Re: [FFmpeg-user] Build FFmpeg4.0 with opencl

ample <https://stackoverflow.com/questions/47505257/ffmpeg-impossible-to-convert-between-the-formats-supported-by-the-filter> on stackoverflow on how to initialize the OpenCL platform before use. On 25 April 2018 at 21:23, Dennis Mungai <dmng...@gmail.com> wrote: > With OpenCL en

Re: [FFmpeg-user] easy question

Retry with the rstream option: ffmpeg -re -i rtsp://admin:admin@192.168.1.234/ch0_0.h264 -an -c:v copy -f segment -segment_time 60 -segment_wrap 10 -reset_timestamps 1 result%d.mp4 On 11 May 2018 at 00:00, Good Developer wrote: > I hope it is an easy question

Re: [FFmpeg-user] FFMpeg configure issue

You need to install nasm. On 5 May 2018 at 22:03, Sundar Ranganathan < sundar.ranganat...@reflexisinc.com> wrote: > Folks, > I am up against it. The message ./configure comes up with is: > --- > nasm/yasm not found or too old. Use --disable-x86asm for a crippled build. > > If you think

Re: [FFmpeg-user] H265 conversion hardware ?

On MacOSX? There's videotoolbox, but I'm yet to confirm if HEVC accelerated encoding works with it.. On 18 May 2018 at 23:08, Gabriel Zachmann wrote: > Does anybody know of any hardware that would work with my MacBook Pro and > speed up conversion to H265 (HEVC) ? > > I

Re: [FFmpeg-user] H265 conversion hardware ?

). On 18 May 2018 at 23:42, Dennis Mungai <dmng...@gmail.com> wrote: > On MacOSX? > > There's videotoolbox, but I'm yet to confirm if HEVC accelerated encoding > works with it.. > > On 18 May 2018 at 23:08, Gabriel Zachmann <z...@cs.uni-bremen.de> wrote: > >> Does

Re: [FFmpeg-user] VAAPI encoding error

You're using a hwupload instance without a -hwaccel method or device selected. You should add -hwaccel vaapi to the ffmpeg options (before declaring the input at -i). On Mon, Jun 18, 2018, 23:38 Victor Helmholtz wrote: > Hi, > > I am trying to encode raw yuv file using VAAPI hardware

Re: [FFmpeg-user] Green line with vaapi scaling

Can you retest with git head? Build FFmpeg from source and retest. At the moment, you're using FFmpeg 3.3.1-1. On 13 June 2018 at 21:22, André Hänsel wrote: > When I scale with scale_vaapi, it results in a green line at the bottom of > the image, see attachment. > > Command line: > ffmpeg

Re: [FFmpeg-user] Getting error while building FFMPEG extension for exoplayer android

Upload the config.log for inspection. On 13 June 2018 at 07:55, Anand Singh wrote: > Hi, > > i am getting error while building FFMPEG extension for exoplayer, i > executed this command as provided in the documentation : > > ./configure \ > --libdir=android-libs/armeabi-v7a \ >

Re: [FFmpeg-user] Nvenc Fails with Cannot Init CUDA

Hello, Can you provide the output of: ffmpeg -buildconf And how you installed the NVIDIA driver? And what platform/OS you're on? For linux, run: lsb_release -a Normally, with the installation of the NVIDIA driver through the distribution's package manager (yum, apt, dnf, etc), it should

Re: [FFmpeg-user] Crash on DAR/SAR source change while HW transcoding

In production, drop this: -hwaccel cuvid -c:v mpeg2_cuvid There's a reason mpv devs do not recommend cuvid, in particular. https://github.com/mpv-player/mpv/commit/dbef5b737e2f994f02923c8214cba368b663a655 On 5 June 2018 at 11:55, Mitja Pirih wrote: > Hi, > > I am transcoding a live channel

Re: [FFmpeg-user] Crash on DAR/SAR source change while HW transcoding

And with CUVID, in particular: It's decoders are very fragile. You did mention that disabling hwaccel (cuvid?) raised your processor load significantly, correct? Can you confirm whether you're applying any filters down the encoder pipeline? Also, what processor are you using? On 6 June 2018 at

Re: [FFmpeg-user] nasm/yasm not found or too old. Use --disable-x86asm for a crippled build. error message

Neither nasm nor yasm could be found on your platform. Install either (i'd recommend nasm) and retry. On 27 June 2018 at 19:03, robert warren zugates wrote: > enclosed is the log from the latest ffmpeg file. > > > ___ > ffmpeg-user mailing list >

Re: [FFmpeg-user] how to use Intel qsv codec for ffmpeg 4.0

Also, one question to the OP: What version/variant of the Media SDK did you use to build FFmpeg? Is it the one issued in the licensed Media SDK or the opensource iMSDK (see https://github.com/Intel-Media-SDK/MediaSDK)? Either way, you may need to insert a hwupload filter into the video filters

