[FFmpeg-user] Windows FFMPEG Playback
Hello FFmpeg team, I am trying to find the most optimized method using FFMPEG or FFPLAY to playback videos on Windows and Intel architecture. I have tried ffplay (see below) and it utilizes too much CPU so I am suspecting color conversion is being done on the CPU instead of offloaded to the GPU/MFX. I've tried several commands but they either do not work or are not fully utilizing the iGPU as expected. Any help would be appreciated. Thank you. ffplay -i my4K60Video.mp4 Yields 0% for Video Decode (not what I want). ffplay -codec:v:1 h264_qsv -i %videoFile% Shows Video Decode usage and 3D/GPGPU usage which is better but still not using MFX/VPP engine for color conversion I have tried FFmpeg instead where there are more options to specify DXVA or QSV but still no luck. ffmpeg -hwaccel qsv -c:v h264_qsv -i %videoFile% -vf vpp_qsv=format=rgb32 -pix_fmt rgb32 -f sdl2 - Shows Video Decode usage and 3D/GPGPU usage still like above. Lots of CPU usage as well likely because of the -pix_fmt but removing this on Windows produces an error "AVHWFramesContext...] Unsupported pixel format: bgra ffmpeg -hwaccel dxva2 -hwaccel_output_format dxva2_vld -i %videoFile% -vf format=rgba,hwdownload -pix_fmt rgb32 -f sdl2 - Tried creating a dxva2 pipeline but unable to get it to work. This command produces an error: Impossible to convert between the formats supported by the filter 'graph 0 input from stream 0:0' and the filter 'auto_scaler_0' ___ 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] Preserving PAL 720x576 resolution
Am Di., 13. Apr. 2021 um 12:48 Uhr schrieb Erik Dobberkau : > > > Is your input really 720x576 or is it maybe interlaced content > > encoded as two separate frames with height 288? This is not > > yet supported by FFmpeg at all without filter insertion, it is > > possible that we will never write such atrocities. > Like it or not, it's a SMPTE standard (doesn't make it "right", but a > whopping lot of people abide by it, therefore it has relevance in real > life), which specifies to either wrap every field (i.e. half-frame) into > its own KLV set (labeled as I1) or both into one (labeled ad I2). The first > produces a valid Picture Item using a pair of its KLVs, the second only > needs one, obviously. I've seen I1 more often than I2. > (There's a third version for "interlaced essence" called F1 which I've not > yet had to deal with.) I don't like it, I definitely do not doubt the relevance (I did look into the issue several times), I just want to point out that once the issue is fixed (from our pov), it is possible that the requested feature (remuxing of "interlaced" j2k) will still not work, and never will. Otoh, it may be possible to only fix the remuxing without supporting the content;-( (the worst case, imo) 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".
Re: [FFmpeg-user] Preserving PAL 720x576 resolution
Am Di., 13. Apr. 2021 um 17:25 Uhr schrieb Carl Zwanzig : > > On 4/13/2021 12:48 AM, Kieran O Leary wrote: > > The developer of mediainfo, as mediainfo output was included. > > Cool, so completely irrelevant* to the question; that or we start > "blaming" every developer for their program's output. Given how much I respect and like Jérôme I did not want to blame anybody, I made a joke (that some people enjoyed). > *only important if MI and ffmpeg report contradicting info for the same > data, and I think that's unlikely here This is a very surprising comment about a long-time bug that nobody wants to deal with, in addition to the fact that MediaInfo and FFmpeg use different semantics for "interlaced". (Sadly no joke this time) 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".
Re: [FFmpeg-user] Change in video length and loss of audio sync
Am Di., 13. Apr. 2021 um 22:18 Uhr schrieb Michael Koch : > > Am 13.04.2021 um 21:53 schrieb John Harlow via ffmpeg-user: > > RES1=`nice -20 cpulimit -l 400 /usr/bin/ffmpeg -y -hide_banner -loglevel > > verbose -r 29.97 -i "$TMP" \ > > I'm not sure, but doesn't the -r option before the input overwrite the > framerate of the input? Yes, the input option -r is meant to break A/V sync. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Change in video length and loss of audio sync
Am 13.04.2021 um 21:53 schrieb John Harlow via ffmpeg-user: RES1=`nice -20 cpulimit -l 400 /usr/bin/ffmpeg -y -hide_banner -loglevel verbose -r 29.97 -i "$TMP" \ I'm not sure, but doesn't the -r option before the input overwrite the framerate of the input? Michael ___ 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 convert video.ts to video.mp4 efficiently?
