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Médias (91)

Richard Stallman et le logiciel libre

19 octobre 2011, par kent1

Mis à jour : Mai 2013

Langue : français

Type : Texte

Tags : opensource, stallman, biographie, livre, framasoft

1
2
3
4
5
Stereo master soundtrack

17 octobre 2011, par kent1

Mis à jour : Octobre 2011

Langue : English

Type : Audio

Tags : creative commons, audio, Elephant dreams, soundtrack, flac

1
2
3
4
5
Elephants Dream - Cover of the soundtrack

17 octobre 2011, par kent1

Mis à jour : Octobre 2011

Langue : English

Type : Image

Tags : image, Elephant dreams, soundtrack

1
2
3
4
5
#7 Ambience

16 octobre 2011, par kent1

Mis à jour : Juin 2015

Langue : English

Type : Audio

Tags : creative commons, Musique, mp3, Elephant dreams, soundtrack

1
2
3
4
5
#6 Teaser Music

16 octobre 2011, par kent1

Mis à jour : Février 2013

Langue : English

Type : Audio

Tags : creative commons, Musique, mp3, Elephant dreams, soundtrack

1
2
3
4
5
#5 End Title

16 octobre 2011, par kent1

Mis à jour : Février 2013

Langue : English

Type : Audio

Tags : creative commons, Musique, mp3, Elephant dreams, soundtrack

1
2
3
4
5

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 16

Autres articles (111)

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Sur d’autres sites (10397)

Android h264 decode non-existing PPS 0 referenced

22 janvier 2014, par nmxprime

In Android JNI, using ffmpeg with libx264 use below codes to encode and decode raw rgb data !. I should use swscale to convert rgb565 to yuv420p as required by H.264. But not clear about this conversion.Please help, where i am wrong, with regard the log i get !

Code for Encoding

codecinit()- called once(JNI wrapper function)

int Java_com_my_package_codecinit (JNIEnv *env, jobject thiz) {

avcodec_register_all();

codec = avcodec_find_encoder(AV_CODEC_ID_H264);//AV_CODEC_ID_MPEG1VIDEO);

if(codec->id == AV_CODEC_ID_H264)

    __android_log_write(ANDROID_LOG_ERROR, "set","h264_encoder");



if (!codec) {

    fprintf(stderr, "codec not found\n");

    __android_log_write(ANDROID_LOG_ERROR, "codec", "not found");



}

    __android_log_write(ANDROID_LOG_ERROR, "codec", "alloc-contest3");

c= avcodec_alloc_context3(codec);

if(c == NULL)

    __android_log_write(ANDROID_LOG_ERROR, "avcodec","context-null");



picture= av_frame_alloc();



if(picture == NULL)

    __android_log_write(ANDROID_LOG_ERROR, "picture","context-null");



c->bit_rate = 400000;

c->height = 800;

c->time_base= (AVRational){1,25};

c->gop_size = 10; 

c->max_b_frames=1;

c->pix_fmt = AV_PIX_FMT_YUV420P;

outbuf_size = 768000;

c->width = 480;



size = (c->width * c->height);



if (avcodec_open2(c, codec,NULL) &lt; 0) {



__android_log_write(ANDROID_LOG_ERROR, "codec", "could not open");





}



ret = av_image_alloc(picture->data, picture->linesize, c->width, c->height,

                     c->pix_fmt, 32);

if (ret &lt; 0) {

        __android_log_write(ANDROID_LOG_ERROR, "image","alloc-failed");

    fprintf(stderr, "could not alloc raw picture buffer\n");



}



picture->format = c->pix_fmt;

picture->width  = c->width;

picture->height = c->height;

return 0;



}

encodeframe()-called in a while loop

int Java_com_my_package_encodeframe (JNIEnv *env, jobject thiz,jbyteArray buffer) {

jbyte *temp= (*env)->GetByteArrayElements(env, buffer, 0);

Output = (char *)temp;

const uint8_t * const inData[1] = { Output }; 

const int inLinesize[1] = { 2*c->width };



