may i ask help to understand why the png logo appears only on the first video of the concat result?
Thanks!
ffmpeg -f concat -safe 0 -y -i list.txt -i ../logo/logo.png -c:a copy -c:v libx264 -x264opts keyint=$50:min-keyint=$50:no-scenecut -bf 0 -r $25 -b:v 4800k -maxrate 9600k -bufsize 19200k -profile:v main -crf 22 -filter_complex "[0:v][1:v]overlay=main_w-overlay_w-10:10,scale=1920:1080,setsar=1" -t 370 1080set.mp4
I suspect the 2nd and possibly further inputs have video streams with differing properties, so the filtergraph gets reinitialized, and at that point, since you haven't looped the image, there's no image frame left to overlay.
So, loop the image,
ffmpeg -f concat -safe 0 -y -i list.txt -loop 1 -i ../logo/logo.png -c:a copy -c:v libx264 -x264opts keyint=$50:min-keyint=$50:no-scenecut -bf 0 -r $25 -b:v 4800k -maxrate 9600k -bufsize 19200k -profile:v main -crf 22 -filter_complex "[0:v][1:v]overlay=main_w-overlay_w-10:10,scale=1920:1080,setsar=1" -t 370 1080set.mp4
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isomavc1
creation_time : 2007-05-09T07:55:25.000000Z
Duration: 00:01:29.22, start: 0.000000, bitrate: 7490 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1920x816, 7403 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
creation_time : 2007-05-09T07:55:25.000000Z
handler_name : GPAC ISO Video Handler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 94 kb/s (default)
Metadata:
creation_time : 2007-05-09T07:55:29.000000Z
handler_name : GPAC ISO Audio Handler
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isomavc1
creation_time : 2007-07-17T09:18:37.000000Z
genre : Trailer
artist : Fox
title : The Simpsons Movie
date : 2007
Duration: 00:02:17.25, start: 0.000000, bitrate: 8591 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x800, 8486 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
creation_time : 2007-07-17T09:18:37.000000Z
handler_name : GPAC ISO Video Handler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, 5.1, fltp, 107 kb/s (default)
Metadata:
creation_time : 2007-07-17T09:18:45.000000Z
handler_name : GPAC ISO Audio Handler
Stream #0:2: Video: mjpeg (Progressive), yuvj420p(pc, bt470bg/unknown/unknown), 101x150 [SAR 72:72 DAR 101:150], 90k tbr, 90k tbn, 90k tbc (attached pic)
Related
I'm trying to create a oneline for ffmpeg where I have:
original a/v recording in h264/mkv from which I need part of recording
png image as title card
I want to create a 5 second silent title before a part of video starts, possible in one ffmpeg line and codec-copy for the video.
Things I tried so far:
generate an mp4 from png with silence as audio track (needed by concating later):
ffmpeg -f lavfi \
-i anullsrc=channel_layout=stereo:sample_rate=44100 \
-loop 1 \
-i TITLE1080.png \
-s hd1080 \
-vf "fps=25,format=yuv420p" \
-c:a aac \
-t 5 \
TITLE1080.mp4
Cutting out a relevant portion from the video in mkv container (copy video in h264) and reenconcoding audio to aac:
ffmpeg -i VIDEO.mkv \
-ss 01:12:21 \
-to 02:12:40 \
-c:v copy \
-b:a 320k \
-avoid_negative_ts 1 \
OUTPUT.mp4
Concatenating the two h264/mp4 files via filelist1.txt file:
file '/path/to/TITLE1080.mp4'
file '/path/to/OUTPUT.mp4'
and then:
ffmpeg -f concat \
-safe 0 \
-segment_time_metadata 1 \
-i filelist1.txt \
-c copy \
-r 30 \
FINAL.mp4
The result has audio that seemingly drifts out of sync like it runs slightly faster so it finishes before and that after an hour there's silence for cca 5 minutes while the video still runs.
Re-encoding fixes all those problems but I would like to work with -c copy but rebuild the timestamps and ensure av sync.
