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Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...) -
Selection of projects using MediaSPIP
2 mai 2011, parThe examples below are representative elements of MediaSPIP specific uses for specific projects.
MediaSPIP farm @ Infini
The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...) -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users.
Sur d’autres sites (6946)
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Concatenating two videos with different width and height
7 mai 2018, par TahtakafaIf i try to concatenate two videos it throws an error due to different screen sizes of the videos. I have put a setdat=16/9 parameter like described here for each two video. Then i got the error below. How can i concatenate two videos with different screen sizes ?
code :
ffmpeg -i /var/www/html/GetVideo/reklam/muzikli1.mp4 -i /var/www/html/GetVideo/tempvideo/sample.mp4 -filter_complex \ "[0]setdar=16/9[a];[1]setdar=16/9[b]; \ [a][b]concat=n=2:v=1:a=1" /var/www/html/GetVideo/reklam/out.mp4error :
pi@raspberrypi:/var/www/html/GetVideo $ ffmpeg -i /var/www/html/GetVideo/reklam/muzikli1.mp4 -i /var/www/html/GetVideo/tempvideo/sample.mp4 -filter_complex \ "[0]setdar=16/9[a];[1]setdar=16/9[b]; \ [a][b]concat=n=2:v=1:a=1" /var/www/html/GetVideo/reklam/out.mp4
ffmpeg version git-2018-05-06-652b857 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1+deb9u1) 20170516
configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree
libavutil 56. 18.100 / 56. 18.100
libavcodec 58. 19.101 / 58. 19.101
libavformat 58. 13.101 / 58. 13.101
libavdevice 58. 4.100 / 58. 4.100
libavfilter 7. 21.100 / 7. 21.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/GetVideo/reklam/muzikli1.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp41isom
Duration: 00:00:13.35, start: 0.000000, bitrate: 244 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 918x512 [SAR 1:1 DAR 459:256], 110 kb/s, 5 fps, 5 tbr, 5k tbn, 10k tbc (default)
Metadata:
handler_name : VideoHandler
encoder : AVC Coding
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 129 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/GetVideo/tempvideo/sample.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.65.100
Duration: 00:00:25.57, start: 0.000000, bitrate: 1015 kb/s
Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 896 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 113 kb/s (default)
Metadata:
handler_name : SoundHandler
[AVFilterGraph @ 0x2fa9a20] No such filter: ' '
Error initializing complex filters.
Invalid argument -
python ffmpeg moov atom not found Invalid data when processing input
11 mai 2018, par IsocratesI have a progress that records the screen, and audio from a microphone, and then combines the video and audio recording (.mp4 and .wav) into one mkv file.
I am using python 3.6 and ffmpeg to achieve this aim. For short videos (<20 sec.) it works, but for longer recordings it presents the following error message :
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55abb3a52540] moov atom not found
tmp/tmp_0.mp4: Invalid data found when processing inputFull output :
ffmpeg version 3.3.7 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7 (GCC)
configuration: --prefix=/usr --bindir=/usr/bin --
datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --
incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --
arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,
-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-
buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-
hardened-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables' --extra-
ldflags='-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld ' --
extra-cflags='-I/usr/include/nvenc ' --enable-libopencore-amrnb --
enable-
libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib
--disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt --
enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-
libcdio --enable-indev=jack --enable-libfreetype --enable-libfribidi --
enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable-