//swscale should implement here



    av_init_packet(&amp;pkt);

    pkt.data = NULL;    // packet data will be allocated by the encoder

    pkt.size = 0;



    fflush(stdout);

picture->data[0] = Output;

ret = avcodec_encode_video2(c, &amp;pkt, picture,&amp;got_output);



    fprintf(stderr,"ret = %d, got-out = %d \n",ret,got_output);

     if (ret &lt; 0) {

                __android_log_write(ANDROID_LOG_ERROR, "error","encoding");

        if(got_output > 0)

        __android_log_write(ANDROID_LOG_ERROR, "got_output","is non-zero");



    }



    if (got_output) {

        fprintf(stderr,"encoding frame %3d (size=%5d): (ret=%d)\n", 1, pkt.size,ret);

        fprintf(stderr,"before caling decode");

        decode_inline(&amp;pkt); //function that decodes right after the encode

        fprintf(stderr,"after caling decode");





        av_free_packet(&amp;pkt);

    }





fprintf(stderr,"y val: %d \n",y);





(*env)->ReleaseByteArrayElements(env, buffer, Output, 0);

return ((ret));

}

decode_inline() function

decode_inline(AVPacket *avpkt){

AVCodec *codec;

AVCodecContext *c = NULL;

int frame, got_picture, len = -1,temp=0;



AVFrame *rawFrame, *rgbFrame;

uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];

char buf[1024];

char rawBuf[768000],rgbBuf[768000];



struct SwsContext *sws_ctx;



memset(inbuf + INBUF_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);

avcodec_register_all();



c= avcodec_alloc_context3(codec);

if(c == NULL)

    __android_log_write(ANDROID_LOG_ERROR, "avcodec","context-null");



codec = avcodec_find_decoder(AV_CODEC_ID_H264);

if (!codec) {

    fprintf(stderr, "codec not found\n");

    fprintf(stderr, "codec = %p \n", codec);

    }

c->pix_fmt = AV_PIX_FMT_YUV420P;

c->width = 480;

c->height = 800;



rawFrame = av_frame_alloc();

rgbFrame = av_frame_alloc();



if (avcodec_open2(c, codec, NULL) &lt; 0) {

    fprintf(stderr, "could not open codec\n");

    exit(1);

    }

sws_ctx = sws_getContext(c->width, c->height,/*PIX_FMT_RGB565BE*/

            PIX_FMT_YUV420P, c->width, c->height, AV_PIX_FMT_RGB565/*PIX_FMT_YUV420P*/,

            SWS_BILINEAR, NULL, NULL, NULL);





frame = 0;



unsigned short *decodedpixels = &amp;rawBuf;

rawFrame->data[0] = &amp;rawBuf;

rgbFrame->data[0] = &amp;rgbBuf;



fprintf(stderr,"size of avpkt %d \n",avpkt->size);

temp = avpkt->size;

while (temp > 0) {

        len = avcodec_decode_video2(c, rawFrame, &amp;got_picture, avpkt);



        if (len &lt; 0) {

            fprintf(stderr, "Error while decoding frame %d\n", frame);

            exit(1);

            }

        temp -= len;

        avpkt->data += len;



        if (got_picture) {

            printf("saving frame %3d\n", frame);

            fflush(stdout);

        //TODO  

        //memcpy(decodedpixels,rawFrame->data[0],rawFrame->linesize[0]); 

        //  decodedpixels +=rawFrame->linesize[0];



            frame++;

            }



        }



avcodec_close(c);

av_free(c);

//free(rawBuf);

//free(rgbBuf);

av_frame_free(&amp;rawFrame);

av_frame_free(&amp;rgbFrame);

}

The log i get

For the decode_inline() function :

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] non-existing PPS 0 referenced

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] decode_slice_header error

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] non-existing PPS 0 referenced

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] decode_slice_header error

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] non-existing PPS 0 referenced

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] decode_slice_header error

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] non-existing PPS 0 referenced

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] decode_slice_header error

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] non-existing PPS 0 referenced

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] decode_slice_header error

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] non-existing PPS 0 referenced

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] decode_slice_header error

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] non-existing PPS 0 referenced

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] decode_slice_header error

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] non-existing PPS 0 referenced

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] decode_slice_header error

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] non-existing PPS 0 referenced

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] decode_slice_header error

01-02 14:50:50.160: I/stderr(3407): [h264 @ 0x8db540] Invalid mix of idr and non-idr slices

01-02 14:50:50.160: I/stderr(3407): Error while decoding frame 0

Edit : Changing GOP value :

If i change c->gop_size = 3; as expected it emits one I frame every three frames. The non-existing PPS 0 referenced message is not there for in every third execution, but all other have this message

FFMPEG subtitle : mov_text removal

27 mars 2014, par user3461178

I have problems with subtitles. My video playout can not play them. So I have been trying to remove it.

