On 2025-09-08 07:51, Ferdi Scholten via ffmpeg-user wrote:
On 06-09-2025 23:44, Carlos E. R. via ffmpeg-user wrote:

It also clearly says to use the most recent if you can, 3.x is positively ancient! try something built in the last six months.

I have whatever the distribution provides. I have just looked and found ffmpeg-4, will try that one.


Please stop using antique versions....

FFmpeg is currently on version 8.0, use that or at least any of the 7.x series if you want support. These ancient versions are often feature incomplete or even incompatible for today's codecs. They don't get updated, only the occasional bugfix (like correcting typo's in the documentation....)

Also because of the fact that from version 7.0 the api has changed, breaking compatibility with older versions. Mostly since then, the speed has greatly increased (because of the new multithreading abilities) and support for modern codecs got a lot better.

I had no idea there was a version 8, now searching for it I see it.

As you say the api has changed, could you suggest a command line for doing the 
conversion? Similar to:


ffmpeg -i movie.mkv \
    -vf "scale=-1:802,format=yuv420p" -c:v libx264 -preset fast -crf 22 -tune 
fastdecode -profile:v main -c:a copy -c:s copy \
    output.mkv

but with 2 subtitle streams. I get audio not supported on VLC, and only one 
subtittle stream. On version 3 and 4, same line gets working audio, and one 
subtittle stream. Attempts to produce the two subtittles on version 4 killed 
the audio.


Tried also this concoction suggested by chatgpt, VLC also refuses to play the 
audio but generates the two subtittles:

ffmpeg -i movie.mkv -vf "scale=-1:802,format=yuv420p" -map 0 -c:v libx264 
-preset fast -crf 22 -tune fastdecode -profile:v main -c:a aac -b:a 192k -c:s copy 
-disposition:a:0 default 8c_movie.mkv



CLI outputs:

cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp> ffmpeg -t 10:0 -i movie.mkv -vf 
"scale=-1:802,format=yuv420p" \
-c:v libx264 -preset fast -crf 22 -tune fastdecode -profile:v main \
-c:a copy -c:s copy -c:s copy 8_movie.mkv
ffmpeg version 4.4.6 Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 7 (SUSE Linux)
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 
--incdir=/usr/include/ffmpeg --extra-cflags='-fmessage-length=0 
-grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong 
-funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' 
--optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall 
-D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables 
-fasynchronous-unwind-tables -fstack-clash-protection -g' --disable-htmlpages 
--enable-pic --disable-stripping --enable-shared --disable-static --enable-gpl 
--enable-version3 --enable-libsmbclient --disable-openssl --enable-avresample 
--enable-gnutls --enable-ladspa --enable-libass --enable-libbluray 
--enable-libbs2b --enable-libcelt --enable-libcdio --enable-libdav1d 
--enable-libdc1394 --enable-libdrm --enable-libfontconfig --enable-libfreetype 
--enable-libfribidi --enable-libgsm --enable-libjack --enable-libmp3lame 
--enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse 
--enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame 
--enable-libvidstab --enable-libvorbis --enable-libv4l2 --enable-libvpx 
--enable-libwebp --enable-libxml2 --enable-libzimg --enable-libzvbi 
--enable-vaapi --enable-vdpau --enable-version3 --enable-libfdk-aac-dlopen 
--enable-nonfree --enable-libvo-amrwbenc --enable-libx264 --enable-libx265 
--enable-librtmp --enable-libxvid
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Input #0, matroska,webm, from 'movie.mkv':
  Metadata:
    encoder         : libebml v1.4.2 + libmatroska v1.6.4
    creation_time   : 2022-05-15T21:04:13.000000Z
  Duration: 00:54:17.60, start: 0.000000, bitrate: 4608 kb/s
  Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv, bt709), 3840x1604, SAR 
1:1 DAR 960:401, 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc (default)
    Metadata:
      BPS             : 3966208
      DURATION        : 00:54:17.588000000
      NUMBER_OF_FRAMES: 78104
      NUMBER_OF_BYTES : 1615034142
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:1(eng): Audio: eac3, 48000 Hz, 5.1(side), fltp, 640 kb/s
    Metadata:
      BPS             : 640000
      DURATION        : 00:54:17.600000000
      NUMBER_OF_FRAMES: 101800
      NUMBER_OF_BYTES : 260608000
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:2(eng): Subtitle: subrip
    Metadata:
      BPS             : 79
      DURATION        : 00:52:31.318000000
      NUMBER_OF_FRAMES: 980
      NUMBER_OF_BYTES : 31376
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:3(eng): Subtitle: subrip (hearing impaired)
    Metadata:
      title           : SDH
      BPS             : 84
      DURATION        : 00:52:40.980000000
      NUMBER_OF_FRAMES: 1041
      NUMBER_OF_BYTES : 33504
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Multiple -c, -codec, -acodec, -vcodec, -scodec or -dcodec options specified for 
stream 2, only the last option '-c:s copy' will be used.
Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (copy)
  Stream #0:2 -> #0:2 (copy)
Press [q] to stop, [?] for help
[libx264 @ 0x55cfb07d2140] using SAR=1/1
[libx264 @ 0x55cfb07d2140] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 
AVX FMA3 BMI2 AVX2
[libx264 @ 0x55cfb07d2140] profile Main, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x55cfb07d2140] 264 - core 164 - H.264/MPEG-4 AVC codec - Copyleft 
2003-2023 - http://www.videolan.org/x264.html - options: cabac=0 ref=2 
deblock=0:0:0 analyse=0x1:0x111 me=hex subme=6 psy=1 psy_rd=1.00:0.00 
mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 
fast_pskip=1 chroma_qp_offset=-2 threads=18 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=0 
