to scale.
It’s one or the other.
How much or little did my earlier suggestions help ?
>
>
>
> On Tuesday, June 16, 2015 7:42 AM, Henk D. Schoneveld
> wrote:
>
>
>
> On 16 Jun 2015, at 05:13, Dani A wrote:
>
>> I am using the below command to covert the
ng gives
FFmpeg Filters Documentation as the first result.
>
>
>
>
>
> On Monday, June 15, 2015 6:58 PM, Henk D. Schoneveld
> wrote:
>
>
>
> On 15 Jun 2015, at 01:23, Dani A wrote:
>
>> I am still struggling with the iphone .mov files I wan
On 16 Jun 2015, at 05:13, Dani A wrote:
> I am using the below command to covert the .mov files to play html5, but it
> takes so much time..Is there another way to convert those files so they can
> play on html5 players but fast to convert...
> ffmpeg -i input.MOV -vf scale=720x406,setdar=16:9
On 15 Jun 2015, at 01:23, Dani A wrote:
> I am still struggling with the iphone .mov files I want to convert them to
> mp4 but they are rotated because they were recorded while the phone is
> vertical. I am using the below command:
> ffmpeg -i video.MOV -acodec libvo_aacenc -vcodec libx264 -me
On 14 Jun 2015, at 02:49, En Figureo Canal wrote:
> On Sat, Jun 13, 2015 at 8:24 PM, Moritz Barsnick wrote:
>
>> On Sat, Jun 13, 2015 at 19:17:51 -0400, En Figureo Canal wrote:
>>> Noticed that, after Henk's reply, if I use -vcodec copy then the output
>>> will "copy" the source video's attrib
On 13 Jun 2015, at 15:42, En Figureo Canal wrote:
> On Sat, Jun 13, 2015 at 8:08 AM, Moritz Barsnick wrote:
>
>> Hi En,
>>
>> On Fri, Jun 12, 2015 at 14:23:24 -0400, En Figureo Canal wrote:
>>> Now, what other options are there using libx264, if any?
>>
>> Well, have you read my email? Why d
June 7, 2015 3:13 PM, Henk D. Schoneveld
> wrote:
>
>
>
> On 07 Jun 2015, at 19:25, Dani A wrote:
>
>> Any answers?
>> Best FFMPEG encoding to reduce file size while not impacting video quality?!
>> is mp4 the best?
>>
>>
>> What i
On 07 Jun 2015, at 19:25, Dani A wrote:
> Any answers?
> Best FFMPEG encoding to reduce file size while not impacting video quality?!
> is mp4 the best?
>
>
> What is the ffmpeg command to make the video to fast start in CentOS?
You\ve probably heard of google
putting ffmpeg faststart as sea
On 01 Jun 2015, at 18:21, t wrote:
>
> I know this might not be possible, but I'd at least appreciate understanding
> what's going on.
>
> I have a video with forced keyframes every 2 seconds. Ideally, I was hoping
> I'd be able to get frame-perfect slices without having to re-encode. For
>
On 18 May 2015, at 17:27, Shiwani Agrawal wrote:
> Hello ,
>
> Thanks for explanation , I would certainly test the speed enhancement for my
> case before paying for the license .
First read about quality of encoders, x264 used by ffmpeg, being the winner for
years at
http://www.compression.ru
On 12 May 2015, at 16:32, Henk D. Schoneveld wrote:
>
> On 12 May 2015, at 15:50, Werner Robitza wrote:
>
>> On Tue, May 12, 2015 at 3:16 PM, Henk D. Schoneveld
>> wrote:
>>>
>>>> On 12 May 2015, at 13:50, Werner Robitza wrote:
>>&
On 12 May 2015, at 15:50, Werner Robitza wrote:
> On Tue, May 12, 2015 at 3:16 PM, Henk D. Schoneveld
> wrote:
>>
>>> On 12 May 2015, at 13:50, Werner Robitza wrote:
>>>
>>> On Tue, May 12, 2015 at 11:47 AM, Henk D. Schoneveld
>>> wrote:
> On 12 May 2015, at 13:50, Werner Robitza wrote:
>
> On Tue, May 12, 2015 at 11:47 AM, Henk D. Schoneveld
> wrote:
>> Would you be so kind to explain why to NOT use the crf option?
