/4
[libx264 @ 0x7ff35a012200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7ff35a012200] profile High, level 5.2
[libx264 @ 0x7ff35a012200] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'append.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.29.100
    Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 960x540 [SAR 3:4 DAR 4:3], q=-1--1, 1k fps, 16k tbn, 1k tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc58.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 69 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc58.54.100 aac
frame=37399 fps=378 q=-1.0 Lsize=    2138kB time=00:00:37.39 bitrate= 468.4kbits/s speed=0.378x    
video:1454kB audio:221kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 27.624002%
[libx264 @ 0x7ff35a012200] frame I:150   Avg QP:11.47  size:  1655
[libx264 @ 0x7ff35a012200] frame P:9423  Avg QP:14.43  size:    52
[libx264 @ 0x7ff35a012200] frame B:27826 Avg QP:17.67  size:    27
[libx264 @ 0x7ff35a012200] consecutive B-frames:  0.8%  0.0%  0.0% 99.2%
[libx264 @ 0x7ff35a012200] mb I  I16..4: 94.0%  4.3%  1.7%
[libx264 @ 0x7ff35a012200] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  0.1%  0.0%  0.0%  0.0%  0.0%    skip:99.8%
[libx264 @ 0x7ff35a012200] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.1%  0.0%  0.0%  direct: 0.0%  skip:99.9%  L0:54.5% L1:45.5% BI: 0.1%
[libx264 @ 0x7ff35a012200] 8x8 transform intra:4.8% inter:84.4%
[libx264 @ 0x7ff35a012200] coded y,uvDC,uvAC intra: 1.6% 2.3% 2.0% inter: 0.0% 0.0% 0.0%
[libx264 @ 0x7ff35a012200] i16 v,h,dc,p: 96%  0%  3%  0%
[libx264 @ 0x7ff35a012200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 58%  9% 28%  1%  1%  1%  1%  1%  1%
[libx264 @ 0x7ff35a012200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 38% 22% 15%  4%  4%  5%  5%  4%  4%
[libx264 @ 0x7ff35a012200] i8c dc,h,v,p: 97%  1%  1%  0%
[libx264 @ 0x7ff35a012200] Weighted P-Frames: Y:1.9% UV:1.9%
[libx264 @ 0x7ff35a012200] ref P L0: 86.3%  8.4%  4.5%  0.8%  0.0%
[libx264 @ 0x7ff35a012200] ref B L0: 75.4% 24.0%  0.5%
[libx264 @ 0x7ff35a012200] ref B L1: 98.1%  1.9%
[libx264 @ 0x7ff35a012200] kb/s:318.42
[aac @ 0x7ff35a013a00] Qavg: 152.336