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Sur d’autres sites (10086)

  • Running ffmpeg command using shell_exec in php as a background process in windows

    2 octobre 2014, par Vedant Terkar

    I’m trying to convert a video from .mp4 to .flv in php using :

    shell_exec("ffmpeg -i input.mp4 output.flv 1>output.txt 2>&1");

    Also I am taking output of entire process in output.txt file to use it in creation of progress bar in javascript(that’s not the problem here).

    The problem is :
    if video(input.mp4) size is>50Mb then it takes too long to complete shell_exec (>30secs). which hangs the UI unnecessarily.

    So what i want to know is :

    • Is there any way to make shell_exec work together with rest of the script ?

    • I need only to initiate ffmpeg.exe via php script and then php script can terminate.

    • Once the process is initiated javascript will start its magic(at client side).

    So I need to execute shell_exec async. with rest of the script. and once the process is initiated the script should inform client by simply echoing. It should not wait for ffmpeg.exe to complete its working. Is it possible ?

    I’ve seen several similar questions on SO, many of them describing the same problem

    ex :

    Run a ffmpeg process in the background

    Run PHP Task Asynchronously

    ffmpeg Progress Bar - Encoding Percentage in PHP

    Can ffmpeg show a progress bar ?

    etc.

    BUT

    They all were using linux OS’s or Using curl. I’m using windows 8 (wamp without curl and any other add-on except ffmpeg.exe).

    So Is it possible ? can experts here please help me one more time ?

    Thanks in advance.

  • build guardianproject's ffmpeg library using android ndk for android on windows

    25 juillet 2014, par Abdul Qadir

    I need to encode/decode audio files to mp3 inside my android project using ffmpeg, but I encounter the error unknown encoder libmp3lame while doing so. On reading the guidelines on the guardianproject’s ffmpeg github page : https://github.com/guardianproject/android-ffmpeg
    I probably need to add --enable-libmp3lame in the configure_ffmpeg.sh file.

    I’m using windows. I’ve cloned the github project. I’ve edited the configure_ffmpeg.sh file. According to the guidelines to build, the following command in cmd is not working probably because I’m on windows
    github-project-root: path-to-ndk\ndk-build configure_make_everything.sh

    I get the following error :

    Android NDK: Could not find application project directory
    Android NDK: Please define NDK_PROJECT_PATH variable to point to it
    path-to-ndk\build/core/build-local.mk:/148: *** Android NDK: Aborting. Stop.

    I need to enable libmp3lame so I can encode/decode my audio files to mp3 inside my android project. Any help would be appreciated.

  • LibVLC DXVA2 Windows C++ Hardware Acceleration

    15 novembre 2016, par Sergiu Vlad

    I want to decode a h264 RTSP stream using DXVA2 Accelerated decoder. In VLC it does work but in my code have the following output :

    avcodec generic warning: threaded frame decoding is not compatible with DXVA2, disabled
    
avcodec generic debug: available hardware decoder output format 61 (dxva2_vld)
    
avcodec generic debug: available hardware decoder output format 128 (d3d11va_vld)
    
avcodec generic debug: available software decoder output format 12 (yuvj420p)
    
core generic debug: looking for hw decoder module matching "any": 1 candidates
    
core generic debug: no hw decoder modules matched

    Is this a problem with NV12 conversion ? Is there a way to force DXVA2 ?

    Thanks

    CODE :

        #include 
    
#include 
    
#include 
    
#include 
    
#include 
    
#include <iostream>
    

    
#include 
    
#include <ctime>
    
#include <vlc></vlc>vlc.h>
    

    
// RTSP address
    
const char* rtspAddress = "rtsp://admin:admin@192.168.0.245/live_st1";
    
// Video resolution WxH
    
cv::Size rtspRes(1920, 1080);
    

    
struct VideoDataStruct
    
{
    
    int param;
    
};
    

    
int done = 0;
    
libvlc_media_player_t *mp;
    
unsigned int videoBufferSize = 0;
    
uint8_t *videoBuffer = 0;
    

    
void cbVideoPrerender(void *p_video_data, uint8_t **pp_pixel_buffer, int size)
    
{
    
    if (size > videoBufferSize || !videoBuffer)
    
    {
    
        printf("Reallocate raw video buffer %d bytes\n", size);
    
        free(videoBuffer);
    
        videoBuffer = (uint8_t *)malloc(size);
    
        videoBufferSize = size;
    