open_gop=0 weightp=0 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 
rc_lookahead=30 rc=crf mbtree=1 crf=22.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 
ip_ratio=1.40 aq=1:1.00
Output #0, matroska, to '8_movie.mkv':
  Metadata:
    encoder         : Lavf58.76.100
  Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p(tv, bt709, 
progressive), 1920x802 [SAR 1:1 DAR 960:401], q=2-31, 23.98 fps, 1k tbn 
(default)
    Metadata:
      BPS             : 3966208
      DURATION        : 00:54:17.588000000
      NUMBER_OF_FRAMES: 78104
      NUMBER_OF_BYTES : 1615034142
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      encoder         : Lavc58.134.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(eng): Audio: eac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), 
fltp, 640 kb/s
    Metadata:
      BPS             : 640000
      DURATION        : 00:54:17.600000000
      NUMBER_OF_FRAMES: 101800
      NUMBER_OF_BYTES : 260608000
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:2(eng): Subtitle: subrip
    Metadata:
      BPS             : 79
      DURATION        : 00:52:31.318000000
      NUMBER_OF_FRAMES: 980
      NUMBER_OF_BYTES : 31376
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
frame=14386 fps= 96 q=-1.0 Lsize=  205362kB time=00:09:59.96 
bitrate=2804.0kbits/s speed=4.02x
video:158239kB audio:46875kB subtitle:5kB other streams:0kB global headers:0kB 
muxing overhead: 0.118655%
[libx264 @ 0x55cfb07d2140] frame I:175   Avg QP:16.17  size: 73474
[libx264 @ 0x55cfb07d2140] frame P:4190  Avg QP:19.45  size: 20328
[libx264 @ 0x55cfb07d2140] frame B:10021 Avg QP:21.28  size:  6387
[libx264 @ 0x55cfb07d2140] consecutive B-frames:  5.7%  3.1%  3.6% 87.6%
[libx264 @ 0x55cfb07d2140] mb I  I16..4: 54.4%  0.0% 45.6%
[libx264 @ 0x55cfb07d2140] mb P  I16..4: 12.2%  0.0%  3.9%  P16..4: 36.1%  8.9% 
 3.8%  0.0%  0.0%    skip:35.1%
[libx264 @ 0x55cfb07d2140] mb B  I16..4:  4.1%  0.0%  0.4%  B16..8: 18.0%  3.1% 
 0.1%  direct:10.7%  skip:63.5%  L0:43.0% L1:49.6% BI: 7.5%
[libx264 @ 0x55cfb07d2140] coded y,uvDC,uvAC intra: 19.1% 56.1% 10.4% inter: 
3.8% 17.8% 0.4%
[libx264 @ 0x55cfb07d2140] i16 v,h,dc,p: 41% 24% 13% 22%
[libx264 @ 0x55cfb07d2140] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 19% 21%  6%  7%  
6%  6%  5%  4%
[libx264 @ 0x55cfb07d2140] i8c dc,h,v,p: 62% 17% 16%  5%
[libx264 @ 0x55cfb07d2140] ref P L0: 66.6% 33.4%
[libx264 @ 0x55cfb07d2140] ref B L0: 82.6% 17.4%
[libx264 @ 0x55cfb07d2140] ref B L1: 95.3%  4.7%
[libx264 @ 0x55cfb07d2140] kb/s:2160.42
cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp>
cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp>
cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp>
cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp> vlc 8_movie.mkv
VLC media player 3.0.21 Vetinari (revision 3.0.21-0-gdd8bfdbabe8)
[00005643dfd799a0] main libvlc: Running vlc with the default interface. Use 
'cvlc' to use vlc without interface.
[00005643dfe40eb0] main audio output error: too low audio sample frequency (0)
[00007f39dcf45a30] main decoder error: failed to create audio output
[00007f39dcf45a30] main decoder error: Codec `eac3' (A/52 B Audio (aka E-AC3)) is 
not supported.              <============
[00007f39dcc183f0] gstdecode decoder: got new caps video/x-raw, 
format=(string)NV12, width=(int)1920, height=(int)802, 
framerate=(fraction)250000/10427, interlace-mode=(string)progressive, 
pixel-aspect-ratio=(fraction)1/1, multiview-mode=(string)mono, 
multiview-flags=(GstVideoMultiviewFlagsSet)0:ffffffff:/right-view-first/left-flipped/left-flopped/right-flipped/right-flopped/half-aspect/mixed-mono,
 views=(int)2, chroma-site=(string)mpeg2, colorimetry=(string)bt709
[00007f3a2c008be0] gl gl: Initialized libplacebo v5.264.1 (API v264)
[00007f3a2c8d9200] deinterlace filter error: unknown or incompatible deinterlace mode 
"x" for packed format
cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp>



