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• Concatenating on Windows throws "Invalid data found when processing input" while it works on Mac and Linux

  15 février 2020, par miguelmorin

  I need to run a command with a nightly build of FFMPEG to report a bug on the concat protocol. I found it difficult to compile from source with libx264 support on Linux, and I want to spare my Mac computer, so I use the nightly build on Windows from Zeranoe.

  I call this command to concatenate the files :

  ffmpeg -safe 0 concat -i files_to_combine -vcodec libx264 show.mp4

  where files_to_combine is :

  file ./short_DSC_0013.MOV
  
  file ./short_DSC_0014.MOV
  
  file ./short_DSC_0015.MOV
  
  file ./short_DSC_0016.MOV
  
  file ./short_DSC_0017.MOV
  
  file ./short_DSC_0018.MOV
  
  file ./short_DSC_0019.MOV

  I call this command from the directory containing the video files and files_to_combine.

  On Windows with a nightly build, I get the error :

  files_to_combine : Invalid data found when processing input
  

  I changed file ./DSC_0013.MOV to these options, all with the same error :

  file 'short_DSC_0013.MOV'
  
  file '.\short_DSC_0013.MOV'
  
  file 'F:\short_DSC_0013.MOV'

  How can I debug this error, or what is the syntax for concatenating on Windows with a nightly build ?

  Update with log-level 48

  I ran the same command with -v 48 and got :

  F :\brain squids>C :\Users\migue\Desktop\ffmpeg-20200211-f15007a-win64-static\bin\ffmpeg.exe -v 48 -i files_to_combine -vcodec libx264 show.mp4
  ffmpeg version git-2020-02-11-f15007a Copyright (c) 2000-2020 the FFmpeg developers
    built with gcc 9.2.1 (GCC) 20200122
    configuration : —enable-gpl —enable-version3 —enable-sdl2 —enable-fontconfig —enable-gnutls —enable-iconv —enable-libass —enable-libdav1d —enable-libbluray —enable-libfreetype —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libtheora —enable-libtwolame —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxml2 —enable-libzimg —enable-lzma —enable-zlib —enable-gmp —enable-libvidstab —enable-libvorbis —enable-libvo-amrwbenc —enable-libmysofa —enable-libspeex —enable-libxvid —enable-libaom —enable-libmfx —enable-ffnvcodec —enable-cuvid —enable-d3d11va —enable-nvenc —enable-nvdec —enable-dxva2 —enable-avisynth —enable-libopenmpt —enable-amf
    libavutil      56. 39.100 / 56. 39.100
    libavcodec     58. 68.102 / 58. 68.102
    libavformat    58. 38.100 / 58. 38.100
    libavdevice    58.  9.103 / 58.  9.103
    libavfilter     7. 75.100 /  7. 75.100
    libswscale      5.  6.100 /  5.  6.100
    libswresample   3.  6.100 /  3.  6.100
    libpostproc    55.  6.100 / 55.  6.100
  Splitting the commandline.
  Reading option ’-v’ ... matched as option ’v’ (set logging level) with argument ’48’.
  Reading option ’-i’ ... matched as input url with argument ’files_to_combine’.
  Reading option ’-vcodec’ ... matched as option ’vcodec’ (force video codec (’copy’ to copy stream)) with argument ’libx264’.
  Reading option ’show.mp4’ ... matched as output url.
  Finished splitting the commandline.
  Parsing a group of options : global .
  Applying option v (set logging level) with argument 48.
  Successfully parsed a group of options.
  Parsing a group of options : input url files_to_combine.
  Successfully parsed a group of options.
  Opening an input file : files_to_combine.
  [NULL @ 0000021c781784c0] Opening ’files_to_combine’ for reading
  [file @ 0000021c78179580] Setting default whitelist ’file,crypto,data’
  [AVIOContext @ 0000021c781817c0] Statistics : 182 bytes read, 0 seeks
  files_to_combine : Invalid data found when processing input
  

  The contents of files_to_combine is :

  file ’short_DSC_0013.MOV’
  file ’short_DSC_0014.MOV’
  file ’short_DSC_0015.MOV’
  file ’short_DSC_0016.MOV’
  file ’short_DSC_0017.MOV’
  file ’short_DSC_0018.MOV’
  file ’short_DSC_0019.MOV’
  

