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  • c++ - using FFmpeg encode and UDP with a Webcam

    14 mars, par Rendres

    I'm trying to get frames from a Webcam using OpenCV, encode them with FFmpeg and send them using UDP.

    



    I did before a similar project that instead of sending the packets with UDP, it saved them in a video file.

    



    My code is.

    



    #include &#xA;#include &#xA;#include &#xA;#include &#xA;&#xA;extern "C" {&#xA;#include <libavcodec></libavcodec>avcodec.h>&#xA;#include <libavformat></libavformat>avformat.h>&#xA;#include <libavutil></libavutil>opt.h>&#xA;#include <libavutil></libavutil>imgutils.h>&#xA;#include <libavutil></libavutil>mathematics.h>&#xA;#include <libswscale></libswscale>swscale.h>&#xA;#include <libswresample></libswresample>swresample.h>&#xA;}&#xA;&#xA;#include <opencv2></opencv2>opencv.hpp>&#xA;&#xA;using namespace std;&#xA;using namespace cv;&#xA;&#xA;#define WIDTH 640&#xA;#define HEIGHT 480&#xA;#define CODEC_ID AV_CODEC_ID_H264&#xA;#define STREAM_PIX_FMT AV_PIX_FMT_YUV420P&#xA;&#xA;static AVFrame *frame, *pFrameBGR;&#xA;&#xA;int main(int argc, char **argv)&#xA;{&#xA;VideoCapture cap(0);&#xA;const char *url = "udp://127.0.0.1:8080";&#xA;&#xA;AVFormatContext *formatContext;&#xA;AVStream *stream;&#xA;AVCodec *codec;&#xA;AVCodecContext *c;&#xA;AVDictionary *opts = NULL;&#xA;&#xA;int ret, got_packet;&#xA;&#xA;if (!cap.isOpened())&#xA;{&#xA;    return -1;&#xA;}&#xA;&#xA;av_log_set_level(AV_LOG_TRACE);&#xA;&#xA;av_register_all();&#xA;avformat_network_init();&#xA;&#xA;avformat_alloc_output_context2(&amp;formatContext, NULL, "h264", url);&#xA;if (!formatContext)&#xA;{&#xA;    av_log(NULL, AV_LOG_FATAL, "Could not allocate an output context for &#x27;%s&#x27;.\n", url);&#xA;}&#xA;&#xA;codec = avcodec_find_encoder(CODEC_ID);&#xA;if (!codec)&#xA;{&#xA;    av_log(NULL, AV_LOG_ERROR, "Could not find encoder.\n");&#xA;}&#xA;&#xA;stream = avformat_new_stream(formatContext, codec);&#xA;&#xA;c = avcodec_alloc_context3(codec);&#xA;&#xA;stream->id = formatContext->nb_streams - 1;&#xA;stream->time_base = (AVRational){1, 25};&#xA;&#xA;c->codec_id = CODEC_ID;&#xA;c->bit_rate = 400000;&#xA;c->width = WIDTH;&#xA;c->height = HEIGHT;&#xA;c->time_base = stream->time_base;&#xA;c->gop_size = 12;&#xA;c->pix_fmt = STREAM_PIX_FMT;&#xA;&#xA;if (formatContext->flags &amp; AVFMT_GLOBALHEADER)&#xA;    c->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;&#xA;&#xA;av_dict_set(&amp;opts, "preset", "fast", 0);&#xA;&#xA;av_dict_set(&amp;opts, "tune", "zerolatency", 0);&#xA;&#xA;ret = avcodec_open2(c, codec, NULL);&#xA;if (ret &lt; 0)&#xA;{&#xA;    av_log(NULL, AV_LOG_ERROR, "Could not open video codec.\n");&#xA;}&#xA;&#xA;pFrameBGR = av_frame_alloc();&#xA;if (!pFrameBGR)&#xA;{&#xA;    av_log(NULL, AV_LOG_ERROR, "Could not allocate video frame.\n");&#xA;}&#xA;&#xA;frame = av_frame_alloc();&#xA;if (!frame)&#xA;{&#xA;    av_log(NULL, AV_LOG_ERROR, "Could not allocate video frame.\n");&#xA;}&#xA;&#xA;frame->format = c->pix_fmt;&#xA;frame->width = c->width;&#xA;frame->height = c->height;&#xA;&#xA;ret = avcodec_parameters_from_context(stream->codecpar, c);&#xA;if (ret &lt; 0)&#xA;{&#xA;    av_log(NULL, AV_LOG_ERROR, "Could not open video codec.\n");&#xA;}&#xA;&#xA;av_dump_format(formatContext, 0, url, 1);&#xA;&#xA;ret = avformat_write_header(formatContext, NULL);&#xA;if (ret != 0)&#xA;{&#xA;    av_log(NULL, AV_LOG_ERROR, "Failed to connect to &#x27;%s&#x27;.\n", url);&#xA;}&#xA;&#xA;Mat image(Size(HEIGHT, WIDTH), CV_8UC3);&#xA;SwsContext *swsctx = sws_getContext(WIDTH, HEIGHT, AV_PIX_FMT_BGR24, WIDTH, HEIGHT, AV_PIX_FMT_YUV420P, SWS_BILINEAR, NULL, NULL, NULL);&#xA;int frame_pts = 0;&#xA;&#xA;while (1)&#xA;{&#xA;    cap >> image;&#xA;&#xA;    int numBytesYUV = av_image_get_buffer_size(STREAM_PIX_FMT, WIDTH, HEIGHT, 1);&#xA;    uint8_t *bufferYUV = (uint8_t *)av_malloc(numBytesYUV * sizeof(uint8_t));&#xA;&#xA;    avpicture_fill((AVPicture *)pFrameBGR, image.data, AV_PIX_FMT_BGR24, WIDTH, HEIGHT);&#xA;    avpicture_fill((AVPicture *)frame, bufferYUV, STREAM_PIX_FMT, WIDTH, HEIGHT);&#xA;&#xA;    sws_scale(swsctx, (uint8_t const *const *)pFrameBGR->data, pFrameBGR->linesize, 0, HEIGHT, frame->data, frame->linesize);&#xA;&#xA;    AVPacket pkt = {0};&#xA;    av_init_packet(&amp;pkt);&#xA;&#xA;    frame->pts = frame_pts;&#xA;&#xA;    ret = avcodec_encode_video2(c, &amp;pkt, frame, &amp;got_packet);&#xA;    if (ret &lt; 0)&#xA;    {&#xA;        av_log(NULL, AV_LOG_ERROR, "Error encoding frame\n");&#xA;    }&#xA;&#xA;    if (got_packet)&#xA;    {&#xA;        pkt.pts = av_rescale_q_rnd(pkt.pts, c->time_base, stream->time_base, AVRounding(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));&#xA;        pkt.dts = av_rescale_q_rnd(pkt.dts, c->time_base, stream->time_base, AVRounding(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));&#xA;        pkt.duration = av_rescale_q(pkt.duration, c->time_base, stream->time_base);&#xA;        pkt.stream_index = stream->index;&#xA;&#xA;        return av_interleaved_write_frame(formatContext, &amp;pkt);&#xA;&#xA;        cout &lt;&lt; "Seguro que si" &lt;&lt; endl;&#xA;    }&#xA;    frame_pts&#x2B;&#x2B;;&#xA;}&#xA;&#xA;avcodec_free_context(&amp;c);&#xA;av_frame_free(&amp;frame);&#xA;avformat_free_context(formatContext);&#xA;&#xA;return 0;&#xA;}&#xA;

    &#xA;&#xA;

    The code compiles but it returns Segmentation fault in the function av_interleaved_write_frame(). I've tried several implementations or several codecs (in this case I'm using libopenh264, but using mpeg2video returns the same segmentation fault). I tried also with av_write_frame() but it returns the same error.

