Re: [FFmpeg-user] Is there an input or output file-size limit that FFmpeg can handle ?

Thanks Carl, Gyan ! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Problem converting to mp4 with exact video bit rate

Hi, Thanks for the reply.. I tried removing crf attribute and it worked.. On Tue, Feb 13, 2018 at 7:46 PM, Carl Eugen Hoyos wrote: > 2018-02-13 10:16 GMT+01:00 Vikram Arora : > > > ffmpeg -i src_file.mp4 -y -ab "512k" -ac "2" -c:a "libfdk_aac" >

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

2018-02-13 22:28 GMT+01:00 Alex P : > Does anyone know of a lossless encoder that inputs and outputs bgr24? (ljpeg, I don't claim it helps you though.) Please avoid top-posting here, Carl Eugen ___ ffmpeg-user mailing list

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

On Tue, Feb 13, 2018, at 12:28 PM, Alex P wrote: > > Does anyone know of a lossless encoder that inputs and outputs bgr24? $ ffmpeg -h encoder=libx264rgb [...] Supported pixel formats: bgr0 bgr24 rgb24 ___ ffmpeg-user mailing list

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

Thank you for the offer James, but I think I know how to proceed. Looking at the pixel formats for various implementations of x264 and x265, I'm not seeing any that support bgr24, which is the only uncompressed format offered by my capture card, out of yuyv422, yuv420p, nv12, bgr0 and bgr24

Re: [FFmpeg-user] Impossible to convert between the formats supported by the filter 'Parsed_null_0' and the filter 'auto_scaler_0'

> > Recently, I faced transcoding issues with fully hardware nvdec/nvenc > scheme. Particularly, my FFmpeg feed fails with the following error after > 30-60 minutes of live transcoding: > I have recently encountered this as well, but with DVD video material. > As I understand, some parameters

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

On Tue, Feb 13, 2018 at 6:57 AM, Alex P wrote: > I think I've figured it out. When I use nv12 or yuv420p as the input and > output pixel format, I get x1 performance. If I use bgr24/rgb24 as the > input and yuv444p as the output, I get around x0.3. > Looks like switching

[FFmpeg-user] Impossible to convert between the formats supported by the filter 'Parsed_null_0' and the filter 'auto_scaler_0'

Hello FFmpeg community, Recently, I faced transcoding issues with fully hardware nvdec/nvenc scheme. Particularly, my FFmpeg feed fails with the following error after 30-60 minutes of live transcoding: --- [h264_cuvid @ 0x556e21e67e00] Initializing cuvid hwaccel [h264_cuvid @

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

I think I've figured it out. When I use nv12 or yuv420p as the input and output pixel format, I get x1 performance. If I use bgr24/rgb24 as the input and yuv444p as the output, I get around x0.3. But even when I use bgr0 for the input and output, I get less than x1. Does anyone know what

Re: [FFmpeg-user] FFmpeg hanging on complex filter

Apologies, continued...I tried that but it didn`t work. Console output below, as you can see it just hangs and never completes or exits C:\WINDOWS\system32>ffmpeg.exe -y -i "C:\Users\test2_FADED.mp4" -filter_complex "[0:v]trim=start_frame=0:end_frame=100,setpts=PTS-STARTPTS[a0]; [0:v]trim=start_

Re: [FFmpeg-user] FFmpeg hanging on complex filter

Thanks Carl, I tried that but it didn On Mon, Feb 12, 2018 at 6:48 PM, Carl Eugen Hoyos wrote: > 2018-02-13 0:46 GMT+01:00 Jesse Koegler : > > > ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers > > Please test current FFmpeg git

Re: [FFmpeg-user] Problem converting to mp4 with exact video bit rate

2018-02-13 10:16 GMT+01:00 Vikram Arora : > ffmpeg -i src_file.mp4 -y -ab "512k" -ac "2" -c:a "libfdk_aac" > -ar "44100" -c:v "libx264" -r "29.97" This does not look like a correct frame-rate, try "-r 3/1001" > -b:v "512k" -minrate "512k" -maxrate "512k" -bufsize

[FFmpeg-user] Problem converting to mp4 with exact video bit rate

Hi, I am trying to convert a mp4 video file to 512k amd 1024k video bitrate, but the converted file is only about 350k. The command used is : ffmpeg -i src_file.mp4 -y -ab "512k" -ac "2" -c:a "libfdk_aac" -ar "44100" -c:v "libx264" -r "29.97" -b:v "512k" -minrate "512k" -maxrate "512k" -bufsize