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Autres articles (60)

Personnaliser en ajoutant son logo, sa bannière ou son image de fond

5 septembre 2013, par kent1

Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
Les tâches Cron régulières de la ferme

1er décembre 2010, par kent1

La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)
Publier sur MédiaSpip

13 juin 2013

Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 20

Sur d’autres sites (13733)

ffmpeg send udp stream

26 avril 2017, par Luzwitz

I stream my screen and i want send stream on a server with udp.

So, I have this command :

ffmpeg -ss 00:00:00 -s 1920x1080 -f x11grab -i :0.0+0,0 -copyts -vf "scale=-1:min(ih*1920/iw\,1080),pad=1920:1080:(1920-iw)/2:(1080-ih)/2:black" -c:v libvpx -b:v 4M -crf 16 -quality realtime -cpu-used 8 -c:a libvorbis -f webm udp://127.0.0.1:8080

And server in C :

int sock, clientlen, n, port = 8080;

char buf[1024], *host;



FILE *file;



struct sockaddr_in serveraddr;

struct sockaddr_in clientaddr;

struct hostent *hostp;



sock = socket(AF_INET, SOCK_DGRAM, 0);



bzero((char *) &amp;serveraddr, sizeof(serveraddr));



serveraddr.sin_family = AF_INET;

serveraddr.sin_addr.s_addr = htonl(INADDR_ANY);

serveraddr.sin_port = htons((unsigned short)port);



if(bind(sock, (struct sockaddr *) &amp;serveraddr, sizeof(serveraddr)) &lt; 0) 

    clientlen = sizeof(clientaddr);



file = fopen("out.webm", "wb"));



printf("En attente de données...\n");



while(1)

{

    bzero(buf, 1024);



    n = recvfrom(sock, buf, 1024, 0, (struct sockaddr *) &amp;clientaddr, &amp;clientlen);



    hostp = gethostbyaddr((const char *)&amp;clientaddr.sin_addr.s_addr, sizeof(clientaddr.sin_addr.s_addr), AF_INET);



    host = inet_ntoa(clientaddr.sin_addr);



    fwrite(buf, n, 1, file);

}

And, when i play out.webm, i haven’t video.

ffmpeg concat only continues audio, not video

23 avril 2017, par Stefan

I’m trying to concat 3 videos with ffmpeg. Here the code I use.

ffmpeg -f concat -safe 0 -i c:/ffmpeg/data/mylist.txt -c copy output.mp4

In my first try the first video played for the set time and then nothing more happened. There I tried to sync the audio and ran the following on all videos.

ffmpeg -i c:/ffmpeg/data/intro.mp4 -af apad -c:v copy -b:a 384k -shortest -avoid_negative_ts make_zero -fflags +genpts intro.mp4

After running the concat again, now the audio from all 3 files play throughout the video, but only the video from the first video shows throughout the whole video.

I’ve tried to to get the video tracks in the same encoding with the following without any changed in th concat result.

ffmpeg -i c:/ffmpeg/data/video1.mp4 -r 24 video1.mp4

AND

ffmpeg -i c:/ffmpeg/data/video1.mp4 -af apad -c:v copy -b:v 64k -b:a 384k -shortest -avoid_negative_ts make_zero -fflags +genpts video1.mp4

Here the ffprobe results for the 3 videos

* FILE1 - INTRO *

[STREAM]

index=0

codec_name=mpeg4

codec_long_name=MPEG-4 part 2

profile=Simple Profile

codec_type=video

codec_time_base=9899/237568

codec_tag_string=mp4v

codec_tag=0x7634706d

width=1920

height=1080

coded_width=1920

coded_height=1080

has_b_frames=0

sample_aspect_ratio=1:1

display_aspect_ratio=16:9

pix_fmt=yuv420p

level=1

color_range=N/A

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=24/1

avg_frame_rate=237568/9899

time_base=1/12288

start_pts=0

start_time=0.000000

duration_ts=118788

duration=9.666992

bit_rate=7558738

max_bit_rate=7558738

bits_per_raw_sample=N/A

nb_frames=232

nb_read_frames=N/A

nb_read_packets=N/A

DISPOSITION:default=1

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

TAG:language=und

TAG:handler_name=VideoHandler

[/STREAM]

[FORMAT]

filename=c:/ffmpeg/data/intro.mp4

nb_streams=1

nb_programs=0

format_name=mov,mp4,m4a,3gp,3g2,mj2

format_long_name=QuickTime / MOV

start_time=0.000000

duration=9.667000

size=9135788

bit_rate=7560391

probe_score=100

TAG:major_brand=isom

TAG:minor_version=512

TAG:compatible_brands=isomiso2mp41

TAG:encoder=Lavf57.72.101

[/FORMAT]

