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How to properly configure FFmpeg with libsvtav1 parameters to achieve smaller file sizes than H.264 ? [closed]
27 avril, par Satyam Manoj SinghI'm implementing a video transcoding pipeline using FFmpeg's libsvtav1 encoder, but encountering unexpected results when trying to batch process 10 H.264 videos (each ~5 minutes).
Current Implementation:
// Command line implementation ffmpeg -i input.mp4 -c:v libsvtav1 -crf 24 -y output_crf24.mp4 // Also tried ffmpeg -i input.mp4 -c:v libsvtav1 -crf 30 -y output_crf30.mp4
Problem: Despite using CRF values that should theoretically reduce file size (24 and 30), all resulting AV1 files are larger than their H.264 originals: Original (H.264):
Resolution: 1280x960 Bitrate: ~1463 kb/s FFprobe: Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x960, 1460 kb/s, 30 fps
Encoded (AV1 CRF 24):
Bitrate: ~1503 kb/s FFprobe: Stream #0:0: Video: av1 (Main), yuv420p, 1280x960, 1501 kb/s, 30 fps encoder: Lavc62.0.101 libsvtav1
What I've tried:
Different CRF values (24, 30) Default preset settings
What additional parameters or coding approaches should I implement to properly configure libsvtav1 for achieving the expected file size reduction while maintaining reasonable quality? Are there specific preset options or parameters I'm missing in my implementation?
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Error installing ffmpeg-kit-ios-full-gpl (ios) , requested URL returned error : 404
26 avril, par codnix devI am using this library in my project :- ffmpeg_kit_flutter_full_gpl: ^6.0.3. I am getting the error :- when trying to run pod install it show that it cannot already find the link where to download the zip file and responded 404
usr/bin/curl -f -L -o /var/folders/0q/cmpgdyp97dlf1ljyc63g71lm0000hy/T/d20250402-65474-7s1bkn/file.zip https://github.com/arthenica/ffmpeg-kit/releases/download/v6.0/ffmpeg-kit-full-gpl-6.0-ios-xcframework.zip --create-dirs --netrc-optional --retry 2 -A 'CocoaPods/1.16.2 cocoapods-downloader/2.1'.
The requested URL returned error: 404.
This error occurs only during the installation of the POD file.
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Convert .png segment of HLS to mp3
25 avril, par MaximI have url of HLS:
It contains links to segments:
#EXTM3U #EXT-X-VERSION:3 #EXT-X-TARGETDURATION:6 #EXT-X-PLAYLIST-TYPE:VOD #EXTINF:6, https://9str-rd.playm4u.xyz/9str-rd-tp1v1/1080/642bce856edd7cab511931a2/cdebe91fd08cdb6d79827cca6c41007927d1e7a824e88d90e17fc925d914a006873ed08c7ecb7107e7a72b810e66a2cf/0292b734e3b0d7dacb586869beac1f91281543d90d0496d24f01bbaf70c971c37bc9a36794c836b2cc1c80b4c82aff3e/53616c7465645f5f3ec139a78aff102a8e3a3c62ae8f3826f32bf6f19ea4b1fb/1735825697/96902c1c0db5b15f08a07d5264361f76 #EXTINF:6, https://9str-rd.playm4u.xyz/9str-rd-tp1v1/1080/642bce856edd7cab511931a2/cdebe91fd08cdb6d79827cca6c41007927d1e7a824e88d90e17fc925d914a0066544f42d5295cd71e2423a54702ca79a/0292b734e3b0d7dacb586869beac1f91281543d90d0496d24f01bbaf70c971c3fa2a9b2a1346c4d1e2dc5c86583c6eca67d125b9be8ecfee724eea988e5948be/53616c7465645f5f3ec139a78aff102a8e3a3c62ae8f3826f32bf6f19ea4b1fb/1735825697/8e029c34700e193599b52db66deeb735 ... #EXTINF:6, https://9str-rd.playm4u.xyz/9str-rd-tp1v1/1080/642bce856edd7cab511931a2/cdebe91fd08cdb6d79827cca6c41007923834b9bbcad67c4f65be31cff40707486e081644f595435073518177e606a22/0292b734e3b0d7dacb586869beac1f91281543d90d0496d24f01bbaf70c971c3ddcf230599d82c80aa1c0d846a87eccbd425fffb2434464a4aea5eecb13bf477/53616c7465645f5f3ec139a78aff102a8e3a3c62ae8f3826f32bf6f19ea4b1fb/1735825697/63ae374ce1012f9b702a082f691edfd8 #EXTINF:2.24, https://9str-rd.playm4u.xyz/9str-rd-tp1v1/1080/642bce856edd7cab511931a2/cdebe91fd08cdb6d79827cca6c41007923834b9bbcad67c4f65be31cff407074bce293bef2086d37ff74c808d35023d5/0292b734e3b0d7dacb586869beac1f91281543d90d0496d24f01bbaf70c971c3514fc67bd369ecc7b2b8d0fa501094d2da0625e9796bde32b6f9a9cb5d278ec3/53616c7465645f5f3ec139a78aff102a8e3a3c62ae8f3826f32bf6f19ea4b1fb/1735825697/ae04e0aa6d021a973852ee444489eec0 #EXT-X-ENDLIST
I can download any segment and play it using ExoPlayer in Android, but I can't convert it to mp3 or mp4 using ffmpeg.
