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Sur d’autres sites (7521)

  • ffmpeg libx264 non-existing PPS 0 referenced

    18 août 2014, par Damen Salvatore

    hello i have installed ffmpeg and libx264 based in the offical tutorial on ffmpeg installation here :
    https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

    i want to get an stream from mumudvb and pass it to ffmpeg for h264 encoding
    when i use

    ffserver -f /path/to/config -d

    i get this output :

    [h264 @ 0x1ab32c0] non-existing PPS 0 referenced
    
[mpegts @ 0x2c7cca0] Could not find codec parameters for stream 0 (Video: h264 ([27][0][0][0] / 0x001B)): unspecified size
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[h264 @ 0x1ab32c0] non-existing SPS 0 referenced in buffering period
    
[h264 @ 0x1ab32c0] non-existing PPS 0 referenced
    
[h264 @ 0x1ab32c0] decode_slice_header error
    
[h264 @ 0x1ab32c0] no frame!
    
[mpegts @ 0x1aadca0] 
    
decoding for stream 0 failed
    
[mpegts @ 0x1aadca0] decoding for stream 1 failed
    
Input #0, mpegts, from 'http://127.0.0.1:9097':
    
  Duration: N/A, start: 45508.714822, bitrate: N/A
    
  Program 107 
    
[mpegts @ 0x1aadca0]     Stream #0:0[0x42e]: Video: h264 ([27][0][0][0] / 0x001B)[mpegts @ 0x30b0ca0] decoding for stream 1 failed
    
, 50 fpsitech@itech-All-Series:~$ , 50 tbr, 90k tbn, 180k tbc
    
[mpegts @ 0x1cd5ca0]     Stream #0:1Could not find codec parameters for stream 1 (Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp): unspecified sample rate
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[0x42f](per): Audio: aac_latm ([17][0][0][0] / 0x0011), 48000 Hz, stereo, fltp
    
http://127.0.0.1:8888/tv7.ffm: Input/output error
    
Input #0, mpegts, from 'http://127.0.0.1:9093':
    
  Duration: N/A, start: 25560.704144, bitrate: N/A
    
  Program 103 
    
    Stream #0:0[0x406]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg), 720x576 [SAR 16:11 DAR 20:11], 25 fps, 50 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x407](per): Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp
    
    Stream #0:2[0x40b](ara): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    
Received signal 2: terminating.
    
[mpegts @ 0x30b0ca0] Could not find codec parameters for stream 0 (Video: h264 ([27][0][0][0] / 0x001B)): unspecified size
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
http://127.0.0.1:8888/tv3.ffm: Input/output error
    
[mpegts @ 0x1aadca0] Could not find codec parameters for stream 1 (Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp): unspecified sample rate
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, mpegts, from 'http://127.0.0.1:9094':
    
Received signal 2: terminating.
    
Could not find codec parameters for stream 1 (Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp): unspecified sample rate
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
  Duration: N/A, start: 43409.427056, bitrate: N/A
    
  Program 104 
    
    Stream #0:0[0x410]Input #0, mpegts, from 'http://127.0.0.1:9098':
    
: Video: h264 ([27][0][0][0] / 0x001B), 50 fps, 50 tbr, 90k tbn, 180k tbc
    
    Stream #0:1[0x411](per): Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp
    
    Stream #0:2[0x415](ara): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    
http://127.0.0.1:8888/tv4.ffm: Input/output error
    
Received signal 2: terminating.
    
  Duration: N/A, start: 26351.744300, bitrate: N/A
    
  Program 108 
    
    Stream #0:0[0x438]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg), 720x576 [SAR 12:11 DAR 15:11], 25 fps, 50 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x439](per): Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp
    
    Stream #0:2[0x43d](ara): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    
http://127.0.0.1:8888/tv8.ffm: Input/output error
    
Received signal 2: terminating.

    ffmpeg will gime me the output. but the prooblem is that the outputs bitrate is around 2000k to 3000k it should be 512k

    this is my ffserver config :