How to make av sync correct and is it possible to have a one-liner ffmpeg command in bash/shell on linux?
here's ffprobe for both video files:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'TITLE1080.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.29.100
Duration: 00:00:05.02, start: 0.000000, bitrate: 79 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 67 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'OUTPUT.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.29.100
Duration: 00:42:56.67, start: 0.000000, bitrate: 5334 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 5002 kb/s, 30 fps, 30 tbr, 16k tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 322 kb/s (default)
Metadata:
handler_name : SoundHandler
I have a problem and I need help.
I have read each post on the subject, but I have no solution, it turns out that when trying to add chapters to a video they are written, but they erase or overwrite the subtitles, is there a way to add the chapters without overwriting and keeping the information?
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.76.100
Duration: 03:01:21.92, start: 0.000000, bitrate: 937 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 801 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : ISO Media file.
vendor_id : [0][0][0][0]
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
Metadata:
handler_name : ISO Media file.
vendor_id : [0][0][0][0]
Stream #0:2: Subtitle: mov_text (tx3g / 0x67337874), 0 kb/s (default)
Metadata:
handler_name : SubtitleHandler
Please help.
Here is the basic command:ffmpeg -i INPUT -f ffmetadata -i input.chap -map 0:v -map 0:a -map 0:s -map_metadata 1 -map_chapters 1 -c copy OUTPUT
-map 0:v, -map 0:a and -map 0:s to keep the video+audio+subtitles streams of the INPUT file
-map_metadata 1 to include the metadata of the input.chap file to output
-map_chapters 1 to include the chapters of the input.chap file to output
-c copy for stream copy all streams
I'm trying to encode an m2ts (MPEG-2 Transport Stream) file to mp4 (H.264) and get the ssim value.
I did get some SSIM values, but the results were contrary to my expectations.
Are there wrong command options for ffmpeg?
Encoding and SSIM calculation commands
# encode
$ ffmpeg -hide_banner -fflags +discardcorrupt -i input.m2ts \
-c:v libx264 -crf <CRF> -preset:v medium \
-c:a copy -bsf:a aac_adtstoasc \
output_ff_crf-<CRF>.mp4
# calculate ssim
$ ffmpeg -hide_banner -i <A> -i <B> \
-lavfi "[0:v]settb=AVTB,setpts=PTS-STARTPTS[main];[1:v]settb=AVTB,setpts=PTS-STARTPTS[ref];[main][ref]ssim" \
-f null -
The results of the SSIM
(a) A=input.m2ts, B=input.m2ts, ssim=0.973266
(b) A=input.m2ts, B=output_ff_crf-0.mp4, ssim=0.813347
(c) A=input.m2ts, B=output_ff_crf-30.mp4, ssim=0.819897
(d) A=output_ff_crf-0.mp4, B=output_ff_crf-0.mp4, ssim=1.000000
(e) A=output_ff_crf-0.mp4, B=output_ff_crf-30.mp4, ssim=0.972911
(d)(e): These are what I expected.
(a): The files are the same, but ssim≠1.
(b)(c): SSIMs with CRF=0 and CRF=30 have almost the same value, although the image quality is different.
In the case of HandBrakeCLI
To determine if there was a problem with input.m2ts, I ran HandBrakeCLI with almost the same parameters as ffmpeg.
# encode
HandBrakeCLI --verbose --format av_mp4 --encoder x264 --quality <CRF> --x264-preset medium \
--aencoder copy \
--input input.m2ts --output output_hb_crf-<CRF>.mp4
# calculate ssim (same as ffmpeg)
$ ffmpeg -hide_banner -i <A> -i <B> \
-lavfi "[0:v]settb=AVTB,setpts=PTS-STARTPTS[main];[1:v]settb=AVTB,setpts=PTS-STARTPTS[ref];[main][ref]ssim" \
-f null -
(b') A=input.m2ts, B=output_hb_crf-0.mp4, ssim=0.999999
(c') A=input.m2ts, B=output_hb_crf-30.mp4, ssim=0.972886
(d') A=output_hb_crf-0.mp4, B=output_hb_crf-0.mp4, ssim=1.000000
(e') A=output_hb_crf-0.mp4, B=output_hb_crf-30.mp4, ssim=0.972886
It's all as I expected. (although A is not ssim=1.0)
Therefore, I don't see a problem with input.m2ts.