Re: [FFmpeg-user] how to use Intel qsv codec for ffmpeg 4.0

Hey, Any feedback on the solution posted above? On Wed, Jun 20, 2018, 09:03 Dennis Mungai wrote: > Also, one question to the OP: > > What version/variant of the Media SDK did you use to build FFmpeg? > Is it the one issued in the licensed Media SDK or the opensource iMSDK

Re: [FFmpeg-user] Outputting ffmpeg's tee muxer content to a named pipe

I understand. I realized my mistake. Your suggestion on the ticket worked. On 26 July 2018 at 22:10, Carl Eugen Hoyos wrote: > 2018-07-26 22:04 GMT+02:00, Dennis Mungai : > > [f=mp4:movflags=frag_keyframe+empty_moov] pipe:1 > test_channel.mp4" > > As explained el

Re: [FFmpeg-user] ffmpeg 4.0 fails to transcoding one 4k clip

Also, can you provide the output of vainfo? On 27 July 2018 at 09:27, Yang Zhang wrote: > It will cause you get the "partial HW acceleration" error message > always. there is a patch fix the problem I remember, but I couldn't > find the patch in the latest FFmpeg > > On 7/27/18, qw wrote: > >

[FFmpeg-user] A question on NVENC's A53CC support

Hello there, According to this commit https://git.videolan.org/?p=ffmpeg.git;a=commit;h=5a88e8c36581fed09c7db6dc7229f1fd9ab5559d , A53CC support was added to the NVENC encoder. For lavc, its' also enabled by default: https://ffmpeg.org/pipermail/ffmpeg-devel/2016-September/199200.html Is it

Re: [FFmpeg-user] RES: Best Nvidia professional cards for li e transcoding

to the P6000 also > Thanks > > Any other models? > > -Mensagem original- > De: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] Em nome de Dennis > Mungai > Enviada em: quinta-feira, 23 de agosto de 2018 13:27 > Para: FFmpeg user questions > Assunto: Re: [FF

[FFmpeg-user] A question on the Quadro P6000 and maximum simultaneous NVENC encodes in FFmpeg

Hello there, For users with this specific card (and FFmpeg installed), kindly clarify on the following: (a). How many simultaneous encoder sessions can you run on this card? (b). Have you ran into any issues, such as stuttering and dropping streams with multiple concurrent encodes? I ask

Re: [FFmpeg-user] Best Nvidia professional cards for li e transcoding

Hello there, Does your budget allow for a newer line of NVIDIA GPUs, such as the Quadros based on Pascal? If so, get the Quadro P6000. Plenty of VRAM, + all the NVENC encoder features you may need, such as HEVC high-depth encoding and vastly better encoder performance overall. Refer to this:

Re: [FFmpeg-user] RES: A question on the Quadro P6000 and maximum simultaneous NVENC encodes in FFmpeg

--- > De: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] Em nome de Dennis > Mungai > Enviada em: quinta-feira, 23 de agosto de 2018 13:54 > Para: FFmpeg user questions > Assunto: [FFmpeg-user] A question on the Quadro P6000 and maximum > simultaneous NVENC encodes in FFmpeg > >

Re: [FFmpeg-user] RES: A question on the Quadro P6000 and maximum simultaneous NVENC encodes in FFmpeg

gt; it. > > On Fri, Aug 24, 2018 at 5:51 AM Dennis Mungai wrote: > > > No. > > > > This is as tested on the Tesla P100. > > > > On Fri, 24 Aug 2018 at 00:26, Pedro Daniel Costa < > > portaln...@outlook.com.br> > > wrote: > > > &

Re: [FFmpeg-user] RES: A question on the Quadro P6000 and maximum simultaneous NVENC encodes in FFmpeg

ec. so there is -hwaccel nvdec is a wrong option. > > On 8/24/18, Dennis Mungai wrote: > > For full GPU transcoding, shouldn't -hwaccel be nvdec? > > > > FFmpeg's documentation on this is missing, but for NVENC, the decoder > > should be set to nvdec. > > > >

Re: [FFmpeg-user] RES: A question on the Quadro P6000 and maximum simultaneous NVENC encodes in FFmpeg

are > acceleration transcoding. other channels use the GPU encoding only. this > should can let you transcoding more channels. and fix the stutter problem. > > You can use "nvidia-smi dmon" to check the usage of NVDEC/ENC chips. > > On Fri, Aug 24, 2018 at 6:02 AM

Re: [FFmpeg-user] RES: A question on the Quadro P6000 and maximum simultaneous NVENC encodes in FFmpeg

h264_nvenc ... > > > > On 8/24/18, Dennis Mungai wrote: > > Is it possible to disable hwaccel decode explicitly in an FFmpeg > instance? > > > > Say, -hwaccel none such that no hardware-accelerated decoder instance is > > initialized on launch? > >

Re: [FFmpeg-user] RES: Nvidia professional cards for li e transcoding

DA® Cores 5,120### > > # > > Double-Precision > > Performance 7 TFLOPS 7.8 TFLOPS > > Single-Precision > > Performance 14 TFLOPS 15.7 TFLOPS > > Tensor > > Performance 112 TFLOPS 125 TFLOPS > > GPU Memory 16 GB HBM2 >

Re: [FFmpeg-user] Can I get some help converting .sec files?