    &#xA;&#xA;

    As I told before, I only want to grab frames from a webcam connected via USB, encode them to H264 and send the packets through UDP to another PC.

    &#xA;&#xA;

    My console log when I run the executable is.

    &#xA;&#xA;

    [100%] Built target display&#xA;[OpenH264] this = 0x0x244b4f0, Info:CWelsH264SVCEncoder::SetOption():ENCODER_OPTION_TRACE_CALLBACK callback = 0x7f0c302a87c0.&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Info:CWelsH264SVCEncoder::InitEncoder(), openh264 codec version = 5a5c4f1&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Info:iUsageType = 0,iPicWidth= 640;iPicHeight= 480;iTargetBitrate= 400000;iMaxBitrate= 400000;iRCMode= 0;iPaddingFlag= 0;iTemporalLayerNum= 1;iSpatialLayerNum= 1;fFrameRate= 25.000000f;uiIntraPeriod= 12;eSpsPpsIdStrategy = 0;bPrefixNalAddingCtrl = 0;bSimulcastAVC=0;bEnableDenoise= 0;bEnableBackgroundDetection= 1;bEnableSceneChangeDetect = 1;bEnableAdaptiveQuant= 1;bEnableFrameSkip= 0;bEnableLongTermReference= 0;iLtrMarkPeriod= 30, bIsLosslessLink=0;iComplexityMode = 0;iNumRefFrame = 1;iEntropyCodingModeFlag = 0;uiMaxNalSize = 0;iLTRRefNum = 0;iMultipleThreadIdc = 1;iLoopFilterDisableIdc = 0 (offset(alpha/beta): 0,0;iComplexityMode = 0,iMaxQp = 51;iMinQp = 0)&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Info:sSpatialLayers[0]: .iVideoWidth= 640; .iVideoHeight= 480; .fFrameRate= 25.000000f; .iSpatialBitrate= 400000; .iMaxSpatialBitrate= 400000; .sSliceArgument.uiSliceMode= 1; .sSliceArgument.iSliceNum= 0; .sSliceArgument.uiSliceSizeConstraint= 1500;uiProfileIdc = 66;uiLevelIdc = 41&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Warning:SliceArgumentValidationFixedSliceMode(), unsupported setting with Resolution and uiSliceNum combination under RC on! So uiSliceNum is changed to 6!&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Info:Setting MaxSpatialBitrate (400000) the same at SpatialBitrate (400000) will make the    actual bit rate lower than SpatialBitrate&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Warning:bEnableFrameSkip = 0,bitrate can&#x27;t be controlled for RC_QUALITY_MODE,RC_BITRATE_MODE and RC_TIMESTAMP_MODE without enabling skip frame.&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Warning:Change QP Range from(0,51) to (12,42)&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Info:WELS CPU features/capacities (0x4007fe3f) detected:   HTT:      Y, MMX:      Y, MMXEX:    Y, SSE:      Y, SSE2:     Y, SSE3:     Y, SSSE3:    Y, SSE4.1:   Y, SSE4.2:   Y, AVX:      Y, FMA:      Y, X87-FPU:  Y, 3DNOW:    N, 3DNOWEX:  N, ALTIVEC:  N, CMOV:     Y, MOVBE:    Y, AES:      Y, NUMBER OF LOGIC PROCESSORS ON CHIP: 8, CPU CACHE LINE SIZE (BYTES):        64&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Info:WelsInitEncoderExt() exit, overall memory usage: 4542878 bytes&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Info:WelsInitEncoderExt(), pCtx= 0x0x245a400.&#xA;Output #0, h264, to &#x27;udp://192.168.100.39:8080&#x27;:&#xA;Stream #0:0, 0, 1/25: Video: h264 (libopenh264), 1 reference frame, yuv420p, 640x480 (0x0), 0/1, q=2-31, 400 kb/s, 25 tbn&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Debug:RcUpdateIntraComplexity iFrameDqBits = 385808,iQStep= 2016,iIntraCmplx = 777788928&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Debug:[Rc]Layer 0: Frame timestamp = 0, Frame type = 2, encoding_qp = 30, average qp = 30, max qp = 33, min qp = 27, index = 0, iTid = 0, used = 385808, bitsperframe = 16000, target = 64000, remainingbits = -257808, skipbuffersize = 200000&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Debug:WelsEncoderEncodeExt() OutputInfo iLayerNum = 2,iFrameSize = 48252&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Debug:WelsEncoderEncodeExt() OutputInfo iLayerId = 0,iNalType = 0,iNalCount = 2, first Nal Length=18,uiSpatialId = 0,uiTemporalId = 0,iSubSeqId = 0&#xA;[libopenh264 @ 0x244aa00] [OpenH264] this = 0x0x244b4f0, Debug:WelsEncoderEncodeExt() OutputInfo iLayerId = 1,iNalType = 1,iNalCount = 6, first Nal Length=6057,uiSpatialId = 0,uiTemporalId = 0,iSubSeqId = 0&#xA;[libopenh264 @ 0x244aa00] 6 slices&#xA;./scriptBuild.sh: line 20: 10625 Segmentation fault      (core dumped) ./display&#xA;

    &#xA;&#xA;

    As you can see, FFmpeg uses libopenh264 and configures it correctly. However, no matter what. It always returns the same Segmentation fault error...

    &#xA;&#xA;

    I've used commands like this.

    &#xA;&#xA;

    ffmpeg -s 640x480 -f video4linux2 -i /dev/video0 -r 30 -vcodec libopenh264 -an -f h264 udp://127.0.0.1:8080&#xA;

    &#xA;&#xA;

    And it works perfectly, but I need to process the frames before sending them. Thats why I'm trying to use the libs.

    &#xA;&#xA;

    My FFmpeg version is.

    &#xA;&#xA;

    ffmpeg version 3.3.6 Copyright (c) 2000-2017 the FFmpeg developers&#xA;built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)&#xA;configuration: --disable-yasm --enable-shared --enable-libopenh264 --cc=&#x27;gcc -fPIC&#x27;&#xA;libavutil      55. 58.100 / 55. 58.100&#xA;libavcodec     57. 89.100 / 57. 89.100&#xA;libavformat    57. 71.100 / 57. 71.100&#xA;libavdevice    57.  6.100 / 57.  6.100&#xA;libavfilter     6. 82.100 /  6. 82.100&#xA;libswscale      4.  6.100 /  4.  6.100&#xA;libswresample   2.  7.100 /  2.  7.100&#xA;

    &#xA;&#xA;

    I tried to get more information of the error using gbd, but it didn't give me debugging info.