C:\Users\Jakub\Desktop\eclipse\workspace\tvpohoda_archiv>"c:\\lib/ffmpeg/bin/ffm

peg.exe" -i "videa/1050028-CITRON_-_Uz_zavrate_ridnou_c.m4v"  -sn -c:a copy -c:v

 copy  "videa/1050028-CITRON_-_Uz_zavrate_ridnou_c2.mov"

ffmpeg version N-57650-gcb52d6d Copyright (c) 2000-2013 the FFmpeg developers

  built on Oct 30 2013 20:35:46 with gcc 4.8.2 (GCC)

  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av

isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab

le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp

e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena

ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l

ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp

eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa

cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp

ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib

  libavutil      52. 48.100 / 52. 48.100

  libavcodec     55. 39.100 / 55. 39.100

  libavformat    55. 19.104 / 55. 19.104

  libavdevice    55.  5.100 / 55.  5.100

  libavfilter     3. 90.100 /  3. 90.100

  libswscale      2.  5.101 /  2.  5.101

  libswresample   0. 17.104 /  0. 17.104

  libpostproc    52.  3.100 / 52.  3.100

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from &#39;videa/1050028-CITRON_-_Uz_zavrate_ridno

u_c.m4v&#39;:

  Metadata:

    major_brand     : M4V

    minor_version   : 512

    compatible_brands: isomiso2avc1

    encoder         : Lavf55.19.104

  Duration: 00:04:56.49, start: 0.021333, bitrate: 7239 kb/s

    Chapter #0.0: start 0.000000, end 296.400000

    Metadata:

      title           : Chapter 1

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x576 [

SAR 212:225 DAR 53:45], 6997 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)

    Metadata:

      handler_name    : VideoHandler

    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 24

0 kb/s (default)

    Metadata:

      handler_name    : SoundHandler

    Stream #0:2(eng): Subtitle: mov_text (text / 0x74786574)

    Metadata:

      handler_name    : SubtitleHandler

File &#39;videa/1050028-CITRON_-_Uz_zavrate_ridnou_c2.mov&#39; already exists. Overwrite

 ? [y/N] y

Output #0, mov, to &#39;videa/1050028-CITRON_-_Uz_zavrate_ridnou_c2.mov&#39;:

  Metadata:

    major_brand     : M4V

    minor_version   : 512

    compatible_brands: isomiso2avc1

    encoder         : Lavf55.19.104

    Chapter #0.0: start 0.021000, end 296.421000

    Metadata:

      title           : Chapter 1

    Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p, 720x576 [SAR 212

:225 DAR 53:45], q=2-31, 6997 kb/s, 25 fps, 12800 tbn, 12800 tbc (default)

    Metadata:

      handler_name    : VideoHandler

    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, 240 kb/s

 (default)

    Metadata:

      handler_name    : SoundHandler

Stream mapping:

  Stream #0:0 -> #0:0 (copy)

  Stream #0:1 -> #0:1 (copy)

Press [q] to stop, [?] for help

frame= 7408 fps=0.0 q=-1.0 Lsize=  262031kB time=00:04:56.49 bitrate=7239.9kbits

/s

video:253116kB audio:8700kB subtitle:0 global headers:0kB muxing overhead 0.0820

40%

Or :

C:\Users\Jakub\Desktop\eclipse\workspace\tvpohoda_archiv>"c:\\lib/ffmpeg/bin/ffm

peg.exe" -i "videa/1050028-CITRON_-_Uz_zavrate_ridnou_c.m4v"  -map 0:0 -map 0:1

-c:a copy -c:v copy  "videa/1050028-CITRON_-_Uz_zavrate_ridnou_c2.mov"

ffmpeg version N-57650-gcb52d6d Copyright (c) 2000-2013 the FFmpeg developers

  built on Oct 30 2013 20:35:46 with gcc 4.8.2 (GCC)

