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  • MediaSPIP v0.2

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  • Add 2 pictures to video with durations ? [duplicate]

    24 juin 2013, par jesper

    This question already has an answer here :

    I am trying to add 2 different images into a video with ffmpeg.

    image1.jpg should show the first 10 seconds of the movie and youtubeLOL.png should show the next 6 minutes of the video.

    So the command should tell us also to repeat the pictures to get a length for 6 minutes and 10 seconds. How can i do this ? I have tried this :

    (It's not even working)

     passthru("ffmpeg -f image2 -loop 1 -vframes 100 -i /home/psafari/public_html/youtube_images/movie_" . $id . ".jpg -vcodec mpeg4 /home/psafari/public_html/youtube_videos/movie_" . time().".avi");

    Here is output :

    FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6) configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.19. 0 / 1.19. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc 51. 2. 0 / 51. 2. 0 
    

    
Invalid value '1' for option 'loop'

    output memcode

     MEncoder SVN-r31628-4.4.6 (C) 2000-2010 MPlayer Team
    
 get_path("config") problem
    
 success: format: 0  data: 0x0 - 0x1251b
    
 libavformat file format detected.
    
 [lavf] stream 0: video (h264), -vid 0
    
 VIDEO:  [H264]  540x800  24bpp  25.000 fps  116.3 kbps (14.2 kbyte/s)
    
 [V] filefmt:44  fourcc:0x34363248  size:540x800  fps:25.000  ftime:=0.0400
    
 videocodec: framecopy (540x800 24bpp fourcc=34363248)
    
 Writing header...
    
 ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
    
 Writing header...
    
 ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
    
 Pos:   0.0s      1f (100%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
    
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 success: format: 0  data: 0x0 - 0x9daf8
    
 libavformat file format detected.
    
 [lavf] stream 0: video (h264), -vid 0
    
 VIDEO:  [H264]  640x400  24bpp  25.000 fps   21.8 kbps ( 2.7 kbyte/s)
    
 [V] filefmt:44  fourcc:0x34363248  size:640x400  fps:25.000  ftime:=0.0400
    
 videocodec: framecopy (540x800 24bpp fourcc=34363248)
    
 videocodec: framecopy (640x400 24bpp fourcc=34363248)
    

    
 All video files must have identical fps, resolution, and codec for -ovc copy.
    

    
 Exiting...

  • How to call ffmpeg from Activity ?

    11 juin 2013, par Vishwas

    I want to use ffmpeg to change the resolution of video.

    However, i don't know how can i call ffmpeg executable from activity in android.

    I am using eclipse and Windows 7

    Any help will be appreciated.

  • converting images to mp4 using ffmpeg on iphone

    29 novembre 2011, par user633901

    Up till now, i can create mpeg1 but with no luck for mp4.Maybe we can talk and share information.Someone told me that i have to set some flags for using mp4.But i am stuck at using it...

    following is the working code :

    av_register_all();
    
printf("Video encoding\n"); 
    

    
/// find the mpeg video encoder 
    
//codec=avcodec_find_encoder(CODEC_ID_MPEG1VIDEO); 
    
codec = avcodec_find_encoder(CODEC_ID_MPEG4); 
    

    
if (!codec) { 
    
    fprintf(stderr, "codec not found\n"); 
    
    exit(1); 
    
} 
    

    
c = avcodec_alloc_context(); 
    
picture = avcodec_alloc_frame(); 
    

    
// put sample parameters 
    
c->bit_rate = 400000;
    
/// resolution must be a multiple of two 
    
c->width = 240; 
    
c->height = 320; 
    
//c->codec_id = fmt->video_codec;
    
//frames per second 
    
c->time_base= (AVRational){1,25}; 
    
c->gop_size = 10; /// emit one intra frame every ten frames 
    
c->max_b_frames=1; 
    
c->pix_fmt =PIX_FMT_YUV420P; // PIX_FMT_YUV420P
    

    
if (avcodec_open(c, codec) < 0) { 
    
    fprintf(stderr, "could not open codec\n"); 
    
    exit(1); 
    