Informations about video files and tools
Results of the ffprobe
input.m2ts
[mpeg2video # 0x5655577c1680] Invalid frame dimensions 0x0.
Last message repeated 1 times
[mpegts # 0x5655577bd080] start time for stream 2 is not set in estimate_timings_from_pts
[mpegts # 0x5655577bd080] PES packet size mismatch
Input #0, mpegts, from 'input.m2ts':
Duration: 00:30:02.68, start: 39593.392600, bitrate: 19019 kb/s
Program 211
Stream #0:0[0x140]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
Stream #0:1[0x141]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 255 kb/s
Stream #0:2[0x138]: Data: bin_data ([6][0][0][0] / 0x0006)
Unsupported codec with id 100359 for input stream 2
output_ff_crf-0.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output_ff_crf-0.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.83.100
Duration: 00:30:02.67, start: 0.000000, bitrate: 109301 kb/s
Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 109040 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 252 kb/s (default)
Metadata:
handler_name : SoundHandler
output_hb_crf-0.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output_hb_crf-0.mp4':
Metadata:
major_brand : mp42
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 2020-05-17T06:22:06.000000Z
encoder : HandBrake 1.1.0 2018042400
Duration: 00:30:02.22, start: 0.000000, bitrate: 109661 kb/s
Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 109405 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc (default)
Metadata:
creation_time : 2020-05-17T06:22:06.000000Z
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 252 kb/s (default)
Metadata:
creation_time : 2020-05-17T06:22:06.000000Z
handler_name : Stereo
Tools
version
ffmpeg: 3.4.6-0ubuntu0.18.04.1
HandBrakeCLI: 1.1.0
ldd
$ ldd /usr/bin/ffmpeg
...
libx264.so.152 => /usr/lib/x86_64-linux-gnu/libx264.so.152 (0x00007efbf1f33000)
...
$ ldd /usr/bin/HandBrakeCLI
...
libx264.so.152 => /usr/lib/x86_64-linux-gnu/libx264.so.152 (0x00007efbfb38f000)
...
ffmpeg and HandBrakeCLI are using the same libx264.
I have a script that automates encode and concat a series of input video files.
I'm trying to get encode and concat in a single command.
At the moment it does not work causing immense empty pauses in the final video output.
I would like to get the result with concat demux instead of concat protocol because it is much harder to automate in a script
Do you know if it is possible to archive this result with concat demux?
Thanks a lot!
Massimo
ENCODE / CONCAT 1080p
for f in ./*.mp4; do echo "file '$f'" >> list.txt; done
ffmpeg -f concat -safe 0 -y -i list.txt -i ../logo/logo.png -c:a aac -b:a 384k -ar 48000 -ac 2 -af aresample=async=1000 -c:v libx264 -x264opts keyint=50:min-keyint=50:no-scenecut -bf 0 -r 25 -b:v 4800k -maxrate 4800k -bufsize 3000k -profile:v main -crf 22 -filter_complex "[0:v][1:v]overlay=main_w-overlay_w-10:10,scale=1920:1080,setsar=1" ../buffer/1080set.mp4
It seems to add long pause at low frame-rate:
[mov,mp4,m4a,3gp,3g2,mj2 # 0x7fb03f05e600] Auto-inserting h264_mp4toannexb bitstream filter
frame= 9745 fps= 13 q=27.0 size= 186368kB time=00:18:52.56 bitrate=1348.0kbits
frame= 9745 fps= 13 q=27.0 size= 186368kB time=00:18:56.57 bitrate=1343.3kbits/
frame= 9745 fps= 13 q=27.0 size= 186368kB time=00:19:00.65 bitrate=1338.5kbits/
frame= 9745 fps= 13 q=27.0 size= 186368kB time=00:19:02.29 bitrate=1336.5kbits/
More than 1000 frames duplicated
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
Metadata:
major_brand : mp42
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 2016-02-27T22:25:49.000000Z
encoder : HandBrake 0.10.5 2016021100
Duration: 00:06:29.87, start: 0.000000, bitrate: 3447 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 768x432, 3282 kb/s, 25 fps, 25 tbr, 90k tbn, 180k tbc (default)
Metadata:
creation_time : 2016-02-27T22:25:49.000000Z
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 159 kb/s (default)
Metadata:
creation_time : 2016-02-27T22:25:49.000000Z
handler_name : Stereo
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '2.mp4':
Metadata:
major_brand : M4V
minor_version : 1
compatible_brands: M4V mp42isom
creation_time : 2016-02-27T18:52:37.000000Z
