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• FFmpeg RTP example error

  20 juillet 2016, par Johnnylin

  Can anyone show me an example code of how to use FFmpeg to encode a ".mp4" video and then output to network stream using RTP(rtp ://127.0.0.1:6666). I have searched for it on google but most of them are just command line. Thanks very much.

  UPDATED :

              extern "C"{
  
              #include <libavcodec></libavcodec>avcodec.h>
  
              #include <libavformat></libavformat>avformat.h>
  
              #include <libswscale></libswscale>swscale.h>
  
              #include <libavutil></libavutil>avutil.h>
  
              #include <libavutil></libavutil>opt.h>
  
              #include <libavutil></libavutil>time.h>
  
  
  
              }
  
              #include 
  
              #include <iostream>
  
              #include <string>
  
              using namespace std;
  
  
  
              // compatibility with newer API
  
              #if LIBAVCODEC_VERSION_INT &lt; AV_VERSION_INT(55,28,1)
  
              #define av_frame_alloc avcodec_alloc_frame
  
              #define av_frame_free avcodec_free_frame
  
              #endif
  
              #define RNDTO2(X) ( ( (X) &amp; 0xFFFFFFFE ))
  
              #define RNDTO32(X) ( ( (X) % 32 ) ? ( ( (X) + 32 ) &amp; 0xFFFFFFE0 ) : (X) )
  
  
  
              //avcodec_alloc_frame is an old name
  
  
  
  
  
              int main(int argc, char *argv[]) {
  
                  // Initalizing these to NULL prevents segfaults!
  
                  AVFormatContext   *pFormatCtx = NULL;
  
                  int               i, videoStream;
  
                  AVCodecContext    *pCodecCtxOrig = NULL;
  
                  AVCodecContext    *pCodecCtx = NULL;
  
                  AVCodec           *pCodec = NULL;
  
                  AVFrame           *pFrame = NULL;
  
                  AVPacket          packet;
  
                  int               frameFinished;
  
                  int               numBytes;
  
                  struct SwsContext *sws_ctx = NULL;
  
                  int frame_index=0;
  
  
  
                  if(argc &lt; 2) {
  
                  printf("Please provide a movie file\n");
  
                  return -1;
  
                  }
  
  
  
                  // Register all formats and codecs
  
                  av_register_all();
  
  
  
                  //initialize network video
  
                  avformat_network_init();
  
  
  
  
  
                  int errorStatus = 0;
  
                  char errorLog[128] = { 0 };
  
                  av_log_set_level(AV_LOG_TRACE);
  
  
  
  
  
                  //------------------ This is for local video file --------------
  
                  // Open video file
  
                  if(avformat_open_input(&amp;pFormatCtx, argv[1], NULL, NULL)!=0)
  
                  return -1; // Couldn't open file
  
  
  
                  // Retrieve stream information
  
                  if(avformat_find_stream_info(pFormatCtx, NULL)&lt;0)
  
                  return -1; // Couldn't find stream information
  
  
  
                  // Find the first video stream
  
                  videoStream=-1;
  
                  for(i=0; inb_streams; i++)
  
                  if(pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
  
                    videoStream=i;
  
                    break;
  
                  }
  
  
  
                  // Dump information about file onto standard error
  
                  av_dump_format(pFormatCtx, 0, argv[1], 0);
  
  
  
  
  
                  if(videoStream==-1)
  
                      return -1; // Didn't find a video stream
  
  
  
                  // Get a pointer to the codec context for the video stream
  
                  pCodecCtxOrig=pFormatCtx->streams[videoStream]->codec;
  
                  // Find the decoder for the video stream
  
                  pCodec=avcodec_find_decoder(pCodecCtxOrig->codec_id);
  
                  if(pCodec==NULL) {
  
                  fprintf(stderr, "Unsupported codec!\n");
  
                  return -1; // Codec not found
  
                  }
  
  
  
                  // Copy context
  
                  pCodecCtx = avcodec_alloc_context3(pCodec);
  
                  if(avcodec_copy_context(pCodecCtx, pCodecCtxOrig) != 0) {
  
                  fprintf(stderr, "Couldn't copy codec context");
  
                  return -1; // Error copying codec context
  
                  }
  
  
  