    Port 8888
    
BindAddress 0.0.0.0
    
MaxHTTPConnections 20000
    
MaxClients 10000
    
MaxBandwidth 1000000
    
CustomLog -
    
<feed>
    
File /tmp/ch1.ffm
    
FileMaxSize 100M
    
ACL allow 127.0.0.1
    
launch ffmpeg -i http://127.0.0.1:9094
    
</feed>
    

    
<stream ch1="ch1">
    
Feed ch1.ffm
    
Format mpegts
    
AudioBitRate 64
    
AudioChannels 2
    
AudioSampleRate 44100
    
#AVOptionAudio flags +global_header
    
VideoBitRate 512
    
VideoBufferSize 400
    
VideoFrameRate 25
    
VideoBitRateTolerance 100
    
VideoSize 720x576
    
VideoGopSize 12
    
AudioCodec aac
    
VideoCodec libx264
    
AVOptionVideo bsf h264_mp4toannexb
    
#AVOptionVideo threads 0
    
AVOptionVideo threads_type frame
    
AVOptionVideo coder 0
    
AVOptionVideo bf 0
    
AVOptionVideo flags +loop
    
AVOptionVideo partitions +parti8x8+parti4x4+partp8x8+partb8x8
    
AVOptionVideo me_method hex
    
AVOptionVideo subq 7
    
AVOptionVideo me_range 16
    
AVOptionVideo g 250
    
AVOptionVideo keyint_min 10
    
AVOptionVideo sc_threshold 40
    
AVOptionVideo i_qfactor 0.71
    
AVOptionVideo b_strategy 1
    
AVOptionVideo qcomp 0.6
    
AVOptionVideo qmin 10
    
AVOptionVideo qmax 51
    
AVOptionVideo qdiff 4
    
AVOptionVideo refs 3
    
AVOptionVideo directpred 1
    
AVOptionVideo trellis 1
    
AVOptionVideo wpredp 0
    
#AVOptionVideo flags +global_header
    

    
StartSendOnKey
    
</stream>

  • ffmpeg libx264 non-existing PPS 0 referenced

    18 août 2014, par k961

    hello i have installed ffmpeg and libx264 based in the offical tutorial on ffmpeg installation here :
    https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

    i want to get an stream from mumudvb and pass it to ffmpeg for h264 encoding
    when i use

    ffserver -f /path/to/config -d

    i get this output :

    [h264 @ 0x1ab32c0] non-existing PPS 0 referenced
    
[mpegts @ 0x2c7cca0] Could not find codec parameters for stream 0 (Video: h264 ([27][0][0][0] / 0x001B)): unspecified size
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[h264 @ 0x1ab32c0] non-existing SPS 0 referenced in buffering period
    
[h264 @ 0x1ab32c0] non-existing PPS 0 referenced
    
[h264 @ 0x1ab32c0] decode_slice_header error
    
[h264 @ 0x1ab32c0] no frame!
    
[mpegts @ 0x1aadca0] 
    
decoding for stream 0 failed
    
[mpegts @ 0x1aadca0] decoding for stream 1 failed
    
Input #0, mpegts, from 'http://127.0.0.1:9097':
    
  Duration: N/A, start: 45508.714822, bitrate: N/A
    
  Program 107 
    
[mpegts @ 0x1aadca0]     Stream #0:0[0x42e]: Video: h264 ([27][0][0][0] / 0x001B)[mpegts @ 0x30b0ca0] decoding for stream 1 failed
    
, 50 fpsitech@itech-All-Series:~$ , 50 tbr, 90k tbn, 180k tbc
    
[mpegts @ 0x1cd5ca0]     Stream #0:1Could not find codec parameters for stream 1 (Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp): unspecified sample rate
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[0x42f](per): Audio: aac_latm ([17][0][0][0] / 0x0011), 48000 Hz, stereo, fltp
    
http://127.0.0.1:8888/tv7.ffm: Input/output error
    
Input #0, mpegts, from 'http://127.0.0.1:9093':
    
  Duration: N/A, start: 25560.704144, bitrate: N/A
    
  Program 103 
    
    Stream #0:0[0x406]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg), 720x576 [SAR 16:11 DAR 20:11], 25 fps, 50 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x407](per): Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp
    
    Stream #0:2[0x40b](ara): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    
Received signal 2: terminating.
    
[mpegts @ 0x30b0ca0] Could not find codec parameters for stream 0 (Video: h264 ([27][0][0][0] / 0x001B)): unspecified size
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
http://127.0.0.1:8888/tv3.ffm: Input/output error
    
[mpegts @ 0x1aadca0] Could not find codec parameters for stream 1 (Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp): unspecified sample rate
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, mpegts, from 'http://127.0.0.1:9094':
    
Received signal 2: terminating.
    
