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  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

  • 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 (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (10538)

  • Applying same filter_complex many times before output [duplicate]

    19 août 2019, par Fabián

    This question already has an answer here :

    It’s not a duplicate. This is about using filter_complex, not -vf.

    In my video there’s an object that has shades of yellow (more orange-like) and a solid yellow as background.

    I need to output all frames into a png sequence, using a color key filter to replace the yellow from the background :

    ffmpeg -ss 4 -i original.mp4 -t 2 -filter_complex "[0:v]colorkey=0xfff31b:0.125:0[ckout]" -map "[ckout]" colorkey-%d.png

    This removes the specific color, but leaves some pints behind, and some items are yellow-themed, so blending value is a no-no for this scenario.

    I need to get rid of 4 specific yellow-colors from the frames : 0xfff31b, 0xfae56b, 0xfaec46 and 0xeee2a0, and I plan to run the same filter for specific colors before getting the final result.

    So first I tried this :

    ffmpeg -ss 4 -i original.mp4 -t 2 -filter_complex "[0:v]colorkey=0xfff31b:0.4:0[ckout1];[0:v]colorkey=0xfae56b:0.4:0[ckout2];[0:v]colorkey=0xfaec46:0.4:0[ckout3];[0:v]colorkey=0xeee2a0:0.4:0[ckout4]" -map "[ckout4]" colorkeyrefined-%d.png

    Then this :

    ffmpeg -ss 4 -i original.mp4 -t 2 -filter_complex "[0:v]colorkey=0xfff31b:0.4:0[ckout]" -filter_complex "[0:v]colorkey=0xfae56b:0.4:0[ckout]" -filter_complex "[0:v]colorkey=0xfaec46:0.4:0[ckout]" -filter_complex "[0:v]colorkey=0xeee2a0:0.4:0[ckout]" -map "[ckout]" colorkeyrefined-%d.png

    But both display the same error :

    Filter colorkey has an unconnected output.

    Is there a way to apply the colorkey feature 4 times (with the mentioned values) in one go ?

  • DivX audio not decoded on DVD player

    8 août 2019, par Shaul

    Moved to https://video.stackexchange.com/questions/28225/divx-audio-not-decoded-on-dvd-player

    I am converting MP4 movie into AVI/DivX format. I plan to copy the AVI to a USB memory stick and plug it into my DVD player. My player is a Pioneer 3052 that supports USB input.

    I convert the file using ffmpeg without error messages. The output file is played correctly on my computer, including audio. I use "Movies & TVs" and "DIVX Player" for testing.

    When I try running it on my Pioneer the video and the subtitles are ok but there’s no audio. I know that there’s no issues with the hardware because videos converted with "FreeMake Video converter" do play audio.

    My command line is :

    .\ffmpeg.exe  "-i INFILE -c:v mpeg4 -vtag xvid -qscale:v 3 -c:a libmp3lame  -vf "scale=720:576:force_original_aspect_ratio=decrease,pad=720:576:(ow-iw)/2:(oh-ih)/2","subtitles=f=SRTFILE:charenc=ISO-8859-8:force_style=PrimaryColour=&H0000FFFF,Fontsize=16" OUTFILE

    I also experimented with -b:a 192k, -b:a 96k and -qscale:a 4 all leading to the same results.

    I wander what else to try.
    I add the report produced by ffprobe (for the output file) :

    [STREAM]
    
index=0
    
codec_name=mpeg4
    
codec_long_name=MPEG-4 part 2
    
profile=Simple Profile
    
codec_type=video
    
codec_time_base=1001/24000
    
codec_tag_string=xvid
    
codec_tag=0x64697678
    
width=720
    
height=576
    
coded_width=720
    
coded_height=576
    
has_b_frames=0
    
sample_aspect_ratio=1:1
    
display_aspect_ratio=5:4
    
pix_fmt=yuv420p
    
level=1
    
color_range=unknown
    
color_space=unknown
    
color_transfer=unknown
    
color_primaries=unknown
    
chroma_location=left
    
field_order=unknown
    
timecode=N/A
    
refs=1
    
quarter_sample=false
    
divx_packed=false
    
id=N/A
    
r_frame_rate=24000/1001
    
avg_frame_rate=24000/1001
    
time_base=1001/24000
    
start_pts=0
    
start_time=0.000000
    
duration_ts=163203
    
duration=6806.925125
    
bit_rate=1243432
    
max_bit_rate=N/A
    
bits_per_raw_sample=N/A
    
nb_frames=163203
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
DISPOSITION:default=0
    
DISPOSITION:dub=0
    
DISPOSITION:original=0
    
DISPOSITION:comment=0
    
DISPOSITION:lyrics=0
    
DISPOSITION:karaoke=0
    
DISPOSITION:forced=0
    
DISPOSITION:hearing_impaired=0
    
DISPOSITION:visual_impaired=0
    
DISPOSITION:clean_effects=0
    
DISPOSITION:attached_pic=0
    
DISPOSITION:timed_thumbnails=0
    
[/STREAM]
    
[STREAM]
    
index=1
    
codec_name=mp3
    
codec_long_name=MP3 (MPEG audio layer 3)
    
profile=unknown
    
codec_type=audio
    
codec_time_base=1/48000
    
codec_tag_string=U[0][0][0]
    
codec_tag=0x0055
    
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=3/125
    
start_pts=0
    
start_time=0.000000
    
duration_ts=283622
    
duration=6806.928000
    
bit_rate=192000
    
max_bit_rate=N/A
    
bits_per_raw_sample=N/A
    
nb_frames=283622
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
DISPOSITION:default=0
    