Media info:


cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp> mediainfo movie.mkv
General
Unique ID                                : 
271279799347578328510273573056556095920 (0xCC1696C14DD847778B2137B3485CD9B0)
Complete name                            : movie.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 1.75 GiB
Duration                                 : 54 min 17 s
Overall bit rate                         : 4 608 kb/s
Frame rate                               : 23.976 FPS
Encoded date                             : 2022-05-15 21:04:13 UTC
Writing application                      : mkvmerge v67.0.0 ('Under Stars') 
64-bit
Writing library                          : libebml v1.4.2 + libmatroska v1.6.4

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5@Main
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 54 min 17 s
Bit rate                                 : 3 966 kb/s
Width                                    : 3 840 pixels
Height                                   : 1 604 pixels
Display aspect ratio                     : 2.39:1
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.027
Stream size                              : 1.50 GiB (86%)
Writing library                          : x265 
3.5+12+14-106329cbd:[Windows][GCC 10.3.0][64 bit] 10bit
Encoding settings                        : cpuid=1111039 / frame-threads=2 / 
numa-pools=4 / wpp / no-pmode / no-pme / no-psnr / ssim / log-level=2 / 
input-csp=1 / input-res=3840x1604 / interlace=0 / total-frames=78104 / 
level-idc=0 / high-tier=1 / uhd-bd=0 / ref=3 / no-allow-non-conformance / 
no-repeat-headers / annexb / no-aud / no-eob / no-eos / no-hrd / info / hash=0 
/ no-temporal-layers / open-gop / min-keyint=23 / keyint=250 / gop-lookahead=0 
/ bframes=8 / b-adapt=2 / b-pyramid / bframe-bias=0 / rc-lookahead=80 / 
lookahead-slices=8 / scenecut=40 / no-hist-scenecut / radl=0 / no-splice / 
no-intra-refresh / ctu=64 / min-cu-size=8 / no-rect / no-amp / max-tu-size=32 / 
tu-inter-depth=1 / tu-intra-depth=1 / limit-tu=0 / rdoq-level=0 / 
dynamic-rd=0.00 / no-ssim-rd / signhide / no-tskip / nr-intra=0 / nr-inter=0 / 
no-constrained-intra / no-strong-intra-smoothing / max-merge=5 / limit-refs=3 / 
no-limit-modes / me=3 / subme=5 / merange=57 / temporal-mvp / no-frame-dup / 
no-hme / weightp / no-weightb / no-analyze-src-pics / deblock=0:0 / sao / 
no-sao-non-deblock / rd=3 / selective-sao=4 / early-skip / no-rskip / 
no-fast-intra / no-tskip-fast / no-cu-lossless / b-intra / no-splitrd-skip / 
rdpenalty=0 / psy-rd=2.00 / psy-rdoq=0.00 / no-rd-refine / no-lossless / 
cbqpoffs=0 / crqpoffs=0 / rc=crf / crf=20.0 / qcomp=0.60 / qpstep=4 / 
stats-write=0 / stats-read=0 / ipratio=1.40 / pbratio=1.30 / aq-mode=3 / 
aq-strength=1.00 / cutree / zone-count=0 / no-strict-cbr / qg-size=32 / 
no-rc-grain / qpmax=69 / qpmin=0 / no-const-vbv / sar=0 / overscan=0 / 
videoformat=5 / range=0 / colorprim=1 / transfer=1 / colormatrix=1 / 
chromaloc=0 / display-window=0 / cll=0,0 / min-luma=0 / max-luma=1023 / 
log2-max-poc-lsb=8 / vui-timing-info / vui-hrd-info / slices=1 / no-opt-qp-pps 
/ no-opt-ref-list-length-pps / no-multi-pass-opt-rps / scenecut-bias=0.05 / 
hist-threshold=0.03 / no-opt-cu-delta-qp / no-aq-motion / no-hdr10 / 
no-hdr10-opt / no-dhdr10-opt / no-idr-recovery-sei / analysis-reuse-level=0 / 
analysis-save-reuse-level=0 / analysis-load-reuse-level=0 / scale-factor=0 / 
refine-intra=0 / refine-inter=0 / refine-mv=1 / refine-ctu-distortion=0 / 
no-limit-sao / ctu-info=0 / no-lowpass-dct / refine-analysis-type=0 / 
copy-pic=1 / max-ausize-factor=1.0 / no-dynamic-refine / no-single-sei / 
no-hevc-aq / no-svt / no-field / qp-adaptation-range=1.00 / scenecut-aware-qp=0 
/ conformance-window-right-offset=0 / conformance-window-bottom-offset=0 / 
decoder-max-rate=0 / no-vbv-live-multi-pass
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 2
Format                                   : E-AC-3
Format/Info                              : Enhanced AC-3
Commercial name                          : Dolby Digital Plus
Codec ID                                 : A_EAC3
Duration                                 : 54 min 17 s
Bit rate mode                            : Constant
Bit rate                                 : 640 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C LFE Ls Rs
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 249 MiB (14%)
Language                                 : English
Service kind                             : Complete Main
Default                                  : No
Forced                                   : No