Also, the output of: ffprobe -i "path-to-sec-file" That way we can tell the codec type and container details of the file you're encoding. On Mon, 27 Aug 2018 at 23:28, Paul B Mahol wrote: > On 8/27/18, LH wrote: > > Okay, can we go back a step. How do I get the data that you want? After I >

Re: [FFmpeg-user] Failed creating CUDA context for NVENC

You mentioned 30 streams. And more cause this to "fail". Perhaps the Quadro line has a maximum simultaneous encoder limit of 30, similar to the GeForce's limit of 2? On Wed, Jul 18, 2018, 19:28 Yugandhar Veeramachaneni wrote: > Hello everyone, > > I'm currently using an NVIDIA Quadro P4000 GPU

Re: [FFmpeg-user] Using a AMD Radeon RX5xx with ffmpeg

Hello there, Here's something you can try: ffmpeg -init_hw_device vaapi=amd:/dev/dri/renderD129 -hwaccel vaapi -hwaccel_output_format vaapi -hwaccel_device amd -filter_hw_device amd -i fs_experiental_method.avi -vf 'format=nv12|vaapi,hwupload' -y -c:v h264_vaapi -qp:v 21 -sei

Re: [FFmpeg-user] Failed creating CUDA context for NVENC

Also, see this list: https://developer.nvidia.com/video-encode-decode-gpu-support-matrix You have the Quadro P4000, which is artificially crippled to ~2 concurrent sessions according to the documentation above. On 18 July 2018 at 22:34, Dennis Mungai wrote: > NVENC runs on a discrete sili

Re: [FFmpeg-user] Using a AMD Radeon RX5xx with ffmpeg

flags=2' > [graph 0 input from stream 0:0 @ 0x55986d15f2c0] Setting 'frame_rate' to > value '30/1' > [graph 0 input from stream 0:0 @ 0x55986d15f2c0] w:1920 h:1080 > pixfmt:yuv420p tb:1/30 fr:30/1 sar:0/1 sws_param:flags=2 > [AVFilterGraph @ 0x55986d196c40] query_formats: 3 queri

Re: [FFmpeg-user] Using Hardware Accelerated Encoder Produce Bigger File

Also, related. Is there a way to determine encoder defaults? Does ffmpeg have such an option to print out encoder defaults? On Tue, Sep 11, 2018, 16:02 Moritz Barsnick wrote: > On Tue, Sep 11, 2018 at 16:38:37 +0430, Ali Shirvani wrote: > > Is this variation in output size normal? or should I

[FFmpeg-user] Generating multiple HLS renditions and a master playlist results in unpredictable behavior.

Hello, and good morning. I have ran into a problem with the HLS muxer, as shown below. I want to generate three HLS renditions from a single input file, and a master playlist pointing to the renditions. Here's the command line used: ffmpeg -loglevel debug -threads 4 -filter_complex_threads 4

Re: [FFmpeg-user] --no-sao

Here is how it works: When FFmpeg is built with libx265 support, options passed to the underlying encoder must be passed wrapped in the documented syntax. For example, libx264 expects -x264opts. However, what you're reading online is for the command line x265 utility, which takes in and

Re: [FFmpeg-user] --no-sao

Hello there, That's not the correct syntax. Pass these arguments as: -x265-params "--no-sao:fps=24000/1001:p=veryslow:" Make sure all options are in form key=value with value set to 1 if it's a boolean option. On 5 April 2018 at 11:11, Daniel wrote: > Hello, > I

Re: [FFmpeg-user] --no-sao

Correction: Based on your snippet: /usr/local/Cellar/ffmpeg/3.4.2/bin/ffmpeg -stats -loglevel 24 -i surce.mkv -map 0:a -map 0:v:0 -c:v libx265 -crf 20 -c:s copy -c:a copy -x265-params "no-sao" -ss 5000 -t 5 destination.mp4 On 5 April 2018 at 11:29, Dennis Mungai <dmng...@gma

Re: [FFmpeg-user] Fwd: i am having a technical problem, please help

This is not the place to post such emails. For one, you're launching FFmpeg through a wrapper, and two, how FFmpeg was built on your platform is not known. Run the same directly via FFmpeg, and post your results here, including the build configuration of the FFmpeg binary you're using. On Fri,

Re: [FFmpeg-user] ffmpeg-3.4.2 config error?

