Re: [FFmpeg-user] ffmpeg command required to convert MPEG TS to HLS with transcoding to aac
ck. Your master.m3u8 which will later on reference the other master.m3u8 files generated by ffmpeg should look like this: ___ #EXTM3U #EXT-X-VERSION:7 #EXT-X-PLAYLIST-TYPE VOD #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="a-1",NAME="English (5.1)",CHANNELS=6,AUTOSELECT="YES",DEFAULT="NO",LANGUAGE="en",URI="a-aac-en-mp4a.40.2_384000/master.m3u8" #EXT-X-STREAM-INF:BANDWIDTH=11956736,RESOLUTION=3840x2160,CODECS="avc1.640033,mp4a.40.2",AUDIO="a-1" v-h264-2160p-avc1.640033/master.m3u8 ___ There are many other parameters you can set here. This is very basic. If you have HDR content for example you will also need to announce this in your master.m3u8 file, and also use codecs which support 10 Bit/HDR like HEVC or AV1 (SVT-AV1). Second you also have to think about the way of transportation here, HEVC and AV1 will only work with fmp4 (.m4s) segments, not with mpegts segments (.ts). I can only recommend reading through the whole HLS documentation published by Apple: https://developer.apple.com/documentation/http_live_streaming/understanding_the_http_live_streaming_architecture It will give you a very good understanding about compatibility along different devices, codecs, and ways of delivering your content. Without going too much into detail, all encoding commands I showed above will create independent segments, meaning your video gets split into many thousand files. It's questionable if this is the way you wanted to go. It's also possible to have single files for each of your output tracks. But then the delivery only works using byte-range requests which your webserver must also support and which again are not compatible with XHR authentication requests by common browsers. Just in case you want to protect your segment pulling outside of CORS validation. So there is a lot of stuff you have to experiment yourself with. Professional HLS authoring and delivery is really not an easy task. Third, Build stuff yourself, espacially when building such a complex app like yours. Build ffmpeg from scratch, build nginx or even better use OpenResty and build it from scratch, build a performantd FUSE Filesystem for mounting your S3 buckets etc. It really pay off in the end. Going with half baked solutions you haven't written yourself will get you stuck at at a specific point, I'm pretty sure onto that. Kind regards, Robin Am 2022-12-11 00:01, schrieb Robin van der Linden via ffmpeg-user: I give you a detailed answer in the next 24 Hrs. I currently dont have Access to my system and code Cheers, Robin Von: Mahesh Velankar Gesendet: Samstag, 10. Dezember 2022 22:38 An: ffmpeg-user@ffmpeg.org Betreff: Re: [FFmpeg-user] ffmpeg command required to convert MPEG TS to HLS with transcoding to aac Robin, This is not for a single video, I have to keep the application ready that will be receiving different input TS and the app will need to prepare the playlists, segments and master playlist. I am aware that I need to write script/app for this. Please tell me the command line to prepare individual playlists and segmentsand I will be able to write the master playlist myself. Thanks in advance for your help -Mahesh --- Robin wrote: Hello, ffmpeg can do this, at least some parts. It will create the segments and a master.m3u8 file for each track by itself. Still you will need to create master.m3u8 File wich references all the tracks master.m3u8 yourself. My Script is about 3500 lines long, so be prepared that you have to code lot yourself. Im currently on the go, but I will try to provide you some more advice. Are you about to encode a single Video or do you need a full implemented rapackaging process for many vidz? Kind regards, Robin On Sat, Dec 10, 2022 at 1:53 PM Mahesh Velankar wrote: I have a transport stream file with following details (given by ffprobe) Input #0, mpegts, from 'f-13324-ccrtpa_before_tc_1669374838.ts': Duration: 00:04:23.44, start: 8879.809433, bitrate: 2373 kb/s Program 3 Stream #0:0[0x31]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, progressive), 856x480 [SAR 320:321 DAR 16:9], Closed Captions, 30 fps, 29.97 tbr, 90k tbn, 60 tbc Stream #0:1[0x34](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 320 kb/s Stream #0:2[0x35](spa): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 192 kb/s (visual impaired) Stream #0:3[0x36]: Data: klv (KLVA / 0x41564C4B) I want to convert this into HLS playlists and segments. The requirements are as follows There will be two playlists playlist 1 will have a listing of TS segments. Each such segment will have 1. Video stream (Stream #0:0) from the above input (h264) and 2. Audio stream 1 (Stream #0:1) from the above input (ac3 5.1) but converted to
Re: [FFmpeg-user] ffmpeg command required to convert MPEG TS to HLS with transcoding to aac