Text #1
ID                                       : 3
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 52 min 31 s
Bit rate                                 : 79 b/s
Frame rate                               : 0.311 FPS
Count of elements                        : 980
Stream size                              : 30.6 KiB (0%)
Language                                 : English (US)
Default                                  : No
Forced                                   : No

Text #2
ID                                       : 4
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 52 min 40 s
Bit rate                                 : 84 b/s
Frame rate                               : 0.329 FPS
Count of elements                        : 1041
Stream size                              : 32.7 KiB (0%)
Title                                    : SDH
Language                                 : English (US)
Default                                  : No
Forced                                   : No


cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp> mediainfo 8_movie.mkv
General
Unique ID                                : 
269958523703604309758759108744667515916 (0xCB181ED61862744842BB25DEAD04CC0C)
Complete name                            : 8_movie.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 201 MiB
Duration                                 : 10 min 0 s
Overall bit rate                         : 2 804 kb/s
Frame rate                               : 130.170 FPS
Writing application                      : Lavf58.76.100
Writing library                          : Lavf58.76.100
ErrorDetectionType                       : Per level 1

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4
Format settings                          : 4 Ref Frames
Format settings, CABAC                   : No
Format settings, Reference frames        : 4 frames
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 10 min 0 s
Bit rate                                 : 3 966 kb/s
Width                                    : 1 920 pixels
Height                                   : 802 pixels
Display aspect ratio                     : 2.39:1
Frame rate mode                          : Variable
Frame rate                               : 130.170 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.020
Stream size                              : 1.50 GiB
Writing library                          : x264 core 164
Encoding settings                        : cabac=0 / ref=2 / deblock=0:0:0 / 
analyse=0x1:0x111 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / 
me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / 
fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / 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=0 / open_gop=0 / weightp=0 / keyint=250 / keyint_min=23 / scenecut=40 
/ intra_refresh=0 / rc_lookahead=30 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 
/ qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 2
Format                                   : E-AC-3
Format/Info                              : Enhanced AC-3
Commercial name                          : Dolby Digital Plus
Codec ID                                 : A_EAC3
Duration                                 : 10 min 0 s
Bit rate mode                            : Constant
Bit rate                                 : 640 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C LFE Ls Rs
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Bit depth                                : 32 bits
Compression mode                         : Lossy
Stream size                              : 249 MiB
Language                                 : English
Service kind                             : Complete Main
Default                                  : Yes
Forced                                   : No

Text
ID                                       : 3
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 9 min 59 s
Bit rate                                 : 79 b/s
Frame rate                               : 1.634 FPS
Count of elements                        : 980
Stream size                              : 30.6 KiB (0%)
Language                                 : English
Default                                  : Yes
Forced                                   : No


cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp>


Trying to convert the audio.


cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp> ffmpeg -t 10:0 -i movie.mkv -vf 
"scale=-1:802,format=yuv420p" -map 0 -c:v libx264 -preset fast -crf 22 -tune 
fastdecode -profile:v main -c:a aac -b:a 192k -c:s copy -disposition:a:0 default 8c_movie.mkv
ffmpeg version 8.0 Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 7 (SUSE Linux)
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 
--incdir=/usr/include/ffmpeg --extra-cflags='-fmessage-length=0 
-grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong 
-funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' 
--optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall 
-D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables 
-fasynchronous-unwind-tables -fstack-clash-protection -g' --disable-htmlpages 
--enable-pic --disable-stripping --enable-shared --disable-static --enable-gpl 
--enable-version3 --enable-libsmbclient --disable-openssl --enable-gnutls 
--enable-ladspa --enable-libaom --enable-libass --enable-libbluray 
--enable-libbs2b --enable-libcdio --enable-libdav1d --enable-libdc1394 
--enable-libdrm --enable-libfontconfig --enable-libfreetype --enable-libfribidi 
--enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmp3lame 
--enable-libopenjpeg --enable-libopenmpt --enable-libopenh264 --enable-libopus 
--enable-libpulse --enable-librav1e --enable-libsvtav1 --enable-libsoxr 
--enable-libspeex --enable-libssh --enable-libsrt --enable-libtheora 
--enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvorbis 
--enable-libvpx --enable-libwebp --enable-libxml2 --enable-libzimg 
--enable-libzmq --enable-libzvbi --enable-lv2 --enable-libvpl --enable-vaapi 
--enable-vdpau --enable-version3 --enable-libfdk-aac-dlopen --enable-nonfree 
--enable-libvo-amrwbenc --enable-libx264 --enable-libx265 --enable-libxvid
  libavutil      60.  8.100 / 60.  8.100
  libavcodec     62. 11.100 / 62. 11.100
  libavformat    62.  3.100 / 62.  3.100
  libavdevice    62.  1.100 / 62.  1.100
  libavfilter    11.  4.100 / 11.  4.100
  libswscale      9.  1.100 /  9.  1.100
  libswresample   6.  1.100 /  6.  1.100
Input #0, matroska,webm, from 'movie.mkv':
  Metadata:
    encoder         : libebml v1.4.2 + libmatroska v1.6.4
    creation_time   : 2022-05-15T21:04:13.000000Z
  Duration: 00:54:17.60, start: 0.000000, bitrate: 4608 kb/s
  Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv, bt709), 3840x1604, SAR 
1:1 DAR 960:401, 23.98 fps, 23.98 tbr, 1k tbn (default)
    Metadata:
      BPS             : 3966208
      DURATION        : 00:54:17.588000000
      NUMBER_OF_FRAMES: 78104
      NUMBER_OF_BYTES : 1615034142
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:1(eng): Audio: eac3, 48000 Hz, 5.1(side), fltp, 640 kb/s
    Metadata:
      BPS             : 640000
      DURATION        : 00:54:17.600000000
      NUMBER_OF_FRAMES: 101800
      NUMBER_OF_BYTES : 260608000
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:2(eng): Subtitle: subrip (srt)
    Metadata:
      BPS             : 79
      DURATION        : 00:52:31.318000000
      NUMBER_OF_FRAMES: 980
      NUMBER_OF_BYTES : 31376
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:3(eng): Subtitle: subrip (srt) (hearing impaired)
    Metadata:
      title           : SDH
      BPS             : 84
      DURATION        : 00:52:40.980000000
      NUMBER_OF_FRAMES: 1041
      NUMBER_OF_BYTES : 33504
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (eac3 (native) -> aac (native))
  Stream #0:2 -> #0:2 (copy)
  Stream #0:3 -> #0:3 (copy)
Press [q] to stop, [?] for help
[aac @ 0x557b2dd67d80] Using a PCE to encode channel layout "5.1(side)"
[libx264 @ 0x557b2d2970c0] using SAR=1/1
[libx264 @ 0x557b2d2970c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 
AVX FMA3 BMI2 AVX2
[libx264 @ 0x557b2d2970c0] profile Main, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x557b2d2970c0] 264 - core 164 - H.264/MPEG-4 AVC codec - Copyleft 
2003-2023 - http://www.videolan.org/x264.html - options: cabac=0 ref=2 
deblock=0:0:0 analyse=0x1:0x111 me=hex subme=6 psy=1 psy_rd=1.00:0.00 
mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 