Yes, it's bad. Install nasm. If you're on Mac OSX 10.13.3, use macports to install the package. After installation, it's as simple as: $ sudo port install nasm See https://www.macports.org/ On 5 April 2018 at 13:03, Jeffery Durand wrote: > Hi, > > ./config gave

Re: [FFmpeg-user] Hardware acceleration

Hello, Can you provide the output of vainfo? On 18 April 2018 at 23:00, pilot constatinus wrote: > Hi, i was recently trying out vaapi acceleration in ffmpeg. It works well > with h264 hevc and vp8, but not with vp9. The output i get is: > > ffmpeg -vaapi_device

Re: [FFmpeg-user] Timestamp and missing frame when converting 4K h.264 to h.265

Hello, Gralfus. This is how you should provide a sample for use: https://www.ffmpeg.org/bugreports.html Typically, extract the sample using a tool such as dd. Take this snippet (quoted from the link above): dd if=sample-file of=small-sample-file bs=1024 count=1 Then you would upload the

Re: [FFmpeg-user] Support request - configuring ffmpeg for YouTube Live 60fps

April 2018 at 19:43, Stuart Porter <stuart.por...@ctvc.co.uk> wrote: > Thanks Dennis. > > Will VAAPI work on Win7? > > On Wed, 25 Apr 2018, 17:36 Dennis Mungai, <dmng...@gmail.com> wrote: > >> Try this if you can use VAAPI: >> https://gist.github.com/B

Re: [FFmpeg-user] Support request - configuring ffmpeg for YouTube Live 60fps

Try this if you can use VAAPI: https://gist.github.com/Brainiarc7/7b6049aac3145927ae1cfeafc8f682c1 On 25 April 2018 at 19:18, Micael Silva wrote: > Are you using Intel i5, right? Have you checked if is it possible to use > the hardware acceleration encoding? Many

Re: [FFmpeg-user] how to encrypt media file into hls, and decrypt?

Start by referring to HLS' muxer documentation: https://www.ffmpeg.org/ffmpeg-formats.html#hls-2 And from FFmpeg: ffmpeg -hide_banner -h muxer=hls When you're done with the documentation and are still unable to achieve that goal, come back and report the issue you're experiencing. On 15 March

Re: [FFmpeg-user] h264_vaapi missing frames

Hello there, Have you tried using the restream option? ffmpeg -re -i capture_device -vaapi_device /dev/dri/renderD128 -movflags +faststart -vf 'format=nv12|vaapi,hwupload' -c:v h264_vaapi {$encoder_opts} outputfile. Try and report back. On 20 March 2018 at 05:30, Kai Hendry

Re: [FFmpeg-user] Build FFmpeg4.0 with opencl

With OpenCL enablement, I'd like to know what platform you're on. Wndows, a variant of Linux or Mac OSX. From there, we can assist with build issues. On 25 April 2018 at 19:44, Dong QingDan wrote: > Hello. > How are you? > I am trying to compile ffmpeg4.0 with opencl. >

Re: [FFmpeg-user] Which format and vcodec to use for watching live Streaming in Android Mobile

You may want to look into using hls. For usage reference, see: ffmpeg -h muxer=hls On Thu, Nov 1, 2018, 16:38 Abhisek Techie Hi, > Since , ffserver is not supported I configured rtmp module in nginx .But > still want to know which format to use for watching live stream in android > mobile. > >

Re: [FFmpeg-user] A query on using the OpenCL tonemap filter from derived OpenCL device contexts from VAAPI.

I'll correct that and update the question, thanks. On Tue, 6 Nov 2018 at 11:08, Paul B Mahol wrote: > On 11/6/18, Dennis Mungai wrote: > > Hello there, > > > > From this patchwork: > > > https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/8b8b0e2cd26cf1f522c630859fcb

[FFmpeg-user] A query on FFmpeg OpenMAX IL supported backends

Hello guys, From the documentation available on FFmpeg's support for OpenMAX IL, the only backend I can confirm to be officially supported (correct me if I'm wrong) is the library provided for the Raspberry Pi, namely libbcm_host.so and libopenmaxil.so, satisfied by the packages libraspberrypi0

Re: [FFmpeg-user] GPU speed increase

A few observations: The MX150 does not support NVENC, meaning that any NVENC-based hwaccels are out of the window. However, that same laptop is most likely to have Optimus, giving you access to the Intel's Integrated graphics platform from which you can use either QSV or VAAPI for hwaccel

Re: [FFmpeg-user] FFMPEG not using GPU/CUDA

On Wed, Jan 23, 2019, 21:18 Mahmood Naderan Carl, > Please see the make output at https://pastebin.com/BzpEHvjV > > > Regards, > Mahmood > > > > > On Wed, Jan 23, 2019 at 9:44 PM Mahmood Naderan > wrote: > > > > > Thanks for the quick reply. The config log can be seen at > >

Re: [FFmpeg-user] FFmpeg is shutting down when concating segmented files and outputting to UDP

On Tue, Jan 15, 2019, 07:38 Sagar Lakhani hello, > I am new to this community, i have used ffmpeg in my server in which i have > live streams and i am segmenting them and then storing after a while i > concat the segmented files and then output these to udp. > Firstly i got a problem of open file