                  // Open codec
  
                  if(avcodec_open2(pCodecCtx, pCodec, NULL)&lt;0)
  
                      return -1; // Could not open codec
  
  
  
                  // Allocate video frame
  
                  pFrame=av_frame_alloc();
  
  
  
  
  
                  // use nvidia codec
  
                  AVCodec* en_codec = avcodec_find_encoder_by_name("nvenc");
  
                  //AVCodec* en_codec = avcodec_find_encoder(AV_CODEC_ID_H264);
  
                  AVCodecContext* nv_codec_context = avcodec_alloc_context3(en_codec);
  
  
  
                  nv_codec_context->bit_rate = 1244179;
  
                  nv_codec_context->width = 1920;                               
  
                  nv_codec_context->height = 1080;
  
                  nv_codec_context->time_base.num = 1;                                
  
                  nv_codec_context->time_base.den = 30;                              
  
                  nv_codec_context->gop_size = 10;                                     
  
                  nv_codec_context->max_b_frames = 1;                                  
  
                  nv_codec_context->keyint_min = 1;                                     
  
                  nv_codec_context->i_quant_factor = (float)0.71;                      
  
                  nv_codec_context->b_frame_strategy = 20;                            
  
                  nv_codec_context->qcompress = (float)0.6;                              
  
                  nv_codec_context->qmin = 20;                                      
  
                  nv_codec_context->qmax = 51;                                        
  
                  nv_codec_context->max_qdiff = 4;                                      
  
                  nv_codec_context->refs = 4;                                         
  
                  nv_codec_context->trellis = 1;                                        
  
                  nv_codec_context->pix_fmt = AV_PIX_FMT_YUV420P;                      
  
                  //nv_codec_context->codec_id = AV_CODEC_ID_H264;
  
                  //nv_codec_context->codec_type = AVMEDIA_TYPE_VIDEO;
  
  
  
                  if (avcodec_open2(nv_codec_context, en_codec,NULL) &lt; 0) {
  
                      fprintf(stderr, "Could not open codec\n");
  
                      exit(1);
  
                  }else printf("\nH264 codec opened\n");
  
  
  
  
  
                  /******stream*******/
  
  
  
                  string m_output("rtp://147.8.179.229:6666");
  
                  AVFormatContext* m_formatContext = NULL;
  
                  AVStream* m_stream = NULL;
  
                  if (avformat_alloc_output_context2(&amp;m_formatContext, NULL, "H264", m_output.c_str()) &lt; 0) {
  
                         cerr &lt;&lt; "Cannot allocate output context: "
  
                              &lt;&lt; av_make_error_string(errorLog, 128, errorStatus) &lt;&lt; endl;
  
                         return -1;
  
                  }
  
  
  
                  //AVCodec* tmp_codec = avcodec_find_encoder(AV_CODEC_ID_H264);
  
                  m_stream = avformat_new_stream(m_formatContext, en_codec);
  
                    if (!m_stream) {
  
                        cerr &lt;&lt; "Cannot create a new stream: "
  
                           &lt;&lt; av_make_error_string(errorLog, 128, errorStatus) &lt;&lt; endl;
  
                      return -1;
  
                  }
  
  
  
  
  
                  av_dump_format(m_formatContext, 0, m_output.c_str(), 1);
  
  
  
                  m_stream->codec->pix_fmt = AV_PIX_FMT_YUV420P;
  
                  m_stream->codec->width = 1920;
  
                  m_stream->codec->height = 1080;
  
                  //m_stream->codec->codec_id = AV_CODEC_ID_H264;
  
                  m_stream->codec->bit_rate = 40000;
  
                  m_stream->codec->time_base.den = 30;
  
                  m_stream->codec->time_base.num = 1;
  
                  m_stream->time_base.den = 30;
  
                  m_stream->time_base.num = 1;
  
  
  
                  m_stream->codec->codec_tag = 0;
  
                  if (m_formatContext->oformat->flags &amp; AVFMT_GLOBALHEADER)
  
                      m_stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
  
  
  
  
  
                  if (!(m_formatContext->oformat->flags &amp; AVFMT_NOFILE))
  
                      errorStatus = avio_open(&amp;m_formatContext->pb, m_output.c_str(), AVIO_FLAG_WRITE);
  
