Re: [FFmpeg-user] Why are these different?
On 07/02/2024 16.53, Paul B Mahol wrote: On Wed, Feb 7, 2024 at 10:28 PM Mark Filipak wrote: Hi Carl, On 07/02/2024 13.56, Carl Zwanzig wrote: On 2/7/2024 10:34 AM, Mark Filipak wrote: Okay. Why are they different? Because the containers are different? An mp4 container is not the same as an mkv (or avi or mpeg), they must have different demuxers. They are the same source, same container. The only difference is command. ffmpeg -ss 20.061708333 -copyts -i %SOURCE% -map 0 -c copy -sn -dn -muxdelay 0 %TARGET% ffmpeg -copyts -i %SOURCE% -map 0 -ss 20.061708333 -c copy -sn -dn -muxdelay 0 %TARGET% Why do the results differ? They're not a little different. They're very different. The DTSs differ. The PTSs differ. The cutting points differ by a couple hundred frames. Even some of the packet lengths differ! This is serious. I can't tell if the GOPs differ -- DTS-sorted v PTS-sorted -- because it's impossible to correlate 'framecrc' results and 'showinfo' results. use -v debug Here ya go, Paul. Logs are attached. ffmpeg started on 2024-02-07 at 19:09:53 Report written to "ffmpeg-20240207-190953.log" Log level: 48 Command line: "C:\\CMD & tiny apps\\ffmpeg\\ffmpeg.exe" -report -v debug -copyts -i "h:\\BDMV\\STREAM\\00305.m2ts" -map 0 -ss 20.061708333 -to 35 -c copy -sn -dn -muxdelay 0 "c:\\FANNY AND ALEXANDER, '-i -ss -to'.m2ts" ffmpeg version 2023-11-09-git-acf63d5350-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers built with gcc 12.2.0 (Rev10, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --pkg-config=pkgconf --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable libavutil 58. 32.100 / 58. 32.100 libavcodec 60. 33.100 / 60. 33.100 libavformat60. 17.100 / 60. 17.100 libavdevice60. 4.100 / 60. 4.100 libavfilter 9. 13.100 / 9. 13.100 libswscale 7. 6.100 / 7. 6.100 libswresample 4. 13.100 / 4. 13.100 libpostproc57. 4.100 / 57. 4.100 Splitting the commandline. Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'. Reading option '-v' ... matched as option 'v' (set logging level) with argument 'debug'. Reading option '-copyts' ... matched as option 'copyts' (copy timestamps) with argument '1'. Reading option '-i' ... matched as output url with argument 'h:\BDMV\STREAM\00305.m2ts'. Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '0'. Reading option '-ss' ... matched as option 'ss' (set the start time offset) with argument '20.061708333'. Reading option '-to' ... matched as option 'to' (record or transcode stop time) with argument '35'. Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'. Reading option '-sn' ... matched as option 'sn' (disable subtitle) with argument '1'. Reading option '-dn' ... matched as option 'dn' (disable data) with argument '1'. Reading option '-muxdelay' ... matched as option 'muxdelay' (set the maximum demux-decode delay) with argument '0'. Reading option 'c:\FANNY AND ALEXANDER, '-i -ss -to'.m2ts' ... matched as output url. Finished splitting the commandline. Parsing a group of options: global . Applying option report (generate a report) with argument 1. Applying option v (set logging level) with argument debug. Applying option copyts (copy timestamps) with argument 1. Successfully parsed a group of options. Parsing a group of options: input url h:\BDMV\STREAM\00305.m2ts. Successfully parsed a group of options. Opening an input file: h:\BDMV\STREAM\00305.m2ts. [AVFormatContext @ 005a31c0] Opening 'h:\BDMV\STREAM\00305.m2ts' for reading [file @ 005bb740] Setting default whitelist 'file,crypto,data' [mpegts @ 005a31c0] Format mpegts probed with size=2048 and score=50 [mpegts @ 005a31c0] stream=0 stream_type=1b pid=1011 prog_reg_desc=HDMV [mpegts @ 005a31c0] stream=1 stream_type=86 pid=1100 prog_reg_desc=HDMV [mpegts @ 005a31c0] stream=2 stream_type=90 pid=1200 prog_reg_
Re: [FFmpeg-user] Why are these different?
