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  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

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  • ffmpeg determine correct codec to use

    6 janvier 2015, par nha

    I am trying to use .y4m files that I feed into Chrome for playing.
    This is the only format that I can use.

    I have a set of .y4m files that are working for my use case, taken from here.
    For example let’s say that I use the file mobile_qcif_7.5fps.y4m.

    I also have a .mp4 file (specifically the sample small.mp4 file from techslides ). I know how to convert small.mp4 to small.y4m with the following command :

    ffmpeg -y -i small.mp4 small.y4m

    I would like the resulting file to be accepted by Chrome, just like the other file.
    What options should I use (and how to find them) ?

    Additional information

    ffprobe gives :

    $ ffprobe small.y4m 
    
avprobe version 0.8.13-6:0.8.13-0ubuntu0.13.10.1, Copyright (c) 2007-2014 the Libav developers
    
  built on Jul 15 2014 13:48:35 with gcc 4.8.1
    
[yuv4mpegpipe @ 0x23160c0] Estimating duration from bitrate, this may be inaccurate
    
Input #0, yuv4mpegpipe, from 'small.y4m':
    
  Duration: N/A, bitrate: N/A
    
    Stream #0.0: Video: rawvideo, yuv420p, 560x320, 30 fps, 30 tbr, 30 tbn, 30 tbc
    

    

    
$ ffprobe mobile_qcif_7.5fps.y4m
    
avprobe version 0.8.13-6:0.8.13-0ubuntu0.13.10.1, Copyright (c) 2007-2014 the Libav developers
    
  built on Jul 15 2014 13:48:35 with gcc 4.8.1
    
[yuv4mpegpipe @ 0x1e080c0] max_analyze_duration reached
    
[yuv4mpegpipe @ 0x1e080c0] Estimating duration from bitrate, this may be inaccurate
    
Input #0, yuv4mpegpipe, from 'mobile_qcif_7.5fps.y4m':
    
  Duration: N/A, bitrate: N/A
    
    Stream #0.0: Video: rawvideo, yuv420p, 176x144, PAR 128:117 DAR 1408:1053, 7.50 fps, 7.50 tbr, 7.50 tbn, 7.50 tbc

    OS : I am using ffmpeg in Ubuntu 13.10 from the default repository : I ran sudo apt-get install ffmpeg libavcodec-extra-53

    Complete console output

    $ ffmpeg -y -i small.mp4 small.y4m
    
ffmpeg version 0.8.13-6:0.8.13-0ubuntu0.13.10.1, Copyright (c) 2000-2014 the Libav developers
    
  built on Jul 15 2014 13:48:35 with gcc 4.8.1
    
*** THIS PROGRAM IS DEPRECATED ***
    
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'small.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isomavc1
    
    creation_time   : 2010-03-20 21:29:11
    
    encoder         : HandBrake 0.9.4 2009112300
    
  Duration: 00:00:05.56, start: 0.000000, bitrate: 551 kb/s
    
    Stream #0.0(und): Video: h264 (Constrained Baseline), yuv420p, 560x320, 465 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc
    
    Metadata:
    
      creation_time   : 2010-03-20 21:29:11
    
    Stream #0.1(eng): Audio: aac, 48000 Hz, mono, s16, 83 kb/s
    
    Metadata:
    
      creation_time   : 2010-03-20 21:29:11
    
[buffer @ 0x7274e0] w:560 h:320 pixfmt:yuv420p
    
Output #0, yuv4mpegpipe, to 'small.y4m':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isomavc1
    
    creation_time   : 2010-03-20 21:29:11
    
    encoder         : Lavf53.21.1
    
    Stream #0.0(und): Video: rawvideo, yuv420p, 560x320, q=2-31, 200 kb/s, 90k tbn, 30 tbc
    
    Metadata:
    
      creation_time   : 2010-03-20 21:29:11
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
Press ctrl-c to stop encoding
    
frame=  166 fps=  0 q=0.0 Lsize=   43576kB time=5.53 bitrate=64513.5kbits/s    
    
video:0kB audio:0kB global headers:0kB muxing overhead inf%

    Head of the files

    Not sure if this is relevant, but the text content of both files begin like that :

    mobile_qcif_7.5fps.y4m
    
YUV4MPEG2 W176 H144 F15:2 Ip A128:117
    
FRAME
    

    
small.y4m (invalid)
    
YUV4MPEG2 W560 H320 F15:2 Ip A0:0 C420mpeg2 XYSCSS=420MPEG2
    
FRAME

    Additional experiment

    Taking the sample mobile_qcif_7.5fps.y4m, turning it into a .mp4 file and then back into a .y4m produces an invalid file (at least for Chrome).