Re: [FFmpeg-user] Ffmpeg Nvenc GPU decode , set hwaccel_device not work

On Tue, 25 Dec 2018 at 07:22, dd wrote: > > Very magical with your guide, it works well. > Thanks a lot for your quickly reply, I am very grateful. > Merry Christmas! > > > > > > > > > > > > > > > > > At 2018-12-25 02:35:35, &qu

Re: [FFmpeg-user] Ffmpeg Nvenc GPU decode , set hwaccel_device not work

On Mon, 24 Dec 2018 at 21:23, dd wrote: > Dear my friend, > We replace cpu with gpu to ffmpeg recently, I set the gpu device no, but > it still use default device 0. > As the following problem Code: > ffmpeg -hwaccel_device 2 -hwaccel cuvid -i a.mp4 -vf > “scale=1080:720,overlay=()” -c:v

Re: [FFmpeg-user] Merging VP9 files, without audio

Hello there, I'll answer the second part, concerning GPU acceleration: First, consider what platform you're on. With Windows, you have access to QuickSync (Intel), NVENC (Nvidia Kepler+) and AMD's VCE through AMF (On AMD GCN-class hardware). On Linux, you have access to VAAPI (on Intel and to a

Re: [FFmpeg-user] How to use nvida GPU

Hey there, Take a look at this: https://gist.github.com/Brainiarc7/988473b79fd5c8f0db54b92ebb47387a Do reach out if you need further assistance. On Mon, Nov 26, 2018, 16:48 hans gerte Hi, need some help. i read a lot of forums and googled it, but i got more > confused. > i have a Ubuntu 14.04

Re: [FFmpeg-user] When using h264_cuvid, memory allocation differs between different nvidia GPUs

Hello there, On the system using more VRAM, can you lower the -surfaces value from 8 to ~6? Also, in place of h264_cuvid, use nvdec instead. Example: ffmpeg -c:v nvdec -surfaces 8 -f mpegts -i https://samples.ffmpeg.org/V-codecs/h264/HD-h264.ts -vcodec libx264 -preset veryfast -crf 23 -c:a

Re: [FFmpeg-user] AES Enc with segmenter

Go through the output of: ffmpeg -h muxer=hls What build of FFmpeg are you using? Note that on this mailing list, only git head is supported. -Dennis. On Fri, 30 Nov 2018 at 22:19, bra vo wrote: > I would like to segment a live mpegts udp stream into hls and there are two > constraints: > >

Re: [FFmpeg-user] how to build tools/zmqsend

On Wed, 19 Dec 2018 at 16:35, qw wrote: > Hi, > > > I build zeromq-4.2.5, and build ffmpeg with --enable-libzmq. How to build > tools/zmqsend? > > > Thanks > > > Regards > > > Andrew > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org >

Re: [FFmpeg-user] libass cannot be detected in centos 7

On Mon, 28 Jan 2019 at 00:17, Carl Zwanzig wrote: > On 1/27/2019 1:08 PM, Reindl Harald wrote: > > well, when i started compile something from source i did my homework 15 > > years ago where internet was expensive > > Cool, when I started building-from-source most software was distributed on >

Re: [FFmpeg-user] libass cannot be detected in centos 7

On Sun, Jan 27, 2019, 23:56 Reindl Harald > > Am 27.01.19 um 21:38 schrieb Dennis Mungai: > > Hello there, > > > > I'm building ffmpeg on centos 7 and one issue keeps cropping up: > > > > libass. Yes, its' installed. But ffmpeg's ./configure stage won't de

Re: [FFmpeg-user] libass cannot be detected in centos 7

tion: rpm -q libass-devel libass-devel-0.13.4-6.el7.x86_64 Carl, thanks for the assistance. I'll install the missing package and retest. On Mon, 28 Jan 2019 at 00:06, Reindl Harald wrote: > > > Am 27.01.19 um 22:03 schrieb Dennis Mungai: > > On Mon, Jan 28,

Re: [FFmpeg-user] libass cannot be detected in centos 7

On Mon, Jan 28, 2019, 00:02 Reindl Harald > > Am 27.01.19 um 21:59 schrieb Dennis Mungai: > > On Sun, Jan 27, 2019, 23:56 Reindl Harald >> > >> Am 27.01.19 um 21:38 schrieb Dennis Mungai: > >>> Hello there, > >>> > >>>

Re: [FFmpeg-user] libass cannot be detected in centos 7

On Mon, 28 Jan 2019 at 00:09, Carl Eugen Hoyos wrote: > 2019-01-27 22:03 GMT+01:00, Dennis Mungai : > > > 1. pkg-config --libs --cflags freetype2 > > -I/usr/include/freetype2 -I/usr/include/libpng15 -lfreetype > > > > 2.pkg-config --libs --cflags frib

Re: [FFmpeg-user] Problem when using scale_cuda filter

On Thu, 21 Mar 2019 at 05:25, Александр via ffmpeg-user < ffmpeg-user@ffmpeg.org> wrote: > Hello, I am trying to do full hardware video transcoding with scaling. > > Here is my console command: > ffmpeg -hwaccel nvdec -hwaccel_output_format cuda -i "input.mp4" -vf > scale_cuda=-2:360 -c:v

Re: [FFmpeg-user] What havens if ffmpeg runs out of memory?