  
  
  
  
  
  
                  if ((errorStatus) &lt; 0) {
  
                      cerr &lt;&lt; "Cannot open output: "
  
                           &lt;&lt; av_make_error_string(errorLog, 128, errorStatus) &lt;&lt; endl;
  
                      return -1;
  
                  }
  
  
  
  
  
                  if (avformat_write_header(m_formatContext, NULL) &lt; 0) {
  
                      cerr &lt;&lt; "Cannot write header to stream: "
  
                           &lt;&lt; av_make_error_string(errorLog, 128, errorStatus) &lt;&lt; endl;
  
                      return -1;
  
                  }
  
  
  
  
  
                  /******stream*******/
  
  
  
                  FILE *fp_yuv = NULL;
  
                  fp_yuv=fopen("output.yuv","wb+");
  
  
  
                  // Read frames and save first five frames to disk
  
                  i=0;
  
  
  
                  while(av_read_frame(pFormatCtx, &amp;packet)>=0) {
  
                  // Is this a packet from the video stream?
  
                      if(packet.stream_index==videoStream) {
  
  
  
                          // Decode video frame
  
                          avcodec_decode_video2(pCodecCtx, pFrame, &amp;frameFinished, &amp;packet);
  
  
  
                          // Did we get a video frame?
  
                          if(frameFinished) {
  
  
  
                              AVPacket Outpacket;
  
                              int got_packet_ptr;
  
                              av_init_packet(&amp;Outpacket);
  
                              Outpacket.data = NULL;
  
                              Outpacket.size = 0;
  
                              int out_size = avcodec_encode_video2(nv_codec_context, &amp;Outpacket, pFrame, &amp;got_packet_ptr);
  
                              Outpacket.pts = av_rescale_q(pFrame->pts, m_stream->codec->time_base, m_stream->time_base);
  
  
  
                              fwrite(Outpacket.data,1,Outpacket.size,fp_yuv);
  
  
  
                              //av_write_frame(m_formatContext, &amp;Outpacket);
  
                              av_interleaved_write_frame(m_formatContext, &amp;Outpacket);
  
  
  
                              //Free the packet that was allocated by encoder
  
                              av_packet_unref(&amp;Outpacket);
  
                    }
  
                  }
  
  
  
                  // Free the packet that was allocated by av_read_frame
  
                  av_packet_unref(&amp;packet);
  
                  }
  
  
  
                  fclose(fp_yuv);
  
  
  
  
  
                  // Free the YUV frame
  
                  av_frame_free(&amp;pFrame);
  
  
  
                  // Close the codecs
  
                  avcodec_close(pCodecCtx);
  
                  avcodec_close(pCodecCtxOrig);
  
                  avcodec_close(m_stream->codec);
  
                  avformat_free_context(m_formatContext);
  
  
  
                  // Close the video file
  
                  avformat_close_input(&amp;pFormatCtx);
  
  
  
  
  
                  return 0;
  
              }
  
  </string></iostream>

  Above is my code for decoding a .mp4 file, outputting to a network stream through RTP. But it does not work. On the client side, I call VLC library to decode the stream ( VlcMedia(url, _instance) where url is rtp/h264 ://@147.8.179.229:6666 ). When I change the protocal to UDP, it works. However, it is not stable. The frames jumps and probably the frame lost or something wrong with the pts setting ?

  UPDATED :

  When I use UDP, I got this error message.
  

  When I use RTP, I got this error message :
  

  Not sure about how to solve this problem, Can anyone help ? Thanks very much.

• ffmpeg concatenation after using drawtext filter

  12 août 2016, par Sven Hoskens

  I’m fairly new to ffmpeg, but after a few days of searching on this issue, I’ve completely hit a brick wall. Any help would be appreciated.

  My use case : Our client wants to upload videos for multiple regions. Each video will be the same format, 1920x1080, mp4. For each region, they want to add a different image at the end of the video, for a few seconds. This image contains their logo, some additional info, and a variable code. They will enter this code alongside the uploaded video. The image stays the same, so is already present on the server.
  So basically, I have an input video, a video of an image, and a small code. I need to add this code to the video of the image (in a predefined position), and then I need to add the resulting video to the end of the input video. Once that is complete, I just need to output the video in 1920x1080 and in 1024x576.