I give you a detailed answer in the next 24 Hrs. I currently dont have Access to my system and code Cheers, Robin Von: Mahesh Velankar Gesendet: Samstag, 10. Dezember 2022 22:38 An: ffmpeg-user@ffmpeg.org Betreff: Re: [FFmpeg-user] ffmpeg command required to convert MPEG TS to HLS with transcoding to aac Robin, This is not for a single video, I have to keep the application ready that will be receiving different input TS and the app will need to prepare the playlists, segments and master playlist. I am aware that I need to write script/app for this. Please tell me the command line to prepare individual playlists and segmentsand I will be able to write the master playlist myself. Thanks in advance for your help -Mahesh --- Robin wrote: Hello, ffmpeg can do this, at least some parts. It will create the segments and a master.m3u8 file for each track by itself. Still you will need to create master.m3u8 File wich references all the tracks master.m3u8 yourself. My Script is about 3500 lines long, so be prepared that you have to code lot yourself. Im currently on the go, but I will try to provide you some more advice. Are you about to encode a single Video or do you need a full implemented rapackaging process for many vidz? Kind regards, Robin On Sat, Dec 10, 2022 at 1:53 PM Mahesh Velankar wrote: > I have a transport stream file with following details (given by ffprobe) > > Input #0, mpegts, from 'f-13324-ccrtpa_before_tc_1669374838.ts': > Duration: 00:04:23.44, start: 8879.809433, bitrate: 2373 kb/s > Program 3 > Stream #0:0[0x31]: Video: h264 (Main) ([27][0][0][0] / 0x001B), > yuv420p(tv, bt709, progressive), 856x480 [SAR 320:321 DAR 16:9], Closed > Captions, 30 fps, 29.97 tbr, 90k tbn, 60 tbc > Stream #0:1[0x34](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, > 5.1(side), fltp, 320 kb/s > Stream #0:2[0x35](spa): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, > stereo, fltp, 192 kb/s (visual impaired) > Stream #0:3[0x36]: Data: klv (KLVA / 0x41564C4B) > > > I want to convert this into HLS playlists and segments. The requirements > are as follows > There will be two playlists > > playlist 1 will have a listing of TS segments. Each such segment will have > 1. Video stream (Stream #0:0) from the above input (h264) and > 2. Audio stream 1 (Stream #0:1) from the above input (ac3 5.1) but > converted to aac format > > playlist 2 will have a listing of TS segments. Each such segment will have > 1. Video stream (Stream #0:0) from the above input (h264) and > 2. Audio stream 2 (Stream #0:2) from the above input (ac3 stereo) but > converted to aac format > > In short the output segments will have one video and one audio stream. > Since there are two audio streams I need to convert it into two different > playlists ... each having video and one of the audio streams > > ac3 to aac conversion is mandatory, as it has to be played in the browser. > > How can I achieve this with the ffmpeg command line? Please help or point > me to any such recipe if already available. > > Thanks > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg command required to convert MPEG TS to HLS with transcoding to aac
Hello, ffmpeg can do this, at least some parts. It will create the segments and a master.m3u8 file for each track by itself. Still you will need to create master.m3u8 File wich references all the tracks master.m3u8 yourself. My Script is about 3500 lines long, so be prepared that you have to code lot yourself. Im currently on the go, but I will try to provide you some more advice. Are you about to encode a single Video or do you need a full implemented rapackaging process for many vidz? Kind regards, Robin Von: Mahesh Velankar Gesendet: Samstag, 10. Dezember 2022 19:53 An: ffmpeg-user@ffmpeg.org Betreff: [FFmpeg-user] ffmpeg command required to convert MPEG TS to HLS with transcoding to aac I have a transport stream file with following details (given by ffprobe) Input #0, mpegts, from 'f-13324-ccrtpa_before_tc_1669374838.ts': Duration: 00:04:23.44, start: 8879.809433, bitrate: 2373 kb/s Program 3 Stream #0:0[0x31]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, progressive), 856x480 [SAR 320:321 DAR 16:9], Closed Captions, 30 fps, 29.97 tbr, 90k tbn, 60 tbc Stream #0:1[0x34](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 320 kb/s Stream #0:2[0x35](spa): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 192 kb/s (visual impaired) Stream #0:3[0x36]: Data: klv (KLVA / 0x41564C4B) I want to convert this into HLS playlists and segments. The requirements are as follows There will be two playlists playlist 1 will have a listing of TS segments. Each such segment will have 1. Video stream (Stream #0:0) from the above input (h264) and 2. Audio stream 1 (Stream #0:1) from the above input (ac3 5.1) but converted to aac format playlist 2 will have a listing of TS segments. Each such segment will have 1. Video stream (Stream #0:0) from the above input (h264) and 2. Audio stream 2 (Stream #0:2) from the above input (ac3 stereo) but converted to aac format In short the output segments will have one video and one audio stream. Since there are two audio streams I need to convert it into two different playlists ... each having video and one of the audio streams ac3 to aac conversion is mandatory, as it has to be played in the browser. How can I achieve this with the ffmpeg command line? Please help or point me to any such recipe if already available. Thanks ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] How to get HDR metadata inside my AV1 video?
