[Libav-user] Setting nclc tags

2022-07-31 Thread Thomas Wilshaw
Hi, I'm working on a video editor that uses ffmpeg to encode output renders and I'm having some trouble properly tagging .mov files. Specifically I want to set the nclc color tags so that QuickTime and other players will properly display the files. If I generate a file with the following ffmpeg c

Re: [Libav-user] Transcode with the some properties

2019-11-04 Thread Thomas
В сообщении от Monday 04 November 2019 14:22:32 Boris написал(а): > Le lun. 4 nov. 2019 à 11:47, Andrew Randrianasulu > a écrit : > > > В сообщении от Monday 04 November 2019 12:29:10 Boris написал(а): > > > Hello, > > > I want to transcode video with exactly the same properties of the input > >

[Libav-user] HLS-decoding question

2019-06-01 Thread Thomas Schmiedl
ls::stream::parse_stream_info" in https://github.com/clark15b/xupnpd2/blob/master/plugin_hls_common.cpp by "parse_playlist" in https://github.com/FFmpeg/FFmpeg/blob/master/libavformat/hls.c? Thanks and regards, Thomas ___ Libav-user mailing list Li

[Libav-user] HLS-decoding question

2019-05-26 Thread Thomas Schmiedl
HLS streams from https://www.mall.tv/zive). Unfortunately, the original author does not answer anymore. My idea is to use the ffmpeg libs for the correct HLS-processing for https://www.mall.tv/zive in xupnpd2. I hope someone could help me to integrate this. Thanks and regards, Thomas

Re: [Libav-user] Need help on encoding

2017-05-11 Thread Thomas
your Metadata after encoding to the encoded frame. But I do not have a solution how to do it exactly, it may also depend on the container format you use. A long time a go I'd had a ffmpeg project and I must also put some extra data to every frame and if I remember correctly, I put it in

Re: [Libav-user] RTP H.264 private data

2015-05-06 Thread Thomas Volkert
On 05/05/2015 11:56 PM, Info || Non-Lethal Applications wrote: Thomas, thanks for your quick response. On 05 May 2015, at 23:25, Thomas Volkert wrote: Am 05.05.2015 um 22:43 schrieb Info || Non-Lethal Applications: Hi guys, I’m sending an H.264 stream from the Mac to an iOS device using

Re: [Libav-user] RTP H.264 private data

2015-05-06 Thread Thomas Volkert
amp;options, "cname", streamName.c_str(), 0) : avformat_write_header(rtpFormatContext, &options) : Check with wireshark und you will see the string inside a RTCP packet. Best regards, Thomas. ___ Libav-user mailing list Libav-user@ffmpeg.org h

Re: [Libav-user] RTP H.264 private data

2015-05-05 Thread Thomas Volkert
transmission delay. Best regards, Thomas. ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user

Re: [Libav-user] RTP packets with payload different to 96

2015-03-27 Thread Thomas Volkert
9, -1}," Am I right? Yes. My file is H.264 and I do not transcode anything. Is there any way to send packets with payload different to 96 without transcoding ? No, for H.264 you have to use a payload ID from the dynamic range. Best regards, Thomas.

Re: [Libav-user] RTP packets with payload different to 96

2015-03-27 Thread Thomas Volkert
9, -1}," Am I right? Yes. My file is H.264 and I do not transcode anything. Is there any way to send packets with payload different to 96 without transcoding ? No, for H.264 you have to use a payload ID from the dynamic range. Best regards, Thomas. ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user

Re: [Libav-user] Would anyone find an OS X / Cocoa / Swift wrapper for Libav useful?

2015-01-25 Thread Thomas Worth
> > > Anyway, in this case I got upset because someone was arguing for > > questionable Apple vendor-lockin > > For a Mac app, yeah, I’d love a wrapper native to the platform I’m working > on. It changes nothing that exists already in the FFmpeg API. It merely > adds an option for those who can ben

Re: [Libav-user] Would anyone find an OS X / Cocoa / Swift wrapper for Libav useful?

2015-01-25 Thread Thomas Worth
> > Perhaps I’m the only one on the planet using Libav on Apple platforms, > though I’m betting I’m not (actually I know I’m not, as a few have > contacted me off-list). Also, it might take some of the headache away from > the Libav devs who don’t use Apple platforms to answer some support > questi

Re: [Libav-user] Encoded Date in MOV Container

2013-11-24 Thread Thomas Freudenreich
out 3 years old :-( Thomas -Ursprüngliche Nachricht- Von: libav-user-boun...@ffmpeg.org [mailto:libav-user-boun...@ffmpeg.org] Im Auftrag von Carl Eugen Hoyos Gesendet: Sonntag, 24. November 2013 19:01 An: libav-user@ffmpeg.org Betreff: Re: [Libav-user] Encoded Date in MOV Container T

Re: [Libav-user] Encoded Date in MOV Container

2013-11-23 Thread Thomas Freudenreich
utput file must be specified -Ursprüngliche Nachricht- Von: libav-user-boun...@ffmpeg.org [mailto:libav-user-boun...@ffmpeg.org] Im Auftrag von Carl Eugen Hoyos Gesendet: Samstag, 23. November 2013 16:18 An: libav-user@ffmpeg.org Betreff: Re: [Libav-user] Encoded Date in MOV Contain