    }
    

    
    // videoBuffer = (uint8_t *)malloc(size);
    
    *pp_pixel_buffer = videoBuffer;
    
}
    
void cbVideoPostrender(void *p_video_data, uint8_t *p_pixel_buffer, int width, int height, int pixel_pitch, int size, int64_t pts)
    
{
    
    // Unlocking
    
    //CloseHandle(hMutex);
    

    
}
    

    
//static void handleEvent(const libvlc_event_t* pEvt, void* pUserData)
    
//{
    
//    libvlc_time_t time;
    
//    switch (pEvt->type)
    
//    {
    
//    case libvlc_MediaPlayerTimeChanged:
    
//        time = libvlc_media_player_get_time(mp);
    
//        printf("MediaPlayerTimeChanged %lld ms\n", (long long)time);
    
//        break;
    
//    case libvlc_MediaPlayerEndReached:
    
//        printf("MediaPlayerEndReached\n");
    
//        done = 1;
    
//        break;
    
//    default:
    
//        printf("%s\n", libvlc_event_type_name(pEvt->type));
    
//    }
    
//}
    

    
clock_t startTime[8];
    
int framesReceivedThisSecond[8];
    

    
int main()
    
{
    

    

    
    // VLC pointers
    
    libvlc_instance_t *inst;
    
    libvlc_media_t *m;
    
    void *pUserData = 0;
    

    
    VideoDataStruct dataStruct;
    

    
    // VLC options
    
    char smem_options[1000];
    

    
    // RV24
    
    sprintf(smem_options
    
            , "#transcode{vcodec=RV24}:smem{"
    
              "video-prerender-callback=%lld,"
    
              "video-postrender-callback=%lld,"
    
              "video-data=%lld,"
    
              "no-time-sync},"
    
            , (long long int)(intptr_t)(void*)&amp;cbVideoPrerender
    
            , (long long int)(intptr_t)(void*)&amp;cbVideoPostrender
    
            , (long long int)(intptr_t)(void*)&amp;dataStruct
    
            );
    

    
    const char * const vlc_args[] = {
    
        "-I", "dummy",            // Don't use any interface
    
        "--ignore-config",        // Don't use VLC's config
    
        "--extraintf=logger",     // Log anything
    
        "--verbose=4",            // Be verbose
    
        //        "--ffmpeg-hw",
    
        //        "-vvv",
    
        "--ffmpeg-hw",
    
        "--avcodec-hw=any",
    
        "--sout", smem_options    // Stream to memory
    

    
    };
    

    
    // Launch VLC
    
    inst = libvlc_new(sizeof(vlc_args) / sizeof(vlc_args[0]), vlc_args);
    

    
    // Create a new item
    
    m = libvlc_media_new_location(inst, rtspAddress);
    

    

    

    
    // Create a media player playing environement
    
    mp = libvlc_media_player_new_from_media(m);
    

    
    //    libvlc_event_manager_t* eventManager = libvlc_media_player_event_manager(mp);
    
    //    libvlc_event_attach(eventManager, libvlc_MediaPlayerTimeChanged, handleEvent, pUserData);
    
    //    libvlc_event_attach(eventManager, libvlc_MediaPlayerEndReached, handleEvent, pUserData);
    
    //    libvlc_event_attach(eventManager, libvlc_MediaPlayerPositionChanged, handleEvent, pUserData);
    

    
    //libvlc_video_set_format(mp, "RV24", 240, 320, 240 * 3 );
    

    
    // play the media_player
    
    libvlc_media_player_play(mp);
    

    

    
    // Create a window for displaying the video
    
    std::string winName("Demo Video");
    
    cv::namedWindow(winName, cv::WINDOW_AUTOSIZE);
    

    
    cv::Mat frame;
    
    int key = 0;
    

    
    // Endless loop, press Esc to quit
    
    while (key != 27)
    
    {
    

    
        // Check for invalid input
    
        if (videoBuffer)
    
        {
    
            // CV_8UC3 = 8 bits, 3 chanels
    
            frame = cv::Mat(rtspRes, CV_8UC3, videoBuffer);
    
        }
    

    

    
        if (frame.rows == 0 || frame.cols == 0)
    
            continue;
    

    
        int stream_number=0;
    
        framesReceivedThisSecond[stream_number]++;
    
        long    duration = ( std::clock() - startTime[stream_number] );
    
        if(duration>1000)
    