On Thu, 4 Apr 2019 at 01:52, Nick wrote: > I started like 6 4k to dash(mp4) codings on a machine with around 34 GB > RAM. In addition, after coding I used ffprobe to analyze them per frame. > (everything parallel using docker instances) > At the end I have weird erros. Some chunks in the middle

Re: [FFmpeg-user] Compiling ffmpeg version n3.4.5

put of > > > > $ PKG_CONFIG_PATH=/usr/local/src/ffmpeg/lib/pkgconfig pkg-config > --cflags --libs freetype2 > > -I/usr/include/freetype2 -I/usr/include/libpng15 -lfreetype > > On Thu, Apr 4, 2019 at 12:35 PM Moritz Barsnick wrote: > > > On Thu, Apr 04, 2019 at 09:39

Re: [FFmpeg-user] Compiling ffmpeg version n3.4.5

On Thu, Apr 4, 2019, 09:27 Shay Nagar wrote: > Hello, > > I trying to compile ffmpeg like this > "PKG_CONFIG_PATH=/usr/local/src/ffmpeg/lib/pkgconfig ./configure > --prefix=/opt/ffmpeg --extra-cflags=-I/opt/ffmpeg/include > --extra-ldflags=-L/opt/ffmpeg/lib --pkg-config-flags=--static >

[FFmpeg-user] How are global headers handled in DASH and HLS in ffmpeg?

Hello there, How are global headers handled in the DASH and HLS muxers in FFmpeg? In my workflow, omitting the option -flags +global_header in both HLS and DASH results in unplayable streams. Is this by design? Warm regards, Dennis. ___ ffmpeg-user

Re: [FFmpeg-user] A query on ffmpeg's DASH muxer and setting timeShiftBufferDepth values in MPEG-DASH Media Presentation Description (MPD) files.

On Sat, 16 Feb 2019 at 05:29, Dennis Mungai wrote: > Hello there, > > The documentation for the webm_dash_manifest muxer mentions the > time_shift_buffer_depth option, defined as "Smallest time (in seconds) > shifting buffer for which any Representation is guaran

Re: [FFmpeg-user] Is FFmpeg 4.1.1 able to record, convert and stream 8K UHD (7680 × 4320) (33.2 megapixels) video?

On Wed, 6 Mar 2019 at 15:28, Turritopsis Dohrnii Teo En Ming < tdteoenm...@gmail.com> wrote: > Good evening from Singapore, > > Is FFmpeg 4.1.1 able to record, convert and stream 8K UHD (7680 × > 4320) (33.2 megapixels) video? > > Thank you. > > ===BEGIN EMAIL SIGNATURE=== > > The Gospel for all

[FFmpeg-user] How to pass format options to an underlying muxer when using a fifo output wrapped by tee

Hello there, How would one pass an option to an underlying muxer when using a fifo output? Take this example: https://stackoverflow.com/questions/41880004/ffmpeg-how-to-stream-to-multiple-outputs-with-the-same-encoding-independently/42111569 Wherein you have outputs like these: -i ... -f tee

[FFmpeg-user] A question of hwupload_cuda usage

Hello there, The hwupload_cuda has an option for a device option, which can be called up via: hwupload_cuda=device=n where n would be a device index listed by nvidia-smi. Can one get away without explicitly passing the device option to the filter, if, in ffmpeg, a global hwaccel_device is

[FFmpeg-user] A query on ffmpeg's DASH muxer and setting timeShiftBufferDepth values in MPEG-DASH Media Presentation Description (MPD) files.

Hello there, The documentation for the webm_dash_manifest muxer mentions the time_shift_buffer_depth option, defined as "Smallest time (in seconds) shifting buffer for which any Representation is guaranteed to be available. " What's the equivalent option/setting for the same in the dash muxer

Re: [FFmpeg-user] Large Video Project

On Fri, 25 Jan 2019 at 17:32, Joshua Barnard < joshua.barn...@lawrencedavid.co.uk> wrote: > Hi all, > > Thank you for taking the time to read this. > > I'm working on a project for my company that involves creating a time > lapse video. > > The issue I'm having is that I have 6TB of raw video

Re: [FFmpeg-user] Multicore CPU run

On Sat, 2 Feb 2019 at 19:09, Mahmood Naderan wrote: > >Note that hardware accelerated > >decode is targeted for real time PLAYBACK without using any CPU resources, > >and does not necessarily imply to be faster than a software based decode. > > If I got the point, you are saying that GPU version