Hey folks, I'm trying to reencode a 10 Bit HEVC to 10 Bit AV1 while keeping the HDR metadata intact. Sadly, I don't see any HDR metadata with VLC at the reencoded AV1 clip. The only thing I see are very cold looking colors, have a look at my encode command: /usr/bin/ffmpeg -i "/tmp/VODProcessing/Test (2022) - [2160p UHD].m4v" -map 0:0 -c:v libsvtav1 -b:v 7864320 -maxrate:v 8257536 -bufsize 31457280 -vf zscale=width=3840:height=2160 -svtav1-params "input-depth=10:fast-decode=1:color-primaries=9:transfer-characteristics=16:matrix-coefficients=9:mastering-display=G(0.265,0.69)B(0.15,0.06)R(0.68,0.32)WP(0.3127,0.329)L(4000.0,0.005):content-light=368,226:enable-hdr=1" -pix_fmt yuv420p10le -color_trc smpte2084 -max_muxing_queue_size 1024 -profile:v main -preset 6 -crf 16 -strict experimental -bf 0 -tune fastdecode -force_key_frames "expr:gte(t,n_forced*2)" -keyint_min 48 -use_timeline 1 -use_template 1 -map_metadata -1 -map_chapters -1 -sc_threshold 0 -f hls -seg_duration 4 -hls_time 4 -streaming 1 -hls_list_size 0 -hls_segment_filename "/tmp/VODProcessing/output/Test (2022) - [2160p UHD]/v-av01-2160p-av01.0.12H.10/f-%04d.m4s" -hls_fmp4_init_filename "init-v-av01-2160p-av01.0.12H.10.m4s" -hls_segment_type fmp4 -hls_playlist_type vod -movflags frag_keyframe+frag_every_frame+write_colr+prefer_icc+skip_trailer+faststart -hls_flags independent_segments "/tmp/VODProcessing/output/Test (2022) - [2160p UHD]/v-av01-2160p-av01.0.12H.10/master.m3u8" Can somebody give me a hint why the SVT-AV1 encoder does not take the information? -- Grüße / Kind regards, Robin van der Linden ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] fmp4 streaming issues
@Dave Blanchard Hello again, I've now applied the patch you provided, it worked without a problem. Sadly, this was not the root-cause in the end. The stream still often breaks on quality change using VideoJS 7.20.3 with fmp4. I also tried to only use one single video and audio codec at my hls manifest just to make sure the player does not change the codec for some reason. This sadly also did not solve the problem. I really start to believe that it has something to do with the way VideoJS does remuxing. Yesterday I also had the chance to play around with the bitmovin player, and here it's working flawlessly for some reason with the data I generate using ffmpeg, the same data that fails with VideoJS. I now hope that the new VHS release by VideoJS from yesterday will come upstream fast as it contains a lot of bug fixes, let's see. Thanks again, Robin Am 2022-11-21 23:00, schrieb Dave Blanchard: I tried to find some more information onto this, but I'm not sure if this might be the issue: https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=1018 Is somebody able to provide some more information onto these issues? Why aren't these changes already merged? Can I do this by my own, and if so, how? If you're on Linux, you can easily build your own patched ffmpeg. Although I'm using SRT now, in the event you or someone else is stuck with HLS, I went ahead and ported this patch to the current ffmpeg 5.1.2 source. It's attached to this email, along with a build script for ffmpeg. It compiles, and looks like it will work, but I haven't tested it; so give it a try and see if it helps. First download ffmpeg 5.1.2 from: https://ffmpeg.org/releases/ffmpeg-5.1.2.tar.bz2 Then put it in a directory somewhere with the script and patch file. By default the script builds and installs ffmpeg and the docs in the current directory, under ./ffmpeg and ./ffmpeg-doc. You can easily edit the script to replace the system ffmpeg, if you want; then just run the script with 'sudo'. You'll undoubtedly have to install a number of different -dev packages of various needed libraries to complete the build, so just run the script, watch for 'configure' to fail with missing packages, then find and install the -dev version of what it's looking for. If you need to cross-build ffmpeg for a different CPU, the script can do that also; set environment variable TARGET="aarch64" or whatever. I do recommend to switching to SRT if you can, though, as it's much better than HLS in my experience. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". -- Grüße / Kind regards, Robin van der Linden ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] fmp4 streaming issues
Hello, thanks for your time. Well, I would love to use a single way of transportation. Currently, I have to work with HLS and DASH side by side ... SRT is not wanted at the moment. We have our own build script that also builds all libs from source incl. svt-av1 which we heavily rely on. Basically we put hevc, avc1 and av1 all into fragmented mp4. I will try to integrate your patch asap, but for some reason it seems (still testing) that when using byte-range requests this issue does not come up. At least not with the test stream provided by nuevodevel which is basically VideoJS 7 here: https://www.nuevodevel.com/nuevo/showcase/fmp4hls The only difference to my stream seems to be the byte-range request instead of pulling file based m4s segments. I will report back. Thanks so far, Robin Am 2022-11-21 23:00, schrieb Dave Blanchard: I tried to find some more information onto this, but I'm not sure if this might be the issue: https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=1018 Is somebody able to provide some more information onto these issues? Why aren't these changes already merged? Can I do this by my own, and if so, how? If you're on Linux, you can easily build your own patched ffmpeg. Although I'm using SRT now, in the event you or someone else is stuck with HLS, I went ahead and ported this patch to the current ffmpeg 5.1.2 source. It's attached to this email, along with a build script for ffmpeg. It compiles, and looks like it will work, but I haven't tested it; so give it a try and see if it helps. First download ffmpeg 5.1.2 from: https://ffmpeg.org/releases/ffmpeg-5.1.2.tar.bz2 Then put it in a directory somewhere with the script and patch file. By default the script builds and installs ffmpeg and the docs in the current directory, under ./ffmpeg and ./ffmpeg-doc. You can easily edit the script to replace the system ffmpeg, if you want; then just run the script with 'sudo'. You'll undoubtedly have to install a number of different -dev packages of various needed libraries to complete the build, so just run the script, watch for 'configure' to fail with missing packages, then find and install the -dev version of what it's looking for. If you need to cross-build ffmpeg for a different CPU, the script can do that also; set environment variable TARGET="aarch64" or whatever. I do recommend to switching to SRT if you can, though, as it's much better than HLS in my experience. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". -- Grüße / Kind regards, Robin van der Linden ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] fmp4 streaming issues
Hello,
can somebody explain why fmp4 currently does randomly break on seek
and/or quality change using VideoJS and other players, while mpegts
works 100% fine?