On 13/04/2021, Bo Berglund wrote: > $ ffmpeg -i 2021-04-13_input09.ts -vf -c:v libx264 -preset fast -crf 20 -c:a > copy 2021-04-13_input09.mp4 Read the command line better. You have "-vf -c:v" in there so it thinks "libx264" is an output file you want. It cannot guess what format that should be so shows you that error. To address your original point, using "-c copy" is an idea if you just want to change the ts container into an mp4 container. No costly encoder required but you cannot change the properties of the video stream such as the size. ___ 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] Change in video length and loss of audio sync
Hi: I have a large number of videos I am converting to a standardized HLS video with a particular format and frame rate and I’ve automated the process. The source videos are in many different formats (16:9, 4:3), densities 720, 1080, 480 and frame rates. After it completed and I tested the videos I found that about 6% of them were shortened and lost audio/video sync in the conversion. They also take an inordinately long time to start streaming. Examining the source videos, it seems that many of them were at unusual frame rates (like15, 24, 25…) I’ve put a test mp4 that I sourced from and the resulting m3u8 video up in http://ipziptv.com/testing/test.mp4 and http://iziptv.com/testing/video.m3u8 Below is mediainfo on the source video (263.8 seconds long) and the converted m3u8 video (220 seconds long), the script I converted with and the ffmpeg output. Any advice on how I can successfully convert these would be appreciated. ==Start of output= Here is mediainfo’s view of that mp4. You can see that (for some reason) it is at 25FPS. mediainfo test.mp4 General Complete name: test.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size: 46.9 MiB Duration : 4 min 23 s Overall bit rate : 1 491 kb/s Writing application : Lavf57.83.100 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L3.1 Format settings : CABAC / 4 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames: 4 frames Codec ID : avc1 Codec ID/Info: Advanced Video Coding Duration : 4 min 23 s Bit rate : 1 354 kb/s Width: 1 280 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 25.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth: 8 bits Scan type: Progressive Bits/(Pixel*Frame) : 0.059 Stream size : 42.6 MiB (91%) Writing library : x264 core 148 r2795 aaa9aa8 Encoding settings: cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=22 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00 Codec configuration box : avcC Audio ID : 2 Format : AAC LC Format/Info : Advanced Audio Codec Low Complexity Codec ID : mp4a-40-2 Duration : 4 min 23 s Bit rate mode: Constant Bit rate : 132 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate: 48.0 kHz Frame rate : 46.875 FPS (1024 SPF) Compression mode : Lossy Stream size : 4.10 MiB (9%) Language : English Default : Yes Alternate group : 1 Here is mediainfo’s view of the first segment of the m3u8. You can see that it is at 29.97FPS. mediainfo video.ts General ID : 1 (0x1) Complete name: video.ts Format : MPEG-TS File size: 1.53 MiB Duration : 5 s 939 ms Overall bit rate mode: Variable Overall bit rate : 2 143 kb/s Video ID
Re: [FFmpeg-user] How to convert video.ts to video.mp4 efficiently?
On 4/13/21, 11:11 AM, "ffmpeg-user on behalf of Bo Berglund" wrote: On Tue, 13 Apr 2021 18:02:04 +0200, Bo Berglund wrote: [NULL @ 0x5614c4007400] Unable to find a suitable output format for 'libx264' libx264: Invalid argument So I am clearly doing something wrong here, but what? How do I specify an output format? I did not do that in the original command where the size was also changed and it still made the mp4 format... Maybe you would benefit from using “h264_videotoolbox” rather than “libx264”. Could you provide an example .ts video? Laine Lee ___ 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] Issue affecting ffmpeg and youtube-dl
On Tue, Apr 13, 2021 at 11:47 AM Paul B Mahol wrote: > Please try setts bitstream filter. > > It is specifically designed for such videos. > > Actually I tested setts bitstream filter with broken youtube files. > Understood. I will relay this to youtube-dl's github. ___ 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] Issue affecting ffmpeg and youtube-dl
Please try setts bitstream filter. It is specifically designed for such videos. Actually I tested setts bitstream filter with broken youtube files. On Tue, Apr 13, 2021 at 12:18 AM Carl Eugen Hoyos wrote: > Am Mo., 12. Apr. 2021 um 23:46 Uhr schrieb JD : > > > > Noted. > > > > >While there, please find out what top-posting means and avoid it here. > > > > Here is the output: > > > > Y:\youtube-dl>ffmpeg -y -loglevel "repeat+info" -i "file:deltron - > > Videos\LIGHTSKINJOHN - only - MakTbhIZ5zo.f302.webm" -i "file:deltron - > > Videos\LIGHTSKINJOHN - only - MakTbhIZ5zo.f251.webm" -c copy -map "0:v:0" > > -map "1:a:0" "file:deltron - Videos\LIGHTSKINJOHN - only - > > MakTbhIZ5zo.temp.webm" > > ffmpeg version 2021-02-16-git-8331eb058d-full_build-www.gyan.dev > Copyright > > (c) 2000-2021 the FFmpeg developers > > built with gcc 10.2.0 (Rev6, Built by MSYS2 