* FILE3 - VIDEO1 *

    [STREAM]

index=0

codec_name=h264

codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10

profile=High

codec_type=video

codec_time_base=1/48

codec_tag_string=avc1

codec_tag=0x31637661

width=1280

height=720

coded_width=1280

coded_height=720

has_b_frames=2

sample_aspect_ratio=1:1

display_aspect_ratio=16:9

pix_fmt=yuv420p

level=31

color_range=N/A

color_space=unknown

color_transfer=unknown

color_primaries=unknown

chroma_location=left

field_order=unknown

timecode=N/A

refs=1

is_avc=true

nal_length_size=4

id=N/A

r_frame_rate=24/1

avg_frame_rate=24/1

time_base=1/12288

start_pts=0

start_time=0.000000

duration_ts=470016

duration=38.250000

bit_rate=1550579

max_bit_rate=N/A

bits_per_raw_sample=8

nb_frames=918

nb_read_frames=N/A

nb_read_packets=N/A

DISPOSITION:default=1

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

TAG:language=und

TAG:handler_name=VideoHandler

[/STREAM]

[STREAM]

index=1

codec_name=aac

codec_long_name=AAC (Advanced Audio Coding)

profile=LC

codec_type=audio

codec_time_base=1/44100

codec_tag_string=mp4a

codec_tag=0x6134706d

sample_fmt=fltp

sample_rate=44100

channels=1

channel_layout=mono

bits_per_sample=0

id=N/A

r_frame_rate=0/0

avg_frame_rate=0/0

time_base=1/44100

start_pts=0

start_time=0.000000

duration_ts=1679328

duration=38.080000

bit_rate=70141

max_bit_rate=70141

bits_per_raw_sample=N/A

nb_frames=1641

nb_read_frames=N/A

nb_read_packets=N/A

DISPOSITION:default=1

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

TAG:language=und

TAG:handler_name=SoundHandler

[/STREAM]

[FORMAT]

filename=c:/ffmpeg/data/video1.mp4

nb_streams=2

nb_programs=0

format_name=mov,mp4,m4a,3gp,3g2,mj2

format_long_name=QuickTime / MOV

start_time=0.000000

duration=38.250000

size=7778497

bit_rate=1626875

probe_score=100

TAG:major_brand=isom

TAG:minor_version=512

TAG:compatible_brands=isomiso2avc1mp41

TAG:encoder=Lavf57.72.101

[/FORMAT]

* FILE3 - OUTRO *

[STREAM]

index=0

codec_name=mpeg4

codec_long_name=MPEG-4 part 2

profile=Simple Profile

codec_type=video

codec_time_base=3115/74752

codec_tag_string=mp4v

codec_tag=0x7634706d

width=1920

height=1080

coded_width=1920

coded_height=1080

has_b_frames=0

sample_aspect_ratio=1:1

display_aspect_ratio=16:9

pix_fmt=yuv420p

level=1

color_range=N/A

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=24/1

avg_frame_rate=74752/3115

time_base=1/12288

start_pts=565

start_time=0.045980

duration_ts=75325

duration=6.129964

bit_rate=3968655

max_bit_rate=3968655

bits_per_raw_sample=N/A

nb_frames=146

nb_read_frames=N/A

nb_read_packets=N/A

DISPOSITION:default=1

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

TAG:language=und

TAG:handler_name=VideoHandler

[/STREAM]

[STREAM]

index=1

codec_name=aac

codec_long_name=AAC (Advanced Audio Coding)

profile=LC

codec_type=audio

codec_time_base=1/44100

codec_tag_string=mp4a

codec_tag=0x6134706d

sample_fmt=fltp

sample_rate=44100

channels=2

channel_layout=stereo

bits_per_sample=0

id=N/A

r_frame_rate=0/0

avg_frame_rate=0/0

time_base=1/44100

start_pts=0

start_time=0.000000

duration_ts=268304

duration=6.083991

bit_rate=266855

max_bit_rate=384000

bits_per_raw_sample=N/A

nb_frames=262

nb_read_frames=N/A

nb_read_packets=N/A

DISPOSITION:default=1

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

TAG:language=und

TAG:handler_name=SoundHandler

[/STREAM]

[FORMAT]

filename=c:/ffmpeg/data/outro.mp4

nb_streams=2

nb_programs=0

format_name=mov,mp4,m4a,3gp,3g2,mj2

format_long_name=QuickTime / MOV

start_time=0.000000

duration=6.084000

size=3226018

bit_rate=4241969

probe_score=100

TAG:major_brand=isom

TAG:minor_version=512

TAG:compatible_brands=isomiso2mp41

TAG:encoder=Lavf57.72.101

[/FORMAT]

Video cropping with FFMpeg on Android is very slow [duplicate]

7 avril 2017, par Rami Jemli

This question already has an answer here :

Fast Video Compression on Android

2 answers

What i tried :

I am trying to implement video cropping on android using FFMpeg (ffmpeg-android).