fast_pskip=1 chroma_qp_offset=-2 threads=18 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=0 
open_gop=0 weightp=0 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 
rc_lookahead=30 rc=crf mbtree=1 crf=22.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 
ip_ratio=1.40 aq=1:1.00
Output #0, matroska, to '8c_movie.mkv':
  Metadata:
    encoder         : Lavf62.3.100
  Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p(tv, bt709, 
progressive), 1920x802 [SAR 1:1 DAR 960:401], q=2-31, 23.98 fps, 1k tbn 
(default)
    Metadata:
      encoder         : Lavc62.11.100 libx264
      BPS             : 3966208
      DURATION        : 00:54:17.588000000
      NUMBER_OF_FRAMES: 78104
      NUMBER_OF_BYTES : 1615034142
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(eng): Audio: aac (LC) ([255][0][0][0] / 0x00FF), 48000 Hz, 
5.1(side), fltp, 192 kb/s (default)
    Metadata:
      encoder         : Lavc62.11.100 aac
      BPS             : 640000
      DURATION        : 00:54:17.600000000
      NUMBER_OF_FRAMES: 101800
      NUMBER_OF_BYTES : 260608000
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:2(eng): Subtitle: subrip
    Metadata:
      BPS             : 79
      DURATION        : 00:52:31.318000000
      NUMBER_OF_FRAMES: 980
      NUMBER_OF_BYTES : 31376
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:3(eng): Subtitle: subrip (hearing impaired)
    Metadata:
      title           : SDH
      BPS             : 84
      DURATION        : 00:52:40.980000000
      NUMBER_OF_FRAMES: 1041
      NUMBER_OF_BYTES : 33504
      _STATISTICS_WRITING_APP: mkvmerge v67.0.0 ('Under Stars') 64-bit
      _STATISTICS_WRITING_DATE_UTC: 2022-05-15 21:04:13
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
[out#0/matroska @ 0x557b2d2c47c0] video:158239KiB audio:14030KiB subtitle:10KiB 
other streams:0KiB global headers:0KiB muxing overhead: 0.181263%
frame=14386 fps= 92 q=-1.0 Lsize=  172590KiB time=00:09:59.77 
bitrate=2357.3kbits/s speed=3.83x elapsed=0:02:36.43
[libx264 @ 0x557b2d2970c0] frame I:175   Avg QP:16.17  size: 73474
[libx264 @ 0x557b2d2970c0] frame P:4190  Avg QP:19.45  size: 20328
[libx264 @ 0x557b2d2970c0] frame B:10021 Avg QP:21.28  size:  6387
[libx264 @ 0x557b2d2970c0] consecutive B-frames:  5.7%  3.1%  3.6% 87.6%
[libx264 @ 0x557b2d2970c0] mb I  I16..4: 54.4%  0.0% 45.6%
[libx264 @ 0x557b2d2970c0] mb P  I16..4: 12.2%  0.0%  3.9%  P16..4: 36.1%  8.9% 
 3.8%  0.0%  0.0%    skip:35.1%
[libx264 @ 0x557b2d2970c0] mb B  I16..4:  4.1%  0.0%  0.4%  B16..8: 18.0%  3.1% 
 0.1%  direct:10.7%  skip:63.5%  L0:43.0% L1:49.6% BI: 7.5%
[libx264 @ 0x557b2d2970c0] coded y,uvDC,uvAC intra: 19.1% 56.1% 10.4% inter: 
3.8% 17.8% 0.4%
[libx264 @ 0x557b2d2970c0] i16 v,h,dc,p: 41% 24% 13% 22%
[libx264 @ 0x557b2d2970c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 19% 21%  6%  7%  
6%  6%  5%  4%
[libx264 @ 0x557b2d2970c0] i8c dc,h,v,p: 62% 17% 16%  5%
[libx264 @ 0x557b2d2970c0] ref P L0: 66.6% 33.4%
[libx264 @ 0x557b2d2970c0] ref B L0: 82.6% 17.4%
[libx264 @ 0x557b2d2970c0] ref B L1: 95.3%  4.7%
[libx264 @ 0x557b2d2970c0] kb/s:2160.42
[aac @ 0x557b2dd67d80] Qavg: 889.920
cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp> vlc 8c_movie.mkv
VLC media player 3.0.21 Vetinari (revision 3.0.21-0-gdd8bfdbabe8)
[000055a312def9a0] main libvlc: Running vlc with the default interface. Use 
'cvlc' to use vlc without interface.
[00007f0014f467d0] main decoder error: Codec `mp4a' (MPEG AAC Audio) is not 
supported.              <============
[00007f0014c18630] gstdecode decoder: got new caps video/x-raw, 
format=(string)NV12, width=(int)1920, height=(int)802, 
framerate=(fraction)250000/10427, interlace-mode=(string)progressive, 
pixel-aspect-ratio=(fraction)1/1, multiview-mode=(string)mono, 
multiview-flags=(GstVideoMultiviewFlagsSet)0:ffffffff:/right-view-first/left-flipped/left-flopped/right-flipped/right-flopped/half-aspect/mixed-mono,
 views=(int)2, chroma-site=(string)mpeg2, colorimetry=(string)bt709
[00007f008c0094c0] gl gl: Initialized libplacebo v5.264.1 (API v264)
[00007f008c8da1d0] deinterlace filter error: unknown or incompatible deinterlace mode 
"x" for packed format
cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp>


cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp> mediainfo 8c_movie.mkv
General
Unique ID                                : 
221292233342500440357460353674679332567 (0xA67B557835050C94491939C217C2AED7)
Complete name                            : 8c_movie.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 169 MiB
Duration                                 : 10 min 0 s
Overall bit rate                         : 2 356 kb/s
Frame rate                               : 130.170 FPS
Writing application                      : Lavf62.3.100
Writing library                          : Lavf62.3.100
ErrorDetectionType                       : Per level 1

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4
Format settings                          : 4 Ref Frames
Format settings, CABAC                   : No
Format settings, Reference frames        : 4 frames
Codec ID                                 : V_MPEG4/ISO/AVC
Duration                                 : 10 min 0 s
Bit rate                                 : 3 966 kb/s
Width                                    : 1 920 pixels
Height                                   : 802 pixels
Display aspect ratio                     : 2.39:1
Frame rate mode                          : Variable
Frame rate                               : 130.170 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.020
Stream size                              : 1.50 GiB
Writing library                          : x264 core 164
Encoding settings                        : cabac=0 / ref=2 / deblock=0:0:0 / 
analyse=0x1:0x111 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / 
me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / 
fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / 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=0 / open_gop=0 / weightp=0 / keyint=250 / keyint_min=23 / scenecut=40 
/ intra_refresh=0 / rc_lookahead=30 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 
/ qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : A_AAC-2
Duration                                 : 10 min 0 s
Bit rate                                 : 640 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C Cb Lb Rb
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 249 MiB
Writing library                          : Lavc62.11.100 aac
Language                                 : English
Default                                  : Yes
Forced                                   : No

Text #1
ID                                       : 3
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 9 min 59 s
Bit rate                                 : 79 b/s
Frame rate                               : 1.634 FPS
Count of elements                        : 980
Stream size                              : 30.6 KiB (0%)
Language                                 : English
Default                                  : No
Forced                                   : No

Text #2
ID                                       : 4
Format                                   : UTF-8
Codec ID                                 : S_TEXT/UTF8
Codec ID/Info                            : UTF-8 Plain Text
Duration                                 : 9 min 59 s
Bit rate                                 : 84 b/s
Frame rate                               : 1.736 FPS
Count of elements                        : 1041
Stream size                              : 32.7 KiB (0%)
Title                                    : SDH
Language                                 : English
Default                                  : No
Forced                                   : No


cer@Telcontar:/mnt/nfs/Isengard/xfsRaid/Videos/tmp>


--
Cheers / Saludos,

                Carlos E. R.
                (from 15.6 x86_64 at Telcontar)

Attachment: OpenPGP_signature.asc
Description: OpenPGP digital signature

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