I really don't change anything on my encode command, except of the
output format transport type:
mpegts (working):
-hls_segment_filename "{path}/f-%04d.ts"
-hls_fmp4_init_filename "init-{name}.ts"
-hls_segment_type mpegts'
fmp4 (not working):
-hls_segment_filename "{path}/f-%04d.m4s"
-hls_fmp4_init_filename "init-{name}.m4s"
-hls_segment_type fmp4'
I tried to find some more information onto this, but I'm not sure if
this might be the issue:
https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=1018
Is somebody able to provide some more information onto these issues? Why
aren't these changes already merged? Can I do this by my own, and if so,
how?
--
Grüße / Kind regards,
Robin van der Linden
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Re: [FFmpeg-user] How to add black bars as replacement for height?
Thanks for your reply, Moritz,
I now came to the following cmd:
-vf
"scale={stream["width"]}:{stream["height"]}:force_original_aspect_ratio=decrease,pad={stream["width"]}:{stream["height"]}:(ow-iw)/2:(oh-ih)/2,setsar=1"
{stream["height"]} and {stream["width"]} are just placeholders
Thanks for your help.
Am 2022-11-08 08:05, schrieb Moritz Barsnick:
On Tue, Nov 08, 2022 at 03:02:36 +0100, FFmpeg user discussions wrote:
Can I use ffmpeg to convert a 1920x800 resolution clip to 1920x1080?
The
goal is to fill the remaining pixels with a true black bar.
Have a look at the pad filter:
https://ffmpeg.org/ffmpeg-filters.html#pad-1
Something like
$ ffmpeg -i inputfile -vf "pad=h=1080:y=(oh-ih)/2" outputfile
The "y" expression is for centering the video vertically.
Cheers,
Moritz
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--
Grüße / Kind regards,
Robin van der Linden
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[FFmpeg-user] How to add black bars as replacement for height?
Can I use ffmpeg to convert a 1920x800 resolution clip to 1920x1080? The goal is to fill the remaining pixels with a true black bar. -- Grüße / Kind regards, Robin van der Linden ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 16:9 to 2.35:1 and true HD 7.1 to DTS
@Carl Eugen I check on the web for that, but was not able to find any encoder/decoder for TrueHD. Can you give some more information here, I'm pretty sure it does not survive the volume per channel layout. From my understanding, if it works, it's experimental. Kind regards, Robin van der Linden Am 2022-11-03 22:35, schrieb Carl Eugen Hoyos: Am Do., 3. Nov. 2022 um 20:34 Uhr schrieb Robin van der Linden via ffmpeg-user : About the audio, I'm pretty sure that TrueHD is a BlackBox to ffmpeg FFmpeg contains a TrueHD deccoder and encoder. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". -- Grüße / Kind regards, Robin van der Linden ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] 16:9 to 2.35:1 and true HD 7.1 to DTS
Hello, about the first point, I have no idea, maybe somebody else has. About the audio, I'm pretty sure that TrueHD is a BlackBox to ffmpeg, same goes for Dolby Atoms. I'm not sure if you have access to a MacOS system, I personally run it inside a VM. There is a tool called "Subler" for MacOS, which can at least transform a DTS source to AC3, not sure about TrueHD and other formats, but maybe it's worth a try. But from my understanding, TrueHD is a proprietary format and will most likely also not work with Subler. Kind regards, Robin Am 2022-11-03 20:17, schrieb Bartosz Trzebuchowski: Hi, I’m completely new to ffmpeg and have 2 questions: 1. How can I convert 16:9 movies to 2.35:1? My projector can’t scale down and 16:9 movies run outside my 2.35:1 canvas at the top and the bottom. I need to black out top and bottom so only 2.35:1 is visible. 2. My old Yamaha surround can’t decode true HD. Is is possible with ffmpeg to convert the sound to DTS 7.1? Thanks Bartek ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". -- Grüße / Kind regards, Robin van der Linden ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] X265 HDR content differs from AVT-AV1 HDR Content
Hello, I'm currently trying to encode a mp4 containing a HEVC 10 Bit stream with proper HDR grading to a HLS stream in two codec versions, the first is HEVC and the second is SVT-AV1. The problem here is that the two encoded versions differ from each other according to the color grading. The SVT-AV1 version looks much colder compared to the HEVC grading. These are my commands: SVT-AV1 /usr/bin/ffmpeg -i "/tmp/VODProcessing/testclip.m4v" -map 0:0 -c:v libsvtav1 -b:v 4718592 -maxrate:v 4954521 -bufsize 18874368 -vf zscale=width=3840:height=1600 -svtav1-params "enable-hdr=1:input-depth=10:fast-decode=1:color-primaries=9:transfer-characteristics=16:matrix-coefficients=9:mastering-display=G(0.265,0.69)B(0.15,0.06)R(0.68,0.32)WP(0.3127,0.329)L(4000.0,0.005):content-light=368,226" -pix_fmt