project) > > configuration: --enable-gpl --enable-version3 --enable-static > > --disable-w32threads --disable-autodetect --enable-fontconfig > > --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp > --enable-lzma > > --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh > > --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca > > --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e > > --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 > > --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx > > --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi > > --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf > > --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec > > --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx > > --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio > > --enable-libgme --enable-libmodplug --enable-libopenmpt > > --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine > > --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc > > --enable-libilbc --enable-libgsm --enable-libopencore-amrnb > > --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa > > --enable-libbs2b --enable-libflite --enable-libmysofa > > --enable-librubberband --enable-libsoxr --enable-chromaprint > > libavutil 56. 65.100 / 56. 65.100 > > libavcodec 58.123.100 / 58.123.100 > > libavformat58. 67.100 / 58. 67.100 > > libavdevice58. 12.100 / 58. 12.100 > > libavfilter 7.107.100 / 7.107.100 > > libswscale 5. 8.100 / 5. 8.100 > > libswresample 3. 8.100 / 3. 8.100 > > libpostproc55. 8.100 / 55. 8.100 > > Input #0, matroska,webm, from 'file:deltron - Videos\LIGHTSKINJOHN - > only - > > MakTbhIZ5zo.f302.webm': > > Metadata: > > encoder : google/video-file > > http://youtube.com/streaming/otf/durations/112015: Segment-Count: 17 > > : Segment-Durations-Ms: > > > 5339,5338,5339(r=1),5338,5339(r=1),5338,5339(r=1),5338,5339(r=1),5338,5339(r=1),901, > > : > > : > > Duration: N/A, start: 0.00, bitrate: N/A > > Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv, > > bt709/unknown/unknown), 1280x720, SAR 1:1 DAR 16:9, 59.94 fps, 59.94 tbr, > > 1k tbn, 1k tbc (default) > > Input #1, matroska,webm, from 'file:deltron - Videos\LIGHTSKINJOHN - > only - > > MakTbhIZ5zo.f251.webm': > > Metadata: > > encoder : google/video-file > > Duration: 00:01:26.40, start: -0.007000, bitrate: 141 kb/s > > Stream #1:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default) > > Output #0, webm, to 'file:deltron - Videos\LIGHTSKINJOHN - only - > > MakTbhIZ5zo.temp.webm': > > Metadata: > > http://youtube.com/streaming/otf/durations/112015: Segment-Count: 17 > > : Segment-Durations-Ms: > > > 5339,5338,5339(r=1),5338,5339(r=1),5338,5339(r=1),5338,5339(r=1),5338,5339(r=1),901, > > : > > : > > encoder : Lavf58.67.100 > > Stream #0:0(eng): Video: vp9 (Profile 0), yuv420p(tv, > > bt709/unknown/unknown), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 59.94 fps, > > 59.94 tbr, 1k tbn, 1k tbc (default) > > Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp (default) > > Stream mapping: > > Stream #0:0 -> #0:0 (copy) > > Stream #1:0 -> #0:1 (copy) > > Press [q] to stop, [?] for help > > [webm @ 02372e6c47c0] Application provided invalid, non monotonically > > increasing dts to muxer in stream 0: 5355 >= 5339 > > av_interleaved_write_frame(): Invalid argument > > frame= 323 fps=0.0 q=-1.0 Lsize= 906kB time=00:00:05.36 > > bitrate=1384.3kbits/s speed=61.2x > > video:825kB audio:89kB subtitle:0kB other streams:0kB global headers:0kB > > muxing overhead: unknown > > Conversion failed! > > I can reproduce the issue with the following command: > $ ffmpeg -i LIGHTSKINJOHN\ -\ only-MakTbhIZ5zo.f302.webm -c copy out.webm > > The issue is not reproducible with "-ss 6", I don't know if
Re: [FFmpeg-user] audio normalization - nth attempt
Paul B Mahol wrote: > Try alt boundary option, b=1, that will prevent fades after > seek/start. Thanks, will try. n + 1 -- underground experts united https://dataswamp.org/~incal ___ 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] audio normalization - nth attempt
On Tue, Apr 13, 2021 at 7:42 AM Emanuel Berg wrote: > Paul B Mahol wrote: > > >>> One problem with just af=dynaudnorm is that when you > >>> backtrack to play a sequence again the volume drops so > >>> much you don't hear anything, almost, until it picks up > >>> much later. > >> > >> This helps for that > >> > >> af=dynaudnorm=g=7 > > > > That enables very agressive compression. > > Please visit Uppsala, Sweden, we'll watch 4K Ultra HD > "Mission Impossible 6: Fallout" together with and without it. > With it, works great. Without it, you barely hear what the > say (you don't hear what they say) yet 5s later, firefight > BOOM BOOM BOOM with dramatic music and the building wakes up. > > > Have you ever read documentation of dynaudnorm filter, the > > ffmpeg one or the original one? > > I don't know, I have read ffmpeg-filters(1) lines 2885-2899 > and 2918-2935. > Try alt boundary option, b=1, that will prevent fades after seek/start. > > -- > underground experts united > https://dataswamp.org/~incal > ___ 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 convert video.ts to video.mp4 efficiently?