Duration: 00:07:16.93, start: 0.000000, bitrate: 1184 kb/s
Stream #1:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 768x432, 991 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc (default)
Metadata:
creation_time : 2016-02-27T18:52:37.000000Z
handler_name : Mainconcept MP4 Video Media Handler
encoder : AVC Coding
Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
Metadata:
creation_time : 2016-02-27T18:52:37.000000Z
handler_name : Mainconcept MP4 Sound Media Handler
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '3.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
creation_time : 2017-06-27T17:58:17.000000Z
Duration: 00:05:05.05, start: 0.000000, bitrate: 2622 kb/s
Stream #2:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 768x432, 2301 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc (default)
Metadata:
creation_time : 2017-06-27T17:58:17.000000Z
handler_name : Alias Data Handler
encoder : AVC Coding
Stream #2:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
Metadata:
creation_time : 2017-06-27T17:58:17.000000Z
handler_name : Alias Data Handler
Input #3, mov,mp4,m4a,3gp,3g2,mj2, from '4.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
creation_time : 2017-06-27T17:53:32.000000Z
Duration: 00:06:47.36, start: 0.000000, bitrate: 3144 kb/s
Stream #3:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 768x432, 2819 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc (default)
Metadata:
creation_time : 2017-06-27T17:53:32.000000Z
handler_name : Alias Data Handler
encoder : AVC Coding
Stream #3:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
Metadata:
creation_time : 2017-06-27T17:53:32.000000Z
handler_name : Alias Data Handler
concat demxuer
The concat demuxer needs all inputs to have the same formats, number of streams, type of streams, order of streams (or use exact_stream_id), timebase, frame rate, audio sample rate, audio channel layout, and it is also recommended to have the same width and height.
In your case the timebase (tbn) of the first input is different than the rest. You can pre-process this input to conform it to the others:
ffmpeg -i 1.mp4 -c copy -video_track_timescale 25k 1_reset.mp4
Then run your command using the concat demuxer.
concat filter
Because you're re-encoding anyway it may be easier for you to use the concat filter. This allows you to conform each input using various filters then concate all in one command. There are several examples of such use on this site.
I have recently converted many videos for web playback, but all videos from one "series" all show up in firefox as "Video can't be played because the file is corrupt." (They work for google chrome and VLC. Not for firefox or edge.) All files have been converted with this command:
ffmpeg -i "file.mkv" -vcodec h264 -movflags +faststart -map 0 -vf subtitles="file.mkv" "file.mp4"
ffmpeg output from one of the non-working files:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Episode_7.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.3.100
Duration: 00:23:53.52, start: -0.001333, bitrate: 1900 kb/s
Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 1920x1080 [SAR 1:1 DAR 16:9], 1763 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s (default)
Metadata:
handler_name : SoundHandler
ffmpeg output from a working file:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Episode_7.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.3.100
Duration: 00:23:40.06, start: 0.000000, bitrate: 1848 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1710 kb/s, 23.81 fps, 23.81 tbr, 16k tbn, 47.62 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(jpn): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 131 kb/s (default)
Metadata:
handler_name : SoundHandler
Of a collection of over 100 files, only 12 episodes of a single series show up as corrupted in firefox. I see some differences in the information about the two files, but I don't know why one file works and the other does not. What do I need to tell ffmpeg to make the videos playable in firefox?
It's the 4:4:4 chroma sampling. Add -pix_fmt yuv420p to the output file.