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• FFMPEG, "Could not open file.. " "av_interleaved_write_frame() : Input/output error"

  10 juillet 2018, par justaguytrynabuildawebsite

  Trying to run a simple ffmpeg line on my Ubuntu 16.04 vps shell,

  ffmpeg -ss 1 -i /var/www/html/lib/vid/4581989_022810100718.mp4 -r 1 -vframes 1 /var/www/html/lib/thumbnail/4581989_022810100718/20.jpg

  but am met with

  Could not open file 

  and

  av_interleaved_write_frame(): Input/output error

  I have already tried giving the ../lib/vid folder in question 777 permissions but it didnt help.

  Full print-out :

  ffmpeg version 2.8.14-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  
   built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 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
  
  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 '/var/www/html/lib/vid/4581989_022810100718.mp4':
  
  Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2avc1mp41
  
  encoder         : Lavf56.36.100
  
  Duration: 00:00:04.90, start: 0.000000, bitrate: 2595 kb/s
  
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1820x1024 [SAR 1:1 DAR 455:256], 2593 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
  Metadata:
  
    handler_name    : VideoHandler
  
  [swscaler @ 0x1652280] deprecated pixel format used, make sure you did set range correctly
  
  Output #0, image2, to '/var/www/html/lib/thumbnail/4581989_022810100718/20.jpg':
  
  Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2avc1mp41
  
  encoder         : Lavf56.40.101
  
  Stream #0:0(und): Video: mjpeg, yuvj420p(pc), 1820x1024 [SAR 1:1 DAR 455:256], q=2-31, 200 kb/s, 1 fps, 1 tbn, 1 tbc (default)
  
  Metadata:
  
    handler_name    : VideoHandler
  
    encoder         : Lavc56.60.100 mjpeg
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
  
  Press [q] to stop, [?] for help
  
  [image2 @ 0x16103a0] Could not open file : /var/www/html/lib/thumbnail/4581989_022810100718/20.jpg
  
  av_interleaved_write_frame(): Input/output error
  
  frame=    1 fps=0.0 q=3.4 Lsize=N/A time=00:00:01.00 bitrate=N/A    
  
  video:48kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  Conversion failed!

• gstreamer : Internal data error, in appsink "pull-sample" mode

  9 mai 2018, par Amir Raza

  I am getting Internal data error, in appsink .
  My application is to read .yuv data , encode and write to a buffer.

  I have accomplished the writing it file but when i changed the code to write it buffer it giving error.
  Its only able to write only single packet (188bytes).

  Output of program :

   (ConsoleApplication6.exe:14432): GStreamer-WARNING **: Failed to load plugin 'C:\gstreamer\1.0\x86_64\lib\gstreamer-1.0\libgstopenh264.dll': 'C:\gstreamer\1.0\x86_64\lib\gstreamer-1.0\libgstopenh264.dll': The specified procedure could not be found.
  
      pipeline:  filesrc location=Transformers1080p.yuv blocksize=4147200 ! videoparse  width=1920 height=1080 framerate=60/1 ! videoconvert ! video/x-raw,format=I420,width=1920,height=1080,framerate=60/1 !  x264enc ! mpegtsmux ! queue !  appsink name = sink
  
      Now playing: Transformers1080p.yuv
  
      Running...
  
  
  
       on_new_sample_from_sink
  
  
  
       sample got of size = 188
  
      Error: Internal data stream error.
  
      Returned, stopping playback
  
      Deleting pipeline

  my code :

  #define _CRT_SECURE_NO_WARNINGS 1
  
  //#pragma warning(disable:4996)
  
  #include <gst></gst>gst.h>
  
  #include <gst></gst>audio/audio.h>
  
  #include <gst></gst>app/gstappsrc.h>
  
  #include <gst></gst>base/gstpushsrc.h>
  
  #include <gst></gst>app/gstappsink.h>
  
  #include <gst></gst>video/video.h>
  
  #include <gst></gst>video/gstvideometa.h>
  
  #include <gst></gst>video/video-overlay-composition.h>
  
  
  
  #include 
  
  #include 
  
  
  
  #include 
  
  #include 
  
  
  
  using namespace std;
  
  
  
  GstElement *SinkBuff;
  
  char *out_file_path;
  
  FILE *out_file;
  
  
  
  //gst-launch-1.0.exe -v filesrc location=Transformers1080p.yuv blocksize=4147200 !  
  
  //videoconvert ! video/x-raw,format=I420,width=1920,height=1080,framerate=60/1 !  
  