yuv420p10le -max_muxing_queue_size 1024 -profile:v main -preset 7 -crf 20 -keyint_min 48 -g 48 -use_timeline 1 -use_template 1 -seg_duration 6 -strict experimental -map_metadata -1 -map_chapters -1 -f hls -hls_time 6 -streaming 1 -hls_list_size 0 -hls_segment_filename "/tmp/VODProcessing/output/testclip/v-av01-2160p-av01.0.12H.10/f-%04d.m4s" -hls_fmp4_init_filename "init-v-av01-2160p-av01.0.12H.10.m4s" -hls_segment_type fmp4 -movflags frag_every_frame+delay_moov+skip_trailer+faststart -hls_flags independent_segments "/tmp/VODProcessing/output/testclip/v-av01-2160p-av01.0.12H.10/master.m3u8" X265 /usr/bin/ffmpeg -i "/tmp/VODProcessing/testclip.m4v" -map 0:0 -c:v libx265 -b:v 6291456 -maxrate:v 6606028 -bufsize 25165824 -vf zscale=width=3840:height=1600 -x265-params "hdr-opt=1:repeat-headers=1:colorprim=bt2020:transfer=smpte2084:colormatrix=bt2020nc:master-display=G(13250,34500)B(7500,3000)R(34000,16000)WP(15635,16450)L(4000,50):max-cll=368,226" -pix_fmt yuv420p10le -profile:v main10 -bf 0 -crf 16 -preset fast -keyint_min 48 -g 48 -use_timeline 1 -use_template 1 -seg_duration 6 -tune fastdecode -vtag hvc1 -map_metadata -1 -map_chapters -1 -f hls -hls_time 6 -streaming 1 -hls_list_size 0 -hls_segment_filename "/tmp/VODProcessing/output/testclip/v-hevc-2160p-hvc1.2.4.L150.B0/f-%04d.m4s" -hls_fmp4_init_filename "init-v-hevc-2160p-hvc1.2.4.L150.B0.m4s" -hls_segment_type fmp4 -movflags frag_every_frame+delay_moov+skip_trailer+faststart -hls_flags independent_segments "/tmp/VODProcessing/output/testclip/v-hevc-2160p-hvc1.2.4.L150.B0/master.m3u8" I'm using the following script to get the grading: https://pastebin.com/AZdKbPEL But to me, it seems that the encoder ignores these values, talking about SVT-AV1. Can somebody provide a little help here? -- Kind regards, Robin van der Linden ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] How to transcode to HLS and DASH with mp4 and webm all at once
Hello Stefan, did you received the mail I directly send you? Kind regards, Robin Am 2022-10-12 14:00, schrieb Stefan Oltmanns: Hi Alvaro, you should be able to generate the mpd file for DASH Yes, but how? ffmpeg proved an easy way to generate webm-dash-manifests, but I cannot figure out how to use it to include the MPEG segments. And MPEG-DASH manifest creation afterwards I couldn't figure out at all, only with at least remuxing the files. Best regards Stefan Am 12.10.22 um 10:47 schrieb Alvaro Jimenez: DASH is codec agnostic, so if you already have or generate the ts segments for HLS, you should be able to generate the mpd file for DASH to play back the same segments you would use for HLS. I have used the m4s segments, and I have seen a common instance of lip sync issues that I have never see using mpeg.ts segments. In my opinion, CMAF using mp4 segments is over-rated, and heavily promoted by commercial encoding and streaming engines like Wowza. Regards, Alvaro Jiménez On Tuesday 11 October 2022 10:06:36 AM (-07:00), Stefan Oltmanns wrote: Hi Clay, for me storage is not a major concern (the total number of videos will not be that high), but device compatibility is (including older devices). Apple does not seem to support CMAF on older devices, only MPEG-TS, therefore I'll stick to MPEG-TS. There are also some approaches like mux.js that are intended to remux the stream as needed in the browser, but I rather stick to MP4/MPEG2-TS. I have not played with ffmpeg-python yet, but good to know. I started writing a PHP script that generates a ffmpeg command-line for transcoding a specific video (in fact multiple, because ffmpeg got killed when I tried to transcode to all formats at once: my system ran out of it's 64 GB memory...). I still couldn't figure out how generate a single DASH manifest for webm and mp4 files. That should be possible, because dash.js added support for that in 4.0 and shaka seems to have always supported that. Best regards Stefan Am 11.10.22 um 17:00 schrieb Clay via ffmpeg-user: Hi Steve Have you looked into CMAF for this solution? I am also working on some complex transcoding and packaging actions for HLS ABR delivery. I am looking into using CMAF to reduce the overall storage footprint (gpu/cpu threads still cost a lot more than storage). Also, I am experimenting with ffmpeg-python (https://github.com/kkroening/ffmpeg-python), have you (or anyone reading this) played around with it? *I apologize to the forum for the accidental prior message (inadvertent click :-P) Liberty & Regard, Clay ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". -- Grüße / Kind regards, Robin van der Linden 0x257F9C8D.asc Description: application/pgp-keys ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] Subtitle metadata incomplete with ffprobe?