    Answer to comments in the answer of @SirDarius

    Following the suggestion of @SirDarius ; I tried the following commands.
    They failed to produce a valid file.

    # [COMMAND]   # [RESULT] [HEADER]
    
ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -pix_fmt yuv444p -y small_yuv444p.y4m   # KO YUV4MPEG2 W560 H320 F15:2 Ip A0:0 C444 XYSCSS=444
    
ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -pix_fmt yuv422p -y small_yuv422p.y4m   # KO YUV4MPEG2 W560 H320 F15:2 Ip A0:0 C422 XYSCSS=422
    
ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -pix_fmt yuv420p -y small_yuv420p.y4m   # KO YUV4MPEG2 W560 H320 F15:2 Ip A0:0 C420mpeg2 XYSCSS=420MPEG2
    
ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -pix_fmt yuv411p -y small_yuv411p.y4m   # KO   YUV4MPEG2 W560 H320 F15:2 Ip A0:0 C411 XYSCSS=411
    

    
ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -strict -1 -pix_fmt yuv420p9 -y small_yuv420p9.y4m   # KO YUV4MPEG2 W560 H320 F15:2 Ip A0:0 C420p9 XYSCSS=420P9
    
ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -strict -1 -pix_fmt yuv420p12 -y small_yuv420p12.y4m # KO YUV4MPEG2 W560 H320 F15:2 Ip A0:0 C420p12 XYSCSS=420P12
    
ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -strict -1 -pix_fmt yuv420p14 -y small_yuv420p14.y4m # KO YUV4MPEG2 W560 H320 F15:2 Ip A0:0 C420p14 XYSCSS=420P14
    
ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -strict -1 -pix_fmt yuv420p16 -y small_yuv420p16.y4m # KO YUV4MPEG2 W560 H320 F15:2 Ip A0:0 C420p16 XYSCSS=420P16

    When trying other formats (like yuv420p12be, which was in the output of -pix_fmts), I had the following output (hence my previous trials) :

    $  ffmpeg -i small.mp4 -vf fps=7.5 -an -c:v rawvideo -f yuv4mpegpipe -pix_fmt yuv420p12be -y small_yuv420p12be.y4m 
    
ffmpeg version N-68884-g3ebd76a Copyright (c) 2000-2015 the FFmpeg developers
    
  built on Jan  6 2015 11:03:21 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
    
  configuration: 
    
  libavutil      54. 16.100 / 54. 16.100
    
  libavcodec     56. 19.100 / 56. 19.100
    
  libavformat    56. 18.100 / 56. 18.100
    
  libavdevice    56.  3.100 / 56.  3.100
    
  libavfilter     5.  6.100 /  5.  6.100
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  1.100 /  1.  1.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x21d0220] overread end of atom 'colr' by 1 bytes
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'small.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isomavc1
    
    creation_time   : 2010-03-20 21:29:11
    
    encoder         : HandBrake 0.9.4 2009112300
    
  Duration: 00:00:05.57, start: 0.000000, bitrate: 551 kb/s
    
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 560x320, 465 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc (default)
    
    Metadata:
    
      creation_time   : 2010-03-20 21:29:11
    
      encoder         : JVT/AVC Coding
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 83 kb/s (default)
    
    Metadata:
    
      creation_time   : 2010-03-20 21:29:11
    
[yuv4mpegpipe @ 0x21d8180] ERROR: yuv4mpeg can only handle yuv444p, yuv422p, yuv420p, yuv411p and gray8 pixel formats. And using 'strict -1' also yuv444p9, yuv422p9, yuv420p9, yuv444p10, yuv422p10, yuv420p10, yuv444p12, yuv422p12, yuv420p12, yuv444p14, yuv422p14, yuv420p14, yuv444p16, yuv422p16, yuv420p16 and gray16 pixel formats. Use -pix_fmt to select one.
    
Output #0, yuv4mpegpipe, to 'small_yuv420p12be.y4m':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: mp42isomavc1
    
    encoder         : Lavf56.18.100
    
    Stream #0:0(und): Video: rawvideo ([12][11]3Y / 0x59330B0C), yuv420p12be, 560x320, q=2-31, 200 kb/s, 7.50 fps, 7.50 tbn, 7.50 tbc (default)
    
    Metadata:
    
      creation_time   : 2010-03-20 21:29:11
    
      encoder         : Lavc56.19.100 rawvideo
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
    
Could not write header for output file #0 (incorrect codec parameters ?): Input/output error

    After that, I also tried to edit with an hexadecimal editor (bless) the small_yuv420p.y4m file. I replace C420mpeg2 by C420, and the file was accepted by Chrome.
    What does the number in 420p[number] correspond to ? It is not explained there.
    Is there any way to make ffmpeg output this kind of header files ?