        {
    
            std::cout&lt;&lt;"\n"&lt;&lt;"FPS "&lt;code></ctime></iostream>

    FULL LOG :

    core libvlc debug: Copyright © 1996-2016 the VideoLAN team
    
core libvlc debug: revision 2.2.3-37-g888b7e89
    
core libvlc debug: configured with ../extras/package/win32/../../../configure  '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-twolame' '--enable-quicktime' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-x264' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-dvdread' '--enable-shout' '--enable-goom' '--enable-caca' '--disable-sdl' '--enable-qt' '--enable-skins2' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=i686-w64-mingw32' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=i686-w64-mingw32' 'PKG_CONFIG_PATH=/opt/intel/opencl:' 'PKG_CONFIG_LIBDIR=/home/svlad/DEV/vlc/contrib/i686-w64-mingw32/lib/pkgconfig'
    
core libvlc debug: using multimedia timers as clock source
    
core libvlc debug:  min period: 1 ms, max period: 1000000 ms
    
core libvlc debug: searching plug-in modules
    
core libvlc debug: loading plugins cache file C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins\plugins.dat
    
core libvlc debug: recursively browsing `C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins'
    
core libvlc debug: saving plugins cache C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins\plugins.dat
    
core libvlc debug: plug-ins loaded: 418 modules
    
core libvlc debug: translation test: code is "C"
    
core libvlc debug: CPU has capabilities MMX MMXEXT SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 FPU 
    
core playlist debug: creating audio output
    
core audio output debug: looking for audio output module matching "any": 6 candidates
    
directsound audio output debug: found 2 devices
    
core audio output debug: using audio output module "directsound"
    
core playlist debug: keeping audio output
    
core interface debug: looking for interface module matching "logger,none": 16 candidates
    
logger interface: VLC media player - 2.2.4 Weatherwax
    
logger interface: Copyright © 1996-2016 the VideoLAN team
    
logger interface: 
    
Warning: if you cannot access the GUI anymore, open a command-line window, go to the directory where you installed VLC and run "vlc -I qt"
    
logger interface: using logger.
    
logger interface warning: no log filename provided, using `vlc-log.txt'
    
logger interface debug: opening logfile `vlc-log.txt'
    
core libvlc debug: VLC media player - 2.2.4 Weatherwax
    
core libvlc debug: Copyright © 1996-2016 the VideoLAN team
    
core libvlc debug: revision 2.2.3-37-g888b7e89
    
core libvlc debug: configured with ../extras/package/win32/../../../configure  '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-twolame' '--enable-quicktime' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-x264' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-dvdread' '--enable-shout' '--enable-goom' '--enable-caca' '--disable-sdl' '--enable-qt' '--enable-skins2' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=i686-w64-mingw32' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=i686-w64-mingw32' 'PKG_CONFIG_PATH=/opt/intel/opencl:' 'PKG_CONFIG_LIBDIR=/home/svlad/DEV/vlc/contrib/i686-w64-mingw32/lib/pkgconfig'
    
core interface debug: using interface module "logger"
    
core generic debug: creating audio output
    
core audio output debug: looking for audio output module matching "any": 6 candidates
    
directsound audio output debug: found 2 devices
    
core audio output debug: using audio output module "directsound"
    
core generic debug: keeping audio output
    
core input debug: Creating an input for 'rtsp://192.168.0.245/live_st1'
    
core stream output debug: using sout chain=`transcode{vcodec=RV24}:smem{video-prerender-callback=15667245,video-postrender-callback=15667630,video-data=3471900,no-time-sync},'
    
core stream output debug: stream=`smem'
    
core stream out debug: looking for sout stream module matching "smem": 22 candidates
    
core stream out debug: set config option: sout-smem-video-prerender-callback to 15667245
    
core stream out debug: set config option: sout-smem-video-postrender-callback to 15667630
    
core stream out debug: set config option: sout-smem-video-data to 3471900
    
core stream out debug: set config option: sout-smem-time-sync to (null)
    
core stream out debug: using sout stream module "stream_out_smem"
    
core stream output debug: stream=`transcode'
    
core stream out debug: looking for sout stream module matching "transcode": 22 candidates
    
core stream out debug: set config option: sout-transcode-vcodec to RV24
    
stream_out_transcode stream out debug: Checking video codec mapping for RV24 got RV24 
    