[Libav-user] Encoded Date in MOV Container

2013-11-22 Thread Thomas Freudenreich
the "Quicktime-Movie-Atoms-Routines" so that I may add some code for that. Detailed description is in Figure 2 - 3 here (or search for 1904): https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFCha p2/qtff2.html#//apple_ref/doc/uid/TP4939-CH204-SW1

Re: [Libav-user] How to decode arbitrary frame

2013-07-19 Thread Thomas
Am 19.07.2013 02:26, schrieb James Board: *From:* Thomas *To:* "This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter." *Sent:* Thursday, July 18, 2013 8:55 AM *Subject:*

Re: [Libav-user] How to decode arbitrary frame

2013-07-18 Thread Thomas
Am 18.07.2013 14:42, schrieb James Board: I have the doc/examples programs compiled and running. I use the program demuxing.c to decode an AVI file. From the source code, it looks it calls its own subroutine decode_packet() to decode the next video or audio packet, and that subroutine calls avc

Re: [Libav-user] Encoding with variable frame rate

2013-05-21 Thread Thomas Worth
> 1. Does FFmpeg support variable frame rate, or not? If you can playback or re-encode an iPhone video, then yes. MOV/MP4 is _not_ a fixed frame rate format. In other words, there is no "FPS" field/atom in MOV. You set some arbitrary timebase, and the stts atom contains the durations for each of t

Re: [Libav-user] Best way to create a fractional ms timer?

2013-04-01 Thread Thomas Sharpless
On Mon, Apr 1, 2013 at 6:18 AM, Mike Versteeg wrote: > @Rene: not that I know, and 1 ms will be very unreliable. > > @Nicolas: Yes, and this is often said. However these days using a timer > you get very reliable and stable periods with hardly any jitter. Unless > your period needs to be (on aver

Re: [Libav-user] makefile problem on win32 MinGW

2013-03-30 Thread Thomas Sharpless
Thanks Carl I solved the problem by replacing the git clone with a release tarball -- I have no need to follow the latest snapshot. -- Tom On Sat, Mar 30, 2013 at 2:29 AM, Carl Eugen Hoyos wrote: > Thomas Sharpless writes: > > > ./configure: line 4652: git: command not found >

[Libav-user] makefile problem on win32 MinGW

2013-03-29 Thread Thomas Sharpless
I have built older versions of ffmpeg on my Windows system using MinGW, but the latest snapshot refuses to build. After a bit of fuss I got a configure command to (almost) run to completion: $ ./configure --prefix=.. --enable-gpl --enable-version3 --disable-programs > --d > isable-doc --enable-li

[Libav-user] setting up x264

2013-03-27 Thread Thomas Sharpless
I know the interface between libavcodec and libx264 is such that you can pass at least some of the native x264 option strings, such as preset names, through the opts argument to avcodec_open2(). However it also appears that this is not enough to put the codec into a usable state. Is it spelled ou

[Libav-user] Insert an AVFrame into another AVFrame

2012-10-12 Thread Thomas Seilund
t)); /* * * Code to insert an AVFrame in the frame that the filter currently handles. * */ return ff_draw_slice(link->dst->outputs[0], y, h, slice_dir); } Any help would be appreciated. Thanks Thomas S ___ Libav-user mailing list Libav-user@ff

Re: [Libav-user] Bug in mpegts reader with H.264 video?

2012-09-26 Thread Thomas Worth
On Mon, Sep 24, 2012 at 8:05 AM, Andrey Utkin wrote: > 2012/9/24 Thomas Worth : >> Thanks. No worries. I'll see if I can track down the owner of the >> media and try to get permission to post it to the list. > > You can also try to forge the faulty file. just make up

Re: [Libav-user] Bug in mpegts reader with H.264 video?

2012-09-24 Thread Thomas Worth
On Mon, Sep 24, 2012 at 6:49 AM, Andrey Utkin wrote: > 2012/9/24 Thomas Worth : >> I just tried it with latest git (ff58480) and the problem remains. >> I'll send you the sample code and MTS file. I would post here, but the >> video belongs to a client so I probably

Re: [Libav-user] Bug in mpegts reader with H.264 video?

2012-09-24 Thread Thomas Worth
On Sun, Sep 23, 2012 at 11:37 PM, Andrey Utkin wrote: > 2012/9/19 Thomas Worth : >> Ok, fine. BUT, once these errors occur, if I try to seek to the >> beginning again the DTS and PTS values are ALWAYS >> -9223372036854775808. It doesn't matter how many times I flus

[Libav-user] Bug in mpegts reader with H.264 video?