Re: [FFmpeg-user] Multicore CPU run

On Sat, 2 Feb 2019 at 19:39, Mahmood Naderan wrote: > >Using your sample above: > > > >./ffmpeg -init_hw_device cuda=0 -i ../4k_normal.mp4 -vf > >format=nv12,hwupload,scale_npp=1280:720 -c:v h264_nvenc 720p1.mp4 > > > >Try that and report back. > > > > > > It fails > > > $ time ./ffmpeg

Re: [FFmpeg-user] Multicore CPU run

On Thu, Jan 31, 2019, 22:45 Mahmood Naderan Hi, > I want to run a multicore CPU job with ffmpeg and I think the command > should be > > ./ffmpeg -i ../4k_normal.mp4 -vf scale_npp=1280:720 720p1.mp4 > > but it fails > > ./ffmpeg -i ../4k_normal.mp4 -vf scale_npp=1280:720 720p1.mp4 > ffmpeg

Re: [FFmpeg-user] Multicore CPU run

On Sat, 2 Feb 2019 at 18:47, Mahmood Naderan wrote: > >Then don't use the cuda filter. > > So, my time measurements show that > > CPU: ./ffmpeg -i ../4k_normal.mp4 -vf scale=1280:720 720p1.mp4 > real0m23.748s > > GPU: ./ffmpeg -hwaccel cuvid -c:v h264_cuvid -i ../4k_normal.mp4 -vf >

Re: [FFmpeg-user] List members behaving badly

On Fri, 12 Apr 2019 at 06:49, Phil Rhodes via ffmpeg-user < ffmpeg-user@ffmpeg.org> wrote: > People, please... > I offer the following in the hope that it can be viewed as constructive > criticism. > The argument here is effectively one which has been raging for years - > decades, even - and it

[FFmpeg-user] Is ffmpeg trac down?

Hello there, FFmpeg trac seems to be down at the moment. Accessing tickets, such as this one https://trac.ffmpeg.org/ticket/7831 is a no go. Was there a scheduled maintenance in place, or is this an outage? Warm regards, Dennis. ___ ffmpeg-user mailing

Re: [FFmpeg-user] List members behaviour

On Sun, 14 Apr 2019 at 01:55, Reindl Harald wrote: > > > Am 14.04.19 um 00:39 schrieb CherylJosie via ffmpeg-user: > > bullshit - they are just honest and direct instead the ass-licking and > > attack subtle which is common in the shiny business world where nobody > > has the eggs to say his

Re: [FFmpeg-user] List members behaving badly

On Fri, 12 Apr 2019 at 23:26, Jim Shupert wrote: > > >> I'm from the Republic of Ireland and I have found your behaviour to be > >> inappropriate for years. > from the heartland of the USA I offer the hopeful words of that tragic > American > *Rodney King*, the man whose vicious beating by the

Re: [FFmpeg-user] List members behaving badly

On Fri, 12 Apr 2019 at 10:27, Reindl Harald wrote: > > > Am 12.04.19 um 06:51 schrieb Dennis Mungai: > > We need to stop making *this* a justification for the toxicity the likes > of > > Reindl create in this mailing list. > > it's bullshit, wouldn't a few fools

Re: [FFmpeg-user] A query on slice based encoding in vp9_vaapi

On Thu, 30 May 2019 at 21:40, Dennis Mungai wrote: > Hello there, > > According to the VAAPI encoder docs, slice based encoding can be enabled > for the respective encoders via the -slices:v n where n is the number of > slices so desired. > > However, toggling this option

Re: [FFmpeg-user] libaom AV1 Encoding

On Wed, 29 May 2019 at 08:25, Matthew Reus wrote: > hello all , > > DO libaom AV1 support gpu or not . As on libx264 and libx265 they do > support gpu encoding Hello there, This may be the wrong mailing list , particularly in the case of libaom’s AV1 encoder, but: (a). No, no form of GPU

[FFmpeg-user] A query on slice based encoding in vp9_vaapi

Hello there, According to the VAAPI encoder docs, slice based encoding can be enabled for the respective encoders via the -slices:v n where n is the number of slices so desired. However, toggling this option on for the vp9_vaapi encoder results in a warning on initialization about slice based

Re: [FFmpeg-user] Question about file size changes

On Sun, 16 Jun 2019 at 22:26, David Shuman wrote: > I have a video recorder that outputs files with an .mts suffix. mediainfo > identifies these files as BDAV more commonly .m2ts files I attempt to copy > these files with the following commands > > ffmpeg -i >

Re: [FFmpeg-user] problems with astreamselect

On Mon, 10 Jun 2019 at 02:19, Eric Ball wrote: > Thought I'd check with the mailing list before filing a bug report. > > ffmpeg version 4.1.1-tessus on macOS 10.14.5 > > test.mp4 contains 3 streams :0 h264, :1 aac, :2 aac > > ffmpeg -i test.mp4 -filter_complex:a "astreamselect=inputs=2:map=1" >