    &#xA;&#xA;

    How can I solve this problem ? I don't know what else can I try...

    &#xA;&#xA;

    Thank you !

    &#xA;

  • how to add audio to existing video using FFMPEG at specific time ?

    29 juin 2023, par Yanshof

    I have video file (.avi) that contain video of 10 minutes. &#xA;I also have audio file (.wav) that contain 1 minute of sound.

    &#xA;&#xA;

    I need to add the audio to the exist video but the audio need to start at after one minute of the video

    &#xA;&#xA;

    How to do it ?

    &#xA;&#xA;

    ( prefer using ffmpeg if its possible )

    &#xA;&#xA;

    try already this query ( 30 seconds delay )

    &#xA;&#xA;

    -i video.avi -i audio.wav -filter_complex \"[1]adelay=30000|30000[aud];[0][aud]amix\" - c:v copy out.avi"&#xA;

    &#xA;&#xA;

    Attached the log of ffmpeg when trying to merge more then one wav :

    &#xA;&#xA;

    ffmpeg started on 2018-01-10 at 11:14:57&#xA;Report written to "ffmpeg-20180110-111457.log"&#xA;Command line:&#xA;ffmpeg.exe -report -i "..\\merged.avi" -i "Storage\\1.wav" -i "Storage\\2.wav" -i "Storage\\3.wav" -filter_complex "adelay=30000|30000" "adelay=91000|91000" "adelay=151000|151000" -c:v copy "Storage\\ALL.AVI"&#xA;ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers&#xA;  built with gcc 7.2.0 (GCC)&#xA;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx&#xA;  libavutil      55. 78.100 / 55. 78.100&#xA;  libavcodec     57.107.100 / 57.107.100&#xA;  libavformat    57. 83.100 / 57. 83.100&#xA;  libavdevice    57. 10.100 / 57. 10.100&#xA;  libavfilter     6.107.100 /  6.107.100&#xA;  libswscale      4.  8.100 /  4.  8.100&#xA;  libswresample   2.  9.100 /  2.  9.100&#xA;  libpostproc    54.  7.100 / 54.  7.100&#xA;Splitting the commandline.&#xA;Reading option &#x27;-report&#x27; ... matched as option &#x27;report&#x27; (generate a report) with argument &#x27;1&#x27;.&#xA;Reading option &#x27;-i&#x27; ... matched as input url with argument &#x27;..\mergedVideoOnly.avi&#x27;.&#xA;Reading option &#x27;-i&#x27; ... matched as input url with argument &#x27;\Storage\0030_0130.wav&#x27;.&#xA;Reading option &#x27;-i&#x27; ... matched as input url with argument &#x27;\Storage\0130_0230.wav&#x27;.&#xA;Reading option &#x27;-i&#x27; ... matched as input url with argument &#x27;\Storage\0230_0330.wav&#x27;.&#xA;Reading option &#x27;-filter_complex&#x27; ... matched as option &#x27;filter_complex&#x27; (create a complex filtergraph) with argument &#x27;adelay=30000|30000&#x27;.&#xA;Reading option &#x27;adelay=91000|91000&#x27; ... matched as output url.&#xA;Reading option &#x27;adelay=151000|151000&#x27; ... matched as output url.&#xA;Reading option &#x27;-c:v&#x27; ... matched as option &#x27;c&#x27; (codec name) with argument &#x27;copy&#x27;.&#xA;Reading option &#x27;ALL.AVI&#x27; ... matched as output url.&#xA;Finished splitting the commandline.&#xA;Parsing a group of options: global .&#xA;Applying option report (generate a report) with argument 1.&#xA;Applying option filter_complex (create a complex filtergraph) with argument adelay=30000|30000.&#xA;Successfully parsed a group of options.&#xA;Parsing a group of options: input url ..\mergedVideoOnly.avi.&#xA;Successfully parsed a group of options.&#xA;Opening an input file: ..\mergedVideoOnly.avi.&#xA;[NULL @ 042ed360] Opening &#x27;..\mergedVideoOnly.avi&#x27; for reading&#xA;[file @ 042ee300] Setting default whitelist &#x27;file,crypto&#x27;&#xA;[avi @ 042ed360] Format avi probed with size=2048 and score=100&#xA;[avi @ 042ee500] use odml:1&#xA;[avi @ 042ed360] Before avformat_find_stream_info() pos: 5690 bytes read:100744 seeks:4 nb_streams:1&#xA;[avi @ 042ed360] parser not found for codec scpr, packets or times may be invalid.&#xA;[avi @ 042ed360] parser not found for codec scpr, packets or times may be invalid.&#xA;[avi @ 042ed360] max_analyze_duration 5000000 reached at 5000000 microseconds st:0&#xA;[avi @ 042ed360] rfps: 2.916667 0.012539&#xA;[avi @ 042ed360] rfps: 2.916667 0.012539&#xA;[avi @ 042ed360] rfps: 3.000000 0.000000&#xA;[avi @ 042ed360] rfps: 3.083333 0.012539&#xA;[avi @ 042ed360] rfps: 3.083333 0.012539&#xA;[avi @ 042ed360] rfps: 5.916667 0.012539&#xA;[avi @ 042ed360] rfps: 5.916667 0.012539&#xA;[avi @ 042ed360] rfps: 6.000000 0.000000&#xA;[avi @ 042ed360] rfps: 6.000000 0.000000&#xA;[avi @ 042ed360] rfps: 6.083333 0.012539&#xA;[avi @ 042ed360] rfps: 6.083333 0.012539&#xA;[avi @ 042ed360] rfps: 8.916667 0.012539&#xA;[avi @ 042ed360] rfps: 8.916667 0.012539&#xA;[avi @ 042ed360] rfps: 9.000000 0.000000&#xA;[avi @ 042ed360] rfps: 9.083333 0.012539&#xA;[avi @ 042ed360] rfps: 9.083333 0.012539&#xA;[avi @ 042ed360] rfps: 11.916667 0.012539&#xA;[avi @ 042ed360] rfps: 11.916667 0.012539&#xA;[avi @ 042ed360] rfps: 12.000000 0.000000&#xA;[avi @ 042ed360] rfps: 12.000000 0.000000&#xA;[avi @ 042ed360] rfps: 12.083333 0.012539&#xA;[avi @ 042ed360] rfps: 12.083333 0.012539&#xA;[avi @ 042ed360] rfps: 14.916667 0.012539&#xA;[avi @ 042ed360] rfps: 14.916667 0.012539&#xA;[avi @ 042ed360] rfps: 15.000000 0.000000&#xA;[avi @ 042ed360] rfps: 15.083333 0.012539&#xA;[avi @ 042ed360] rfps: 15.083333 0.012539&#xA;[avi @ 042ed360] rfps: 17.916667 0.012539&#xA;[avi @ 042ed360] rfps: 17.916667 0.012539&#xA;[avi @ 042ed360] rfps: 18.000000 0.000000&#xA;[avi @ 042ed360] rfps: 18.000000 -0.000000&#xA;[avi @ 042ed360] rfps: 18.083333 0.012539&#xA;[avi @ 042ed360] rfps: 18.083333 0.012539&#xA;[avi @ 042ed360] rfps: 