2012-09-19 Thread Thomas Worth
I've encountered what seems to be a problem with the mpegts reader. If I read and decode an MTS-wrapped video compressed with H.264, I can get DTS and PTS values just fine. For example: /* within an endless loop */ if(packet.stream_index == video_st_id){ avcodec_de

Re: [Libav-user] Convert MP4 1280x720 to MPG 1280x720

2012-05-30 Thread Thomas H
Hello Michael That did it. Eliminated "ntsc-dvd" and now it works fine. ffmpeg -i MyKitty.mp4 -vf scale=1280:720 -idct h264 -sameq MyKitty.mpg Thanks for your response. Regards Thomas On Tue, May 29, 2012 at 8:29 PM, Thomas H wrote: > Hello Michael > > Thanks for the lin

Re: [Libav-user] Convert MP4 1280x720 to MPG 1280x720

2012-05-29 Thread Thomas H
Media Player. Regards Thomas On Tue, May 29, 2012 at 5:28 PM, Michael Bradshaw wrote: > On Tue, May 29, 2012 at 3:04 PM, Thomas H wrote: >> Hello Carl. >> >> Not sure. >> Tried everything in the Docs and FAQ. >> I searched everywhere and found it on a f

Re: [Libav-user] Convert MP4 1280x720 to MPG 1280x720

2012-05-29 Thread Thomas H
file looks pixilated. Regards Thomas * C:\Users\Thomas\Documents\Blender\cgboorman>ffmpeg -i MyKitty.mp4 -vf scale=1280:720 -idct h264 -sa

[Libav-user] Convert MP4 1280x720 to MPG 1280x720

2012-05-29 Thread Thomas H
=2-31, 6000 kb/s, 90k tbn, 29.97 tbc Output is not of the same quality. I have a suspect it has something to do with the Video, but do not know how to correct this. I have been working on this for about a week and can not figure it out. Regards Thomas

Re: [Libav-user] thread_count = 1 massively breaks reads

2012-03-28 Thread Thomas Worth
On Wed, Mar 28, 2012 at 12:28 AM, Thomas Worth wrote: > What has changed in the past couple months that would cause > av_read_frame() to return negative values well before the end of the > file if thread_count is set to 1 for the video? This is the behavior I > get with both MOV a

[Libav-user] thread_count = 1 massively breaks reads

2012-03-28 Thread Thomas Worth
What has changed in the past couple months that would cause av_read_frame() to return negative values well before the end of the file if thread_count is set to 1 for the video? This is the behavior I get with both MOV and MTS files with H.264 compressed video. If I set thread_count to anything high

Re: [Libav-user] A very general question

2012-02-23 Thread Thomas Worth
On Thu, Feb 23, 2012 at 6:11 PM, wrote: > Whats is that?  C-C-C-C-COMBO BREAKER  i have no idea toward this http://en.wikipedia.org/wiki/Killer_Instinct ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user

[Libav-user] Params that influence time scale/duration values in MOV muxer?

2011-12-21 Thread Thomas Worth
I posted this on the FFmpeg list, but got no reply. This is take two. I'm having trouble controlling timing values written to MOV files. Things like timescale and duration values written to the tracks differ from what I'm supplying in the AVCodecContext timescale parameter. For example, if I speci

[Libav-user] Multithreaded decoding delays PTS by num of threads

2011-11-18 Thread Thomas Worth
I am playing around with multithreaded H.264 decoding with git from a few days ago, but I noticed that frames are returned with a delay equal to the number of threads assigned to the decoder context. The way I can tell if I am getting decoded frames is by checking got_picture_ptr, which works even

[Libav-user] Avid DNxHD 444

2011-10-25 Thread Thomas Worth
DNxHD 444 has been mentioned quite a few times around L.A. Are there any plans to support it in Libav/FFmpeg? Baptiste? ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user

[Libav-user] What's the difference between prores_gpl and prores_lgpl?

2011-10-11 Thread Thomas Worth
I'm happy to see that ProRes decode support is now available. That's awesome. What's the difference between the GPL and LGPL versions? The only difference I can see (from avconv -codecs) is one supports "direct rendering method 1" and the other doesn't. That same one is labeled "iCodec Pro." Anxi

[Libav-user] Encode jpeg to video

2011-07-05 Thread Thomas Mair
ffmpeg that offer these capabilities? Thanks, Thomas ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user

Re: [Libav-user] Detect if an MTS file is interlaced or not?

2011-06-12 Thread Thomas Worth
On Wed, Jun 8, 2011 at 2:13 AM, Thomas Worth wrote: > I'd like to know if there's a way to tell if an MTS file is > interlaced, preferably without having to decode it first. The problem > I have is that libav always returns 59.94 for the frame rate of > interlaced NTSC s

Re: [Libav-user] Sending encoded frames over the network via RTP?

2011-05-16 Thread Thomas
Hello, I'm trying to reproduce the above, but when I try to open my stream with mplayer I get: mplayer rtp://127.0.0.1:4 Stream not seekable! Stream not seekable! Stray packet (seq[3]=52657 seq=52656, newseq=-1 found at 2) Stray packet (seq[18]=52704 seq=52691, newseq=-13 found at 5) Stray p

[Libav-user] Decoding RTP streams with FFMpeg

2011-04-05 Thread Thomas Mair
packet.size -= len1; decoded_buf += audio_buf_size; read += audio_buf_size; } } } I have tried to solve the problem for several days now but I could not come up with a solution. When i use the same code to play a local video file the video playba