Re: [FFmpeg-user] FFMPEG cuda hwaccell error

On Tue, 18 Jun 2019 at 01:20, Nishant Trivedi wrote: > Hello, > > I'm trying to decode a video stream for one of my projects using the > following command: > > *ffmpeg -hide_banner -hwaccel cuda -nostats -i > rtmp://:/myapp/mystream -filter_complex [0]fps=fps=1[s0] -map > [s0] -f rawvideo

Re: [FFmpeg-user] FFMPEG cuda hwaccell error

On Tue, 18 Jun 2019 at 02:06, Nishant Trivedi wrote: > That worked! Thanks Dennis! > > On Mon, Jun 17, 2019 at 6:37 PM Dennis Mungai wrote: > > > On Tue, 18 Jun 2019 at 01:20, Nishant Trivedi wrote: > > > > > Hello, > > > > > > I'm trying to

Re: [FFmpeg-user] what's command line to transcode video with libx265 8/10bit

On Thu, 9 May 2019 at 13:04, qw wrote: > Hi, > > > If I build libx265 with bitdepth=10bit, and link it with ffmpeg, what's > command line to transcode video with libx265 8/10bit? > > Hmm, add either global option below: (a). -bits_per_raw_sample 10 and the encoder will pick both the profile and

Re: [FFmpeg-user] A question on H.264 High 4:4:4 Predictive decode support on NVIDIA Pascal hardware via nvdec

On Thu, 9 May 2019 at 02:44, Dennis Mungai wrote: > Hello there, > > I have a sample file with the following attributes: > > ffprobe -i rv.mkv > ffprobe version N-93814-g48539b62fc Copyright (c) 2007-2019 the FFmpeg > developers > built with gcc 7 (Ubu

Re: [FFmpeg-user] A question on H.264 High 4:4:4 Predictive decode support on NVIDIA Pascal hardware via nvdec

On Thu, 9 May 2019 at 03:06, Philip Langdale wrote: > On Thu, 9 May 2019 02:53:01 +0300 > Dennis Mungai wrote: > > > > > > > The GPU matrix published by NVIDIA only indicates support for HEVC > > > @ 4:4:4 : > > > https://developer.nvid

[FFmpeg-user] A question on H.264 High 4:4:4 Predictive decode support on NVIDIA Pascal hardware via nvdec

Hello there, I have a sample file with the following attributes: ffprobe -i rv.mkv ffprobe version N-93814-g48539b62fc Copyright (c) 2007-2019 the FFmpeg developers built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04) configuration: --pkg-config-flags=--static --prefix=/home/brainiarc7/bin

Re: [FFmpeg-user] GPU/CPU encoding

On Mon, Apr 29, 2019, 11:16 andrei ka wrote: > hmm, i think one could extract frames with ffmpeg and pipe 'em into some > gpu encoging software. or one can invent some sort of chain processing, > like encoding video in gpu at 1 fps and then pipe into ffmpeg to split > video into frames in cpu ?

Re: [FFmpeg-user] vaapi can't find entrypoint shown by vainfo

On Sat, 4 May 2019 at 20:42, sean darcy wrote: > Giving up on qsv, I'm trying vaapi, but ffmpeg can't find the vp9 entry > point supported by my cpu , and found by vainfo. > > FWIW, hevc_vaapi works. > > > ffmpeg -vaapi_device /dev/dri/renderD128 -i infile.mkv -map v -map 0:2 > -vf

Re: [FFmpeg-user] qsv : do I really need to patch and build the kernel ?

On Fri, May 3, 2019, 03:35 sean darcy wrote: > I'm getting old watching libx265 run, so I was thinkng of experimenting > with hevc_qsv. I configured ffmpeg with libmpfx. But now I read I need a > plugin: hevc_hw. And to get that plugin I need to install the Intel > Media SDK, which requires me

Re: [FFmpeg-user] qsv : do I really need to patch and build the kernel ?

On Fri, 3 May 2019 at 12:39, Carl Eugen Hoyos wrote: > Am Fr., 3. Mai 2019 um 06:26 Uhr schrieb Dennis Mungai >: > > > See this answer on superuser for more details > > https://superuser.com/a/1428799/473795 > > Would you agree that this answer contains too m

Re: [FFmpeg-user] qsv : do I really need to patch and build the kernel ?

On Fri, 3 May 2019 at 12:55, Carl Eugen Hoyos wrote: > Am Fr., 3. Mai 2019 um 11:51 Uhr schrieb Dennis Mungai >: > > > Making assumptions on the user's technical capabilities in such a > project, > > on a user forum, is dangerously dismissive. > > That was exactly

Re: [FFmpeg-user] How to corryctly mainterpolate video with low framerate on nvenc?

On Thu, 11 Jul 2019 at 17:55, Алексей via ffmpeg-user < ffmpeg-user@ffmpeg.org> wrote: > I've a low framerated video file, recorded at 24 fps. I need change its > framerate to 60 fps, but with smooth playback style adding. Can u help me > to do this on my nvenc. Thanks. Hello there, What

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