opencl --enable-opengl --enable-libopenjpeg --enable-libopus --enable-
libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --
enable-libtheora --enable-libvorbis --enable-libv4l2 --enable- libvidstab -
-enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --
enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --
disable-static --enable-shared --enable-gpl --disable-debug --disable-
stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
[wav @ 0x55abb3a0b880] Ignoring maximum wav data size, file may be invalid
[wav @ 0x55abb3a0b880] Estimating duration from bitrate, this may be
inaccurate
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'tmp/tmp_0.wav':
Metadata:
encoder : Lavf57.71.100
Duration: 00:00:21.97, bitrate: 768 kb/s
Stream #0:0: Audio: pcm_mulaw ([7][0][0][0] / 0x0007), 48000 Hz,
stereo, s16, 768 kb/s
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55abb3a52540] moov atom not found
tmp/tmp_0.mp4: Invalid data found when processing inputThe python file (ffmpeg.py) is as follows. The class, AV_COMPILE, is not yet complete, held up by the aforementioned error, and therefore still uses the initial test files as defaults. But otherwise it ought to work :
import os, time, glob
TMP_DIR = "tmp"
DISPLAY = os.environ['DISPLAY']
EXT = {
'Video':'mp4',
'Audio':'wav',
'AV':'mkv',
}
class ffmpegVideo:
FFMPEG_BIN = "ffmpeg"
AUDIO = False
def __init__(self, fps = 30, audio = True):
global TMP_DIR, DISPLAY, EXT
self.fps = fps
if audio:
self.AUDIO = True
self.video_filename = self.unique_filename()
self.command = [ self.FFMPEG_BIN,
'-video_size', '1920x1080',
'-framerate', str(fps),
'-f', 'x11grab',
'-i', DISPLAY,
'-vcodec', 'libx264',
'-qp', '0',
'-preset', 'ultrafast',
'-y', TMP_DIR + '/' + self.video_filename
]
def start(self):
import threading as th
thread = th.Thread(target=self.record)
thread.start()
def record(self):
import subprocess as sp
self.pipe = sp.Popen(self.command, stderr=sp.PIPE)
if self.AUDIO:
ffmpegAudio().start()
def stop(self):
self.pipe.terminate()
def unique_filename(self):
global TMP_DIR, EXT
i = 0
while os.path.exists((TMP_DIR + '/' + 'tmp_%s.%s') % (i, EXT['Video'])):
i += 1
return ('tmp_%s.%s') % (i, EXT['Video'])
class ffmpegAudio:
FFMPEG_BIN = "ffmpeg"
def __init__(self):
self.audio_filename = self.unique_filename()
self.command = [ self.FFMPEG_BIN,
'-f', 'pulse',
'-ac', '2',
'-ar', '48000',
'-i', 'default',
'-acodec', 'pcm_mulaw',
'-y', TMP_DIR + '/' + self.audio_filename
]
def start(self):
import threading as th
au_thread = th.Thread(target=self.record)
au_thread.start()
def record(self):
import subprocess as sp
self.pipe = sp.Popen(self.command, stderr=sp.PIPE)
def stop(self):
self.pipe.terminate()
def unique_filename(self):
global TMP_DIR, EXT
i = 0
while os.path.exists((TMP_DIR + '/' + 'tmp_%s.%s') % (i, EXT['Audio'])):
i += 1
return ('tmp_%s.%s') % (i, EXT['Audio'])
class AV_COMPILE:
def __init__(self, au_in = TMP_DIR + '/' + 'out1.wav', vd_in =
TMP_DIR + '/' + 'test4.mp4', out = TMP_DIR + '/' + 'av.mkv'):
import subprocess as sp
au_in = min(glob.iglob(TMP_DIR + '/*.wav'), key=os.path.getctime)
vd_in = min(glob.iglob(TMP_DIR + '/*.mp4'), key=os.path.getctime)
self.command = ('ffmpeg -i %s -r 30 -i %s -shortest -c:a aac -c:v copy %s') % (au_in, vd_in, out)
sp.call(self.command, shell=True)I would be grateful for any assistance you could provide in understanding why this happens and how to solve the error. Also, I am happy to receive any other tips on how to improve this code, or any other problems anyone might notice.
EDIT :
I now believe that the reason for this error in longer videos, and occasionally shorter, is that the program is proceeding to attempt to compile the av output whether or not it has finished compiling the original video file. I tested atime.sleep(10)function to delay AV_COMPILE, and this seems to work.However, as video files get larger, obviously the delay needs to be adjusted. So I should like to know how I can separately check the integrity of the video file and determine that it is safe to proceed to the next step.