  //openh264enc ! mpegtsmux ! filesink location=final.ts
  
  
  
  
  
  static gboolean bus_call(GstBus     *bus, GstMessage *msg, gpointer    data)
  
  {
  
          GMainLoop *loop = (GMainLoop *)data;
  
  
  
          switch (GST_MESSAGE_TYPE(msg))
  
          {
  
          case GST_MESSAGE_EOS:
  
                  g_print("End of stream\n");
  
                  g_main_loop_quit(loop);
  
                  break;
  
  
  
          case GST_MESSAGE_ERROR:
  
            {
  
                  gchar  *debug;
  
                  GError *error;
  
  
  
                  gst_message_parse_error(msg, &amp;error, &amp;debug);
  
                  g_free(debug);
  
  
  
                  g_printerr("Error: %s\n", error->message);
  
                  g_error_free(error);
  
  
  
                  g_main_loop_quit(loop);
  
                  break;
  
            }
  
          default:
  
                  break;
  
      }
  
          return TRUE;
  
  }
  
  
  
  /* called when the appsink notifies us that there is a new buffer ready for
  
  * processing */
  
  static void  on_new_sample_from_sink(GstElement * elt, void *ptr)
  
  {
  
          guint size;
  
          GstBuffer *app_buffer, *buffer;
  
          GstElement *source;
  
          GstMapInfo map = { 0 };
  
          GstSample *sample;
  
          static GstClockTime timestamp = 0;
  
          printf("\n on_new_sample_from_sink \n ");
  
          /* get the buffer from appsink */
  
          g_signal_emit_by_name(SinkBuff, "pull-sample", &amp;sample, NULL);
  
          if (sample)
  
          {
  
                  buffer = gst_sample_get_buffer(sample);
  
                  gst_buffer_map(buffer, &amp;map, GST_MAP_READ);
  
  
  
                  printf("\n sample got of size = %d \n", map.size);
  
                  //Buffer
  
                  fwrite((char *)map.data, 1, sizeof(map.size), out_file);
  
  
  
                  gst_buffer_unmap(buffer, &amp;map);
  
                  gst_sample_unref(sample);
  
          }
  
  }
  
  
  
  
  
  int main(int   argc, char *argv[])
  
  {
  
          GMainLoop *loop;
  
          int width, height;
  
  
  
          GstElement *pipeline;
  
          GError *error = NULL;
  
          GstBus *bus;
  
          char pipeline_desc[1024];
  
          out_file = fopen("output.ts", "wb");
  
  
  
  
  
          /* Initialisation */
  
          gst_init(&amp;argc, &amp;argv);
  
  
  
          // Create gstreamer loop
  
          loop = g_main_loop_new(NULL, FALSE);
  
  
  
          sprintf(
  
                  pipeline_desc,
  
                  " filesrc location=Transformers1080p.yuv blocksize=4147200 !"
  
                  " videoparse  width=1920 height=1080 framerate=60/1 !"
  
                  " videoconvert ! video/x-raw,format=I420,width=1920,height=1080,framerate=60/1 ! "
  
                  //" x264enc ! mpegtsmux ! filesink location=final.ts");
  
                  " x264enc ! mpegtsmux ! queue !  appsink name = sink");
  
  
  
  
  
          printf("pipeline: %s\n", pipeline_desc);
  
  
  
          /* Create gstreamer elements */
  
          pipeline = gst_parse_launch(pipeline_desc, &amp;error);
  
  
  
          /* TODO: Handle recoverable errors. */
  
  
  
          if (!pipeline) {
  
                  g_printerr("Pipeline could not be created. Exiting.\n");
  
                  return -1;
  
          }
  
  
  
          /* get sink */
  
          SinkBuff = gst_bin_get_by_name(GST_BIN(pipeline), "sink");
  
          g_object_set(G_OBJECT(SinkBuff), "emit-signals", TRUE, "sync", FALSE, NULL);
  
          g_signal_connect(SinkBuff, "new-sample", G_CALLBACK(on_new_sample_from_sink), NULL);
  
  
  
  
  
          /* Set up the pipeline */
  
          /* we add a message handler */
  
          bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline));
  
          gst_bus_add_watch(bus, bus_call, loop);
  
          gst_object_unref(bus);
  
  
  
          /* Set the pipeline to "playing" state*/
  
          g_print("Now playing: Transformers1080p.yuv \n");
  
          gst_element_set_state(pipeline, GST_STATE_PLAYING);
  
  
  
          /* Iterate */
  
          g_print("Running...\n");
  
          g_main_loop_run(loop);
  
  
  
          /* Out of the main loop, clean up nicely */
  
          g_print("Returned, stopping playback\n");
  
          gst_element_set_state(pipeline, GST_STATE_NULL);
  
  
  
          g_print("Deleting pipeline\n");
  
          gst_object_unref(GST_OBJECT(pipeline));
  
          fclose(out_file);
  
          g_main_loop_unref(loop);
  
  
  
  
  
          return 0;
  
  } 

• How can start a process and stop the process if "error" string appear in the console output strings in one line commands set

  25 janvier 2018, par Thm Lee

  Now I want one line cmd commands set which start a process and monitor the consol output strings stream. And so if error message appear in the process’s console output, then could stop the process immediately.

  For example, I tried below commends sets, but failed. It seems find command didn’t get any strings streams in which search key word "error"

  ffmpeg "endcoding process options set" | find "error" && exit

  or,

  ffmpeg "endcoding process options set" 2>&1 find "error" && exit

  Is there any solutions about this ?

  Thanks in advance