    @SirDarius, thank you again for your help.

    The question

    (in case you forgot after this text blob)

    How can I convert the small.mp4 into a small.y4m file that has the same properties as the mobile_qcif_7.5fps.y4m file ?

  • Anomalie #3389 : SVP (?) télécharge les zip 2 fois

    17 février 2015, par cedric -

    Non, non je vois bien des GET en double sur plein de zip (même si je vois parfois aussi une combinaison HEAD+GET).
    Peut-être c’est un effet indesirable d’une couche http sortante qui modifie HEAD en GET. Mais si on fait systematiquement HEAD+GET il vaudrait mieux remplacer par un seul GET.
    Je peux ressortir les cas ou un a que un HEAD mais ça semble pas très fréquent.

  • wMy media converter app crashes when handling file names with spaces

    8 janvier 2013, par suffa

    I wrote an app that uses ffmpeg to convert media files (.wav, .avi, .mp3, ... etc.). It works only with file names that have no spaces. When a file name with spaces is encountered, the app immediately closes. Can someone tell me if the string I'm using to call ffmpeg is correct, or need some characters escaped ? Below is a fragment of the code :

    ...
    
...
    
...
    

    
#Select Media
    
os.chdir("c:\\d-Converter\\ffmpeg\\bin")
    
wrkdir = os.getcwd()
    
filelist = os.listdir(wrkdir)
    
self.formats1 = []
    

    
for filename in filelist:
    
    (head, filename) = os.path.split(filename)
    
    if filename.endswith(".avi") or filename.endswith(".mp4") or filename.endswith(".flv") or filename.endswith(".mov") or filename.endswith(".mpeg4") or filename.endswith(".mpeg") or filename.endswith(".mpg2") or filename.endswith(".wav") or filename.endswith(".mp3"):
    
            self.formats1.append(filename)
    
    self.format_combo1=wx.ComboBox(panel, size=(140, -1),value='Select Media', choices=self.formats1, style=wx.CB_DROPDOWN, pos=(300,50))
    

    
    self.Bind(wx.EVT_COMBOBOX, self.fileFormats, self.format_combo1)
    

    

    
...
    
...
    
...
    

    

    
def fileFormats(self, e):
    
    myFormats = {'audio': ('Select Format','.mp3', '.ogg', '.wav', '.wma'), 'video': ('Select Format','.flv','.mpg', '.mp4', '.mpeg')}
    
    bad_file = ['Media not supported']
    
    myFile = self.format_combo1.GetValue()
    
    f_exten = (x for x in myFormats['audio'] + myFormats['video'] if myFile.endswith(x))
    
    extension = f_exten.next()
    

    
    if extension in myFormats['audio']:
    
        self.format_combo2.SetItems(myFormats['audio'])
    

    
    elif extension in myFormats['video']:
    
        self.format_combo2.SetItems(myFormats['video'])
    
    else:
    
        self.format_combo2.SetItems(bad_file)
    
...
    
...
    
...
    

    

    
def convertButton(self, e):
    

    
    unit1 = self.format_combo1.GetValue()
    
    if unit1:
    
        unit1 = self.repl_Wspace(unit1)
    

    
    #Media Formats
    
    unit2 = self.format_combo2.GetValue()
    
    unit3 = self.format_combo3.GetValue()
    
    unit4 = None
    
    unit5 = self.format_combo5.GetValue()
    
    bitRate = self.format_combo6.GetValue()
    
    unit6 = bitRate
    
    if unit3 == '-qmax':
    
        unit4 = self.format_combo4.GetValue()
    
    else:
    
        pass
    

    
    os.chdir("c:\\d-Converter\\ffmpeg\\bin")
    
    wrkdir = os.getcwd()
    

    
    newfile = unit1
    
    stripped = newfile.strip('mpeg3aviovfl4w2c.') #Strips the extension from the original file name
    

    

    
    progname='c:\\d-Converter\\ffmpeg\\bin\\ffmpeg.exe' + ' -i '
    

    
    preset1_a='-vn -ar 44100 -ac 2 -ab'
    
    preset1_b='-f mp3 '
    
    preset_mp3='.mp3'
    

    
    chck_unit1 = self.my_endswith(unit1)
    