DISPOSITION:dub=0
    
DISPOSITION:original=0
    
DISPOSITION:comment=0
    
DISPOSITION:lyrics=0
    
DISPOSITION:karaoke=0
    
DISPOSITION:forced=0
    
DISPOSITION:hearing_impaired=0
    
DISPOSITION:visual_impaired=0
    
DISPOSITION:clean_effects=0
    
DISPOSITION:attached_pic=0
    
DISPOSITION:timed_thumbnails=0
    
[/STREAM]
    
[FORMAT]
    
filename=H:\Movies\Memento.avi
    
nb_streams=2
    
nb_programs=0
    
format_name=avi
    
format_long_name=AVI (Audio Video Interleaved)
    
start_time=0.000000
    
duration=6806.928000
    
size=1235006020
    
bit_rate=1451469
    
probe_score=100
    
TAG:encoder=Lavf58.20.100
    
[/FORMAT]

    EDIT :
    I add an example of a movie that is OK on this DVD player :

    [STREAM]
    
index=0
    
codec_name=mpeg4
    
codec_long_name=MPEG-4 part 2
    
profile=Advanced Simple Profile
    
codec_type=video
    
codec_time_base=1001/24000
    
codec_tag_string=XVID
    
codec_tag=0x44495658
    
width=576
    
height=432
    
coded_width=576
    
coded_height=432
    
has_b_frames=1
    
sample_aspect_ratio=1:1
    
display_aspect_ratio=4:3
    
pix_fmt=yuv420p
    
level=5
    
color_range=unknown
    
color_space=unknown
    
color_transfer=unknown
    
color_primaries=unknown
    
chroma_location=left
    
field_order=unknown
    
timecode=N/A
    
refs=1
    
quarter_sample=false
    
divx_packed=false
    
id=N/A
    
r_frame_rate=24000/1001
    
avg_frame_rate=24000/1001
    
time_base=1001/24000
    
start_pts=0
    
start_time=0.000000
    
duration_ts=134521
    
duration=5610.646708
    
bit_rate=943851
    
max_bit_rate=N/A
    
bits_per_raw_sample=N/A
    
nb_frames=134521
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
DISPOSITION:default=0
    
DISPOSITION:dub=0
    
DISPOSITION:original=0
    
DISPOSITION:comment=0
    
DISPOSITION:lyrics=0
    
DISPOSITION:karaoke=0
    
DISPOSITION:forced=0
    
DISPOSITION:hearing_impaired=0
    
DISPOSITION:visual_impaired=0
    
DISPOSITION:clean_effects=0
    
DISPOSITION:attached_pic=0
    
DISPOSITION:timed_thumbnails=0
    
[/STREAM]
    
[STREAM]
    
index=1
    
codec_name=mp3
    
codec_long_name=MP3 (MPEG audio layer 3)
    
profile=unknown
    
codec_type=audio
    
codec_time_base=1/48000
    
codec_tag_string=U[0][0][0]
    
codec_tag=0x0055
    
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=3/125
    
start_pts=0
    
start_time=0.000000
    
duration_ts=233777
    
duration=5610.648000
    
bit_rate=91176
    
max_bit_rate=N/A
    
bits_per_raw_sample=N/A
    
nb_frames=233777
    
nb_read_frames=N/A
    
nb_read_packets=N/A
    
DISPOSITION:default=0
    
DISPOSITION:dub=0
    
DISPOSITION:original=0
    
DISPOSITION:comment=0
    
DISPOSITION:lyrics=0
    
DISPOSITION:karaoke=0
    
DISPOSITION:forced=0
    
DISPOSITION:hearing_impaired=0
    
DISPOSITION:visual_impaired=0
    
DISPOSITION:clean_effects=0
    
DISPOSITION:attached_pic=0
    
DISPOSITION:timed_thumbnails=0
    
[/STREAM]
    
[FORMAT]
    
filename=H:\Honey.I.Shrunk.The.Kids.1989.FS.DVDRip.XViD.iNT-EwDp.HebSub.www.Moridim.tv.avi
    
nb_streams=2
    
nb_programs=0
    
format_name=avi
    
format_long_name=AVI (Audio Video Interleaved)
    
start_time=0.000000
    
duration=5610.648000
    
size=734808064
    
bit_rate=1047733
    
probe_score=100
    
TAG:encoder=VirtualDubMod 1.5.10.2 (build 2540/release)
    
[/FORMAT]

  • dnn : add layer pad which is equivalent to tf.pad

    29 juillet 2019, par Guo, Yejun
    dnn : add layer pad which is equivalent to tf.pad

    the reason to add this layer first is that vf_sr uses it in its
    
tensorflow model, and the next plan is to update the python script
    
to convert tf.pad into native model.
    

    Signed-off-by : Guo, Yejun <yejun.guo@intel.com>
    
Signed-off-by : Pedro Arthur <bygrandao@gmail.com>
    • [DH] libavfilter/dnn/Makefile
    • [DH] libavfilter/dnn/dnn_backend_native_layer_pad.c
    • [DH] libavfilter/dnn/dnn_backend_native_layer_pad.h

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