Re: [FFmpeg-user] MP3 enconding bitrate

2014-11-06 Thread Paulo Fidalgo
On 30/10/14 09:07, Moritz Barsnick wrote: On Thu, Oct 30, 2014 at 08:05:22 +, Paulo Fidalgo wrote: I've tried with 320k and 256k and both files don't play. While applying trial and error using ffmpeg, you might also want to analyze the failing (and the successful) files with an MP3

[FFmpeg-user] FFmpeg record RTMP to FLV

2014-11-06 Thread shacky
Hi. I'm trying to record some RTMP stream with FFmpeg to a FLV file or something else. I'm trying the following command: ffmpeg -i rtmp://94.47.147.130:1937/live/livestream -f flv -t 60 test.flv But I receive a 6 byte file which seems to contain only one frame. This is the output of ffmpeg:

Re: [FFmpeg-user] FFmpeg record RTMP to FLV

2014-11-06 Thread Moritz Barsnick
On Thu, Nov 06, 2014 at 13:21:28 +0100, shacky wrote: ffmpeg version 1.2.4 Copyright (c) 2000-2013 the FFmpeg developers This is a quite old version. I don't know if RTMP support was as good back then as it is now. 2.4.x is current. please try to get hold of that, or use latest git if you

Re: [FFmpeg-user] MP3 enconding bitrate

2014-11-06 Thread Carl Eugen Hoyos
Paulo Fidalgo paulo.fidalgo.pt at gmail.com writes: mp3check -ve 2L38_01_96kHz-ffmpeg-256k.mp3 2L38_01_96kHz-ffmpeg-256k.mp3: 813 bytes of junk before first frame header but with lame there's no errors. Please confirm that you tested with -write_xing 0 and your results. Please understand

[FFmpeg-user] what's the threads mode when using ffmpeg to transcode

2014-11-06 Thread cmwu
hi, I am confused how ffmpeg allocate it's cpu resource when i am using ffmpeg to transcoding, for example: how much resource to decode, and how much to encode I have set the threads to 1 and do a experiment: ffmpeg2.1 -i /home/mps/chd/out.avi -acodec pcm_s16le -ar 44100 -ac 2 -vcodec

Re: [FFmpeg-user] what's the threads mode when using ffmpeg to transcode

2014-11-06 Thread Henk D. Schoneveld
On 06 Nov 2014, at 10:47, cmwu 277893...@qq.com wrote: hi, I am confused how ffmpeg allocate it's cpu resource when i am using ffmpeg to transcoding, for example: how much resource to decode, and how much to encode I have set the threads to 1 and do a experiment: ffmpeg2.1 -i

Re: [FFmpeg-user] going files will slightly different FPS

2014-11-06 Thread Aaron Lee
Due to some hardware limitation, the my video capture box captured video in mp4 format with slightly different fps such as ranges from 59.21 and 60.01. 1. why would a machine have fluctuating fps like this? 2. how can i join them without reenoding them?

Re: [FFmpeg-user] what's the threads mode when using ffmpeg to transcode

2014-11-06 Thread Carl Eugen Hoyos
cmwu 277893958 at qq.com writes: ffmpeg2.1 This looks old -i /home/mps/chd/out.avi I found the cpu load use is 140%, it's not 100% If you don't want FFmpeg to decode (!) with automatically chosen number of threads (as many cores as you have), tell it with: $ ffmpeg -threads 1 -i file

[FFmpeg-user] Execute several ffmpeg processes concurrently

2014-11-06 Thread Miles Chan
hi all, I'm using ffmpeg command line tool to convert video, (FYI, i'm not just use it in shell, i use a module https://github.com/senko/python-video-converter that execute a ffmpeg command as a subprocess), and when i execute ffmpeg process one by one, everything was all right, but, when i