Hey folks, is it maybe possible that we add compatibility for more subtitle related metadata. For example, ffprobe does not properly read if a subtitle track is set as enforced, sdh, auxiliary content etc. This would really help to build proper dash/hls streams with proper subtitle names on them. Thanks and kind regards, R. Linden 0x257F9C8D.asc Description: application/pgp-keys ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Subtitle metadata not intercompatible by ffprobe
Testing files can be obtained from here: https://drive.google.com/file/d/1kShvOA6_Emx3COrMudn3V2__zErj8_-c/view?usp=sharing -- Kind regards, R. Linden 0x257F9C8D.asc Description: application/pgp-keys ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] metadata on subtitle track's not readable by ffprobe
Hello,
I'm building an industry grade streaming platform where I use ffmpeg and
ffprobe to convert and parse information from media objects. I'm using
ffprobe to read all available information from a mp4 file using the
following command:
ffprobe -print_format json -export_all true -show_streams -show_format
-loglevel quiet -hide_banner /path/to/file.mp4
But if I take a closer look at the output of it, I'm not able to check
if a subtitle is enforced, marked as SDH or auxiliary content. The only
thing I really see is when the subtitle is marked as a default track
which does not help at all, e.g.:
{
"index": 1,
"codec_name": "mov_text",
"codec_long_name": "MOV text",
"codec_type": "subtitle",
"codec_tag_string": "tx3g",
"codec_tag": "0x67337874",
"width": 1920,
"height": 162,
"id": "0x2",
"r_frame_rate": "0/0",
"avg_frame_rate": "0/0",
"time_base": "1/1000",
"start_pts": 0,
"start_time": "0.00",
"duration_ts": 28237,
"duration": "28.237000",
"bit_rate": "44",
"nb_frames": "8",
"extradata_size": 48,
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0,
"timed_thumbnails": 0,
"captions": 0,
"descriptions": 0,
"metadata": 0,
"dependent": 0,
"still_image": 0
},
"tags": {
"creation_time": "2022-09-17T11:23:47.00Z",
"language": "eng"
}
},
You might wonder what I mean by a subtitle is marked as SDH, enforced or
auxiliary content. These are extended information of a specific track
element of a subtitle embedded into a mp4 container, in most cases these
embedded subtitles come in tx3g format. The most advanced tool I know of
to write metadata and tracks into a mp4 container is called "Subler" and
it's sadly only available on MAC OS since many years.
Subler is extremely conform with apple's definition of mp4 containers
and how to "metarise" them, by that it very nicely integrates with
QuickTime, iOS etc. Subler also allows me to set a subtitle track of a
mp4 as SDH, enforced, auxiliary content etc. But I'm not able to read
this information later using ffprobe, which is absolutely mandatory for
me as I repack media from these highly metarised mp4 containers into
HLS/Dash streams where I really want to know if a subtitle is marked as
enforced or SDH. Otherwise, I cannot display this information to the
end-user using e.g. VideoJS, as all the Video players out there parse
their subtitle track names from a m3u8/mpd manifest you pass them. So
the only information I can rely on while building a HLS/DASH stream from
a mp4 input is the ffprobe's output, which currently does not cover
these fields I have with subler and would really solve this issue. The
information is there, but I can't read it using ffprobe to put it in
more simple words. The only thing I can do at the moment is to compare
the nb_frames value and if I have 2 subtitles in the same language.
Maybe I have 2x English subtitles, one is shorter than the other, than I
maybe know what of the two is the enforced subtitle track and which is
the full subtitle track ... This workaround kinda sucks, and I still
have no clue what track is marked as SDH.