20.916667 0.012539&#xA;[avi @ 042ed360] rfps: 20.916667 0.012539&#xA;[avi @ 042ed360] rfps: 21.000000 0.000000&#xA;[avi @ 042ed360] rfps: 21.083333 0.012539&#xA;[avi @ 042ed360] rfps: 21.083333 0.012539&#xA;[avi @ 042ed360] rfps: 23.916667 0.012539&#xA;[avi @ 042ed360] rfps: 23.916667 0.012539&#xA;[avi @ 042ed360] rfps: 24.000000 0.000000&#xA;[avi @ 042ed360] rfps: 24.000000 -0.000000&#xA;[avi @ 042ed360] rfps: 24.083333 0.012539&#xA;[avi @ 042ed360] rfps: 24.083333 0.012539&#xA;[avi @ 042ed360] rfps: 26.916667 0.012539&#xA;[avi @ 042ed360] rfps: 26.916667 0.012539&#xA;[avi @ 042ed360] rfps: 27.000000 0.000000&#xA;[avi @ 042ed360] rfps: 27.083333 0.012539&#xA;[avi @ 042ed360] rfps: 27.083333 0.012539&#xA;[avi @ 042ed360] rfps: 29.916667 0.012539&#xA;[avi @ 042ed360] rfps: 29.916667 0.012539&#xA;[avi @ 042ed360] rfps: 30.000000 0.000000&#xA;[avi @ 042ed360] rfps: 30.000000 -0.000000&#xA;[avi @ 042ed360] rfps: 33.000000 0.000000&#xA;[avi @ 042ed360] rfps: 36.000000 0.000000&#xA;[avi @ 042ed360] rfps: 36.000000 -0.000000&#xA;[avi @ 042ed360] rfps: 39.000000 0.000000&#xA;[avi @ 042ed360] rfps: 42.000000 0.000000&#xA;[avi @ 042ed360] rfps: 42.000000 0.000000&#xA;[avi @ 042ed360] rfps: 45.000000 0.000000&#xA;[avi @ 042ed360] rfps: 48.000000 0.000000&#xA;[avi @ 042ed360] rfps: 48.000000 0.000000&#xA;[avi @ 042ed360] rfps: 51.000000 0.000000&#xA;[avi @ 042ed360] rfps: 54.000000 0.000000&#xA;[avi @ 042ed360] rfps: 54.000000 -0.000000&#xA;[avi @ 042ed360] rfps: 57.000000 0.000000&#xA;[avi @ 042ed360] rfps: 60.000000 0.000000&#xA;[avi @ 042ed360] rfps: 60.000000 0.000000&#xA;[avi @ 042ed360] rfps: 120.000000 0.000000&#xA;[avi @ 042ed360] rfps: 120.000000 -0.000000&#xA;[avi @ 042ed360] rfps: 240.000000 0.000000&#xA;[avi @ 042ed360] rfps: 240.000000 -0.000000&#xA;[avi @ 042ed360] rfps: 23.976024 0.001038&#xA;[avi @ 042ed360] rfps: 23.976024 0.001038&#xA;[avi @ 042ed360] rfps: 29.970030 0.001622&#xA;[avi @ 042ed360] rfps: 29.970030 0.001622&#xA;[avi @ 042ed360] rfps: 59.940060 0.006487&#xA;[avi @ 042ed360] rfps: 59.940060 0.006487&#xA;[avi @ 042ed360] rfps: 11.988012 0.000259&#xA;[avi @ 042ed360] rfps: 11.988012 0.000259&#xA;[avi @ 042ed360] rfps: 14.985015 0.000405&#xA;[avi @ 042ed360] rfps: 14.985015 0.000405&#xA;[avi @ 042ed360] rfps: 47.952048 0.004152&#xA;[avi @ 042ed360] rfps: 47.952048 0.004152&#xA;[avi @ 042ed360] After avformat_find_stream_info() pos: 105829 bytes read:175139 seeks:4 frames:15&#xA;Input #0, avi, from &#x27;..\mergedVideoOnly.avi&#x27;:&#xA;  Metadata:&#xA;    encoder         : Lavf57.83.100&#xA;  Duration: 00:00:25.33, start: 0.000000, bitrate: 113 kb/s&#xA;    Stream #0:0, 15, 1/3: Video: scpr (SCPR / 0x52504353), rgb0, 1920x1200, 112 kb/s, 3 fps, 3 tbr, 3 tbn, 3 tbc&#xA;Successfully opened the file.&#xA;Parsing a group of options: input url " "\Storage\0030_0130.wav.&#xA;Successfully parsed a group of options.&#xA;Opening an input file: " "\Storage\1.wav.&#xA;[NULL @ 03be0180] Opening &#x27;" "\Storage\1.wav&#x27; for reading&#xA;[file @ 03be0820] Setting default whitelist &#x27;file,crypto&#x27;&#xA;[wav @ 03be0180] Format wav probed with size=2048 and score=99&#xA;[wav @ 03be0180] Before avformat_find_stream_info() pos: 44 bytes read:65580 seeks:1 nb_streams:1&#xA;[wav @ 03be0180] probing stream 0 pp:32&#xA;[wav @ 03be0180] probing stream 0 pp:31&#xA;[wav @ 03be0180] probing stream 0 pp:30&#xA;[wav @ 03be0180] probing stream 0 pp:29&#xA;[wav @ 03be0180] probing stream 0 pp:28&#xA;[wav @ 03be0180] probing stream 0 pp:27&#xA;[wav @ 03be0180] probing stream 0 pp:26&#xA;[wav @ 03be0180] probing stream 0 pp:25&#xA;[wav @ 03be0180] probing stream 0 pp:24&#xA;[wav @ 03be0180] probing stream 0 pp:23&#xA;[wav @ 03be0180] probing stream 0 pp:22&#xA;[wav @ 03be0180] probing stream 0 pp:21&#xA;[wav @ 03be0180] probing stream 0 pp:20&#xA;[wav @ 03be0180] probing stream 0 pp:19&#xA;[wav @ 03be0180] probing stream 0 pp:18&#xA;[wav @ 03be0180] probing stream 0 pp:17&#xA;[wav @ 03be0180] probing stream 0 pp:16&#xA;[wav @ 03be0180] probing stream 0 pp:15&#xA;[wav @ 03be0180] probing stream 0 pp:14&#xA;[wav @ 03be0180] probing stream 0 pp:13&#xA;[wav @ 03be0180] probing stream 0 pp:12&#xA;[wav @ 03be0180] probing stream 0 pp:11&#xA;[wav @ 03be0180] probing stream 0 pp:10&#xA;[wav @ 03be0180] probing stream 0 pp:9&#xA;[wav @ 03be0180] probing stream 0 pp:8&#xA;[wav @ 03be0180] probing stream 0 pp:7&#xA;[wav @ 03be0180] probing stream 0 pp:6&#xA;[wav @ 03be0180] probing stream 0 pp:5&#xA;[wav @ 03be0180] probing stream 0 pp:4&#xA;[wav @ 03be0180] probing stream 0 pp:3&#xA;[wav @ 03be0180] probing stream 0 pp:2&#xA;[wav @ 03be0180] probing stream 0 pp:1&#xA;[wav @ 03be0180] probed stream 0&#xA;[wav @ 03be0180] parser not found for codec pcm_s16le, packets or times may be invalid.&#xA;[wav @ 03be0180] max_analyze_duration 5000000 reached at 5120000 microseconds st:0&#xA;[wav @ 03be0180] After avformat_find_stream_info() pos: 131116 bytes read:196652 seeks:1 frames:22&#xA;Guessed Channel Layout for Input Stream #1.0 : mono&#xA;Input #1, wav, from &#x27;" "\Storage\0030_0130.wav&#x27;:&#xA;  Duration: 00:00:56.80, bitrate: 128 kb/s&#xA;    Stream #1:0, 22, 1/8000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s&#xA;Successfully opened the file.&#xA;Parsing a group of options: input url " "\Storage\2.wav.&#xA;Successfully parsed a group of options.&#xA;Opening an input file: " "\Storage\2.wav.