On 4/13/2021 9:11 AM, Bo Berglund wrote: How do I specify an output format? I did not do that in the original command where the size was also changed and it still made the mp4 format... Not to be unkind, but have you read the man page for ffmpeg? -f fmt (input/output) Force input or output file format. The format is normally auto detected for input files and guessed from the file extension for output files, so this option is not needed in most cases. If you call the output file fred.mp4, without saying otherwise you're going to get an mp4 file. Please read up on all of the options you're using- for instance, -vf without a filtergraph is meaningless. z! ___ 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 convert video.ts to video.mp4 efficiently?
On Tue, 13 Apr 2021 18:02:04 +0200, Bo Berglund wrote: >[NULL @ 0x5614c4007400] Unable to find a suitable output format for 'libx264' >libx264: Invalid argument > > >So I am clearly doing something wrong here, but what? > How do I specify an output format? I did not do that in the original command where the size was also changed and it still made the mp4 format... -- Bo Berglund Developer in Sweden ___ 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 convert video.ts to video.mp4 efficiently?
On Tue, 13 Apr 2021 17:49:55 +0200, Bo Berglund wrote: >Question: >Is there a quicker way to just go from ts to mp4 so the file format is OK even >though the video size remains at 1280x720? > >(I could live with the size even though the disk storage takes a hit...) >Do I just take away this argument: > >scale=w=-4:h=%VSIZE% > I tried this on my Ubuntu box rather than on teh Windows PC I asked about: It failed in a way I don't understand: $ ffmpeg -i 2021-04-13_input09.ts -vf -c:v libx264 -preset fast -crf 20 -c:a copy 2021-04-13_input09.mp4 ffmpeg version 4.3.2-0york0~18.04 Copyright (c) 2000-2021 the FFmpeg developers built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04) configuration: --prefix=/usr --extra-version='0york0~18.04' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libzimg --enable-pocketsphinx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared libavutil 56. 51.100 / 56. 51.100 libavcodec 58. 91.100 / 58. 91.100 libavformat58. 45.100 / 58. 45.100 libavdevice58. 10.100 / 58. 10.100 libavfilter 7. 85.100 / 7. 85.100 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 7.100 / 5. 7.100 libswresample 3. 7.100 / 3. 7.100 libpostproc55. 7.100 / 55. 7.100 Input #0, mpegts, from '2021-04-13_input09.ts': Duration: 01:06:00.10, start: 1.40, bitrate: 2787 kb/s Program 1 Metadata: service_name: Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720, 30 fps, 30 tbr, 90k tbn, 60 tbc Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 165 kb/s [NULL @ 0x5614c4007400] Unable to find a suitable output format for 'libx264' libx264: Invalid argument So I am clearly doing something wrong here, but what? -- Bo Berglund Developer in Sweden ___ 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 convert video.ts to video.mp4 efficiently?
On 4/13/2021 8:49 AM, Bo Berglund wrote: set COMMAND=ffmpeg -hide_banner -i %INFILE% -vf scale=w=-4:h=%VSIZE% -c:v libx264 -preset fast -crf 20 -c:a copy %OUTFILE% a) you should add " -movflags +faststart" if writing to an mp4 file b) always post the complete command _and_ it's output without -hide_banner c) always use the latest ffmpeg build for testing (pls read the list FAQ- https://ffmpeg.org/mailing-list-faq.html This works but it takes about 10 min to convert one 44 min video and meanwhile the PC runs at almost 100% CPU load. That could be expected, we don't know anything about your PC. Also, some steps can use multiple cpu cores and some can't. Question: Is there a quicker way to just go from ts to mp4 so the file format is OK even though the video size remains at 1280x720 Probably not, you're changing the codec so have to decode/encode the file and that just takes time & effort. z! ___ 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 convert video.ts to video.mp4 efficiently?
