Recherche avancée

Sur d’autres sites (5416)

• m3u8-segmenter not compiling

  15 novembre 2012, par Publiccert

  root@ip-**-**-**-**:/home/jeff/m3u8-segmenter# ./configure
  
  checking for a BSD-compatible install... /usr/bin/install -c
  
  checking whether build environment is sane... yes
  
  checking for a thread-safe mkdir -p... /bin/mkdir -p
  
  checking for gawk... no
  
  checking for mawk... mawk
  
  checking whether make sets $(MAKE)... yes
  
  checking for gcc... gcc
  
  checking whether the C compiler works... yes
  
  checking for C compiler default output file name... a.out
  
  checking for suffix of executables...
  
  checking whether we are cross compiling... no
  
  checking for suffix of object files... o
  
  checking whether we are using the GNU C compiler... yes
  
  checking whether gcc accepts -g... yes
  
  checking for gcc option to accept ISO C89... none needed
  
  checking for style of include used by make... GNU
  
  checking dependency style of gcc... gcc3
  
  checking whether make sets $(MAKE)... (cached) yes
  
  checking how to run the C preprocessor... gcc -E
  
  checking for grep that handles long lines and -e... /bin/grep
  
  checking for egrep... /bin/grep -E
  
  checking for ANSI C header files... yes
  
  checking for sys/types.h... yes
  
  checking for sys/stat.h... yes
  
  checking for stdlib.h... yes
  
  checking for string.h... yes
  
  checking for memory.h... yes
  
  checking for strings.h... yes
  
  checking for inttypes.h... yes
  
  checking for stdint.h... yes
  
  checking for unistd.h... yes
  
  checking for sys/types.h... (cached) yes
  
  checking signal.h usability... yes
  
  checking signal.h presence... yes
  
  checking for signal.h... yes
  
  checking getopt.h usability... yes
  
  checking getopt.h presence... yes
  
  checking for getopt.h... yes
  
  checking for stdlib.h... (cached) yes
  
  checking for GNU libc compatible malloc... yes
  
  checking for memmove... yes
  
  checking for memset... yes
  
  checking for strrchr... yes
  
  checking for strtol... yes
  
  ./configure: line 4160: PKG_PROG: command not found
  
  ./configure: line 4161: syntax error near unexpected token `FFMPEG,'
  
  ./configure: line 4161: `PKG_CHECK_MODULES(FFMPEG, libavformat libavcodec libavutil)'

  All my dependencies are in place, including FFMPEG, PKG_PROG, etc but I'm getting these errors and at a loss. Any ideas ?

• Révision 108131 : [ux] Placer la prévisualisation du forum sous le forum (au lieu de dessus)

  20 décembre 2017, par erational@erational.org

  https://core.spip.net/issues/4063

• FFMPEG zip stream c++

  26 janvier 2018, par Javier Ramírez

  I have the following code at the start to load a video from a file

    SwsContext *img_convert_ctx = NULL;
  
    AVFormatContext *pFormatCtx = NULL;
  
    AVCodecContext  *pCodecCtx = NULL;
  
    AVCodec *pCodec = NULL;
  
    AVFrame *pFrameRGB = NULL;
  
    AVFrame *pFrame = NULL;
  
    uint8_t *buffer = NULL;
  
    AVPacket packet;
  
  
  
    av_register_all();
  
    if(avformat_open_input(&pFormatCtx,"video.avi",NULL,NULL) != 0)return GL_FALSE;
  
    if(avformat_find_stream_info(pFormatCtx,NULL) < 0)return GL_FALSE;
  
    av_dump_format(pFormatCtx,0,"video.avi",0);
  
  
  
    pCodecCtx = pFormatCtx->streams[0]->codec;
  
    pCodec = avcodec_find_decoder(pCodecCtx->codec_id);
  
    if(pCodec == NULL)return GL_FALSE;
  
    if(avcodec_open2(pCodecCtx,pCodec,NULL) < 0)return GL_FALSE;
  
  
  
    pFrame    = av_frame_alloc();
  
    pFrameRGB = av_frame_alloc();
  
  
  
    GLint numBytes;
  
    numBytes  = avpicture_get_size(AV_PIX_FMT_RGB24,pCodecCtx->width,pCodecCtx->height); //obsoleto
  
    buffer    = (uint8_t *)av_malloc(numBytes*sizeof(uint8_t));
  
    avpicture_fill((AVPicture *)pFrameRGB,buffer,AV_PIX_FMT_RGB24,pCodecCtx->width,pCodecCtx->height); //obsoleto
  
    img_convert_ctx = sws_getContext(pCodecCtx->width,pCodecCtx->height,pCodecCtx->pix_fmt,pCodecCtx->width,pCodecCtx->height,AV_PIX_FMT_RGB24,SWS_BICUBIC,NULL,NULL,NULL);
  
  
  
    GLuint fotograma;
  
    GLuint vboLienzo;
  
    GLuint vboImagen;
  
    GLuint CuadroAnc;
  
    GLuint CuadroAlt;
  
    double ticks = 0.0;
  
    int frameFin = 0;
  
  
  
    glGenTextures(1,&fotograma);
  
    glBindTexture(GL_TEXTURE_RECTANGLE_ARB,fotograma);
  
    glTexParameteri(GL_TEXTURE_RECTANGLE_ARB,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
  
    glTexParameteri(GL_TEXTURE_RECTANGLE_ARB,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
  
    glTexImage2D(GL_TEXTURE_RECTANGLE_ARB,0,GL_RGB,pCodecCtx->width,pCodecCtx->height,0,GL_RGB,GL_UNSIGNED_BYTE,NULL);
  
  
  
    CuadroAnc   = pCodecCtx->width;
  
    CuadroAlt   = pCodecCtx->height;
  
    GLfloat anc = (GLfloat)pCodecCtx->width/2;
  
    GLfloat alt = (GLfloat)pCodecCtx->height/2;
  
    GLfloat datos[8] = {-anc,alt,-anc,-alt,anc,-alt,anc,alt};
  
    GLfloat dtext[8]  = {0.0,0.0,0.0,alt*2.0f,anc*2.0f,alt*2.0f,anc*2.0f,0.0};
  
  
  
    glGenBuffers(1,&vboLienzo);
  
    glBindBuffer(GL_ARRAY_BUFFER,vboLienzo);
  
    glBufferData(GL_ARRAY_BUFFER,sizeof(datos),datos,GL_STATIC_DRAW);
  
  
  
    glGenBuffers(1,&vboImagen);
  
    glBindBuffer(GL_ARRAY_BUFFER,vboImagen);
  
    glBufferData(GL_ARRAY_BUFFER,sizeof(dtext),dtext,GL_STATIC_DRAW);

  But now I want to read the video from a zip file. I already have how to extract the data from the zip file, but I do not know what function of ffmpeg I should use to read the data from the zip file.