  I have tried several things, but the concatenation step always fails with the manipulated video’s.

  Attempt 1

  In my first attempt, I used ffmpeg to create a video from an image, and add the text in the designated area.

  ffmpeg -y -f lavfi -i image.png -r 30 -t 10 -pix_fmt yuv420p -map 0:v -vf drawtext="fontfile=HelveticaNeue.dfont: text='GLNS/TEST/1234b': fontcolor=black: fontsize=20: box=1: boxcolor=white: boxborderw=7: x=179: y=805" imageVideo.mp4

  This command creates a .mp4 video of the correct size, with a duration of 10 seconds, and adds the text ’GLNS/TEST/1234b’ in the correct location.

  Next, I use the following command to concatenate the two videos. Both have the same resolution and codec.

  ffmpeg -f concat -safe 0 -i config.txt -vf scale=1920:1080 outputHD.mp4 -vf scale=1024:576 outputSD.mp4

  config.txt contains following :

  file my_input_file.mp4
  
  file ImageVideo.mp4

  This concatenation works with regular videos. However, when I use it with ImageVideo.mp4 (the one created by the first command) I get this error log :

  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f86dc924600] Auto-inserting h264_mp4toannexb bitstream filtereed=0.509x    
  
  [aac @ 0x7f86dc019e00] Number of bands (31) exceeds limit (5).
  
  Error while decoding stream #0:1: Invalid data found when processing input
  
  [aac @ 0x7f86dc019e00] Number of bands (27) exceeds limit (8).
  
  Error while decoding stream #0:1: Invalid data found when processing input
  
  [h264 @ 0x7f86dd857200] Error splitting the input into NAL units.
  
  [h264 @ 0x7f86dd829400] Invalid NAL unit size.
  
  [h264 @ 0x7f86dd829400] Error splitting the input into NAL units.
  
  [aac @ 0x7f86dc019e00] Number of bands (10) exceeds limit (1).
  
  Error while decoding stream #0:1: Invalid data found when processing input
  
  [h264 @ 0x7f86dd816800] Invalid NAL unit size.
  
  [h264 @ 0x7f86dd816800] Error splitting the input into NAL units.
  
  [aac @ 0x7f86dc019e00] Number of bands (24) exceeds limit (1).
  
  Error while decoding stream #0:1: Invalid data found when processing input
  
  
  
  #this goes on for a few hundred lines

  The resulting output is identical to the input video, but does not contain the desired image video at the end.

  Attempt 2

  Since the above attempt didn’t work, I tried concatenating a video I let our designer make of the image with Adobe After Effects. This video was also saved as a .mp4 with the H264 codec. If I concatenate the input video and this one, I get a correct result. However, as soon as I add the code in the designated area with this command :

  ffmpeg -i new_image_video.mp4 -vf drawtext="fontfile=HelveticaNeue.dfont: text='GLNS/TEST/1234b': fontcolor=black: fontsize=20: box=1: boxcolor=white: boxborderw=7: x=179: y=805" -c:v libx264 imageVideo.mp4

  I get this error :

  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff94c800000] Auto-inserting h264_mp4toannexb bitstream filter97x    
  
  [h264 @ 0x7ff94b053800] top block unavailable for requested intra mode -1
  
  [h264 @ 0x7ff94b053800] error while decoding MB 0 0, bytestream 49526
  
  [h264 @ 0x7ff94b053e00] number of reference frames (1+3) exceeds max (3; probably corrupt input), discarding one
  
  [h264 @ 0x7ff94b053e00] chroma_log2_weight_denom 28 is out of range
  
  [h264 @ 0x7ff94b053e00] illegal long ref in memory management control operation 2
  
  [h264 @ 0x7ff94b053e00] cabac_init_idc 32 overflow
  
  [h264 @ 0x7ff94b053e00] decode_slice_header error
  
  [h264 @ 0x7ff94b053e00] no frame!
  