I am downloading video streams from a source that does not suppy alternate resolutions and is only sending a ts stream. So the result is that the downloaded files have these problems: 1) They are the original resolution: 1280x720 px but I prefer a 480p size 2) They are in ts format rather than mp4 When I want to view them through my website I need them to be in mp4 format as well as smaller in size (both pixel resolution and file size on disk). So with advice from here and some other places I have composed the following commands in my batch script to do the conversion: SET VSIZE=%~1 SET INFILE=%~2 SET OUTFILE=%~3 set COMMAND=ffmpeg -hide_banner -i %INFILE% -vf scale=w=-4:h=%VSIZE% -c:v libx264 -preset fast -crf 20 -c:a copy %OUTFILE% %COMMAND% This works but it takes about 10 min to convert one 44 min video and meanwhile the PC runs at almost 100% CPU load. Question: Is there a quicker way to just go from ts to mp4 so the file format is OK even though the video size remains at 1280x720? (I could live with the size even though the disk storage takes a hit...) Do I just take away this argument: scale=w=-4:h=%VSIZE% Is there something else I can do? -- Bo Berglund Developer in Sweden ___ 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] Advice on getting help from ffmpeg-user list
On 4/13/2021 1:29 AM, Reindl Harald wrote: 99% of users simply have not the mentally capabilities to get a working snapshot compiled at all Sort of- Most of the users are just that, _users_; they're not developers and it's ridiculous to expect it. I don't think it's not having "mentally capabilities", more like not having the learning and experience (which is quite different) for something they really don't need to do. z! ___ 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] Preserving PAL 720x576 resolution
On 4/13/2021 12:48 AM, Kieran O Leary wrote: The developer of mediainfo, as mediainfo output was included. Cool, so completely irrelevant* to the question; that or we start "blaming" every developer for their program's output. *only important if MI and ffmpeg report contradicting info for the same data, and I think that's unlikely here z! ___ 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] Preserving PAL 720x576 resolution
> Is your input really 720x576 or is it maybe interlaced content > encoded as two separate frames with height 288? This is not > yet supported by FFmpeg at all without filter insertion, it is > possible that we will never write such atrocities. > > Carl Eugen > Like it or not, it's a SMPTE standard (doesn't make it "right", but a whopping lot of people abide by it, therefore it has relevance in real life), which specifies to either wrap every field (i.e. half-frame) into its own KLV set (labeled as I1) or both into one (labeled ad I2). The first produces a valid Picture Item using a pair of its KLVs, the second only needs one, obviously. I've seen I1 more often than I2. (There's a third version for "interlaced essence" called F1 which I've not yet had to deal with.) Best regards, Erik ___ 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] Advice on getting help from ffmpeg-user list
Am 12.04.21 um 23:40 schrieb Mark Filipak (ffmpeg): On 2021-04-12 17:19, Carl Eugen Hoyos wrote: Am Mo., 12. Apr. 2021 um 10:42 Uhr schrieb Jim DeLaHunt : 3. Use the current version of ffmpeg to reproduce your problem. Your output says, "ffmpeg version n3.0.1", but the current numbered version is 4.4. To make this as clear as possible: The only version supported on this mailing list is current FFmpeg git head, ask whoever offered you a release binary for support, they are responsible for it (and they know this). Carl Eugen Dear Carl Eugen, Re, "only version supported on this mailing list" This is the ffmpeg-user list. We are here to help each other. We're not here to help you. Kindly drop your attitude, please. he will never get it it's that simple: what others support and answer to is not your business and 99% of users simply have not the mentally capabilities to get a working snapshot compiled at all ___ 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] Preserving PAL 720x576 resolution
On Mon 12 Apr 2021 at 23:39, Mark Filipak (ffmpeg) wrote: > On 2021-04-12 18:02, Carl Eugen Hoyos wrote: > > Am Mo., 12. Apr. 2021 um 23:52 Uhr schrieb Carl Zwanzig : > >> > >> On 4/12/2021 2:42 PM, Carl Eugen Hoyos wrote: > >>> and since Matthew didn't mention "interlaced" > >> > >> Video (ORIGINAL) > >> Scan type: Interlaced > >> Scan order : Top Field First > >> > >> Yes, he did. > > > > I consider Jérôme and Matthew two different persons;-) > > Jerome? Who is Jerome? The developer of mediainfo, as mediainfo output was included. ___ 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".