&#xA;[NULL @ 03bed760] Opening &#x27;" "\Storage\2.wav&#x27; for reading&#xA;[file @ 03bb3100] Setting default whitelist &#x27;file,crypto&#x27;&#xA;[wav @ 03bed760] Format wav probed with size=2048 and score=99&#xA;[wav @ 03bed760] Before avformat_find_stream_info() pos: 44 bytes read:65580 seeks:1 nb_streams:1&#xA;[wav @ 03bed760] probing stream 0 pp:32&#xA;[wav @ 03bed760] probing stream 0 pp:31&#xA;[wav @ 03bed760] probing stream 0 pp:30&#xA;[wav @ 03bed760] probing stream 0 pp:29&#xA;[wav @ 03bed760] probing stream 0 pp:28&#xA;[wav @ 03bed760] probing stream 0 pp:27&#xA;[wav @ 03bed760] probing stream 0 pp:26&#xA;[wav @ 03bed760] probing stream 0 pp:25&#xA;[wav @ 03bed760] probing stream 0 pp:24&#xA;[wav @ 03bed760] probing stream 0 pp:23&#xA;[wav @ 03bed760] probing stream 0 pp:22&#xA;[wav @ 03bed760] probing stream 0 pp:21&#xA;[wav @ 03bed760] probing stream 0 pp:20&#xA;[wav @ 03bed760] probing stream 0 pp:19&#xA;[wav @ 03bed760] probing stream 0 pp:18&#xA;[wav @ 03bed760] probing stream 0 pp:17&#xA;[wav @ 03bed760] probing stream 0 pp:16&#xA;[wav @ 03bed760] probing stream 0 pp:15&#xA;[wav @ 03bed760] probing stream 0 pp:14&#xA;[wav @ 03bed760] probing stream 0 pp:13&#xA;[wav @ 03bed760] probing stream 0 pp:12&#xA;[wav @ 03bed760] probing stream 0 pp:11&#xA;[wav @ 03bed760] probing stream 0 pp:10&#xA;[wav @ 03bed760] probing stream 0 pp:9&#xA;[wav @ 03bed760] probing stream 0 pp:8&#xA;[wav @ 03bed760] probing stream 0 pp:7&#xA;[wav @ 03bed760] probing stream 0 pp:6&#xA;[wav @ 03bed760] probing stream 0 pp:5&#xA;[wav @ 03bed760] probing stream 0 pp:4&#xA;[wav @ 03bed760] probing stream 0 pp:3&#xA;[wav @ 03bed760] probing stream 0 pp:2&#xA;[wav @ 03bed760] probing stream 0 pp:1&#xA;[wav @ 03bed760] probed stream 0&#xA;[wav @ 03bed760] parser not found for codec pcm_s16le, packets or times may be invalid.&#xA;[wav @ 03bed760] max_analyze_duration 5000000 reached at 5120000 microseconds st:0&#xA;[wav @ 03bed760] After avformat_find_stream_info() pos: 131116 bytes read:196652 seeks:1 frames:22&#xA;Guessed Channel Layout for Input Stream #2.0 : mono&#xA;Input #2, wav, from &#x27;" "\Storage\0130_0230.wav&#x27;:&#xA;  Duration: 00:00:59.81, bitrate: 128 kb/s&#xA;    Stream #2:0, 22, 1/8000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s&#xA;Successfully opened the file.&#xA;Parsing a group of options: input url " "\Storage\3.wav.&#xA;Successfully parsed a group of options.&#xA;Opening an input file: " "\Storage\3.wav.&#xA;[NULL @ 03bfeea0] Opening &#x27;" "\Storage\3.wav&#x27; for reading&#xA;[file @ 03bfe8e0] Setting default whitelist &#x27;file,crypto&#x27;&#xA;[wav @ 03bfeea0] Format wav probed with size=2048 and score=99&#xA;[wav @ 03bfeea0] Before avformat_find_stream_info() pos: 44 bytes read:65580 seeks:1 nb_streams:1&#xA;[wav @ 03bfeea0] probing stream 0 pp:32&#xA;[wav @ 03bfeea0] probing stream 0 pp:31&#xA;[wav @ 03bfeea0] probing stream 0 pp:30&#xA;[wav @ 03bfeea0] probing stream 0 pp:29&#xA;[wav @ 03bfeea0] probing stream 0 pp:28&#xA;[wav @ 03bfeea0] probing stream 0 pp:27&#xA;[wav @ 03bfeea0] probing stream 0 pp:26&#xA;[wav @ 03bfeea0] probing stream 0 pp:25&#xA;[wav @ 03bfeea0] probing stream 0 pp:24&#xA;[wav @ 03bfeea0] probing stream 0 pp:23&#xA;[wav @ 03bfeea0] probing stream 0 pp:22&#xA;[wav @ 03bfeea0] probing stream 0 pp:21&#xA;[wav @ 03bfeea0] probing stream 0 pp:20&#xA;[wav @ 03bfeea0] probing stream 0 pp:19&#xA;[wav @ 03bfeea0] probing stream 0 pp:18&#xA;[wav @ 03bfeea0] probing stream 0 pp:17&#xA;[wav @ 03bfeea0] probing stream 0 pp:16&#xA;[wav @ 03bfeea0] probing stream 0 pp:15&#xA;[wav @ 03bfeea0] probing stream 0 pp:14&#xA;[wav @ 03bfeea0] probing stream 0 pp:13&#xA;[wav @ 03bfeea0] probing stream 0 pp:12&#xA;[wav @ 03bfeea0] probing stream 0 pp:11&#xA;[wav @ 03bfeea0] probing stream 0 pp:10&#xA;[wav @ 03bfeea0] probing stream 0 pp:9&#xA;[wav @ 03bfeea0] probing stream 0 pp:8&#xA;[wav @ 03bfeea0] probing stream 0 pp:7&#xA;[wav @ 03bfeea0] probing stream 0 pp:6&#xA;[wav @ 03bfeea0] probing stream 0 pp:5&#xA;[wav @ 03bfeea0] probing stream 0 pp:4&#xA;[wav @ 03bfeea0] probing stream 0 pp:3&#xA;[wav @ 03bfeea0] probing stream 0 pp:2&#xA;[wav @ 03bfeea0] probing stream 0 pp:1&#xA;[wav @ 03bfeea0] probed stream 0&#xA;[wav @ 03bfeea0] parser not found for codec pcm_s16le, packets or times may be invalid.&#xA;[wav @ 03bfeea0] max_analyze_duration 5000000 reached at 5120000 microseconds st:0&#xA;[wav @ 03bfeea0] After avformat_find_stream_info() pos: 131116 bytes read:196652 seeks:1 frames:22&#xA;Guessed Channel Layout for Input Stream #3.0 : mono&#xA;Input #3, wav, from &#x27;" "\Storage\0230_0330.wav&#x27;:&#xA;  Duration: 00:00:59.81, bitrate: 128 kb/s&#xA;    Stream #3:0, 22, 1/8000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s&#xA;Successfully opened the file.&#xA;detected 4 logical cores&#xA;[Parsed_adelay_0 @ 03c0c460] Setting &#x27;delays&#x27; to value &#x27;30000|30000&#x27;&#xA;Parsing a group of options: output url adelay=91000|91000.&#xA;Successfully parsed a group of options.&#xA;Opening an output file: adelay=91000|91000.&#xA;[NULL @ 03c17640] Unable to find a suitable output format for &#x27;adelay=91000|91000&#x27;&#xA;adelay=91000|91000: Invalid argument&#xA;[AVIOContext @ 042ee400] Statistics: 175139 bytes read, 4 seeks&#xA;[AVIOContext @ 03be0900] Statistics: 196652 bytes read, 1 seeks&#xA;[AVIOContext @ 03bca7e0] Statistics: 196652 bytes read, 1 seeks&#xA;[AVIOContext @ 03bfe9a0] Statistics: 196652 bytes read, 1 seeks&#xA;