    

    

    
    while True:    
    
        if unit5 == 'video to mp3':
    

    
            if unit6 == 'k/bs' or unit6 == '':
    
                amsg = wx.MessageDialog(None, 'You must select a bit rate.', 'Media Converter', wx.ICON_INFORMATION)
    
                amsg.ShowModal()
    
                amsg.Destroy()
    
                break
    

    
            elif unit5 == 'video to mp3' and unit6 != 'k/bs' or unit6 != '':
    
                self.button.Disable()
    
                self.button2.Enable()
    
                self.format_combo1.Disable()
    
                self.format_combo2.Disable()
    
                self.format_combo3.Disable()
    
                self.format_combo4.Disable()
    
                self.format_combo5.Disable()
    
                self.format_combo6.Disable()
    
                startWorker(self.LongTaskDone, self.LongTask3, wargs=(progname, wrkdir, unit1, preset1_a, unit6, preset1_b, stripped, preset_mp3))
    
                break
    
            elif unit1 != unit1.endswith(".mpg") or unit1.endswith(".mpeg") or unit1.endswith(".avi") or unit1.endswith(".mp4") or unit1.endswith(".flv"):
    
                bmsg = wx.MessageDialog(None, 'You must select a valid format to convert to .mp3.', 'Media Converter', wx.ICON_INFORMATION)
    
                bmsg.ShowModal()
    
                bmsg.Destroy()
    
                break
    

    
        else:
    
            pass
    

    

    

    
        if unit1 == 'Select Media' or unit1 == '':
    
            amsg = wx.MessageDialog(None, 'You must select a media file!', 'Media Converter', wx.ICON_INFORMATION)
    
            amsg.ShowModal()
    
            amsg.Destroy()
    
            break
    

    

    
        elif unit2 == 'Select Format' or unit2 == '' or unit2 == chck_unit1:
    
            amsg = wx.MessageDialog(None, 'You must select a valid format', 'Media Converter', wx.ICON_INFORMATION)
    
            amsg.ShowModal()
    
            amsg.Destroy()
    
            break
    

    

    
        elif unit3 == 'Select Quality' or unit3 == '':
    
            amsg = wx.MessageDialog(None, 'You must select quality', 'Media Converter', wx.ICON_INFORMATION)
    
            amsg.ShowModal()
    
            amsg.Destroy()
    
            break
    

    
        elif unit3 != 'Select Quality' or unit3 != '':
    
            self.format_combo5.Disable()
    

    
            if unit3 == '-qmax':
    
                if unit4 == '0' or unit4 == '':
    
                    amsg = wx.MessageDialog(None, 'You must select number between 1-8.', 'Media Converter', wx.ICON_INFORMATION)
    
                    amsg.ShowModal()
    
                    amsg.Destroy()
    
                    break
    
                else:
    
                    self.button.Disable()
    
                    self.button2.Enable()
    
                    self.format_combo1.Disable()
    
                    self.format_combo2.Disable()
    
                    self.format_combo3.Disable()
    
                    self.format_combo4.Disable()
    
                    self.format_combo5.Disable()
    
                    startWorker(self.LongTaskDone, self.LongTask2, wargs=(progname,wrkdir,unit1,unit3,unit4,stripped,unit2))
    
                    break
    
            elif unit3 == '-sameq':
    
                self.button.Disable()
    
                self.button2.Enable()
    
                self.format_combo1.Disable()
    
                self.format_combo2.Disable()
    
                self.format_combo3.Disable()
    
                self.format_combo4.Disable()
    
                self.format_combo5.Disable()
    
                startWorker(self.LongTaskDone, self.LongTask, wargs=(progname,wrkdir,unit1,unit3,stripped,unit2))
    
                break   
    

    

    

    

    
def LongTask(self, progname, wrkdir, unit1, unit3, stripped, unit2):
    
    convert_file1 = progname + wrkdir + '\\' + unit1 + ' ' + unit3 + ' ' + stripped + unit2
    
    self.statusbar.SetStatusText("Converting: " + unit1 + "...")
    
    os.system(convert_file1)
    
    print convert_file1
    

    

    
def LongTask2(self, progname, wrkdir, unit1, unit3, unit4, stripped, unit2):
    
    convert_file2 = progname + wrkdir + '\\' + unit1 + ' ' + unit3 + ' ' + unit4 + ' ' + stripped + unit2
    
    self.statusbar.SetStatusText("Converting: " + unit1 + "...")
    
    os.system(convert_file2)
    

    
...
    
...
    
...

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