On 07/02/2024 16.53, Paul B Mahol wrote: On Wed, Feb 7, 2024 at 10:28 PM Mark Filipak wrote: Hi Carl, On 07/02/2024 13.56, Carl Zwanzig wrote: On 2/7/2024 10:34 AM, Mark Filipak wrote: Okay. Why are they different? Because the containers are different? An mp4 container is not the same as an mkv (or avi or mpeg), they must have different demuxers. They are the same source, same container. The only difference is command. ffmpeg -ss 20.061708333 -copyts -i %SOURCE% -map 0 -c copy -sn -dn -muxdelay 0 %TARGET% ffmpeg -copyts -i %SOURCE% -map 0 -ss 20.061708333 -c copy -sn -dn -muxdelay 0 %TARGET% Why do the results differ? They're not a little different. They're very different. The DTSs differ. The PTSs differ. The cutting points differ by a couple hundred frames. Even some of the packet lengths differ! This is serious. I can't tell if the GOPs differ -- DTS-sorted v PTS-sorted -- because it's impossible to correlate 'framecrc' results and 'showinfo' results. use -v debug One of them IIRC uses trim filters for seeking I will try. Thank you. They are both trimming, just at differing points. They are both cutting off hundreds of leading audio packets but they are both leaving leading audio packets, 52 for one and 54 for the other, that should be cut off. In the first, the cut-point I-frame immediately follows the not-cut-off audio packets, but in the other, the correct cut-point I-frame is hundreds of video frames later. They both are leaving other audio packets that come after the cut point but have lower PTSs. They both leave the 'next' B-frame (which should be cut off) as though they're working on DTS-order instead of PTS-order. I think there are bugs in the frame reordering _and_ in video v audio packet handling when cutting _and_ in the '-ss' handling. I moved the location of '-ss' on a lark just to see if putting it after '-i' would produce better results; the results were worse. ___ 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] Why are these different?
On Wed, Feb 7, 2024 at 10:28 PM Mark Filipak wrote: > Hi Carl, > > On 07/02/2024 13.56, Carl Zwanzig wrote: > > On 2/7/2024 10:34 AM, Mark Filipak wrote: > >> Okay. Why are they different? > > > > Because the containers are different? An mp4 container is not the same > as an mkv (or avi or mpeg), > > they must have different demuxers. > > They are the same source, same container. The only difference is command. > > ffmpeg -ss 20.061708333 -copyts -i %SOURCE% -map 0 -c copy -sn -dn > -muxdelay 0 %TARGET% > ffmpeg -copyts -i %SOURCE% -map 0 -ss 20.061708333 -c copy -sn -dn > -muxdelay 0 %TARGET% > > Why do the results differ? They're not a little different. They're very > different. The DTSs differ. > The PTSs differ. The cutting points differ by a couple hundred frames. > Even some of the packet > lengths differ! This is serious. > > I can't tell if the GOPs differ -- DTS-sorted v PTS-sorted -- because it's > impossible to correlate > 'framecrc' results and 'showinfo' results. > > use -v debug One of them IIRC uses trim filters for seeking --Mark. > > > ___ > 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] Why are these different?
Hi Carl, On 07/02/2024 13.56, Carl Zwanzig wrote: On 2/7/2024 10:34 AM, Mark Filipak wrote: Okay. Why are they different? Because the containers are different? An mp4 container is not the same as an mkv (or avi or mpeg), they must have different demuxers. They are the same source, same container. The only difference is command. ffmpeg -ss 20.061708333 -copyts -i %SOURCE% -map 0 -c copy -sn -dn -muxdelay 0 %TARGET% ffmpeg -copyts -i %SOURCE% -map 0 -ss 20.061708333 -c copy -sn -dn -muxdelay 0 %TARGET% Why do the results differ? They're not a little different. They're very different. The DTSs differ. The PTSs differ. The cutting points differ by a couple hundred frames. Even some of the packet lengths differ! This is serious. I can't tell if the GOPs differ -- DTS-sorted v PTS-sorted -- because it's impossible to correlate 'framecrc' results and 'showinfo' results. --Mark. ___ 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] Why are these different?