    &#xA;

  • how to add audio to exist video using FFMPEG at specific time ?

    10 janvier 2018, par Yanshof

    I have video file (.avi) that contain video of 10 minutes.
    I also have audio file (.wav) that contain 1 minute of sound.

    I need to add the audio to the exist video but the audio need to start at after one minute of the video

    How to do it ?

    ( prefer using ffmpeg if its possible )

    try already this query ( 30 seconds deley )

    -i video.avi -i audio.wav -filter_complex \"[1]adelay=30000|30000[aud] ;[0][aud]amix\" - c:v copy out.avi"

    attached the log of ffmpeg when trying to marge more then one wav

    ffmpeg started on 2018-01-10 at 11:14:57
    Report written to "ffmpeg-20180110-111457.log"
    Command line:
    ffmpeg.exe -report -i "..\\merged.avi" -i "Storage\\1.wav" -i "Storage\\2.wav" -i "Storage\\3.wav" -filter_complex "adelay=30000|30000" "adelay=91000|91000" "adelay=151000|151000" -c:v copy "Storage\\ALL.AVI"
    ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers
     built with gcc 7.2.0 (GCC)
     configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
     libavutil      55. 78.100 / 55. 78.100
     libavcodec     57.107.100 / 57.107.100
     libavformat    57. 83.100 / 57. 83.100
     libavdevice    57. 10.100 / 57. 10.100
     libavfilter     6.107.100 /  6.107.100
     libswscale      4.  8.100 /  4.  8.100
     libswresample   2.  9.100 /  2.  9.100
     libpostproc    54.  7.100 / 54.  7.100
    Splitting the commandline.
    Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
    Reading option '-i' ... matched as input url with argument '..\mergedVideoOnly.avi'.
    Reading option '-i' ... matched as input url with argument '\Storage\0030_0130.wav'.
    Reading option '-i' ... matched as input url with argument '\Storage\0130_0230.wav'.
    Reading option '-i' ... matched as input url with argument '\Storage\0230_0330.wav'.
    Reading option '-filter_complex' ... matched as option 'filter_complex' (create a complex filtergraph) with argument 'adelay=30000|30000'.
    Reading option 'adelay=91000|91000' ... matched as output url.
    Reading option 'adelay=151000|151000' ... matched as output url.
    Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'copy'.
    Reading option 'ALL.AVI' ... matched as output url.
    Finished splitting the commandline.
    Parsing a group of options: global .
    Applying option report (generate a report) with argument 1.
    Applying option filter_complex (create a complex filtergraph) with argument adelay=30000|30000.
    Successfully parsed a group of options.
    Parsing a group of options: input url ..\mergedVideoOnly.avi.
    Successfully parsed a group of options.
    Opening an input file: ..\mergedVideoOnly.avi.
    [NULL @ 042ed360] Opening '..\mergedVideoOnly.avi' for reading
    [file @ 042ee300] Setting default whitelist 'file,crypto'
    [avi @ 042ed360] Format avi probed with size=2048 and score=100
    [avi @ 042ee500] use odml:1
    [avi @ 042ed360] Before avformat_find_stream_info() pos: 5690 bytes read:100744 seeks:4 nb_streams:1
    [avi @ 042ed360] parser not found for codec scpr, packets or times may be invalid.
    [avi @ 042ed360] parser not found for codec scpr, packets or times may be invalid.
    [avi @ 042ed360] max_analyze_duration 5000000 reached at 5000000 microseconds st:0
    [avi @ 042ed360] rfps: 2.916667 0.012539
    [avi @ 042ed360] rfps: 2.916667 0.012539
    [avi @ 042ed360] rfps: 3.000000 0.000000
    [avi @ 042ed360] rfps: 3.083333 0.012539
    [avi @ 042ed360] rfps: 3.083333 0.012539
    [avi @ 042ed360] rfps: 5.916667 0.012539
    [avi @ 042ed360] rfps: 5.916667 0.012539
    [avi @ 042ed360] rfps: 6.000000 0.000000
    [avi @ 042ed360] rfps: 6.000000 0.000000
    [avi @ 042ed360] rfps: 6.083333 0.012539
    [avi @ 042ed360] rfps: 6.083333 0.012539
    [avi @ 042ed360] rfps: 8.916667 0.012539
    [avi @ 042ed360] rfps: 8.916667 0.012539
    [avi @ 042ed360] rfps: 9.000000 0.000000
    [avi @ 042ed360] rfps: 9.083333 0.012539
    [avi @ 042ed360] rfps: 9.083333 0.012539
    [avi @ 042ed360] rfps: 11.916667 0.012539
    [avi @ 042ed360] rfps: 11.916667 0.012539
    [avi @ 042ed360] rfps: 12.000000 0.000000
    [avi @ 042ed360] rfps: 12.000000 0.000000
    [avi @ 042ed360] rfps: 12.083333 0.012539
    [avi @ 042ed360] rfps: 12.083333 0.012539
    [avi @ 042ed360] rfps: 14.916667 0.012539
    [avi @ 042ed360] rfps: 14.916667 0.012539
    [avi @ 042ed360] rfps: 15.000000 0.000000
    [avi @ 042ed360] rfps: 15.083333 0.012539
    [avi @ 042ed360] rfps: 15.083333 0.012539
    [avi @ 042ed360] rfps: 17.916667 0.012539
    [avi @ 042ed360] rfps: 17.916667 0.012539
    [avi @ 042ed360] rfps: 18.000000 0.000000
    [avi @ 042ed360] rfps: 18.000000 -0.000000
    [avi @ 042ed360] rfps: 18.083333 0.012539
    [avi @ 042ed360] rfps: 18.083333 0.012539
    [avi @ 042ed360] rfps: 20.916667 0.012539
    [avi @ 042ed360] rfps: 20.916667 0.012539
    [avi @ 042ed360] rfps: 21.000000 0.000000
    [avi @ 042ed360] rfps: 21.083333 0.012539
    [avi @ 042ed360] rfps: 21.083333 0.012539
    [avi @ 042ed360] rfps: 23.916667 0.012539
    [avi @ 042ed360] rfps: 23.916667 0.012539