  [h264 @ 0x7ff94b053800] concealing 8160 DC, 8160 AC, 8160 MV errors in I frame
  
  [h264 @ 0x7ff94b072a00] reference overflow 22 > 15 or 0 > 15
  
  [h264 @ 0x7ff94b072a00] decode_slice_header error
  
  [h264 @ 0x7ff94b072a00] no frame!
  
  [h264 @ 0x7ff94b01a400] illegal modification_of_pic_nums_idc 20
  
  [h264 @ 0x7ff94b01a400] decode_slice_header error
  
  [h264 @ 0x7ff94b01a400] no frame!
  
  [h264 @ 0x7ff94b01aa00] illegal modification_of_pic_nums_idc 20
  
  [h264 @ 0x7ff94b01aa00] decode_slice_header error
  
  [h264 @ 0x7ff94b01aa00] no frame!
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  [h264 @ 0x7ff94b053800] deblocking_filter_idc 8 out of range
  
  [h264 @ 0x7ff94b053800] decode_slice_header error
  
  [h264 @ 0x7ff94b053800] no frame!
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  [h264 @ 0x7ff94b053e00] illegal memory management control operation 8
  
  [h264 @ 0x7ff94b053e00] co located POCs unavailable
  
  [h264 @ 0x7ff94b053e00] error while decoding MB 2 0, bytestream -35
  
  [h264 @ 0x7ff94b053e00] concealing 8160 DC, 8160 AC, 8160 MV errors in B frame
  
  [h264 @ 0x7ff94b072a00] number of reference frames (1+3) exceeds max (3; probably corrupt input), discarding one
  
  
  
  # this goes on for a while...
  
  
  
  [h264 @ 0x7ff94b01a400] concealing 4962 DC, 4962 AC, 4962 MV errors in B frame
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  frame= 2553 fps= 17 q=-1.0 Lsize=   26995kB time=00:01:42.16 bitrate=2164.6kbits/s dup=0 drop=60 speed=0.697x    
  
  video:25258kB audio:1661kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.285236%
  
  [libx264 @ 0x7ff94b810400] frame I:35    Avg QP:17.45  size: 55070
  
  [libx264 @ 0x7ff94b810400] frame P:711   Avg QP:19.73  size: 18712
  
  [libx264 @ 0x7ff94b810400] frame B:1807  Avg QP:21.53  size:  5884
  
  [libx264 @ 0x7ff94b810400] consecutive B-frames:  3.4%  5.0%  4.9% 86.6%
  
  [libx264 @ 0x7ff94b810400] mb I  I16..4: 38.2% 49.3% 12.5%
  
  [libx264 @ 0x7ff94b810400] mb P  I16..4: 12.4% 14.0%  1.0%  P16..4: 29.6%  4.8%  1.9%  0.0%  0.0%    skip:36.2%
  
  [libx264 @ 0x7ff94b810400] mb B  I16..4:  1.5%  1.2%  0.1%  B16..8: 27.3%  1.6%  0.1%  direct: 1.8%  skip:66.4%  L0:45.8% L1:51.4% BI: 2.8%
  
  [libx264 @ 0x7ff94b810400] 8x8 transform intra:49.5% inter:85.4%
  
  [libx264 @ 0x7ff94b810400] coded y,uvDC,uvAC intra: 21.2% 22.3% 2.5% inter: 4.6% 7.0% 0.0%
  
  [libx264 @ 0x7ff94b810400] i16 v,h,dc,p: 23% 26% 10% 41%
  
  [libx264 @ 0x7ff94b810400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 19% 35%  3%  3%  3%  3%  3%  2%
  
  [libx264 @ 0x7ff94b810400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 16%  5%  7%  6%  5%  5%  4%
  
  [libx264 @ 0x7ff94b810400] i8c dc,h,v,p: 67% 16% 15%  2%
  
  [libx264 @ 0x7ff94b810400] Weighted P-Frames: Y:7.3% UV:4.2%
  
  [libx264 @ 0x7ff94b810400] ref P L0: 66.3%  8.7% 17.9%  7.0%  0.1%
  
  [libx264 @ 0x7ff94b810400] ref B L0: 88.2% 10.1%  1.7%
  
  [libx264 @ 0x7ff94b810400] ref B L1: 94.9%  5.1%
  
  [libx264 @ 0x7ff94b810400] kb/s:2026.12
  
  [aac @ 0x7ff94b072400] Qavg: 635.626

  The resulting output is identical to the input video, but does not contain the desired image video at the end.

