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  • ffmpeg failed to call avcodec_send_packet

    23 juin 2017, par Gizak

    Windows 10 x64,
    ffmpeg : 3.1, prebuilt dlls

    Absolute beginner here.

    I was trying out a very basic case to decode frames from a video file but desperately failed at every attempts. The final code snippet looks like this :

    #define __STDC_CONSTANT_MACROS
    
extern "C" {
    
#include<libavutil></libavutil>avutil.h>
    
#include<libavutil></libavutil>imgutils.h>
    
#include <libavformat></libavformat>avformat.h>
    
#include <libavcodec></libavcodec>avcodec.h>
    
#include <libswscale></libswscale>swscale.h>
    
}
    

    
#include <iostream>
    

    

    
int main(int argc, char **argv) {
    
    AVFormatContext* ctx_format = nullptr;
    
    AVCodecContext* ctx_codec = nullptr;
    
    AVCodec* codec = nullptr;
    
    AVFrame* frame = av_frame_alloc();
    
    int stream_idx;
    
    SwsContext* ctx_sws = nullptr;
    
    const char* fin = argv[1];
    
    AVStream *vid_stream = nullptr;
    
    AVPacket* pkt = av_packet_alloc();
    

    
    av_register_all();
    

    
    if (int ret = avformat_open_input(&amp;ctx_format, fin, nullptr, nullptr) != 0) {
    
        std::cout &lt;&lt; 1 &lt;&lt; std::endl;
    
        return ret;
    
    }
    
    if (avformat_find_stream_info(ctx_format, nullptr) &lt; 0) {
    
        std::cout &lt;&lt; 2 &lt;&lt; std::endl;
    
        return -1; // Couldn't find stream information
    
    }
    
    av_dump_format(ctx_format, 0, fin, false);
    

    
    for (int i = 0; i &lt; ctx_format->nb_streams; i++)
    
        if (ctx_format->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
    
            stream_idx = i;
    
            vid_stream = ctx_format->streams[i];
    
            break;
    
    }
    
    if (vid_stream == nullptr) {
    
        std::cout &lt;&lt; 4 &lt;&lt; std::endl;
    
        return -1;
    
    }
    

    
    codec = avcodec_find_decoder(vid_stream->codecpar->codec_id);
    
    if (!codec) {
    
        fprintf(stderr, "codec not found\n");
    
        exit(1);
    
    }
    
    ctx_codec = avcodec_alloc_context3(codec);
    

    
    if(avcodec_parameters_to_context(ctx_codec, vid_stream->codecpar)&lt;0)
    
        std::cout &lt;&lt; 512;
    
    if (avcodec_open2(ctx_codec, codec, nullptr)&lt;0) {
    
        std::cout &lt;&lt; 5;
    
        return -1;
    
    }
    

    
    //av_new_packet(pkt, pic_size);
    

    
    while(av_read_frame(ctx_format, pkt) >= 0){
    
        int ret = avcodec_send_packet(ctx_codec, pkt);
    
        if (ret &lt; 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
    
            std::cout &lt;&lt; "avcodec_send_packet: " &lt;&lt; ret &lt;&lt; std::endl;
    
            break;
    
        }
    
        if (pkt->stream_index == stream_idx) {
    
            while (ret  >= 0) {
    
                ret = avcodec_receive_frame(ctx_codec, frame);
    
                if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
    
                    //std::cout &lt;&lt; "avcodec_receive_frame: " &lt;&lt; ret &lt;&lt; std::endl;
    
                    break;
    
                }
    
                std::cout &lt;&lt; "frame: " &lt;&lt; ctx_codec->frame_number &lt;&lt; std::endl;
    
            }
    
        }
    
        av_packet_unref(pkt);
    
    }
    

    
    avformat_close_input(&amp;ctx_format);
    
    av_packet_unref(pkt);
    
    avcodec_free_context(&amp;ctx_codec);
    
    avformat_free_context(ctx_format);
    
    return 0;
    
}
    
</iostream>

    It basically leaves everything by its defaults and try to read packets and decode frames from them. The avcodec_send_packet always returned a negative value at the first or second round of calling in the while loop.

    Output for flv :

    > .\streamer_test.exe .\SampleVideo_360x240_5mb.flv
    
Input #0, flv, from '.\SampleVideo_360x240_5mb.flv':
    
  Metadata:
    
    encoder         : Lavf53.24.2
    
  Duration: 00:00:53.32, start: 0.000000, bitrate: 787 kb/s
    
    Stream #0:0: Audio: aac (LC), 48000 Hz, 5.1, fltp, 384 kb/s
    
    Stream #0:1: Video: flv1, yuv420p, 320x240, 500 kb/s, 1k fps, 25 tbr, 1k tbn
    
frame: 1
    
[flv @ 000001545edb66c0] Bad picture start code
    
[flv @ 000001545edb66c0] header damaged
    
avcodec_send_packet: -1094995529

    Output for mp4 :

    > .\streamer_test.exe .\SampleVideo_360x240_10mb.mp4
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\SampleVideo_360x240_10mb.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01T00:00:00.000000Z
    
    encoder         : Lavf53.24.2
    
  Duration: 00:02:05.95, start: 0.000000, bitrate: 669 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 282 kb/s, 15 fps, 15 t
    
br, 15360 tbn, 30 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01T00:00:00.000000Z
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 383 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01T00:00:00.000000Z
    
      handler_name    : SoundHandler
    
[h264 @ 000002e2446a6cc0] Invalid NAL unit size (17191968 > 1007).
    