I created an example mp4 file with 4 subtitle tracks in it, each of the
subtitle tracks covers a specific type of metadata setup which I want to
be able to read using ffprobe. I also included screenshots where I show
how each subtitle track is metarised under the use of Subler.
https://drive.google.com/file/d/1kShvOA6_Emx3COrMudn3V2__zErj8_-c/view?usp=sharing
If I parse the example file using the command I showd above, I get backe
the following which does not reflect the metadata I set befor using
subler, execpt of one single field "default": 1, this is the only one
that works for me:
{
"streams": [
{
"index": 0,
"codec_name": "h264",
"codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part
10",
"profile": "High",
"codec_type": "video",
"codec_tag_string": "avc1",
"codec_tag": "0x31637661",
"width": 1920,
"height": 1080,
"coded_width": 1920,
"coded_height": 1080,
"closed_captions": 0,
"film_grain": 0,
"has_b_frames": 2,
"pix_fmt": "yuv420p",
Re: [FFmpeg-user] encryption not available for fmp4/m4s segments ?!?
Hello again, well I'm not sure what I should do with your reply, but good to know that you know it better, but that doesn't help me at all. If you know a solution, please let me simply know. 1. " No idea how "encryption" should work without "DRM" " -> Clearkey for example. 2. If you have really read my message, it's according to HEVC and that it's only compatible if you use fmp4 as hls_segment_type instead of mpegts. I use h264 and HEVC as I provide ABR streams up to 4K HDR, so there is no way around fmp4 for me. The problem is that fmp4 is not "packable" with encryption, and you will get the following error: > Encrypted fmp4 not yet supported Could not write header for output file #0 (incorrect codec parameters ?): Not yet implemented in FFmpeg, patches welcome < If you don't believe me, please try yourself using the following parameters found at http://www.ffmpeg.org/ffmpeg-all.html -> 21.17.1 Options (-hls_enc -hls_enc_key -hls_enc_key_url -hls_enc_iv). Please make sure you set hls_segment_type to fmp4 And yes I'm on the latest greatest self build ffmpeg version available (5.0.1). Thanks in advance. Am 2022-07-12 00:35, schrieb Reindl Harald: Am 11.07.22 um 23:22 schrieb Robin van der Linden via ffmpeg-user: Hello, I'm urgently searching for a solution to protect HLS streams using DRM/AES encryption. Currently, it seems that this is only working with .ts segments not with .m4s segments and .ts files again don't work with HEVC / 4k HDR content, so it seems I'm 100% stuck at this point. There is also a report from another user (4 years ago) with exactly the same issue: https://trac.ffmpeg.org/ticket/7138 Is there any kind of progress or workaround? no idea how "encryption" should work without "DRM" "protect HLS streams using DRM/AES encryption" belongs fro the sake of god to the transport layer and has nothing to do with the media file ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". -- Grüße / Kind regards, Robin van der Linden 0x257F9C8D.asc Description: application/pgp-keys ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] encryption not available for fmp4/m4s segments ?!?
Hello, I'm urgently searching for a solution to protect HLS streams using DRM/AES encryption. Currently, it seems that this is only working with .ts segments not with .m4s segments and .ts files again don't work with HEVC / 4k HDR content, so it seems I'm 100% stuck at this point. There is also a report from another user (4 years ago) with exactly the same issue: https://trac.ffmpeg.org/ticket/7138 Is there any kind of progress or workaround? -- Grüße / Kind regards, Robin van der Linden 0x257F9C8D.asc Description: application/pgp-keys ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Subtitle metadata not intercompatible by ffprobe
Hello,
thanks for your interest in my question. I will need a couple of days to
get all the stuff together, I will report back ASAP.
Thanks,
Robin van der Linden
Am 2022-06-29 03:50, schrieb Bang He:
Can you share your mp4 file generated by subler, i have no apple
computer.
On Fri, Jun 10, 2022 at 5:59 AM Robin van der Linden via ffmpeg-user <
ffmpeg-user@ffmpeg.org> wrote:
Hello.
I'm using ffprobe to import video information into my database using
python. In general, this process is working fine
but if I set a subtitle forced or SDH using "Subler"
(https://subler.org/) I'm not able to later on check with ffprobe if a
subtitle is set as SDH or is forced. No matter what information I set
with Subler, the ffprobe output will always be:
"disposition": {
"default": 0,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 1,
"timed_thumbnails": 0,
"captions": 0,
"descriptions": 0,
"metadata": 0,
"dependent": 0,
"still_image": 0
},
So basically the only information that really triggers is
attached_pic,
but the rest does not change at all, not matter what I set with
Subler.
The funny thing is that VLC for example recognizes a subtitle as
forced
if I set it as forced using Subler. So I can assume that the
Information
is there, but stored differently so ffprobe can't read it properly. Is
there any chance that this will be fixed or is there any workaround?
This is the cmd I fire:
"ffprobe -pretty -print_format json -export_all true -show_programs
-show_streams -show_format -loglevel quiet -hide_banner
'path/to/file'"
--
Grüße / Kind regards,
Robin van der Linden___
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[FFmpeg-user] Encrypted fmp4 not yet supported
Hello, Today I actually wanted to start implementing HLS segment encryption for my streams, but each time I try to generate encrypted output segments I run into the following error: "Encrypted fmp4 not yet supported\nCould not write header for output file #2" After some googling I came across this post, which I quite old but still seems true: https://trac.ffmpeg.org/ticket/7138 It still seems that even 2 years later fmp4 encryption is not supported, and I'm asking myself why it was supported in the past but has been dropped, at least according to this post? Is there any workaround here? Can I maybe use OpenSSL here as a workaround? Thanks in advance -- Grüße / Kind regards, Robin van der Linden 0x257F9C8D.asc Description: application/pgp-keys ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] Subtitle metadata not intercompatible by ffprobe
Hello.
