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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
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MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 is the first MediaSPIP stable release.
Its official release date is June 21, 2013 and is announced here.
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 (...)
Sur d’autres sites (5883)
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Revision 29926 : On branche spip_piwik
17 juillet 2009, par kent1@… — LogOn branche spip_piwik
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'C' program to pipeout audio file to FFMPEG and generate Video file
9 mai 2017, par soflowI am attempting to write a short ’C’ program which reads in an Audio file using FFMPEG, processes that file using a ’C’ program, and then outputs a file via FFMEPG, which combines the new, modified audio together with a Video representation using the FFMPEG showwaves filter.
At present the program attempts to do the following :-
i) Read in an audio file, using pipein thorugh FFMPEG
ii) Process the audio file using a portion of the ’C’ program
iii) Pipeout the modified audio to FFMPEG, and generate a file using the ’showwaves’ filter in FFMEPG to create an MP4 file with audio and video.The following code run form the ommand line in FFMPEG generates the Audio/Video MP4 I want to create :-
ffmpeg -y -f s16le -ar 44100 -ac 1 -i 12345678.wav -i 12345678.wav -filter_complex "[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" -map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart 12345678.mp4
"
This code generates a processed audio file, and outputs it to a .wav file as required :-
#include
#include
#include
void main()
{
// Launch two instances of FFmpeg, one to read the original WAV
// file and another to write the modified WAV file. In each case,
// data passes between this program and FFmpeg through a pipe.
FILE *pipein;
FILE *pipeout;
pipein = popen("ffmpeg -i 12345678.wav -f s16le -ac 1 -", "r");
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - out.wav", "w");
// Read, modify and write one sample at a time
int16_t sample;
int count, n=0;
while(1)
{
count = fread(&sample, 2, 1, pipein); // read one 2-byte sample
if (count != 1) break;
++n;
sample = sample * sin(n * 5.0 * 2*M_PI / 44100.0);
fwrite(&sample, 2, 1, pipeout);
}
// Close input and output pipes
pclose(pipein);
pclose(pipeout);
}(This code borrowed from ted Burke’s excellent post here)
I have made an attempt as shown below, but this is not working :-
#include
#include
#include
void main()
{
// Launch two instances of FFmpeg, one to read the original WAV
// file and another to write the modified WAV file. In each case,
// data passes between this program and FFmpeg through a pipe.
FILE *pipein;
FILE *pipeout;
pipein = popen("ffmpeg -i 12345678.wav -f s16le -ac 1 -", "r");
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i 12345678.wav -i
12345678.wav -filter_complex "
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]"
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart
12345678.mp4
", "w");
// Read, modify and write one sample at a time
int16_t sample;
int count, n=0;
while(1)
{
count = fread(&sample, 2, 1, pipein); // read one 2-byte sample
if (count != 1) break;
++n;
sample = sample * sin(n * 5.0 * 2*M_PI / 44100.0);
fwrite(&sample, 2, 1, pipeout);
}
// Close input and output pipes
pclose(pipein);
pclose(pipeout);
}Ideally someone can suggest an improved version of the pipeout command above - alternately another process to achieve this would be interesting
* EDIT *
Thanks to @Mulvya, the revised pipeout line is now :-
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - -filter_complex "[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]" -map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart 12345678.mp4
", "w") ;
On compiling with gcc I get the following error messages :-
avtovid2.c: In function \u2018main\u2019:
wavtovid2.c:13:83: error: expected \u2018]\u2019 before \u2018:\u2019
token
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - -
filter_complex "
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]"
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart
12345678.mp4
^
wavtovid2.c:13:86: error: expected \u2018)\u2019 before
\u2018showwaves\u2019
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - -
filter_complex "
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]"
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart
12345678.mp4
^
wavtovid2.c:13:98: error: invalid suffix "x720" on integer constant
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - -
filter_complex "
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]"
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart
12345678.mp4
^
wavtovid2.c:13:153: warning: missing terminating " character
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - -
filter_complex "
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]"
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart
12345678.mp4
^
wavtovid2.c:13:86: error: missing terminating " character
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - -
filter_complex "
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]"
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart
12345678.mp4
^
wavtovid2.c:14:6: warning: missing terminating " character
", "w");
^
wavtovid2.c:14:1: error: missing terminating " character
", "w");
^
wavtovid2.c:13:21: warning: passing argument 1 of \u2018popen\u2019 makes
pointer from integer without a cast
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - -
filter_complex "
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]"
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart
12345678.mp4
^
In file included from wavtovid2.c:1:0:
/usr/include/stdio.h:872:14: note: expected \u2018const char *\u2019 but
argument is of type \u2018char\u2019
extern FILE *popen (const char *__command, const char *__modes) __wur;
^
wavtovid2.c:13:15: error: too few arguments to function \u2018popen\u2019
pipeout = popen("ffmpeg -y -f s16le -ar 44100 -ac 1 -i - -
filter_complex "
[0:a]showwaves=s=1280x720:mode=line:rate=25,format=yuv420p[v]" -map "[v]"
-map 1:a:0 -codec:v libx264 -crf 21 -bf 2 -flags +cgop -pix_fmt yuv420p -
codec:a aac -strict -2 -b:a 384k -r:a 48000 -movflags faststart
12345678.mp4
^
In file included from wavtovid2.c:1:0:
/usr/include/stdio.h:872:14: note: declared here
extern FILE *popen (const char *__command, const char *__modes) __wur;
^
wavtovid2.c:32:1: error: expected \u2018;\u2019 before \u2018}\u2019
token
} -
Problems when make ffmpeg with ios5.1
20 octobre 2012, par whyI am using https://github.com/lajos/iFrameExtractor and there is ffmpeg directory.