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FFmpeg videos not working on QuickPlayer (and therefore on OpenCV)
7 mai 2018, par GabrielleI know that there are several posts about FFMpeg not working on QuickPlayer (and OpenCV) and other players supporting only YUV planar color space, but NONE of the solutions I’ve found worked for me.
I need it to run on OpenCV, but as far as I found, it will never run on OpenCV if it is not running on QuickPlayer, so, I think I might start fixing the QuickPlayer issue. The generated video is a screen record, and it works perfectly on VLC.
Configurations used :
MacOs High Sierra
ffmpeg version 4.0 (installed with: --with-opus --with-libvpx )
opencv version 3.4.1_4
Homebrew 1.6.2 (used to install ffmpeg and opencv)Command used to record the video :
ffmpeg -f avfoundation -video_size 1980x1140 -framerate 30 -i '1'
-vcodec libx264 -preset ultrafast -an -qp 0 -pix_fmt yuv444p video.mkv -yNote1 : I already tried to change
-pix_fmttoyuv420pNote2 : I already tried to add
-vf scale=640:-2,format=yuv420pNote3 : I already tried to re-install OpenCV
--with-ffmpegNote4 : I tried
mkv,mp4,avi. I really don’t care about the extension, I just need it to work.Note5 : I need it to be a cross-plataform solution, as far as I read ffmpeg should work in all OS, but first I am trying to fix on mac and then I will check others...
Any ideas ? Maybe a missing flag ? A missing library ?
@Gyan suggested me to change the qp flag to a number higher than 0, I did it
ffmpeg -f avfoundation -video_size 1980x1140 -framerate 30 -i '1' -vcodec libx264 -preset ultrafast -an -qp 2 -pix_fmt yuv444p video_test.mp4 -yThis is my output :
ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.3.0/include/openjpeg-2.3 --enable-nonfree
libavutil 56. 14.100 / 56. 14.100
libavcodec 58. 18.100 / 58. 18.100
libavformat 58. 12.100 / 58. 12.100
libavdevice 58. 3.100 / 58. 3.100
libavfilter 7. 16.100 / 7. 16.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 1.100 / 5. 1.100
libswresample 3. 1.100 / 3. 1.100
libpostproc 55. 1.100 / 55. 1.100
[avfoundation @ 0x7fbb8f80ee00] Selected pixel format (yuv420p) is not supported by the input device.
[avfoundation @ 0x7fbb8f80ee00] Supported pixel formats:
[avfoundation @ 0x7fbb8f80ee00] uyvy422
[avfoundation @ 0x7fbb8f80ee00] yuyv422
[avfoundation @ 0x7fbb8f80ee00] nv12
[avfoundation @ 0x7fbb8f80ee00] 0rgb
[avfoundation @ 0x7fbb8f80ee00] bgr0
[avfoundation @ 0x7fbb8f80ee00] Overriding selected pixel format to use uyvy422 instead.
[avfoundation @ 0x7fbb8f80ee00] Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #0, avfoundation, from '1':
Duration: N/A, start: 118955.291667, bitrate: N/A
Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 1440x900, 1000k tbr, 1000k tbn, 1000k tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[mp4 @ 0x7fbb8f87d200] Frame rate very high for a muxer not efficiently supporting it.
Please consider specifying a lower framerate, a different muxer or -vsync 2
[libx264 @ 0x7fbb8f87f600] MB rate (5130000000) > level limit (16711680)
[libx264 @ 0x7fbb8f87f600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x7fbb8f87f600] profile High 4:4:4 Predictive, level 6.2, 4:4:4 8-bit
[libx264 @ 0x7fbb8f87f600] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=6 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=cqp mbtree=0 qp=2 ip_ratio=1.40 aq=0
Output #0, mp4, to 'video_test.mp4':
Metadata:
encoder : Lavf58.12.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 1440x900, q=-1--1, 1000k fps, 1000k tbn, 1000k tbc
Metadata:
encoder : Lavc58.18.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
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