On 2/7/2024 10:34 AM, Mark Filipak wrote: Okay. Why are they different? Because the containers are different? An mp4 container is not the same as an mkv (or avi or mpeg), they must have different demuxers. 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] Why are these different?
On 07/02/2024 10.06, Paul B Mahol wrote: On Wed, Feb 7, 2024 at 2:43 AM Mark Filipak wrote: Why are these different? This is all about seeking, and that depends 10% on internal demuxer implementation of container. Okay. Why are they different? ___ 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] Why are these different?
On Wed, Feb 7, 2024 at 2:43 AM Mark Filipak wrote: > Why are these different? > > Looking only at the first 5 video frames: > > ffmpeg -ss 20.061708333 -copyts -i %SOURCE% -map 0 -c copy -sn -dn > -muxdelay 0 %TARGET% > produces this: > 0,2846606,2854113, 3753, 640646, 0x3a5a0c45 > 0,2850360,2850360, 3753, 640646, 0xfed1d09a <== error > 0,2854113,2861621, 3753, 640646, 0x02208727 > > 0,2857867,2857867, 3753, 640646, 0x108abb16 > 0,2861621,2869128, 3753, 640646, 0xfd51ca41 > > ffmpeg -copyts -i %SOURCE% -map 0 -ss 20.061708333 -c copy -sn -dn > -muxdelay 0 %TARGET% > produces this: > 0, 50062, 61323, 3753, 640646, 0x12a26bc2 > 0, 53816, 53816, 3753, 415846, 0xb16fcb71 <== error > 0, 57569, 57569, 3753, 123879, 0xf2721eb8 <== error > 0, 61323, 68831, 3753, 126929, 0xe73f80e5 > 0, 65077, 65077, 3753, 124619, 0x20a2a8d5 > > They have the same '-copyts'. They should have the same DTSs & PTSs. They > don't. > They have the same '-muxdelay 0'. They should both have no delay. The 2nd > has delay. > The packet with CRC=0x3a5a0c45 is packet 0 in the first and packet 264 in > the second. > > 'showinfo' shows only frames and uses bogus PTSs. 'framecrc' shows only > packets, not frames. So it > doesn't seem possible to correlate their information. > > This is all about seeking, and that depends 10% on internal demuxer implementation of container. > --Mark. > ___ > 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] h264_mp4toannexb does not store a proper frame-rate.
Hi, I have an mp4 file, that I want to convert to Annex B. The file properties are: Duration: 01:59:59.97, start: 0.00, bitrate: 1221 kb/s Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/bt470bg/smpte170m), 1280x720, 1221 kb/s, 15 fps, 15 tbr, 15360 tbn, 60 tbc (default)I am converting to Annex B this way: ffmpeg -i file.mp4 -vcodec copy -vbsf h264_mp4toannexb -an output_file.264 After running ffprobe on the output_file.264: Duration: N/A, bitrate: N/A Stream #0:0: Video: h264 (Main), yuvj420p(pc, bt470bg/bt470bg/smpte170m, progressive), 1280x720, 30 fps, 30 tbr, 1200k tbn, 60 tbc As you can see, the duration information has been lost and fps is now 30 fps. It it possible to retain the original FPS? Cheers, Bruce ___ 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] Issues regarding Ffmpeg video HLS conversion command
The Ffmpeg command used to convert a video to HLS format can be also executed
via php's exec() function.