I can configure and make successful, but there some errors when run
./build_universal
libavformat/metadata_compat.c: In function ‘ff_metadata_mux_compat’:
libavformat/metadata_compat.c:129: warning: the address of ‘number’ will always evaluate as ‘true’
libavformat/metadata_compat.c:130: warning: the address of ‘number’ will always evaluate as ‘true’
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize -MMD -MF libavformat/options.d -MT libavformat/options.o -c -o libavformat/options.o libavformat/options.c
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize -MMD -MF libavformat/os_support.d -MT libavformat/os_support.o -c -o libavformat/os_support.o libavformat/os_support.c
libavformat/os_support.c: In function ‘resolve_host’:
libavformat/os_support.c:68: warning: implicit declaration of function ‘inet_aton’
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize -MMD -MF libavformat/sdp.d -MT libavformat/sdp.o -c -o libavformat/sdp.o libavformat/sdp.c
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize -MMD -MF libavformat/seek.d -MT libavformat/seek.o -c -o libavformat/seek.o libavformat/seek.c
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize -MMD -MF libavformat/utils.d -MT libavformat/utils.o -c -o libavformat/utils.o libavformat/utils.c
libavformat/utils.c: In function ‘parse_date’:
libavformat/utils.c:3100: warning: cast discards qualifiers from pointer target type
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize -MMD -MF libavformat/avio.d -MT libavformat/avio.o -c -o libavformat/avio.o libavformat/avio.c
/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -DHAVE_AV_CONFIG_H -I. -I"/Users/why/work/iFrameExtractor/ffmpeg" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -fomit-frame-pointer -fPIC -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize -MMD -MF libavformat/aviobuf.d -MT libavformat/aviobuf.o -c -o libavformat/aviobuf.o libavformat/aviobuf.c
libavformat/aviobuf.c: In function ‘url_fdopen’:
libavformat/aviobuf.c:560: warning: passing argument 6 of ‘init_put_byte’ from incompatible pointer type
libavformat/aviobuf.c:560: warning: passing argument 7 of ‘init_put_byte’ from incompatible pointer type
libavformat/aviobuf.c:560: warning: passing argument 8 of ‘init_put_byte’ from incompatible pointer type
/var/folders/59/7srh1dk537s3hr4b2_4k1nxr0000gn/T//cc7qLhBK.s:2662:no such instruction: `eor %ecx, %eax,%eax,ror'
/var/folders/59/7srh1dk537s3hr4b2_4k1nxr0000gn/T//cc7qLhBK.s:2663:no such instruction: `bic %ecx, %ecx,'
/var/folders/59/7srh1dk537s3hr4b2_4k1nxr0000gn/T//cc7qLhBK.s:2664:suffix or operands invalid for `mov'
/var/folders/59/7srh1dk537s3hr4b2_4k1nxr0000gn/T//cc7qLhBK.s:2665:no such instruction: `eor %eax, %eax,%ecx,lsr'
make: *** [libavformat/aviobuf.o] Error 1
mv: rename libavcodec/libavcodec.a to armv7/libavcodec.a: No such file or directory
mv: rename libavformat/libavformat.a to armv7/libavformat.a: No such file or directory
mv: rename libavutil/libavutil.a to armv7/libavutil.a: No such file or directory
mv: rename libswscale/libswscale.a to armv7/libswscale.a: No such file or directory
rm: No match.
rm: No match.
lipo: can't open input file: armv7/libavcodec.a (No such file or directory)
lipo: specifed architecture type (armv7) for file (armv7/libavdevice.a) does not match its cputype (16777223) and cpusubtype (3) (should be cputype (12) and cpusubtype (9))
lipo: can't open input file: armv7/libavformat.a (No such file or directory)
lipo: can't open input file: armv7/libavutil.a (No such file or directory)
lipo: can't open input file: armv7/libswscale.a (No such file or directory)
cp: No match.