  Update because of wrong command

  I had mistyped the command. The right command has a -f in front of concat, which I found because the accepted answer was able to make the command work in a similar environment :

  ffmpeg -safe 0 -f concat -i files_to_combine -vcodec libx264 show.mp4

• libavcodec/libx264 : fix reference frame computation based on level

  16 avril 2020, par Josh Brewster

  libavcodec/libx264 : fix reference frame computation based on level
  The current implementation allows passing levels to libavcodec as
  
  integers (such as "31" instead of "3.1").
  However, in this case, the maximum reference frame value per level was
  
  ignored because libavcodec converted the string to 310 instead of 31.
  Since libx264 has correctly parsed the level to int
  
  (x4->params.i_level_idc), we should rely on this value instead of
  
  attempting to parse the level string on our own.
  Signed-off-by : Josh Brewster <josh.brewster@protonmail.com>
  
  Signed-off-by : Josh de Kock <josh@itanimul.li>
  

  • [DH] libavcodec/libx264.c

• Edit H264 video stream header information ("start_pts" and "start_time")

  27 juin 2020, par David

  I have a video clip that appears to be slightly corrupted. Does not play on VLC but works on Potplayer. I used FFprobe to get information on the video.

  


  The problem appears to be with the start points of the video stream :

  


  time_base=1/90000
start_pts=585050940
start_time=6500.566000
duration_ts=585050940
duration=6500.566000
bit_rate=3123218


  


  I'm just wondering whether it is possible to manually edit the "start_pts" and "start_time" to 0 ? Is there any specific software to do this ? Due to large size of video file, I couldn't load it in Notepad++.

  


  Full ffprobe output shown below :

  


  # ffprobe output

[streams.stream.0]
index=0
codec_name=h264
codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
profile=unknown
codec_type=video
codec_time_base=1/60
codec_tag_string=avc1
codec_tag=0x31637661
width=1920
height=1080
coded_width=1920
coded_height=1080
closed_captions=0
has_b_frames=0
sample_aspect_ratio=N/A
display_aspect_ratio=N/A
pix_fmt=unknown
level=-99
color_range=unknown
color_space=unknown
color_transfer=unknown
color_primaries=unknown
chroma_location=unspecified
field_order=unknown
timecode=N/A
refs=1
is_avc=true
nal_length_size=4
id=N/A
r_frame_rate=30/1
avg_frame_rate=30/1
time_base=1/90000
start_pts=585050940
start_time=6500.566000
duration_ts=585050940
duration=6500.566000
bit_rate=3123218
max_bit_rate=N/A
bits_per_raw_sample=N/A
nb_frames=195017
nb_read_frames=N/A
nb_read_packets=N/A

[streams.stream.0.disposition]
default=1
dub=0
original=0
comment=0
lyrics=0
karaoke=0
forced=0
hearing_impaired=0
visual_impaired=0
clean_effects=0
attached_pic=0
timed_thumbnails=0

[streams.stream.0.tags]
language=und
handler_name=VideoHandler

[streams.stream.1]
index=1
codec_name=aac
codec_long_name=AAC (Advanced Audio Coding)
profile=LC
codec_type=audio
codec_time_base=1/48000
codec_tag_string=mp4a
codec_tag=0x6134706d
sample_fmt=fltp
sample_rate=48000
channels=2
channel_layout=stereo
bits_per_sample=0
id=N/A
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/48000
start_pts=0
start_time=0.000000
duration_ts=312029184
duration=6500.608000
bit_rate=189376
max_bit_rate=189376
bits_per_raw_sample=N/A
nb_frames=304718
nb_read_frames=N/A
nb_read_packets=N/A

[streams.stream.1.disposition]
default=1
dub=0
original=0
comment=0
lyrics=0
karaoke=0
forced=0
hearing_impaired=0
visual_impaired=0
clean_effects=0
attached_pic=0
timed_thumbnails=0

[streams.stream.1.tags]
language=eng
handler_name=SoundHandler

[format]
filename=D\:\\Start\\test.mp4
nb_streams=2
nb_programs=0
format_name=mov,mp4,m4a,3gp,3g2,mj2
format_long_name=QuickTime / MOV
start_time=0.000000
duration=6500.608000
size=2703218140
bit_rate=3326726
probe_score=100

[format.tags]
major_brand=isom
minor_version=512
compatible_brands=isomiso2avc1mp41