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• MOBILE FFMPEG filter complex with yup420 output issues

  9 avril 2021, par najam ulhassan

  I am creating video by images using mobile-ffmpeg using complex-filter and format yuv420, I am having problem width is not divisible by 2(601*900) like so.
This error is occuring for some video creations for many it is working fine.
My filter complex is scaling, rotating and overlaying the input images.
Here is ffmpeg command :

  


  ffmpeg -loop 1 -t 10 -i background.jpg -s 700x900 

-loop 1 -i img1.png -loop 1 -i img2.jpg 
-loop 1 -i img3.jpg

-filter_complex
[1]scale=eval=frame:w='72':h='72'[img1];
[2]scale=eval=frame:w='598':h='382',rotate=a=0*PI/180:c=black@0:oh='roth(0*PI/180)':ow='rotw(0*PI/180)':bilinear=1,fade=in:st=2:d=3:alpha=1[img2];
[3]scale=eval=frame:w='598':h='382',rotate=a=0*PI/180:c=black@0:oh='roth(0*PI/180)':ow='rotw(0*PI/180)':bilinear=1,fade=in:st=3:d=4:alpha=1[img3];
[0][img1]overlay=W-w-5:5:format=auto:shortest=1:format=auto[bg1];
[bg1][img2]overlay=44:500:shortest=1:format=auto[bg2];
[bg2][img3]overlay=44:22:shortest=1:format=auto,format=yuv420p" 

output.mp4


  


  Having some searches about it and found -vf filter can adjust the width:height but it is restricted not to use with filter-complex...

  


  My error logs :

  


   E/mobile-ffmpeg: [libx264 @ 0xbd8c8800] 
 E/mobile-ffmpeg: width not divisible by 2 (601x901)
 E/mobile-ffmpeg: Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height


  


• ffmpeg - Audio Issues with TS File

  5 décembre 2020, par MeaningOfLife

  I am new to the world of ffmpeg, so I apologize in advance if this is a stupid question or request.

  


  I'm in the process of trying to convert a .ts file to a h264/mp4. I was able to successfully convert the video, however whenever I go to play the output file, the audio is weird. Most of the audio is only coming through the left channel. I noticed that the audio has multiple channels - 6 to be exact. And there are two audio streams as well. I'm assuming that this has something to do with it, but I am not sure what exactly to put in the command line to fix it.

  


  I was hoping there would be a way to copy the video stream from the mp4 I had already made with ffmpeg, and then replace the audio from that mp4 with the audio from the source ts file - preferably mixed down into regular stereo audio. It is quite a big file, so I would like to not have to convert the video stream again if I don't have to.

  


  Here is the media information from the source video.

  


  General
ID : 1 (0x1)
Complete name : D:\88th Annual Christmas in Rockefeller Center.ts
Format : MPEG-TS
File size : 9.80 GiB
Duration : 2 h 7 min
Overall bit rate mode : Variable
Overall bit rate : 11.0 Mb/s
Law rating : None

Video
ID : 101 (0x65)
Menu ID : 1 (0x1)
Format : MPEG Video
Format version : Version 2
Format profile : Main@High
Format settings : BVOP
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, GOP : Variable
Format settings, picture structure : Frame
Codec ID : 2
Duration : 2 h 7 min
Bit rate mode : Variable
Bit rate : 9 851 kb/s
Maximum bit rate : 80.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Active Format Description : Full frame 16:9 image
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.159
Time code of first frame : 00:00:00;00
Time code source : Group of pictures header
Stream size : 8.80 GiB (90%)

Audio #1
ID : 102 (0x66)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : 129
Duration : 2 h 7 min
Bit rate mode : Constant
Bit rate : 384 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Delay relative to video : 32 ms
Stream size : 351 MiB (3%)
Language : English
Service kind : Complete Main

Audio #2
ID : 7543 (0x1D77)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : 129
Duration : 2 h 7 min
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Delay relative to video : 11 ms
Stream size : 176 MiB (2%)
Language : Spanish
Service kind : Complete Main

Text #1
ID : 101 (0x65)-CC1
Menu ID : 1 (0x1)
Format : EIA-608
Muxing mode : A/53 / DTVCC Transport
Muxing mode, more info : Muxed in Video #1
Duration : 2 h 7 min
Bit rate mode : Constant
Stream size : 0.00 Byte (0%)
CaptionServiceName : CC1

Text #2
ID : 101 (0x65)-1
Menu ID : 1 (0x1)
Format : EIA-708
Muxing mode : A/53 / DTVCC Transport
Muxing mode, more info : Muxed in Video #1
Duration : 2 h 7 min
Bit rate mode : Constant
Stream size : 0.00 Byte (0%)


  


• ffserver&ffm : Fixed issues preventing ffserver write_index and files_size from being...

  20 février 2016, par Oliver Collyer

  ffserver&ffm : Fixed issues preventing ffserver write_index and files_size from being set correctly which was breaking ffserver streaming.
  I discovered that ffserver streaming was broken (it seems like it has been since 20th November) and I opened a ticket for this (https://trac.ffmpeg.org/ticket/5250 <https://trac.ffmpeg.org/ticket/5250> ;).
  I spent yesterday learning git bisect (with the kind help of cehoyos) to painstakingly track down the cause. This was made more difficult due to the presence of a segfault in ffserver during the period where the bug was introduced so I first had to identify when and how that was fixed and then retrospectively apply that fix again for each step of the second git bisect to find the actual bug.
  Anyway, the fruits of my labour are the innocent looking patch below to correct a couple of typos and define a valid range for two variables.
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] ffserver.c
  • [DH] libavformat/ffmdec.c