  One thing I have noticed : When I inspect the video files on mac (Get info) they always contain these lines at ’More info’ :

  Dimensions: 1920 x 1080
  
  Codecs: H.264, AAC
  
  Color profile: HD(1-1-1)
  
  Duration: 01:42
  
  Audio channels: 2
  
  Last opened: Today 11:02

  However, the video’s which pass through the drawtext filter have this :

  Dimensions: 1920 x 1080
  
  Codecs: AAC, H.264
  
  Duration: 00:10
  
  Audio channels: 2
  
  Last opened: Today 11:07

  As you can see, there is no color profile entry, and the codecs have switched places. I assume this is related to my issue, but I can’t seem to find a fix for it.

  PS : The application will run in a php environment (Symfony). I noticed the concat command wasn’t available in the Symfony bundle for ffmpeg, so I’m using the regular terminal commands. I’ll execute these using php.

  EDIT
  Attempt 3

  On advise of a coworker, I tried converting the video to .avi and reconverting to .mp4, in the hopes this would lose any corrupted or extra info included by the drawtext filter. This spits out a completely different error.

  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f812413da00] Auto-inserting h264_mp4toannexb bitstream filtereed=0.516x    
  
  [concat @ 0x7f8124009a00] DTS 1569260 < 2551000 out of order
  
  [h264 @ 0x7f8124846800] left block unavailable for requested intra4x4 mode -1
  
  [h264 @ 0x7f8124846800] error while decoding MB 0 0, bytestream 47919
  
  [h264 @ 0x7f8124846800] concealing 8160 DC, 8160 AC, 8160 MV errors in I frame
  
  [aac @ 0x7f8125809a00] Queue input is backward in time
  
  [aac @ 0x7f8125815a00] Queue input is backward in time
  
  [h264 @ 0x7f8124846e00] number of reference frames (1+3) exceeds max (3; probably corrupt input), discarding one
  
  [h264 @ 0x7f8124846e00] chroma_log2_weight_denom 26 is out of range
  
  [h264 @ 0x7f8124846e00] deblocking_filter_idc 32 out of range
  
  [h264 @ 0x7f8124846e00] decode_slice_header error
  
  [h264 @ 0x7f8124846e00] no frame!
  
  [mp4 @ 0x7f8124802200] Non-monotonous DTS in output stream 0:1; previous: 4902912, current: 4505491; changing to 4902913. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7f8125813000] Non-monotonous DTS in output stream 1:1; previous: 4902912, current: 4505491; changing to 4902913. This may result in incorrect timestamps in the output file.
  
  [h264 @ 0x7f8124803400] reference overflow 20 > 15 or 0 > 15
  
  [h264 @ 0x7f8124803400] decode_slice_header error
  
  [h264 @ 0x7f8124803400] no frame!
  
  [mp4 @ 0x7f8124802200] Non-monotonous DTS in output stream 0:1; previous: 4902913, current: 4506515; changing to 4902914. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7f8125813000] Non-monotonous DTS in output stream 1:1; previous: 4902913, current: 4506515; changing to 4902914. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7f8124802200] Non-monotonous DTS in output stream 0:1; previous: 4902914, current: 4507539; changing to 4902915. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7f8125813000] Non-monotonous DTS in output stream 1:1; previous: 4902914, current: 4507539; changing to 4902915. This may result in incorrect timestamps in the output file.
  
  
  
  # Again, this continues for quite a while.

• App review video ( App Store )

  23 août 2016, par Arnold Mapps

  I want to convert a video recorded with Quick Time ( resolution 750*1334 ) to 1080*1920.
  Apple only accept resolution 1080*1920p for iphone6PLUS for App review video.

  My license key with final cut pro X has expired and
  ffmpeg -i AppPreviewIphone6.mp4 -vf scale=1080:1920 AppPreviewIphone6PLUS.mp4 give me a resolution of 1079*1920 instead 1080*1920

  Have you an idea what software I can use to change video resolution ?