    [avi @ 042ed360] rfps: 24.000000 0.000000
    [avi @ 042ed360] rfps: 24.000000 -0.000000
    [avi @ 042ed360] rfps: 24.083333 0.012539
    [avi @ 042ed360] rfps: 24.083333 0.012539
    [avi @ 042ed360] rfps: 26.916667 0.012539
    [avi @ 042ed360] rfps: 26.916667 0.012539
    [avi @ 042ed360] rfps: 27.000000 0.000000
    [avi @ 042ed360] rfps: 27.083333 0.012539
    [avi @ 042ed360] rfps: 27.083333 0.012539
    [avi @ 042ed360] rfps: 29.916667 0.012539
    [avi @ 042ed360] rfps: 29.916667 0.012539
    [avi @ 042ed360] rfps: 30.000000 0.000000
    [avi @ 042ed360] rfps: 30.000000 -0.000000
    [avi @ 042ed360] rfps: 33.000000 0.000000
    [avi @ 042ed360] rfps: 36.000000 0.000000
    [avi @ 042ed360] rfps: 36.000000 -0.000000
    [avi @ 042ed360] rfps: 39.000000 0.000000
    [avi @ 042ed360] rfps: 42.000000 0.000000
    [avi @ 042ed360] rfps: 42.000000 0.000000
    [avi @ 042ed360] rfps: 45.000000 0.000000
    [avi @ 042ed360] rfps: 48.000000 0.000000
    [avi @ 042ed360] rfps: 48.000000 0.000000
    [avi @ 042ed360] rfps: 51.000000 0.000000
    [avi @ 042ed360] rfps: 54.000000 0.000000
    [avi @ 042ed360] rfps: 54.000000 -0.000000
    [avi @ 042ed360] rfps: 57.000000 0.000000
    [avi @ 042ed360] rfps: 60.000000 0.000000
    [avi @ 042ed360] rfps: 60.000000 0.000000
    [avi @ 042ed360] rfps: 120.000000 0.000000
    [avi @ 042ed360] rfps: 120.000000 -0.000000
    [avi @ 042ed360] rfps: 240.000000 0.000000
    [avi @ 042ed360] rfps: 240.000000 -0.000000
    [avi @ 042ed360] rfps: 23.976024 0.001038
    [avi @ 042ed360] rfps: 23.976024 0.001038
    [avi @ 042ed360] rfps: 29.970030 0.001622
    [avi @ 042ed360] rfps: 29.970030 0.001622
    [avi @ 042ed360] rfps: 59.940060 0.006487
    [avi @ 042ed360] rfps: 59.940060 0.006487
    [avi @ 042ed360] rfps: 11.988012 0.000259
    [avi @ 042ed360] rfps: 11.988012 0.000259
    [avi @ 042ed360] rfps: 14.985015 0.000405
    [avi @ 042ed360] rfps: 14.985015 0.000405
    [avi @ 042ed360] rfps: 47.952048 0.004152
    [avi @ 042ed360] rfps: 47.952048 0.004152
    [avi @ 042ed360] After avformat_find_stream_info() pos: 105829 bytes read:175139 seeks:4 frames:15
    Input #0, avi, from '..\mergedVideoOnly.avi':
     Metadata:
    encoder         : Lavf57.83.100
     Duration: 00:00:25.33, start: 0.000000, bitrate: 113 kb/s
    Stream #0:0, 15, 1/3: Video: scpr (SCPR / 0x52504353), rgb0, 1920x1200, 112 kb/s, 3 fps, 3 tbr, 3 tbn, 3 tbc
    Successfully opened the file.
    Parsing a group of options: input url " "\Storage\0030_0130.wav.
    Successfully parsed a group of options.
    Opening an input file: " "\Storage\1.wav.
    [NULL @ 03be0180] Opening '" "\Storage\1.wav' for reading
    [file @ 03be0820] Setting default whitelist 'file,crypto'
    [wav @ 03be0180] Format wav probed with size=2048 and score=99
    [wav @ 03be0180] Before avformat_find_stream_info() pos: 44 bytes read:65580 seeks:1 nb_streams:1
    [wav @ 03be0180] probing stream 0 pp:32
    [wav @ 03be0180] probing stream 0 pp:31
    [wav @ 03be0180] probing stream 0 pp:30
    [wav @ 03be0180] probing stream 0 pp:29
    [wav @ 03be0180] probing stream 0 pp:28
    [wav @ 03be0180] probing stream 0 pp:27
    [wav @ 03be0180] probing stream 0 pp:26
    [wav @ 03be0180] probing stream 0 pp:25
    [wav @ 03be0180] probing stream 0 pp:24
    [wav @ 03be0180] probing stream 0 pp:23
    [wav @ 03be0180] probing stream 0 pp:22
    [wav @ 03be0180] probing stream 0 pp:21
    [wav @ 03be0180] probing stream 0 pp:20
    [wav @ 03be0180] probing stream 0 pp:19
    [wav @ 03be0180] probing stream 0 pp:18
    [wav @ 03be0180] probing stream 0 pp:17
    [wav @ 03be0180] probing stream 0 pp:16
    [wav @ 03be0180] probing stream 0 pp:15
    [wav @ 03be0180] probing stream 0 pp:14
    [wav @ 03be0180] probing stream 0 pp:13
    [wav @ 03be0180] probing stream 0 pp:12
    [wav @ 03be0180] probing stream 0 pp:11
    [wav @ 03be0180] probing stream 0 pp:10
    [wav @ 03be0180] probing stream 0 pp:9
    [wav @ 03be0180] probing stream 0 pp:8
    [wav @ 03be0180] probing stream 0 pp:7
    [wav @ 03be0180] probing stream 0 pp:6
    [wav @ 03be0180] probing stream 0 pp:5
    [wav @ 03be0180] probing stream 0 pp:4
    [wav @ 03be0180] probing stream 0 pp:3
    [wav @ 03be0180] probing stream 0 pp:2
    [wav @ 03be0180] probing stream 0 pp:1
    [wav @ 03be0180] probed stream 0
    [wav @ 03be0180] parser not found for codec pcm_s16le, packets or times may be invalid.
    [wav @ 03be0180] max_analyze_duration 5000000 reached at 5120000 microseconds st:0
    [wav @ 03be0180] After avformat_find_stream_info() pos: 131116 bytes read:196652 seeks:1 frames:22
    Guessed Channel Layout for Input Stream #1.0 : mono
    Input #1, wav, from '" "\Storage\0030_0130.wav':
     Duration: 00:00:56.80, bitrate: 128 kb/s
    Stream #1:0, 22, 1/8000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
    Successfully opened the file.
    Parsing a group of options: input url " "\Storage\2.wav.
    Successfully parsed a group of options.
    Opening an input file: " "\Storage\2.wav.
    [NULL @ 03bed760] Opening '" "\Storage\2.wav' for reading
    [file @ 03bb3100] Setting default whitelist 'file,crypto'
    [wav @ 03bed760] Format wav probed with size=2048 and score=99
