[FFmpeg-user] Trying to create matching multi-audio-track mp4s from ProRes sources

Harvey Pikelberger communque at gmail.com
Wed Feb 13 19:02:25 EET 2019 

I've got a bunch of 4- and 5-audio-track ProRes sources.
I want to create h.264/mp4 proxies of each, matching the source audio assigns
The FFmpeg code I'm using is tripping up over time code and codec issues.

Here's the code:
-i '/Path/To/ProRes/Source.mov' -map 0 -g 48 -c:v libx264 -profile:v baseline -crf 16 -c:a aac -b:a 256k -vf scale=1280:720 -pix_fmt yuv420p '/Path/To/Mp4/Dest.mp4'

As I understand -map 0 is what conforms the audio assigns.
Not sure what -g 48 is doing, but removing still gets errors.

Here are the errors:
[mp4 @ 0x7fe633006000] You requested a copy of the original timecode track so timecode metadata are now ignored
[mp4 @ 0x7fe633006000] Could not find tag for codec none in stream #2, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Error initializing output stream 0:1 -- 
[aac @ 0x7fe633801e00] Qavg: nan
Conversion failed!



Here's the full console output:
ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers
  built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1_2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gpl --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libspeex --enable-videotoolbox
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Guessed Channel Layout for Input Stream #0.1 : 5.0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Path/To/ProRes/Source.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  ARRI
    creation_time   : 2019-01-30T12:47:45.000000Z
    com.apple.finalcutstudio.media.uuid: 3D1B7ACC-EAFF-477C-AFB7-7FC259FA0B59
    com.arri.camera.CameraId: R0TS
    com.arri.camera.CameraIndex: A
    com.arri.camera.CameraModel: ARRI ALEXA Mini
    com.arri.camera.CameraSerialNumber: 21072
    com.arri.camera.ColorGammaSxS: LOG-C
    com.arri.camera.ExposureIndexAsa: 800
    com.arri.camera.LookFileBurnedIn: No
    com.arri.camera.ProductionInfoOperator: 
    com.arri.camera.NdFilterDensity: 0
    com.arri.camera.NdFilterType: 0
    com.arri.camera.ProductionInfoCinematographer: 
    com.arri.camera.ProductionInfoDirector: 
    com.arri.camera.ProductionInfoLocation: 
    com.arri.camera.ProductionInfoProduction: 
    com.arri.camera.ProductionInfoUser1: 
    com.arri.camera.ProductionInfoUser2: 
    com.arri.camera.ProjectFps: 23976
    com.arri.camera.ReelName: A001R0TS
    com.arri.camera.SensorFps: 23976
    com.arri.camera.ShutterAngle: 1800
    com.arri.camera.SoundReel: 
    com.arri.camera.SupVersion: 5.04.13
    com.arri.camera.SxsSerialNumber: 31256162323390004845
    com.arri.camera.UserDate: 20190130
    com.arri.camera.UserTime: 12h47m45
    com.arri.camera.WhiteBalanceKelvin: 5000
    com.arri.camera.WhiteBalanceTintCc: 0
    com.arri.camera.CameraClipName: A001C001_190130_R0TS.mov
    com.arri.camera.Product: 2
    com.arri.camera.SubProduct: 1
    com.arri.camera.look.name: ARRI 709.AML
    com.arri.camera.look.user_lut: 0
    com.apple.proapps.color.asc-cdl: 
    com.arri.camera.look.lut3d: 
    com.arri.camera.look.lut3d_with_cdl: 
    com.arri.camera.look.video_param_with_target_colorspace: 
    com.arri.camera.ProductionInfoCompany: 
    com.arri.camera.SceneName: 
    com.arri.camera.TakeName: 
    com.arri.camera.audio.Configuration: 
    com.arri.camera.LensSerialNumber: 13054
    com.arri.camera.LensType: Fujinon Alura AZ30-80 T2.8
    com.arri.camera.UnitPreference: Metric
    com.arri.camera.WbTracking: 0
    com.arri.camera.ImageOrientation: 0
    com.arri.camera.ImageSharpness: 0
    com.arri.camera.ImageDetail: 0
    com.arri.camera.ImageDenoising: 0
    com.arri.camera.DynamicMetadataVersion: 65536
    com.arri.camera.audio.BluetoothEnabled: 0
    com.arri.camera.sensor.PhotoSites: 3200x1800
    com.arri.camera.PixelAspectRatio: 0.000000
    com.arri.camera.FramelineFileName1: None
    com.arri.camera.UserPixelMasking: 0
    com.arri.camera.EfIsActive: 0
    timecode        : 12:50:58:15
  Duration: 00:32:55.85, start: 0.000000, bitrate: 994138 kb/s
    Stream #0:0(eng): Video: prores (ap4h / 0x68347061), yuv444p10le(tv, GBR, progressive), 3840x2160, 988342 kb/s, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 24k tbn, 24k tbc (default)
    Metadata:
      creation_time   : 2019-01-30T12:47:45.000000Z
      handler_name    : ?Apple Video Media Handler
      encoder         : Apple ProRes 4444
    Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 5.0, s32 (24 bit), 5760 kb/s (default)
    Metadata:
      creation_time   : 2019-01-30T12:47:45.000000Z
      handler_name    : ?Apple Sound Media Handler
    Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
    Metadata:
      creation_time   : 2019-01-30T12:47:45.000000Z
      handler_name    : ?Time Code Media Handler
      reel_name       : A001R0TS
      timecode        : 12:50:58:15
Stream mapping:
  Stream #0:0 -> #0:0 (prores (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (pcm_s24le (native) -> aac (native))
  Stream #0:2 -> #0:2 (copy)
Press [q] to stop, [?] for help
[libx264 @ 0x7fe633800600] using SAR=1/1
[libx264 @ 0x7fe633800600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fe633800600] profile Constrained Baseline, level 3.1
[libx264 @ 0x7fe633800600] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=48 keyint_min=4 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=16.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[mp4 @ 0x7fe633006000] You requested a copy of the original timecode track so timecode metadata are now ignored
[mp4 @ 0x7fe633006000] Could not find tag for codec none in stream #2, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Error initializing output stream 0:1 -- 
[aac @ 0x7fe633801e00] Qavg: nan
Conversion failed!

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