For example this command:
ffmpeg -i /Users/user1/Downloads/response0.png /Users/user1/Downloads/response0.mp3
returns this:
libavutil 59. 39.100 / 59. 39.100 libavcodec 61. 19.100 / 61. 19.100 libavformat 61. 7.100 / 61. 7.100 libavdevice 61. 3.100 / 61. 3.100 libavfilter 10. 4.100 / 10. 4.100 libswscale 8. 3.100 / 8. 3.100 libswresample 5. 3.100 / 5. 3.100 libpostproc 58. 3.100 / 58. 3.100 Input #0, png_pipe, from '/Users/user1/Downloads/response0.png': Duration: N/A, bitrate: N/A Stream #0:0: Video: png, ya8(pc, gbr/unknown/unknown), 1x1, 25 fps, 25 tbr, 25 tbn Output #0, mp3, to '/Users/user1/Downloads/response0.mp3': [out#0/mp3 @ 0x7fe879206b00] Output file does not contain any stream Error opening output file /Users/user1/Downloads/response0.mp3. Error opening output files: Invalid argument
(response0.png is the first downloaded segment from hls)
I think that "Stream #0:0: Video: png ..." means that this file is in png format, and it does not have audio track. But it has audio track, because I can play it.
Probably segments are in some non-standard format, but how to find out what format is it?
PS1
Link to response0.png:
https://i.sstatic.net/pajvO7fg.png
or
https://drive.google.com/file/d/1i-LERY8kEYVZgS8mX9mCoMWd3To4Fk2T/view?usp=sharing
PS2
This command:
file /Users/user1/Downloads/response0.png
returns this:
/Users/user1/Downloads/response0.png: PNG image data, 1 x 1, 8-bit gray+alpha, non-interlaced
PS3:
This command:
xxd /Users/user1/Downloads/response0.png | head -4
returns this:
/Users/user1/Downloads/response0.png: PNG image data, 1 x 1, 8-bit gray+alpha, non-interlaced user1@MBP-Maxim-2 temp % xxd /Users/user1/Downloads/response0.png | head -4 00000000: 8950 4e47 0d0a 1a0a 0000 000d 4948 4452 .PNG........IHDR 00000010: 0000 0001 0000 0001 0804 0000 00b5 1c0c ................ 00000020: 0200 0000 0b49 4441 5478 da63 64f8 0f00 .....IDATx.cd... 00000030: 0105 0101 2718 e366 0000 0000 4945 4e44 ....'..f....IEND
PS4:
web-page with video:
https://ww2.movie123.club/watch/tci7-pulp-fiction-1994-movie-online-free-123movies.html
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How to Install ffmpeg on aws lambda machine ?
25 avril, par Martin BlausteinI'm trying to run a node js script on AWS lambda that uses ffmpeg. To do this, I need to install ffmpeg on the machine itself.
I have looked through the documentation but I could not find how to connect to the machine that runs the lambda.