Here is the command I use :

String[] complexCommand = {"-i", inputPath, "-strict", "experimental", "-vf", "crop=1080:1080:0:0", "-threads", "5", "-c:v", "libx264", "-preset", "ultrafast", filePath};

The problem :

Video cropping is working, but even though I am using all needed options to make the operation fast, it still takes a 1min long video the same duration to crop.

How can I achieve better speeds ?
Will I need to implement video cropping on server instead of device ?
Is there another way to implement video cropping on Android instead of FFMpeg ?

I understand that I can achieve better UX by letting the user edit a cropped TextureView/SurfaceView while doing the actual cropping in background, but I want to avoid this way as it takes more time.

UPDATE

Here is FFMpeg’s log output :

SUCCESS with output : ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers

    built with gcc 4.8 (GCC)

    configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=

    libavutil      55. 17.103 / 55. 17.103

    libavcodec     57. 24.102 / 57. 24.102

    libavformat    57. 25.100 / 57. 25.100

    libavdevice    57.  0.101 / 57.  0.101

    libavfilter     6. 31.100 /  6. 31.100

    libswscale      4.  0.100 /  4.  0.100

    libswresample   2.  0.101 /  2.  0.101

    libpostproc    54.  0.100 / 54.  0.100

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/DCIM/100ANDRO/MOV_0066.mp4':

    Metadata:

    major_brand     : mp42

    minor_version   : 0

    compatible_brands: isommp42

    creation_time   : 2017-04-02 11:58:58

    com.android.version: 6.0.1

    Duration: 00:00:59.60, start: 0.000000, bitrate: 17759 kb/s

    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 17498 kb/s, SAR 1:1 DAR 16:9, 29.90 fps, 29.92 tbr, 90k tbn, 180k tbc (default)

    Metadata:

    rotate          : 90

    creation_time   : 2017-04-02 11:58:58

    handler_name    : VideoHandle

    Side data:

    displaymatrix: rotation of -90.00 degrees

    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 155 kb/s (default)

    Metadata:

    creation_time   : 2017-04-02 11:58:58

    handler_name    : SoundHandle

    [libx264 @ 0xb5bc4400] using SAR=1/1

    [libx264 @ 0xb5bc4400] using cpu capabilities: none!

    [libx264 @ 0xb5bc4400] profile High 4:4:4 Predictive, level 3.2, 4:2:0 8-bit

    [libx264 @ 0xb5bc4400] 64 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0x1 me=dia subme=1 psy=0 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=0 chroma_qp_offset=0 threads=5 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc=cqp mbtree=0 qp=0

    Output #0, mp4, to '/storage/emulated/0/Download/compress_video1.mp4':

    Metadata:

    major_brand     : mp42

    minor_version   : 0

    compatible_brands: isommp42

    com.android.version: 6.0.1

    encoder         : Lavf57.25.100

    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1080x1080 [SAR 1:1 DAR 1:1], q=-1--1, 29.92 fps, 11488 tbn, 29.92 tbc (default)

    Metadata:

    handler_name    : VideoHandle

    creation_time   : 2017-04-02 11:58:58

    encoder         : Lavc57.24.102 libx264

    Side data:

    unknown side data type 10 (24 bytes)

    Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s (default)

    Metadata:

    creation_time   : 2017-04-02 11:58:58

    handler_name    : SoundHandle

    encoder         : Lavc57.24.102 aac

    Stream mapping:

    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))

    Stream #0:1 -> #0:1 (aac (native) -> aac (native))

    Press [q] to stop, [?] for help

    frame=    6 fps=0.0 q

Any help is greatly appreciated !

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Recherche avancée

Médias (1)

Bug de détection d’ogg

Autres articles (60)

Personnaliser en ajoutant son logo, sa bannière ou son image de fond

Les tâches Cron régulières de la ferme

Publier sur MédiaSpip

Sur d’autres sites (13733)

ffmpeg send udp stream

ffmpeg concat only continues audio, not video

Video cropping with FFMpeg on Android is very slow [duplicate]

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