Could not find codec parameters for stream 1 (Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp): unspecified sample rate
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
  Duration: N/A, start: 43409.427056, bitrate: N/A
    
  Program 104 
    
    Stream #0:0[0x410]Input #0, mpegts, from 'http://127.0.0.1:9098':
    
: Video: h264 ([27][0][0][0] / 0x001B), 50 fps, 50 tbr, 90k tbn, 180k tbc
    
    Stream #0:1[0x411](per): Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp
    
    Stream #0:2[0x415](ara): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    
http://127.0.0.1:8888/tv4.ffm: Input/output error
    
Received signal 2: terminating.
    
  Duration: N/A, start: 26351.744300, bitrate: N/A
    
  Program 108 
    
    Stream #0:0[0x438]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg), 720x576 [SAR 12:11 DAR 15:11], 25 fps, 50 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x439](per): Audio: aac_latm ([17][0][0][0] / 0x0011), 0 channels, fltp
    
    Stream #0:2[0x43d](ara): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    
http://127.0.0.1:8888/tv8.ffm: Input/output error
    
Received signal 2: terminating.

    ffmpeg will gime me the output. but the prooblem is that the outputs bitrate is around 2000k to 3000k it should be 512k

    this is my ffserver config :

    Port 8888
    
BindAddress 0.0.0.0
    
MaxHTTPConnections 20000
    
MaxClients 10000
    
MaxBandwidth 1000000
    
CustomLog -
    
<feed>
    
File /tmp/ch1.ffm
    
FileMaxSize 100M
    
ACL allow 127.0.0.1
    
launch ffmpeg -i http://127.0.0.1:9094
    
</feed>
    

    
<stream ch1="ch1">
    
Feed ch1.ffm
    
Format mpegts
    
AudioBitRate 64
    
AudioChannels 2
    
AudioSampleRate 44100
    
#AVOptionAudio flags +global_header
    
VideoBitRate 512
    
VideoBufferSize 400
    
VideoFrameRate 25
    
VideoBitRateTolerance 100
    
VideoSize 720x576
    
VideoGopSize 12
    
AudioCodec aac
    
VideoCodec libx264
    
AVOptionVideo bsf h264_mp4toannexb
    
#AVOptionVideo threads 0
    
AVOptionVideo threads_type frame
    
AVOptionVideo coder 0
    
AVOptionVideo bf 0
    
AVOptionVideo flags +loop
    
AVOptionVideo partitions +parti8x8+parti4x4+partp8x8+partb8x8
    
AVOptionVideo me_method hex
    
AVOptionVideo subq 7
    
AVOptionVideo me_range 16
    
AVOptionVideo g 250
    
AVOptionVideo keyint_min 10
    
AVOptionVideo sc_threshold 40
    
AVOptionVideo i_qfactor 0.71
    
AVOptionVideo b_strategy 1
    
AVOptionVideo qcomp 0.6
    
AVOptionVideo qmin 10
    
AVOptionVideo qmax 51
    
AVOptionVideo qdiff 4
    
AVOptionVideo refs 3
    
AVOptionVideo directpred 1
    
AVOptionVideo trellis 1
    
AVOptionVideo wpredp 0
    
#AVOptionVideo flags +global_header
    

    
StartSendOnKey
    
</stream>

  • Problem : FFmpeg and C++ extract and save frame

    26 mai 2021, par Simba_cl25

    I am doing a project where I must do the following : extract frames (along with the associated metadata - KLV) from a video given a period (for the moment every 10 seconds).&#xA;I have followed codes found on internet but I get an error that I can find a solution to.