>
> CRF is essentially a constant quality mode, which results in variable
&g
Verstuurd vanaf mijn iPhone
> Op 12 mei 2015 om 11:31 heeft Werner Robitza het
> volgende geschreven:
>
>> On Tue, May 12, 2015 at 1:25 AM, Joel Lopez wrote:
>> Can I add a few lower versions to the mix and a higher one?
>
> Yes, you should do that.
>
>> Can I realign the keyframes of the
> On 08 May 2015, at 14:08, Moritz Barsnick wrote:
>
> On Fri, May 08, 2015 at 13:24:07 +0200, Henk D. Schoneveld wrote:
>>> On 06 May 2015, at 22:20, yogev ch wrote:
>>> *ffmpeg -i in.mp4 -f srt -i subs.srt -c:v copy -c:a copy -c:s mov_text
>>> out.mp4
> On 06 May 2015, at 22:20, yogev ch wrote:
>
> I'm trying to embed subtitles I wrote to a movie I created.
> I'm using *ffmpeg* version: *ffmpeg-20150418-git-edbb9b5-win64-static* with
> the command:
> *ffmpeg -i in.mp4 -f srt -i subs.srt -c:v copy -c:a copy -c:s mov_text
> out.mp4* I saw here
> On 02 May 2015, at 22:32, Anatol wrote:
>
> Henk,
> Live streaming, not files.
OK, I was thinking with options as pause and go back in time, but you only
intend linear streaming.
Sorry for the misunderstanding.
>
> On Sat, May 2, 2015 at 10:32 PM, Henk D. Schoneveld
>
> On 02 May 2015, at 21:11, Anatol wrote:
>
> Henk,
> Its a real problem, if the streams are un-aligned, the playback gets into
> jump-forward-backward mood.
If you create a 5min source file and split in 5 1 minute chunks with the help
of the hls function of ffmpeg.
Then create 3 other quality
rent for different output streams. I have seen this very often using the
> "tee" output
>
>
>
>
> On 5/2/15 1:43 PM, Henk D. Schoneveld wrote:
>>> On 02 May 2015, at 11:38, Anatol wrote:
>>>
>>> I don't think that 'k
tolerated by the CDN providers and Apple HLS
>>> validation tools.
>>> Therefore the source live stream can be used in an adaptive-bitrate sets,
>>> IF the other streams match their key frames.
>>> By the way Wowza has this option ("keep Source key frames"
e source stream.
Hope it helps.
>
> On Sat, May 2, 2015 at 2:48 AM, Henk D. Schoneveld
> wrote:
>
>>
>>> On 01 May 2015, at 20:43, Haris Zukanovic
>> wrote:
>>>
>>> Indeed force-ing keyframes at certain positions is meant to keep multiple
sult
I P or B frame is the result. Your source is h264 already, so I think you’ll
rescale and re-encode to achieve that. The calculation has to be done. Knowing
in advance that it will be en I P or B frame won’t make any difference in the
amount of calculations in my opinion.
> On May 1
> On 01 May 2015, at 13:06, Haris Zukanovic wrote:
>
> Is the decision about exactly which frame to make an IDR frame made in x264
> or ffmpeg?
In general I-frames are placed at scene-changes, this can happen random.
Additionally you can can force an I-frame every arbitrary amount of frames by
On 20 Apr 2015, at 19:09, James Lee wrote:
> Hi,
>
> Does ffmpeg can only embed mov_text subtitle format for mp4?
> Srt or ass doesn't work.
> ffmpeg -i vid.mp4 -f ass -i vid.ass -c:v copy -c:a copy -c:s ass subtitle.mp4
> ffmpeg -i vid.mp4 -f srt -i vid.srt -c:v copy -c:a copy -c:s srt subtitl
On 18 Apr 2015, at 23:07, Sandro Henriques wrote:
> Hello,
>
>
>
> I am looking for someone who can help me with live streaming h264 quality
> adjustments. I have been trying for some time but can't seem to strike a
> good balance between bandwidth and quality. I am willing to pay for it.
>
On 03 Apr 2015, at 10:49, sriram wrote:
> Hi Everyone,
>
> Has anyone built a distributed video transcoding service using ffmeg? I am
> interested to know if there any publicly available information about it or
> if you can share more information about it. Also, I would like to know how
> most
On 09 Feb 2015, at 07:32, jarhead4067 wrote:
> I'm a long-time developer/noob to FFMpeg, so bear with me. I've got a
> requirement for a system to split video files into thumbnails (1 thumbnail
> per second of video). The input video format will be all over the place
> (i.e. .mp4, .flv, etc),
X264 is NOT the same as H264.
