Details of Nache1080.mp4:- resolution=1920×1080 fps=60 Avg Video Bit Rate=11610 kbps duration=00:00:14 size=19.6 MB I produced mpeg2 video from this mp4 video using below command: ffmpeg -i Nache1080.mp4 -c:v mpeg2video -s 720×576 -r 25 -b:v 20000k Nache_dvd_20000.mpg Details of produced mpeg2 video namely Nache_dvd_20000.mpg:- min Video Bit Rate=3298 kbps max Video Bit Rate=5954 kbps avg Video … Read more
I use the software Kdenlive in Archlinux OS to transcode a 1 hour of video (1:12 :10) in Mpeg2 format in 1440x1080px 50i to DNxHD120 1920×1080 25p. Kdenlive print those parameters in the transcode’s window : -s 1920×1080 -r 25 -vb 120000k -threads 0 -vcodec dnxhd -acodec pcm_s16le -ar 48000 %1.mov. The problem is : … Read more
I am trying to save my collection of DVDs to my Mac to have in the TV app. I am using libx264 to encode from mpeg2video to h264. I want to maintain as much quality as possible and file size is not a big concern. I have tried a CRF of 0 but QuickTime doesn’t … Read more
I am trying to save my collection of DVDs to my Mac to have in the TV app. I am using libx264 to encode from mpeg2video to h264. I want to maintain as much quality as possible and file size is not a big concern. I have tried a CRF of 0 but QuickTime doesn’t … Read more
I am trying to burn a memorial slideshow I made to a DVD that says it holds 4.7G and 120 min. My slide show is 29 min and 4.58G. Why does it tell me the DVD doesnt have enough space when trying to burn? It says theres only 4.37G on the blank disc (brand new). … Read more
I’ve got a situation here. I’m trying to use a camera hooked up to a capture card as a webcam, however the capture card stream is MPEG2 encoded. Which basically means, since no webcam-using programs actually are able to decode MPEG2 streams (CL-Eye Test seems to be the only working program) I can’t use this … Read more
When do we send duplicate Transport stream packets ? What should be done at demultiplexer when we receive duplicate TS packet? Answer MPEG-2 allows a maximum of two consecutive packets with the same PID and the same CC value. Duplicate and identical packets can be included for redundancy if the original packet holds important information. … Read more
A very annoying situation… I have an MPG2 video that is at the framerate of 29.97, yet when converting to MP4 frames are duplicated. That command (straight conversion, no options): ffmpeg -i ~/Desktop/file.mpg ~/Desktop/file.mp4 causes duplicated frames… While setting the framerate with: ffmpeg -i ~/Desktop/file.mpg -framerate 29.97 ~/Desktop/file.mp4 Doesn’t work either! Leading me to try: … Read more
I’m trying to make a simulated live HLS/DASH server using the equivalent of the following chain: tsplay -loop multi_resolution.ts | shaka_packager | nginx The problem is creating the file “multi_resolution.ts”: It needs to contain a single program with 1 audio and 3 video PIDs, one each for 720p, 480p and 360p. Why? Because that’s the … Read more
I have got a WMV (v9 (WMV3), 960×720, 30.000030 fps, planar 4:2:0 YUV, produced by PowerPoint 2010) file and need to convert it to MPEG2 – the only format my TVset can read from an USB flash drive (I have also tried MP4/h.264, AVI/XVID – nothing but MPEG2 works). I have managed to to the … Read more