}
    

    
f = fopen([[NSHomeDirectory() stringByAppendingPathComponent:@"test.mp4"] UTF8String], "wb"); 
    

    
if (!f) { 
    
    fprintf(stderr, "could not open %s\n",[@"test.mp4" UTF8String]); 
    
    exit(1); 
    
} 
    

    
// alloc image and output buffer 
    
outbuf_size = 100000; 
    
outbuf = malloc(outbuf_size); 
    
size = c->width * c->height; 
    

    
#pragma mark - 
    

    
AVFrame* outpic = avcodec_alloc_frame(); 
    
int nbytes = avpicture_get_size(PIX_FMT_YUV420P, c->width, c->height); //this is half size of numbytes. 
    

    
//create buffer for the output image 
    
uint8_t* outbuffer = (uint8_t*)av_malloc(nbytes); 
    

    
#pragma mark -  
    
for(k=0;k<1;k++) { 
    
    for(i=0;i<25;i++) { 
    
        fflush(stdout); 
    

    
        int numBytes = avpicture_get_size(PIX_FMT_RGBA, c->width, c->height); 
    
        uint8_t *buffer = (uint8_t *)av_malloc(numBytes*sizeof(uint8_t)); 
    

    
        UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.png", i+1]]; 
    
        CGImageRef newCgImage = [image CGImage]; 
    

    
        CGDataProviderRef dataProvider = CGImageGetDataProvider(newCgImage); 
    
        CFDataRef bitmapData = CGDataProviderCopyData(dataProvider); 
    
        buffer = (uint8_t *)CFDataGetBytePtr(bitmapData);   
    
        /////////////////////////// 
    
        //outbuffer=(uint8_t *)CFDataGetBytePtr(bitmapData); 
    
        ////////////////////////// 
    
        avpicture_fill((AVPicture*)picture, buffer, PIX_FMT_RGBA, c->width, c->height); 
    
        avpicture_fill((AVPicture*)outpic, outbuffer, PIX_FMT_YUV420P, c->width, c->height);//does not have image data. 
    

    
        struct SwsContext* fooContext = sws_getContext(c->width, c->height, 
    
                                                      PIX_FMT_RGBA, 
    
                                                      c->width, c->height, 
    
                                                      PIX_FMT_YUV420P, 
    
                                                      SWS_FAST_BILINEAR, NULL, NULL, NULL); 
    

    
        //perform the conversion 
    
        sws_scale(fooContext, picture->data, picture->linesize, 0, c->height, outpic->data, outpic->linesize); 
    
        // Here is where I try to convert to YUV 
    

    
        // encode the image 
    
        out_size = avcodec_encode_video(c, outbuf, outbuf_size, outpic); 
    
        printf("encoding frame %3d (size=%5d)\n", i, out_size); 
    
        fwrite(outbuf, 1, out_size, f); 
    

    
        free(buffer); 
    
        buffer = NULL;
    
    }
    

    
    // get the delayed frames 
    
    for(; out_size; i++) { 
    
        fflush(stdout); 
    

    
        out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL); 
    
        printf("write frame %3d (size=%5d)\n", i, out_size); 
    
        fwrite(outbuf, 1, outbuf_size, f);       
    
    } 
    
}
    

    
// add sequence end code to have a real mpeg file 
    
outbuf[0] = 0x00; 
    
outbuf[1] = 0x00; 
    
outbuf[2] = 0x01; 
    
outbuf[3] = 0xb7; 
    
fwrite(outbuf, 1, 4, f); 
    
fclose(f); 
    
free(picture_buf);
    
free(outbuf); 
    

    
avcodec_close(c); 
    
av_free(c); 
    
av_free(picture); 
    
//av_free(outpic); 
    
printf("\n");

    my msn:hieeli@hotmail.com

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