[h264 @ 000002e2446a6cc0] Error splitting the input into NAL units.
    
avcodec_send_packet: -1094995529

    Output for mkv :

    > .\streamer_test.exe .\SampleVideo_1280x720_2mb.mkv
    
Input #0, matroska,webm, from '.\SampleVideo_1280x720_2mb.mkv':
    
  Metadata:
    
    ENCODER         : Lavf53.24.2
    
  Duration: 00:00:10.65, bitrate: 1575 kb/s
    
    Stream #0:0: Video: mpeg4 (Simple Profile), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn, 25 tbc (de
    
fault)
    
    Stream #0:1: Audio: aac (LC), 48000 Hz, 5.1, fltp (default)
    
frame: 1
    
[mpeg4 @ 000001166798ede0] header damaged
    
avcodec_send_packet: -1

    So I guess there must be something wrong around avcodec_send_packet call but could not figured out what is missing. Any ideas about the causes ? Much appreciate your help !

  • Could not find codec parameters for stream 0

    14 avril 2017, par khinester

    When I run this command :

    ffmpeg -y -i ./in.mp4 -c:v png -f image2pipe -thread_queue_size 1024 -r 25 -t 186.75 -i - -filter_complex overlay=0:0 -c:v libx264 -pix_fmt yuv420p -movflags +faststart ./out.mp4 &lt; ./out.png

    I get an error :

    (git)-[master] 
    
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
    
  WARNING: library configuration mismatch
    
  avcodec     configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv --enable-version3 --disable-doc --disable-programs --disable-avdevice --disable-avfilter --disable-avformat --disable-avresample --disable-postproc --disable-swscale --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libvo_aacenc --enable-libvo_amrwbenc
    
  libavutil      54. 31.100 / 54. 31.100
    
  libavcodec     56. 60.100 / 56. 60.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 40.101 /  5. 40.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './in.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf52.99.1
    
  Duration: 00:03:06.75, start: 0.000000, bitrate: 538 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 480x320 [SAR 1:1 DAR 3:2], 465 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 67 kb/s (default)
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
[image2pipe @ 0x15f7200] Could not find codec parameters for stream 0 (Video: png, none(pc)): unspecified size
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
pipe:: could not find codec parameters
    
Input #1, image2pipe, from 'pipe:':
    
  Duration: N/A, bitrate: N/A
    
    Stream #1:0: Video: png, none(pc), 25 tbr, 25 tbn, 25 tbc
    
[buffer @ 0x15e2620] Unable to parse option value "0x0" as image size
    
[buffer @ 0x15e2620] Unable to parse option value "-1" as pixel format
    
[buffer @ 0x15e2620] Unable to parse option value "0x0" as image size
    
[buffer @ 0x15e2620] Error setting option video_size to value 0x0.
    
[graph 0 input from stream 1:0 @ 0x15e23e0] Error applying options to the filter.
    
Error configuring complex filters.
    
Invalid argument
    

    
Consider increasing the value for the 'analyzeduration' and 'probesize' options pipe:0: could not find codec parameters

    What am I missing in my setup ?

  • Add watermark to video using ffmpeg in php not working

    13 juillet 2017, par Remya

    I need to watermark a mp4 video , Currently i am using this code, but it is not working , please solve this

    &lt;?php $msg = exec('/usr/local/bin/ffmpeg -i uploads/videos/profile/movie.mp4 -vf "movie=logo.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]" uploads/videos/profile/output.mp4 2>&amp;1', $output); var_dump($output);?>

    The error shows

    array (size=27)  0 => string 'FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers' (length=72)  1 => string '  built on Jan 14 2016 22:33:21 with gcc 4.4.7 20120313 (Red Hat 4.4.7-16)' (length=74)  2 => string '  configuration: --enable-libmp3lame --enable-libvorbis --disable-mmx --enable-shared --enable-libx264 --enable-libtheora --enable-libfaac --enable-avfilter --enable-gpl --enable-nonfree --enable-x11grab --enable-libxvid' (length=220)  3 => string '  libavutil     50.36. 0 / 50.36. 0' (length=35)  4 => string ' libavcore      0.16. 1 /  0.16. 1' (length=35)  5 => string '  libavcodec    52.108. 0 / 52.108. 0' (length=37)  6 => string '  libavformat   52.93. 0 / 52.93. 0' (length=35)  7 => string '  libavdevice   52. 2. 3 / 52. 2. 3' (length=35)  8 => string '  libavfilter    1.74. 0 /  1.74. 0' (length=35)  9 => string '  libswscale     0.12. 0 /  0.12. 0' (length=35)  10 => string 'Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'uploads/videos/profile/movie.mp4':' (length=75)  11 => string '  Metadata:' (length=11)  12 => string '   major_brand     : isom' (length=26)  13 => string '    minor_version   : 512' (length=25)  14 => string '    compatible_brands: isomiso2avc1mp41' (length=39)  15 => string '    creation_time   : 1970-01-01 00:00:00' (length=41)  16 => tring '    encoder         : Lavf53.24.2' (length=33)  17 => string '  Duration: 00:00:05.31, start: 0.000000, bitrate: 1589 kb/s' (length=60)  18 => string '    Stream #0.0(und): Video: h264, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 1205 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc' (length=117)  19 => string '    Metadata:' (length=13)  20 => string '      creation_time   : 1970-01-01 00:00:00' (length=43)  21 => string '    Stream #0.1(und): Audio: aac, 48000 Hz, 5.1, s16, 384 kb/s' (length=62)  22 => string '    Metadata:' (length=13)  23 => string '      creation_time   : 1970-01-01 00:00:00' (length=43)  24 => string '[buffer @ 0x1e95f70] w:1280 h:720 pixfmt:yuv420p' (length=48)  25 => string 'No such filter: 'movie'' (length=23)  26 => string 'Error opening filters!' (length=22)

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