    &#xA;

    extern "C" {&#xA;#include <libavcodec></libavcodec>avcodec.h>&#xA;#include <libavformat></libavformat>avformat.h>&#xA;#include <libavdevice></libavdevice>avdevice.h>&#xA;#include <libswscale></libswscale>swscale.h>&#xA;#include <libavfilter></libavfilter>avfilter.h>&#xA;#include <libswresample></libswresample>swresample.h>&#xA;#include <libavutil></libavutil>avutil.h>&#xA;#include <libavutil></libavutil>imgutils.h> &#xA;}&#xA;&#xA;static void SaveFrame(AVFrame *pFrame, int width, int height, int iFrame);&#xA;&#xA;&#xA;int main(int argc, const char * argv[])&#xA;{&#xA;    AVFormatContext *pFormatCtx;&#xA;    int             i, videoStream;&#xA;    AVCodecContext  *pCodecCtx = NULL;&#xA;    const AVCodec         *pCodec = NULL;&#xA;    AVFrame         *pFrame;&#xA;    AVFrame         *pFrameRGB;&#xA;    AVPacket        *packet = av_packet_alloc();&#xA;    AVStream        *pStream;&#xA;    int             numBytes;&#xA;    int64_t         Duration;&#xA;    uint8_t         *buffer;&#xA;    bool frameFinished = false;&#xA;&#xA;    // Open video file - check for errors&#xA;    pFormatCtx = 0;&#xA;    if (avformat_open_input(&amp;pFormatCtx, "00Video\\VideoR.ts", 0, 0) != 0)&#xA;        return -1; &#xA;&#xA;    if (avformat_find_stream_info(pFormatCtx, 0) &lt; 0)&#xA;        return -1;&#xA;&#xA;    if (av_find_best_stream(pFormatCtx, AVMEDIA_TYPE_VIDEO, -1, -1, 0, 0) &lt;0)&#xA;        return -1;&#xA;&#xA;    av_dump_format(pFormatCtx, 0, "00Video\\VideoR.ts", false);&#xA;&#xA;&#xA;    // Find the first video stream&#xA;    videoStream = -1;&#xA;    for (i = 0; i &lt; pFormatCtx->nb_streams; i&#x2B;&#x2B;)&#xA;        if (pFormatCtx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)&#xA;        {&#xA;            videoStream = i;&#xA;            break;&#xA;        }&#xA;    if (videoStream == -1)&#xA;        return -1; &#xA;    &#xA;&#xA;&#xA;    // Find the decoder for the video stream&#xA;    pCodec = avcodec_find_decoder(pFormatCtx->streams[videoStream]->codecpar->codec_id);&#xA;    pCodecCtx = avcodec_alloc_context3(pCodec);&#xA;&#xA;    if (pCodec == NULL)&#xA;    {&#xA;        fprintf(stderr, "Codec not found\n");&#xA;        return -1; &#xA;    }&#xA;&#xA;&#xA;    if (avcodec_open2(pCodecCtx, pCodec, NULL) &lt; 0)&#xA;    {&#xA;        fprintf(stderr, "Could not open codec\n");&#xA;        return -1; &#xA;    }&#xA;&#xA;    // Hack to correct wrong frame rates that seem to be generated by some codecs&#xA;    if (pCodecCtx->time_base.num > 1000 &amp;&amp; pCodecCtx->time_base.den == 1)&#xA;        pCodecCtx->time_base.den = 1000;&#xA;&#xA;&#xA;&#xA;&#xA;    // Allocate video frame - original frame &#xA;    pFrame = av_frame_alloc();&#xA;&#xA;    if (!pFrame) {&#xA;        fprintf(stderr, "Could not allocate video frame\n");&#xA;        return -1;&#xA;    }&#xA;&#xA;&#xA;    // Allocate an AVFrame structure&#xA;    pFrameRGB = av_frame_alloc();&#xA;&#xA;    if (pFrameRGB == NULL)&#xA;    {&#xA;        fprintf(stderr, "Could not allocate video RGB frame\n");&#xA;        return -1;&#xA;    }&#xA;&#xA;    &#xA;    Duration = av_rescale_q(vstrm->duration, vstrm->time_base, { 1,1000 });&#xA;    &#xA;    numBytes = av_image_get_buffer_size(pCodecCtx->pix_fmt, pCodecCtx->width, pCodecCtx->height, 0);&#xA;    buffer = (uint8_t*)av_malloc(numBytes * sizeof(uint8_t));&#xA;&#xA;&#xA;    av_image_fill_arrays(pFrameRGB->data, pFrameRGB->linesize, buffer, AV_PIX_FMT_RGB24, pCodecCtx->width, pCodecCtx->height, 1);&#xA;    &#xA;    &#xA;        &#xA;    &#xA;    i = 0;&#xA;    while (av_read_frame(pFormatCtx, packet) >= 0)&#xA;    {&#xA;        // Is this a packet from the video stream?