Recherche avancée

Sur d’autres sites (6680)

• Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

  24 octobre 2019, par Rocky Singh

  I am trying to convert an avi video file to flv format via FFMPEG with the following command :

  -i C:\files\input\test.avi -y -ab 448k -ar 48000 -vcodec mpeg4 -s 640x480 -f flv C:\files\output\test.flv

  Here is the response I am getting from ffmpeg :

  Input :

  Input #0, avi, from 'C:\files\input\test.avi':
  
    Metadata:
  
      encoder         : VirtualDubMod 1.5.10.2 (build 2540/release)
  
    Duration: 00:01:00.00, start: 0.000000, bitrate: 1813 kb/s
  
      Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 640x272 [SAR 1:1 DAR 40:17], 25 tbr, 25 tbn, 25 tbc
  
      Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), s16, 448 kb/s

  Output :

  Output #0, flv, to 'C:\files\output\test.flv':
  
    Metadata:
  
      encoder         : VirtualDubMod 1.5.10.2 (build 2540/release)
  
      Stream #0:0: Video: mpeg4, yuv420p, 640x480 [SAR 30:17 DAR 40:17], q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
      Stream #0:1: Audio: mp3, 48000 Hz, 5.1(side), s16, 448 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mpeg4 -> mpeg4)
  
    Stream #0:1 -> #0:1 (ac3 -> libmp3lame)
  
  Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

  Can you tell me what is MAY BE here ? and what is wrong above ?

• Video was encoded with a new width + height along with the old one. Can I re-encode with just the old dimensions using ffmpeg ?

  14 novembre 2019, par Kabir

  I’ve got a video out of OBS that play’s normally on my system if I open it with VLC for example, but when I import it into my editor (Adobe Premiere) it gets weirdly cropped down. When inspecting the data for the video it’s because for some reason the video gets encoded with a new width and height over top of the old one ! Is there a way using ffmpeg to re-encode/transcode the video to a new file with only the original width and height ?

  

  Bonus question : would there be a way for me to extract the audio channels from my video as separate .mp3s ? There are 4 audio channels on the video

• Error while opening encoder for output stream #1:2 - maybe incorrect parameters such as bit_rate, rate, width or height

  14 novembre 2019, par geo-freak

  I am encoding a video which has dvb_teletext inside. I got an error saying Error while opening encoder for output stream #1:2. I used the following command to encode my video.

  ffmpeg -threads 8 -i input.ts -s 400x222 -qscale:v 4 -vcodec libx264 -s 320x240 -b:v 512000 -maxrate 512000 -acodec libfaac -b:a 32000 -ar 48000 -force_key_frames expr:gte(t,n_forced*3) -hls_flags single_file -hls_list_size 0 -hls_time 3 -y output.m3u8

  You can see the log output of my command.

  Input #0, mpegts, from 'pipe:':
  
    Duration: N/A, start: 91105.257722, bitrate: N/A
  
    Program 1 
  
      Stream #0:0[0x4b1]: Video: h264 (High), 4 reference frames ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg), 704x576 [SAR 16:11 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0xc7d](swe): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 256 kb/s
  
      Stream #0:2[0x1932](swe,nor,dan,fin,swe): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006), 492x250
  
  [Parsed_fps_0 @ 0x55975e31b7e0] fps=1/1
  
  [graph 0 input from stream 0:0 @ 0x55975e1fb9c0] w:704 h:576 pixfmt:yuv420p tb:1/90000 fr:25/1 sar:16/11 sws_param:flags=2
  
  [scaler for output stream 0:0 @ 0x55975e1f8fe0] w:400 h:222 flags:'bicubic' interl:0
  
  [swscaler @ 0x55975e1a0c80] deprecated pixel format used, make sure you did set range correctly
  
  [scaler for output stream 0:0 @ 0x55975e1f8fe0] w:704 h:576 fmt:yuv420p sar:16/11 -> w:400 h:222 fmt:yuvj420p sar:74/75 flags:0x4
  
  [graph 1 input from stream 0:0 @ 0x55975e177120] w:704 h:576 pixfmt:yuv420p tb:1/90000 fr:25/1 sar:16/11 sws_param:flags=2
  
  [scaler for output stream 1:0 @ 0x55975e1f1020] w:320 h:240 flags:'bicubic' interl:0
  
  [scaler for output stream 1:0 @ 0x55975e1f1020] w:704 h:576 fmt:yuv420p sar:16/11 -> w:320 h:240 fmt:yuv420p sar:4/3 flags:0x4
  
  [graph 2 input from stream 0:1 @ 0x55975e532f20] tb:1/48000 samplefmt:s16p samplerate:48000 chlayout:0x3
  
  [audio format for output stream 1:1 @ 0x55975e533540] auto-inserting filter 'auto-inserted resampler 0' between the filter 'Parsed_anull_0' and the filter 'audio format for output stream 1:1'
  
  [auto-inserted resampler 0 @ 0x55975e5358e0] ch:2 chl:stereo fmt:s16p r:48000Hz -> ch:2 chl:stereo fmt:s16 r:48000Hz
  
  [libx264 @ 0x55975e2349a0] VBV maxrate specified, but no bufsize, ignored
  
  [libx264 @ 0x55975e2349a0] using SAR=4/3
  
  [libx264 @ 0x55975e2349a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 0x55975e2349a0] profile High, level 2.0
  
  Output #0, hls, to 'output.m3u8':
  
      Stream #1:0: Video: h264 (libx264), -1 reference frame, yuv420p, 320x240 [SAR 4:3 DAR 16:9], q=-1--1, 512 kb/s, 25 fps, 25 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc57.24.102 libx264
  
      Side data:
  
        unknown side data type 10 (24 bytes)
  
      Stream #1:1(swe): Audio: aac (libfaac), 48000 Hz, stereo, s16, 32 kb/s
  
      Metadata:
  
        encoder         : Lavc57.24.102 libfaac
  
      Stream #1:2(swe,nor,dan,fin,swe): Subtitle: webvtt, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc57.24.102 webvtt
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
  
    Stream #0:0 -> #1:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #1:1 (mp2 (native) -> aac (libfaac))
  
    Stream #0:2 -> #1:2 (dvb_teletext (libzvbi_teletextdec) -> webvtt (native))
  
  Error while opening encoder for output stream #1:2 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  [Parsed_fps_0 @ 0x55975e31b7e0] 0 frames in, 0 frames out; 0 frames dropped, 0 frames duplicated.
  
  [libx264 @ 0x55975e2349a0] final ratefactor: 23.40
  
  (END)

  Do I need to use map options here ? How to resolve this ? Any help or suggestion ?