stream_out_transcode stream out debug: codec video=RV24 0x0 scaling: 0.000000 0kb/s
    
core stream out debug: using sout stream module "stream_out_transcode"
    
core input debug: using timeshift granularity of 50 MiB, in path 'C:\Users\BCDVideo\AppData\Local\Temp'
    
core input debug: `rtsp://admin:admin@192.168.0.245/live_st1' gives access `rtsp' demux `' path `admin:admin@192.168.0.245/live_st1'
    
core input debug: specified demux `any'
    
core input debug: creating demux: access='rtsp' demux='any' location='admin:admin@192.168.0.245/live_st1' file='\\admin:admin@192.168.0.245\live_st1'
    
core demux debug: looking for access_demux module matching "rtsp": 12 candidates
    
live555 demux debug: version 2016.01.12
    
live555 demux debug: RTP subsession 'video/H264'
    
core input debug: selecting program id=0
    
live555 demux debug: setup start: 0.000000 stop:0.000000
    
live555 demux debug: We have a timeout of 60 seconds
    
live555 demux debug: spawned timeout thread
    
live555 demux debug: play start: 0.000000 stop:0.000000
    
core demux debug: using access_demux module "live555"
    
core decoder debug: looking for packetizer module matching "any": 23 candidates
    
packetizer_h264 decoder debug: found NAL_SPS (sps_id=0)
    
packetizer_h264 decoder debug: found NAL_PPS (pps_id=0 sps_id=0)
    
core decoder debug: using packetizer module "packetizer_h264"
    
core input debug: starting in sync mode
    
core demux meta debug: looking for meta reader module matching "any": 2 candidates
    
lua demux meta debug: Trying Lua scripts in C:\Users\BCDVideo\AppData\Roaming\vlc\lua\meta\reader
    
lua demux meta debug: Trying Lua scripts in C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\lua\meta\reader
    
core demux meta debug: no meta reader modules matched
    
core input debug: `rtsp://admin:admin@192.168.0.245/live_st1' successfully opened
    
core input debug: switching to async mode
    
core input debug: Buffering 0%
    
core input debug: Buffering 3%
    
core input debug: Buffering 10%
    
core stream output debug: adding a new sout input (sout_input:00c21c50)
    
core input debug: Buffering 13%
    
stream_out_transcode stream out debug: creating video transcoding from fcc=`h264' to fcc=`RV24'
    
core input debug: Buffering 16%
    
core generic debug: looking for decoder module matching "any": 43 candidates
    
core input debug: Buffering 20%
    
core input debug: Buffering 23%
    
avcodec generic debug: CPU flags: 0x0107d3db
    
core input debug: Buffering 30%
    
avcodec generic debug: trying to use direct rendering
    
core input debug: Buffering 33%
    
avcodec generic debug: allowing 4 thread(s) for decoding
    
core input debug: Buffering 36%
    
avcodec generic warning: threaded frame decoding is not compatible with DXVA2, disabled
    
core input debug: Buffering 40%
    
avcodec generic debug: avcodec codec (H264 - MPEG-4 AVC (part 10)) started
    
core input debug: Buffering 43%
    
avcodec generic debug: using slice thread mode with 4 threads
    
core input debug: Buffering 50%
    
core generic debug: using decoder module "avcodec"
    
core input debug: Buffering 53%
    
core encoder debug: looking for encoder module matching "any": 20 candidates
    
core input debug: Buffering 56%
    
core input debug: Buffering 60%
    
avcodec encoder debug: CPU flags: 0x0107d3db
    
core input debug: Buffering 63%
    
avcodec encoder debug: Time base for probing setted to 1/1000000
    
core input debug: Buffering 70%
    
avcodec encoder debug: Time base set to 1/1000000
    
core input debug: Buffering 73%
    
avcodec encoder debug: found encoder Raw video
    
core input debug: Buffering 76%
    
core encoder debug: using encoder module "avcodec"
    
core input debug: Buffering 80%
    
core encoder debug: removing module "avcodec"
    
core input debug: Buffering 83%
    
core input debug: Buffering 90%
    
core input debug: Buffering 93%
    
core input debug: Buffering 96%
    
core input debug: Stream buffering done (1002 ms in 834 ms)
    
core input debug: Decoder wait done in 0 ms
    
avcodec generic debug: available hardware decoder output format 61 (dxva2_vld)
    