H264 is an encoding standard.
X264 is a program or library to encode to the H264 standard.
It’s not just “Name” slightly changed.
On 12 Jan 2015, at 19:06, v...@gmx.ca wrote:
> On Monday, January 12, 2015 at 12:33 PM, c...@kruemel.org wrote:
>>> I doubt the TV statio
On 12 Jan 2015, at 18:33, c...@kruemel.org wrote:
>> I doubt the TV stations use x264,
>
> I thought DVB-S2 (HD satellite television) is quite commonly using H.264...
> But that is probably off-topic on this list.
H264 is the standard and x264 is a program or library, part of ffmpeg, but
there
On 09 Jan 2015, at 10:25, c...@kruemel.org wrote:
>>> Sorry, I don't get the question. Does that sound a stupid idea?
>> If you want to compare then you should use the same, original source for
>> each encoder. As far as I can tell you're making your H.265 video from
>> your H.264 video which int
On 09 Jan 2015, at 10:25, c...@kruemel.org wrote:
>>> Sorry, I don't get the question. Does that sound a stupid idea?
>> If you want to compare then you should use the same, original source for
>> each encoder. As far as I can tell you're making your H.265 video from
>> your H.264 video which int
On 24 Nov 2014, at 15:40, wrote:
> If you mean "-b:v 1000k", ffmpeg doesn't allow me to run 2-pass without it.
> Is there another way to get CBR with ffmpeg?
I think you should remove the min and maxrate:v options, you don’t use them in
mencoder either
>
> P. S. Thanks for your very quick an
On 24 Nov 2014, at 21:01, n...@email.cz wrote:
> On 2014-11-24 15:30, James Darnley wrote:
>> You are setting VBV options for ffmpeg and not in mencoder (and forcing
>> CBR at that) do I'm not surprised you get different output.
>
> I think this is not the source of the problem: I saw the same b
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
On 23 Oct 2014, at 19:13, marsupilami wrote:
> Hello,
>
> I'm experiencing a weird problem which I will try to describe in the
> following post.
>
> Currently, I'm writing a perl script for automatic encoding of MPEG-TS files
> using ffmpeg and x264. I'm having ffmpeg apply video filters like
if the one time investment in thinking is more costly.
>
> On Wed, Oct 1, 2014 at 12:21 PM, Henk D. Schoneveld
> wrote:
>
>> Some additional things to consider.
>>
>> Perofrm some short tests, with a 1000 frames file, try with threads 1,
>> threads 2, threa
send a 1000frames file, I’m happy to test te results for the
mentioned Celeron.
Henk
On 01 Oct 2014, at 04:07, Ryan M wrote:
> It is definitely something to think of/consider. Thanks for the input.
>
> On Mon, Sep 29, 2014 at 2:14 PM, Henk D. Schoneveld
> wrote:
>
>> Siz
ce runs the X and another instance runs the Y symlinks directory.
>
>
> On Mon, Sep 29, 2014 at 11:15 AM, Henk D. Schoneveld
> wrote:
>
>> Why wouldn’t it be realistic ?
>> Have a look at https://code.google.com/p/ppss/ to distribute jobs over
>> the amount o
a few more fps out of it. If stepping up
> to Xeon allows ~40fps like Sean said then it is probably worth it. Thank
> you very much for the input.
>
> On Sun, Sep 28, 2014 at 7:23 AM, Henk D. Schoneveld
> wrote:
>
>>
>> On 28 Sep 2014, at 13:13, Henk D. Schonevel
On 28 Sep 2014, at 13:13, Henk D. Schoneveld wrote:
>
> On 26 Sep 2014, at 18:36, Ryan M wrote:
>
>> I am putting together hardware to encode a large and ever growing catalog
>> of video using ffmpeg/x264. Much of the source video is 1080p ProResHQ.
>> Currently
On 26 Sep 2014, at 18:36, Ryan M wrote:
> I am putting together hardware to encode a large and ever growing catalog
> of video using ffmpeg/x264. Much of the source video is 1080p ProResHQ.
> Currently I have a box with a Haswell 4770k CPU which gets around 12-15
> fps, I am of course looking t
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