We can dump the log in a php variable using following syntax with flag '2>&1'
command:
exec('ffmpeg -y -i "D:/HlsEncryptionProject/encTestVideo.mp4" -preset slow -g
48 -sc_threshold 0 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -s:v:0
1920*1080 -b:v:0 286k -s:v:1 1280*720 -b:v:1 2500k -s:v:2 630*360 -b:v:2 1000k
-c:a copy -var_stream_map "v:0,a:0,name:1080p v:1,a:1,name:720p
v:2,a:2,name:360p" -master_pl_name "MLSFS002.m3u8" -f hls -hls_time 30
-hls_key_info_file "D:/HlsEncryptionProject/content/videos/enc.keyinfo"
-hls_playlist_type vod -hls_list_size 0 -hls_segment_filename
"D:/HlsEncryptionProject/content/videos/vid_%v/MLSFS002%d.ts"
D:/HlsEncryptionProject/content/videos/MLSFS002/vid_%v/MLSFS002.m3u8 2>&1',
$output, $returnCode);
Output:
"ffmpeg version 2023-01-01-git-62da0b4a74-full_build-www.gyan.dev Copyright (c)
2000-2023 the FFmpeg developers",
" built with gcc 12.1.0 (Rev2, 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-bzlib --enable-lzma
--enable-libsnappy --enable-zlib --enable-librist --enable-libsrt
--enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray
--enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libdav1d
--enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e
--enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265
--enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl
--enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass
--enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun
--enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf
--enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
--enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libs
haderc --enable-vulkan --enable-libplacebo --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 57. 43.100 / 57. 43.100",
" libavcodec 59. 55.103 / 59. 55.103",
" libavformat59. 34.102 / 59. 34.102",
" libavdevice59. 8.101 / 59. 8.101",
" libavfilter 8. 53.100 / 8. 53.100",
" libswscale 6. 8.112 / 6. 8.112",
" libswresample 4. 9.100 / 4. 9.100",
" libpostproc56. 7.100 / 56. 7.100",
"Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'D:/HlsEncryptionProject/encTestVideo.mp4':",
" Metadata:",
"major_brand : isom",
"minor_version : 512",
"compatible_brands: isomiso2avc1mp41",
"encoder : Lavf55.33.100",
" Duration: 00:01:00.40, start: 0.00, bitrate: 624 kb/s",
" Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661),
yuv420p(progressive), 630x332, 621 kb/s, 25 fps, 25 tbr, 12800 tbn (default)",
"Metadata:",
" handler_name: VideoHandler",
" vendor_id : [0][0][0][0]",
"Stream map '0:1' matches no streams.",
"To ignore this, add a trailing '?' to the map."
But when we try to generate error output (for example, via inputting a corrupt
video url or by omitting a part of ffmpeg command) via these flags, then Ffmpeg
is generating the same type of error mentioned above.
So the issue is every time when we want to log the error in case the tool fails
to convert the video into HLS format,
Ffmpeg just generates same error. Are there some ways by which we can improve
the logging system of ffmpeg
for error/warning logs? the command above is fixed and we want to find some
verdict like what exactly happened
while executing the same command (w/ different values/dynamic values in command)
Also ffmpeg is not taking a localhost url for a video resource as the input in
the command below when run via
php Apache xampp configuration in php:
'ffmpeg -y -i "http://localhost/HlsEncryptionProject/encTestVideo.mp4; -preset
slow -g 48 -sc_threshold 0 -map 0:0 -map 0:1 -map 0:0 -map 0:1 -map 0:0 -map
0:1 -s:v:0 1920*1080 -b:v:0 286k -s:v:1 1280*720 -b:v:1 2500k -s:v:2 630*360
-b:v:2 1000k -c:a copy -var_stream_map "v:0,a:0,name:1080p v:1,a:1,name:720p
v:2,a:2,name:360p" -master_pl_name "MLSFS002.m3u8" -f hls -hls_time 30
-hls_key_info_file
"D:/HlsEncryptionProject/content/videos/MLSFS002/enc.keyinfo"
-hls_playlist_type vod -hls_list_size 0 -hls_segment_filename