I'm using ffprobe to import video information into my database using
python. In general, this process is working fine
but if I set a subtitle forced or SDH using "Subler"
(https://subler.org/) I'm not able to later on check with ffprobe if a
subtitle is set as SDH or is forced. No matter what information I set
with Subler, the ffprobe output will always be:
"disposition": {
"default": 0,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 1,
"timed_thumbnails": 0,
"captions": 0,
"descriptions": 0,
"metadata": 0,
"dependent": 0,
"still_image": 0
},
So basically the only information that really triggers is attached_pic,
but the rest does not change at all, not matter what I set with Subler.
The funny thing is that VLC for example recognizes a subtitle as forced
if I set it as forced using Subler. So I can assume that the Information
is there, but stored differently so ffprobe can't read it properly. Is
there any chance that this will be fixed or is there any workaround?
This is the cmd I fire:
"ffprobe -pretty -print_format json -export_all true -show_programs
-show_streams -show_format -loglevel quiet -hide_banner 'path/to/file'"
--
Grüße / Kind regards,
Robin van der Linden
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Re: [FFmpeg-user] ffprobe does not render sdes tag field properly
In the end it‘s working for me, but it‘s kinda strange. If I save the JSON output as utf-8 I have no problems at all. Anyways, thanks for you idea and Feedback. Kind regards Von: Nicolas George Gesendet: Freitag, 3. Juni 2022 14:52 An: FFmpeg user questions Betreff: Re: [FFmpeg-user] ffprobe does not render sdes tag field properly Robin van der Linden via ffmpeg-user (12022-06-03): > After stealing the Tesseract in \"Avengers: Endgame,\" Loki lands before the > Time Variance Authority. This looks like escaping of a character that has a meaning in the surrounding language, a completely different issue than the issue of international characters. But you did not tell how exactly you get this output, so I cannot say more. I suspect you are missing a lot of theoretical background necessary to achieve your goals. > Am 2022-06-03 11:36, schrieb Nicolas George: Top-posting is forbidden on this mailing-list; if you do not know what it means look it up. Regards, -- Nicolas George ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffprobe does not render sdes tag field properly
Well, that would make a lot of sense. But, if I look at other fields, the encoding is again different. For example, in the synopsis field: My input: After stealing the Tesseract in "Avengers: Endgame," Loki lands before the Time Variance Authority. ffprobe output: After stealing the Tesseract in \"Avengers: Endgame,\" Loki lands before the Time Variance Authority. So the conversion of " is again different here. I switched from PowerShell to a Linux bash terminal to see if it makes any difference, and it does! The "sdes" field is now correct, but the "synopsis" field is still as shown above (as it was already before switching to a different terminal.) That would mean in conclusion that my Terminal might not by responsible for the encoding issue, at least not completely ... Thanks in advance, Robin Am 2022-06-03 11:36, schrieb Nicolas George: Robin van der Linden via ffmpeg-user (12022-06-03): It seems that ffprobe does not render special characters the right way for that field. ffprobe does not do any rendering, it writes the text to its standard outputs, the task of rendering falls on whatever program is connected to the outputs. It seems your problem is that your terminal does not work in UTF-8. But you did not say which terminal you use, so I cannot help further. Regards, -- Grüße / Kind regards, Robin van der Linden 0x257F9C8D.asc Description: application/pgp-keys ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] ffprobe does not render sdes tag field properly
Hello, I'm using ffprobe to read various metadata from my video files. One of these fields is called "sdes" and represents a TV-Show description. You will only see this filed if your command contains "-export_all" for example: "ffprobe -print_format json -export_all true -show_programs -show_streams -show_format -loglevel quiet -hide_banner " It seems that ffprobe does not render special characters the right way for that field. If the content of that field contains special chars, these will get rendered wrong. TO give you a better example, please see the following text comparison: This is the content I save to the file: After stealing the Tesseract during the events of “Avengers: Endgame,” an alternate version of Loki is brought to the mysterious Time Variance Authority, a bureaucratic organization that exists outside of time and space and monitors the timeline. They give Loki a choice: face being erased from existence due to being a “time variant” or help fix the timeline and stop a greater threat. @!"§$%&/() This is what the ffprobe command from above outputs: After stealing the Tesseract during the events of ÔÇ£Avengers: Endgame,ÔÇØ an alternate version of Loki is brought to the mysterious Time Variance Authority, a bureaucratic organization that exists outside of time and space and monitors the timeline. They give Loki a choice: face being erased from existence due to being a ÔÇ£time variantÔÇØ or help fix the timeline and stop a greater threat. \r\n@!\"┬º$%&/() Where does this issue come from? To me, it seems like an encoding issue. Can somebody help? -- Kind regards and thanks in advance, Robin Linden 0x257F9C8D.asc Description: application/pgp-keys ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
