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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 Singh

    I'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?

  • Error installing ffmpeg-kit-ios-full-gpl (ios) , requested URL returned error : 404

    26 avril, par codnix dev

    I 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.

  • Convert .png segment of HLS to mp3

    25 avril, par Maxim

    I have url of HLS:

    https://9str-m3u8-play-021024.playm4u.xyz/m3u8/tp1-rdv1/1080/642bce856edd7cab511931a2/647af249adaf446b461a374e/53616c7465645f5f3ec139a78aff102a8e3a3c62ae8f3826f32bf6f19ea4b1fb/1735825697/2a2415eaeec82cbf16cebbf974a372e0

    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

  • How to Install ffmpeg on aws lambda machine ?

    25 avril, par Martin Blaustein

    I'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.

  • Remove Rotate metadata from mp4

    25 avril, par mbajur

    I'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

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