ffmpeg_parse_infos failed get duration with Quicktime XMP metadata

[maty974]

Hi

I was trying to create a VideoFileClip() with a custom Quicktime .mov format, and
it seems that MoviePy don't like some metadata embedded in the file :P

: xmpDM:duration="0:32.303"

                    :       <xmpDM:duration
                    :        xmpDM:value="130667"
                    :        xmpDM:scale="1/1000"/>
                    :       <xmpMM:History>

xmpDM:duration="10584000000"

Maybe its causing a bug here ?

https://github.com/Zulko/moviepy/blob/master/moviepy/video/io/ffmpeg_reader.py#L261-L270

[maty974]

Here is a full output of ffmpeg infos of a file that contain xmp metadata

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/110_PREV_FINAL.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    creation_time   : 2015-09-14 14:57:32
    xmp             : <?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>
                    : <x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.0-c060 61.136967, 2010/06/15-10:43:27        ">
                    :  <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
                    :   <rdf:Description rdf:about=""
                    :     xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"
                    :     xmlns:xmpDM="http://ns.adobe.com/xmp/1.0/DynamicMedia/"
                    :     xmlns:stDim="http://ns.adobe.com/xap/1.0/sType/Dimensions#"
                    :     xmlns:dc="http://purl.org/dc/elements/1.1/"
                    :    xmpMM:DocumentID="xmp.did:39FA818BE85AE511B9009F953BF804AA"
                    :    xmpMM:InstanceID="xmp.iid:39FA818BE85AE511B9009F953BF804AA"
                    :    xmpDM:videoFrameRate="24.000000"
                    :    xmpDM:videoFieldOrder="Progressive"
                    :    xmpDM:videoPixelAspectRatio="1/1"
                    :    xmpDM:audioSampleRate="44100"
                    :    xmpDM:audioSampleType="16Int"
                    :    xmpDM:audioChannelType="Mono"
                    :    dc:format="QuickTime">
                    :    <xmpDM:startTimecode
                    :     xmpDM:timeValue="00:00:00:00"
                    :     xmpDM:timeFormat="24Timecode"/>
                    :    <xmpDM:altTimecode
                    :     xmpDM:timeValue="00:00:00:00"
                    :     xmpDM:timeFormat="24Timecode"/>
                    :    <xmpDM:videoFrameSize
                    :     stDim:w="768"
                    :     stDim:h="576"
                    :     stDim:unit="pixel"/>
                    :   </rdf:Description>
                    :  </rdf:RDF>
                    : </x:xmpmeta>
                    :                                                                                                     
                    :                                                                                                     
                    :                                                                                                     
                    :                                                                                                     
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                    :                                                                                                     
                    :                                                                                                     
                    :                            
                    : <?xpacket end="w"?>
  Duration: 00:02:10.67, start: 0.000000, bitrate: 26287 kb/s
    Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p(pc, bt470bg), 768x576 [SAR 72:72 DAR 4:3], 26213 kb/s, 24 fps, 24 tbr, 24 tbn, 24 tbc (default)
    Metadata:
      creation_time   : 2015-09-14 14:57:32
      handler_name    : Gestionnaire d�alias Apple
      encoder         : Photo - JPEG
      timecode        : 00:00:00:00
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 64 kb/s (default)
    Metadata:
      creation_time   : 2015-09-14 14:57:32
      handler_name    : Gestionnaire d�alias Apple
      timecode        : 00:00:00:00
    Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
    Metadata:
      creation_time   : 2015-09-14 14:58:24
      handler_name    : Gestionnaire d�alias Apple
      timecode        : 00:00:00:00
At least one output file must be specified

In this example another error occur in MoviePy:

Traceback (most recent call last):
  File "/home/test.py", line 27, in <module>
    "/home/110_PREV_FINAL.mov", verbose=True)
  File "/home/moviepy/0.2.2.11/common/moviepy/video/io/VideoFileClip.py", line 55, in __init__
    reader = FFMPEG_VideoReader(filename, pix_fmt=pix_fmt)
  File "//home/moviepy/0.2.2.11/common/moviepy/video/io/ffmpeg_reader.py", line 32, in __init__
    infos = ffmpeg_parse_infos(filename, print_infos, check_duration)
  File "//home/moviepy/0.2.2.11/common/moviepy/video/io/ffmpeg_reader.py", line 241, in ffmpeg_parse_infos
    infos = proc.stderr.read().decode('utf8')
  File "/home/applications/anaconda/2.3.0/linux64/lib/python2.7/encodings/utf_8.py", line 16, in decode
    return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0x92 in position 5985: invalid start byte
Exception AttributeError: "VideoFileClip instance has no attribute 'reader'" in <bound method VideoFileClip.__del__ of <moviepy.video.io.VideoFileClip.VideoFileClip instance at 0x7f6bdd841fc8>> ignored

[daniestrella1]

The error can be reproduced editing a video with iMovie. This will add a strange chars on video metadata like this (see com.apple.quicktime.artwork field):

ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
  libavutil      55. 34.101 / 55. 34.101
  libavcodec     57. 64.101 / 57. 64.101
  libavformat    57. 56.101 / 57. 56.101
  libavdevice    57.  1.100 / 57.  1.100
  libavfilter     6. 65.100 /  6. 65.100
  libavresample   3.  1.  0 /  3.  1.  0
  libswscale      4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc    54.  1.100 / 54.  1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/Shared/Development/django-files/cheerapp/files/video_clips/3b624062-c4bd-4292-9cfc-eef7683c1482.MOV':
  Metadata:
    major_brand     : qt  
    minor_version   : 0
    compatible_brands: qt  
    creation_time   : 2019-06-02T18:31:21.000000Z
    com.apple.quicktime.artwork: ����
    com.apple.quicktime.is-montage: iMovie
  Duration: 00:01:12.50, start: 0.000000, bitrate: 4753 kb/s
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 239 kb/s (default)
    Metadata:
      creation_time   : 2019-06-02T18:31:21.000000Z
      handler_name    : Core Media Data Handler
    Stream #0:1(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720, 4500 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (default)
    Metadata:
      creation_time   : 2019-06-02T18:31:21.000000Z
      handler_name    : Core Media Data Handler
      encoder         : H.264
At least one output file must be specified

[mondeja]

This was fixed in #959.