&#xA;        if (packet->stream_index == videoStream)&#xA;        {&#xA;            int ret;&#xA;            ret = avcodec_send_packet(pCodecCtx, packet);&#xA;            if (ret &lt; 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {&#xA;                fprintf(stderr, "Error sending a packet for decoding\n");&#xA;                //break;&#xA;            }&#xA;            while (ret >= 0) {&#xA;                ret = avcodec_receive_frame(pCodecCtx, pFrame);&#xA;                if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)&#xA;                    return -1;&#xA;                else if (ret &lt; 0) {&#xA;                    fprintf(stderr, "Error during decoding\n");&#xA;                    return -1;&#xA;                 frameFinished = true;&#xA;                }&#xA;&#xA;&#xA;                // Did we get a video frame?&#xA;                if (frameFinished)&#xA;                {&#xA;                    static struct SwsContext *img_convert_ctx;&#xA;&#xA;                    &#xA;                    if (img_convert_ctx == NULL) {&#xA;                        int w = pCodecCtx->width;&#xA;                        int h = pCodecCtx->height;&#xA;                        img_convert_ctx = sws_getContext(w, h,&#xA;                            pCodecCtx->pix_fmt,&#xA;                            w, h, AV_PIX_FMT_RGB24, SWS_FAST_BILINEAR,&#xA;                            NULL, NULL, NULL);&#xA;&#xA;                        if (img_convert_ctx == NULL) {&#xA;                            fprintf(stderr, "Cannot initialize the conversion context!\n");&#xA;                            exit(1);&#xA;                        }&#xA;                    }&#xA;&#xA;                    int ret = sws_scale(img_convert_ctx, pFrame->data, pFrame->linesize, 0,&#xA;                        pCodecCtx->height, pFrameRGB->data, pFrameRGB->linesize);&#xA;&#xA;&#xA;                    // Save the frame to disk&#xA;                    if (i &lt;= Duration)&#xA;                    {&#xA;                        SaveFrame(pFrameRGB, pCodecCtx->width, pCodecCtx->height, i);&#xA;                        i &#x2B;= 10*1000;&#xA;                    }&#xA;                }&#xA;            }&#xA;&#xA;        &#xA;        }&#xA;&#xA;        // Free the packet that was allocated by av_read_frame&#xA;        av_packet_unref(packet);&#xA;    }&#xA;&#xA;    &#xA;&#xA;    // Free the RGB image&#xA;    free(buffer);&#xA;    av_free(pFrameRGB);&#xA;&#xA;    // Free the YUV frame&#xA;    av_free(pFrame);&#xA;&#xA;    // Close the codec&#xA;    avcodec_close(pCodecCtx);&#xA;&#xA;    // Close the video file&#xA;    avformat_close_input(&amp;pFormatCtx);&#xA;    return 0;&#xA;    &#xA;}&#xA;&#xA;&#xA;&#xA;&#xA;static void SaveFrame(AVFrame *pFrame, int width, int height, int iFrame)&#xA;{&#xA;    FILE *pFile;&#xA;    char szFilename[32];&#xA;    int  y;&#xA;&#xA;&#xA;    // Open file&#xA;    sprintf(szFilename, "Im\\frame%d.png", iFrame);&#xA;    pFile = fopen(szFilename, "wb");&#xA;    if (pFile == NULL)&#xA;        return;&#xA;&#xA;    // Write header&#xA;    fprintf(pFile, "P6\n%d %d\n255\n", width, height);&#xA;    // Write pixel data&#xA;    for (y = 0; y &lt; height; y&#x2B;&#x2B;)&#xA;        fwrite(pFrame->data[0] &#x2B; y * pFrame->linesize[0], 1, width*3, pFile);&#xA;&#xA;    // Close file&#xA;    fclose(pFile);&#xA;}&#xA;

    &#xA;

    The error I get is :

    &#xA;

    [swscaler @ 03055A80] bad dst image pointers&#xA;

    &#xA;

    I think is because

    &#xA;

    numBytes = av_image_get_buffer_size(pCodecCtx->pix_fmt, pCodecCtx->width, pCodecCtx->height, 0);&#xA;

    &#xA;

    Returns a negative value ( -22) but I don't know why.

    &#xA;

    Thanks,

    &#xA;

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