avcodec generic debug: available hardware decoder output format 128 (d3d11va_vld)
    
avcodec generic debug: available software decoder output format 12 (yuvj420p)
    
core generic debug: looking for hw decoder module matching "any": 1 candidates
    
core generic debug: no hw decoder modules matched
    
avcodec generic warning: plane 0 not aligned
    
avcodec generic warning: disabling direct rendering
    
stream_out_transcode stream out debug: decoder aspect is 1.761468:1
    
stream_out_transcode stream out debug: source pixel aspect is 0.990826:1
    
stream_out_transcode stream out debug: scaled pixel aspect is 0.990826:1
    
stream_out_transcode stream out debug: source 1920x1080, destination 1920x1080
    
stream_out_transcode stream out debug: source fps 30/1, destination 30/1
    
stream_out_transcode stream out: input interval 33333 (base 1)
    
stream_out_transcode stream out: output interval 33333 (base 1)
    
stream_out_transcode stream out debug: encoder aspect is 1920:1090
    
core filter debug: looking for video filter2 module matching "any": 58 candidates
    
swscale filter debug: 1920x1080 (1920x1090) chroma: J420 -> 1920x1080 (1920x1090) chroma: RV24 with scaling using Bicubic (good quality)
    
core filter debug: using video filter2 module "swscale"
    
core stream out debug: Filter 'Swscale' (0089a2cc) appended to chain
    
stream_out_transcode stream out debug: destination (after video filters) 1920x1090
    
core encoder debug: looking for encoder module matching "any": 20 candidates
    
avcodec encoder debug: CPU flags: 0x0107d3db
    
avcodec encoder debug: Time base for probing setted to 1/30
    
avcodec encoder debug: Time base set to 1/30
    
avcodec encoder debug: found encoder Raw video
    
core encoder debug: using encoder module "avcodec"
    
stream_out_transcode stream out warning: Reseting video sync
    
stream_out_transcode stream out warning: Reseting video sync
    
stream_out_transcode stream out warning: Reseting video sync
    
stream_out_transcode stream out warning: Reseting video sync
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518755, last: 1518769)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518756, last: 1518769)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518757, last: 1518769)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518758, last: 1518769)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518759, last: 1518769)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518760, last: 1518769)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518761, last: 1518769)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518762, last: 1518769)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518763, last: 1518769)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518764, last: 1518769)
    
stream_out_transcode stream out warning: Reseting video sync
    
stream_out_transcode stream out warning: Reseting video sync
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518784, last: 1518795)
    
live555 demux debug: tk->rtpSource->hasBeenSynchronizedUsingRTCP()
    
core input error: ES_OUT_RESET_PCR called
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518785, last: 1518795)
    
core input debug: Buffering 0%
    
core input debug: Buffering 3%
    
core input debug: Buffering 6%
    
core input debug: Buffering 10%
    
core input debug: Buffering 13%
    
core input debug: Buffering 20%
    
core input debug: Buffering 23%
    
core input debug: Buffering 26%
    
core input debug: Buffering 30%
    
core input debug: Buffering 33%
    
core input debug: Buffering 40%
    
core input debug: Buffering 43%
    
core input debug: Buffering 46%
    
core input debug: Buffering 50%
    
core input debug: Buffering 53%
    
core input debug: Buffering 60%
    
core input debug: Buffering 63%
    
core input debug: Buffering 66%
    
core input debug: Buffering 70%
    
core input debug: Buffering 73%
    
core input debug: Buffering 80%
    
core input debug: Buffering 83%
    
core input debug: Buffering 86%
    
core input debug: Buffering 90%
    
core input debug: Buffering 93%
    
core input debug: Stream buffering done (1002 ms in 817 ms)
    
core input debug: Decoder wait done in 0 ms
    
stream_out_transcode stream out warning: Reseting video sync
    
stream_out_transcode stream out warning: Reseting video sync
    
stream_out_transcode stream out warning: Reseting video sync
    
stream_out_transcode stream out warning: Reseting video sync
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518834, last: 1518837)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518835, last: 1518837)
    
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518836, last: 1518837)
    
avcodec encoder warning: almost fed libavcodec with two frames with the same PTS (1518837)
    
stream_out_transcode stream out warning: Reseting video sync
    
stream_out_transcode stream out warning: Reseting video sync

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