    [wav @ 03bed760] Before avformat_find_stream_info() pos: 44 bytes read:65580 seeks:1 nb_streams:1
    [wav @ 03bed760] probing stream 0 pp:32
    [wav @ 03bed760] probing stream 0 pp:31
    [wav @ 03bed760] probing stream 0 pp:30
    [wav @ 03bed760] probing stream 0 pp:29
    [wav @ 03bed760] probing stream 0 pp:28
    [wav @ 03bed760] probing stream 0 pp:27
    [wav @ 03bed760] probing stream 0 pp:26
    [wav @ 03bed760] probing stream 0 pp:25
    [wav @ 03bed760] probing stream 0 pp:24
    [wav @ 03bed760] probing stream 0 pp:23
    [wav @ 03bed760] probing stream 0 pp:22
    [wav @ 03bed760] probing stream 0 pp:21
    [wav @ 03bed760] probing stream 0 pp:20
    [wav @ 03bed760] probing stream 0 pp:19
    [wav @ 03bed760] probing stream 0 pp:18
    [wav @ 03bed760] probing stream 0 pp:17
    [wav @ 03bed760] probing stream 0 pp:16
    [wav @ 03bed760] probing stream 0 pp:15
    [wav @ 03bed760] probing stream 0 pp:14
    [wav @ 03bed760] probing stream 0 pp:13
    [wav @ 03bed760] probing stream 0 pp:12
    [wav @ 03bed760] probing stream 0 pp:11
    [wav @ 03bed760] probing stream 0 pp:10
    [wav @ 03bed760] probing stream 0 pp:9
    [wav @ 03bed760] probing stream 0 pp:8
    [wav @ 03bed760] probing stream 0 pp:7
    [wav @ 03bed760] probing stream 0 pp:6
    [wav @ 03bed760] probing stream 0 pp:5
    [wav @ 03bed760] probing stream 0 pp:4
    [wav @ 03bed760] probing stream 0 pp:3
    [wav @ 03bed760] probing stream 0 pp:2
    [wav @ 03bed760] probing stream 0 pp:1
    [wav @ 03bed760] probed stream 0
    [wav @ 03bed760] parser not found for codec pcm_s16le, packets or times may be invalid.
    [wav @ 03bed760] max_analyze_duration 5000000 reached at 5120000 microseconds st:0
    [wav @ 03bed760] After avformat_find_stream_info() pos: 131116 bytes read:196652 seeks:1 frames:22
    Guessed Channel Layout for Input Stream #2.0 : mono
    Input #2, wav, from '" "\Storage\0130_0230.wav':
     Duration: 00:00:59.81, bitrate: 128 kb/s
    Stream #2:0, 22, 1/8000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
    Successfully opened the file.
    Parsing a group of options: input url " "\Storage\3.wav.
    Successfully parsed a group of options.
    Opening an input file: " "\Storage\3.wav.
    [NULL @ 03bfeea0] Opening '" "\Storage\3.wav' for reading
    [file @ 03bfe8e0] Setting default whitelist 'file,crypto'
    [wav @ 03bfeea0] Format wav probed with size=2048 and score=99
    [wav @ 03bfeea0] Before avformat_find_stream_info() pos: 44 bytes read:65580 seeks:1 nb_streams:1
    [wav @ 03bfeea0] probing stream 0 pp:32
    [wav @ 03bfeea0] probing stream 0 pp:31
    [wav @ 03bfeea0] probing stream 0 pp:30
    [wav @ 03bfeea0] probing stream 0 pp:29
    [wav @ 03bfeea0] probing stream 0 pp:28
    [wav @ 03bfeea0] probing stream 0 pp:27
    [wav @ 03bfeea0] probing stream 0 pp:26
    [wav @ 03bfeea0] probing stream 0 pp:25
    [wav @ 03bfeea0] probing stream 0 pp:24
    [wav @ 03bfeea0] probing stream 0 pp:23
    [wav @ 03bfeea0] probing stream 0 pp:22
    [wav @ 03bfeea0] probing stream 0 pp:21
    [wav @ 03bfeea0] probing stream 0 pp:20
    [wav @ 03bfeea0] probing stream 0 pp:19
    [wav @ 03bfeea0] probing stream 0 pp:18
    [wav @ 03bfeea0] probing stream 0 pp:17
    [wav @ 03bfeea0] probing stream 0 pp:16
    [wav @ 03bfeea0] probing stream 0 pp:15
    [wav @ 03bfeea0] probing stream 0 pp:14
    [wav @ 03bfeea0] probing stream 0 pp:13
    [wav @ 03bfeea0] probing stream 0 pp:12
    [wav @ 03bfeea0] probing stream 0 pp:11
    [wav @ 03bfeea0] probing stream 0 pp:10
    [wav @ 03bfeea0] probing stream 0 pp:9
    [wav @ 03bfeea0] probing stream 0 pp:8
    [wav @ 03bfeea0] probing stream 0 pp:7
    [wav @ 03bfeea0] probing stream 0 pp:6
    [wav @ 03bfeea0] probing stream 0 pp:5
    [wav @ 03bfeea0] probing stream 0 pp:4
    [wav @ 03bfeea0] probing stream 0 pp:3
    [wav @ 03bfeea0] probing stream 0 pp:2
    [wav @ 03bfeea0] probing stream 0 pp:1
    [wav @ 03bfeea0] probed stream 0
    [wav @ 03bfeea0] parser not found for codec pcm_s16le, packets or times may be invalid.
    [wav @ 03bfeea0] max_analyze_duration 5000000 reached at 5120000 microseconds st:0
    [wav @ 03bfeea0] After avformat_find_stream_info() pos: 131116 bytes read:196652 seeks:1 frames:22
    Guessed Channel Layout for Input Stream #3.0 : mono
    Input #3, wav, from '" "\Storage\0230_0330.wav':
     Duration: 00:00:59.81, bitrate: 128 kb/s
    Stream #3:0, 22, 1/8000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 128 kb/s
    Successfully opened the file.
    detected 4 logical cores
    [Parsed_adelay_0 @ 03c0c460] Setting 'delays' to value '30000|30000'
    Parsing a group of options: output url adelay=91000|91000.
    Successfully parsed a group of options.
    Opening an output file: adelay=91000|91000.
    [NULL @ 03c17640] Unable to find a suitable output format for 'adelay=91000|91000'
    adelay=91000|91000: Invalid argument
    [AVIOContext @ 042ee400] Statistics: 175139 bytes read, 4 seeks
    [AVIOContext @ 03be0900] Statistics: 196652 bytes read, 1 seeks
    [AVIOContext @ 03bca7e0] Statistics: 196652 bytes read, 1 seeks
    [AVIOContext @ 03bfe9a0] Statistics: 196652 bytes read, 1 seeks