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Remove Rotate metadata from mp4
25 avril, par mbajurI'm trying to remove or modify a
rotate
param from my mp4 file using ffmpeg. Based on some google results, i've ended up with such command (i've tried a few more but none of them worked):$ ffmpeg -i ./source.mp4 -metadata rotate=0 ./output.mp4
But it's not working at all. The
rotate=270
metadata param is still there in the output file. Can you please advise me on how it should be done?I'm using
ffmpeg version 1.2.4 Copyright (c) 2000-2013 the FFmpeg developers built on Dec 9 2013 20:00:03 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn) configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
Output:
ffmpeg version 1.2.4 Copyright (c) 2000-2013 the FFmpeg developers built on Dec 9 2013 20:00:03 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn) configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid libavutil 52. 18.100 / 52. 18.100 libavcodec 54. 92.100 / 54. 92.100 libavformat 54. 63.104 / 54. 63.104 libavdevice 54. 3.103 / 54. 3.103 libavfilter 3. 42.103 / 3. 42.103 libswscale 2. 2.100 / 2. 2.100 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 2.100 / 52. 2.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/michal/Downloads/mp4_c8ffe9a587b126f152ed3d89a146b445.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf54.63.104 Duration: 00:00:13.80, start: 0.021333, bitrate: 437 kb/s Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 313 kb/s, 7.50 fps, 7.50 tbr, 15360 tbn, 15 tbc Metadata: rotate : 270 handler_name : VideoHandler Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 134 kb/s Metadata: handler_name : SoundHandler File '/Users/michal/Desktop/mp4.mp4' already exists. Overwrite ? [y/N] y using SAR=1/1 [libx264 @ 0x7fb17b01ec00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 [libx264 @ 0x7fb17b01ec00] profile High, level 2.2 [libx264 @ 0x7fb17b01ec00] 264 - core 125 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: 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=6 lookahead_threads=1 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=7 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 Output #0, mp4, to '/Users/michal/Desktop/mp4.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 rotate : 0 encoder : Lavf54.63.104 Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 15360 tbn, 7.50 tbc Metadata: rotate : 270 handler_name : VideoHandler Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s Metadata: handler_name : SoundHandler Stream mapping: Stream #0:0 -> #0:0 (h264 -> libx264) Stream #0:1 -> #0:1 (aac -> libfaac) Press [q] to stop, [?] for help frame= 99 fps= 39 q=32766.0 Lsize= 730kB time=00:00:13.80 bitrate= 433.1kbits/s video:497kB audio:226kB subtitle:0 global headers:0kB muxing overhead 0.821272% [libx264 @ 0x7fb17b01ec00] frame I:8 Avg QP:14.85 size: 11183 [libx264 @ 0x7fb17b01ec00] frame P:68 Avg QP:17.68 size: 5348 [libx264 @ 0x7fb17b01ec00] frame B:23 Avg QP:18.26 size: 2419 [libx264 @ 0x7fb17b01ec00] consecutive B-frames: 53.5% 46.5% 0.0% 0.0% [libx264 @ 0x7fb17b01ec00] mb I I16..4: 31.9% 55.9% 12.1% [libx264 @ 0x7fb17b01ec00] mb P I16..4: 8.2% 9.1% 0.3% P16..4: 54.3% 13.0% 7.6% 0.0% 0.0% skip: 7.4% [libx264 @ 0x7fb17b01ec00] mb B I16..4: 0.2% 0.2% 0.0% B16..8: 49.9% 4.0% 0.3% direct: 8.6% skip:36.8% L0:45.5% L1:50.9% BI: 3.6% [libx264 @ 0x7fb17b01ec00] 8x8 transform intra:53.3% inter:90.4% [libx264 @ 0x7fb17b01ec00] coded y,uvDC,uvAC intra: 41.7% 90.1% 55.3% inter: 23.9% 56.7% 7.1% [libx264 @ 0x7fb17b01ec00] i16 v,h,dc,p: 12% 20% 10% 59% [libx264 @ 0x7fb17b01ec00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 20% 28% 8% 8% 4% 8% 5% 5% [libx264 @ 0x7fb17b01ec00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 23% 18% 6% 11% 5% 8% 3% 3% [libx264 @ 0x7fb17b01ec00] i8c dc,h,v,p: 57% 22% 18% 4% [libx264 @ 0x7fb17b01ec00] Weighted P-Frames: Y:5.9% UV:0.0% [libx264 @ 0x7fb17b01ec00] ref P L0: 61.2% 2.2% 23.5% 12.5% 0.6% [libx264 @ 0x7fb17b01ec00] ref B L0: 74.2% 25.8% [libx264 @ 0x7fb17b01ec00] kb/s:308.34