  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av

isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab

le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp

e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena

ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l

ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp

eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa

cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp

ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib

  libavutil      52. 48.100 / 52. 48.100

  libavcodec     55. 39.100 / 55. 39.100

  libavformat    55. 19.104 / 55. 19.104

  libavdevice    55.  5.100 / 55.  5.100

  libavfilter     3. 90.100 /  3. 90.100

  libswscale      2.  5.101 /  2.  5.101

  libswresample   0. 17.104 /  0. 17.104

  libpostproc    52.  3.100 / 52.  3.100

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from &#39;videa/1050028-CITRON_-_Uz_zavrate_ridno

u_c.m4v&#39;:

  Metadata:

    major_brand     : M4V

    minor_version   : 512

    compatible_brands: isomiso2avc1

    encoder         : Lavf55.19.104

  Duration: 00:04:56.49, start: 0.021333, bitrate: 7239 kb/s

    Chapter #0.0: start 0.000000, end 296.400000

    Metadata:

      title           : Chapter 1

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x576 [

SAR 212:225 DAR 53:45], 6997 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)

    Metadata:

      handler_name    : VideoHandler

    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 24

0 kb/s (default)

    Metadata:

      handler_name    : SoundHandler

    Stream #0:2(eng): Subtitle: mov_text (text / 0x74786574)

    Metadata:

      handler_name    : SubtitleHandler

Output #0, mov, to &#39;videa/1050028-CITRON_-_Uz_zavrate_ridnou_c2.mov&#39;:

  Metadata:

    major_brand     : M4V

    minor_version   : 512

    compatible_brands: isomiso2avc1

    encoder         : Lavf55.19.104

    Chapter #0.0: start 0.021000, end 296.421000

    Metadata:

      title           : Chapter 1

    Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p, 720x576 [SAR 212

:225 DAR 53:45], q=2-31, 6997 kb/s, 25 fps, 12800 tbn, 12800 tbc (default)

    Metadata:

      handler_name    : VideoHandler

    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, 240 kb/s

 (default)

    Metadata:

      handler_name    : SoundHandler

Stream mapping:

  Stream #0:0 -> #0:0 (copy)

  Stream #0:1 -> #0:1 (copy)

Press [q] to stop, [?] for help

frame= 2702 fps=0.0 q=-1.0 size=   95498kB time=00:01:48.03 bitrate=7241.6kbits/

frame= 4436 fps=4435 q=-1.0 size=  157319kB time=00:02:57.38 bitrate=7265.2kbits

frame= 6296 fps=4196 q=-1.0 size=  223194kB time=00:04:11.77 bitrate=7262.0kbits

frame= 7408 fps=4121 q=-1.0 Lsize=  262031kB time=00:04:56.49 bitrate=7239.9kbit

s/s

video:253116kB audio:8700kB subtitle:0 global headers:0kB muxing overhead 0.0820

40%

But it did not worked, subtitles have stayed there.

i am normally starting this ffmpeg from java but this files are from command line

Please can you help me ?

Encoding video using FFmpeg and FreeImage

14 mai 2014, par mike

I have to make a video encoder to encode video using mjpeg codec from many jpgs saved on the disk. I use FreeImage to load images and ffmpeg to encode. Unfortunately, the output video isn’t that what I expect. I can’t play it in MPC. VLC can play it but there is only a single quick flash of the last picture I loaded. I want to have 1 fps video and for example I loaded 4 frames so my video should last 4 seconds.

Input pictures are in BGR24 pixel format.

What is more, when I run my code I got swscaler warning that picture format YUVJ420P is deprecated but I cant find another pixel format which is suitable for MJPEG codec.

Here is my source code :

AVPixelFormat in_pix_fmt = AV_PIX_FMT_BGR24;

AVPixelFormat out_pix_fmt = AV_PIX_FMT_YUVJ420P;



AVCodec *pCodec;

AVCodecContext *pCodecCtx = NULL;

int out_size = 0;

int size, outbuf_size, i, outpic_size, w, h;

FILE *file;

const char *videofile_name = "test_video_cpp.avi";

AVFrame *picture, *outpic;

uint8_t *outbuf, *picture_buf, *outpic_buf;



av_register_all();



pCodec = avcodec_find_encoder(CODEC_ID_MJPEG);

if (!pCodec)

{

    cout &lt;&lt; "Codec not found\n\n";

    return 1;

}



pCodecCtx = avcodec_alloc_context3(pCodec);

picture = avcodec_alloc_frame();

outpic = avcodec_alloc_frame();



pCodecCtx->codec_id = CODEC_ID_MJPEG;

pCodecCtx->codec_type = AVMEDIA_TYPE_VIDEO;

pCodecCtx->pix_fmt = out_pix_fmt;

pCodecCtx->bit_rate = 400000;

pCodecCtx->width = 1688;            

pCodecCtx->height = 728;

pCodecCtx->time_base.num = 1;           

pCodecCtx->time_base.den = 1;       //fps

pCodecCtx->max_b_frames = 0;



outbuf_size = 500000;

outbuf = new uint8_t[outbuf_size];



if (avcodec_open2(pCodecCtx, pCodec, NULL) &lt; 0)     //open codec

{

    cout &lt;&lt; "Could not open codec\n";

    exit(1);

}



file = fopen(videofile_name, "wb");                 //open file

if (!file)

{

    cout &lt;&lt; "Could not open " &lt;&lt; videofile_name &lt;&lt; endl;

    exit(1);

}



outpic_size = avpicture_get_size(out_pix_fmt, pCodecCtx->width, pCodecCtx->height);

outpic_buf = new uint8_t[outpic_size];

cout &lt;&lt; "Outpic size was setted to: " &lt;&lt; outpic_size &lt;&lt; endl;



size = pCodecCtx->width * pCodecCtx->height;

picture_buf = new uint8_t[size * 3];





for (i = 1; i &lt; 5; i++) 

{   

    fflush(stdout);



    stringstream ss;

    ss &lt;&lt; i;

    filename = name + ss.str() + ext;

    path = dir + filename;



    dib = FreeImage_Load(FIF_JPEG, path.c_str(), 0);



    picture_buf = FreeImage_GetBits(dib);



            h = FreeImage_GetHeight(dib);

    w = FreeImage_GetWidth(dib);



    avpicture_fill((AVPicture*)picture, picture_buf, in_pix_fmt, w, h);

    avpicture_fill((AVPicture*)outpic, outpic_buf, out_pix_fmt, pCodecCtx->width, pCodecCtx->height);



    struct SwsContext* fooContext = sws_getContext(w, h, in_pix_fmt, pCodecCtx->width, pCodecCtx->height, out_pix_fmt, SWS_BICUBIC, NULL, NULL, NULL);



    sws_scale(fooContext, picture->data, picture->linesize, 0, pCodecCtx->height, outpic->data, outpic->linesize);



    //encode single frame

    out_size = avcodec_encode_video(pCodecCtx, outpic_buf, outpic_size, outpic);

    cout &lt;&lt; "encoding frame " &lt;&lt; i &lt;&lt; "(size=" &lt;&lt; out_size &lt;&lt; ")\n";

    fwrite(outbuf, 1, out_size, file);



}



//encode delayed frames

for ( ; out_size; i++) 

{

    fflush(stdout);

    out_size = avcodec_encode_video(pCodecCtx, outbuf, outbuf_size, NULL);

    cout &lt;&lt; "write frame " &lt;&lt; i &lt;&lt; "(size=" &lt;&lt; out_size &lt;&lt; ")\n";

    fwrite(outbuf, 1, out_size, file);

}



outbuf[0] = 0x00;

outbuf[1] = 0x00;

outbuf[2] = 0x01;

outbuf[3] = 0xb7;

fwrite(outbuf, 1, 4, file);



fclose(file);

delete outbuf;

avcodec_close(pCodecCtx);

av_free(pCodecCtx);

avpicture_free((AVPicture*)picture);

avpicture_free((AVPicture*)outpic);

delete picture_buf;

delete outpic_buf;

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