Text overlay does not work if framenum 1..n and timecode hh:mm:ss:frame attributes are used together, how do overlay both running values?
Does not work, only timecode is incrementing and framenum is a as a text:
ffmpeg.exe -hide_banner -nostats ^
-i "video_25fps.mp4" -threads 4 -preset fast ^
-c:v libx264 -profile:v main -level 4.0 -s:v 640x360 -b:v 512k -pix_fmt yuv420p ^
-refs 3 -bf 3 -g 50 -keyint_min 25 -b_strategy 1 -flags +cgop -sc_threshold 0 ^
-movflags "negative_cts_offsets+faststart" ^
-vf "drawtext=fontfile=/fonts/Roboto-Regular.ttf:fontcolor=White:fontsize=38:box=1:boxcolor=black:x=(w-text_w)/2:y=text_h-line_h+60:text='H264\ 640x360\ 512k\ frame\: %{frame_num}\ ':start_number=1:timecode=00\\:00\\:00\\:00:rate=25" ^
-an -sn -t 30 -y output.mp4
Works if framenum only:
-vf "drawtext=fontfile=/fonts/Roboto-Regular.ttf:fontcolor=White:fontsize=38:box=1:boxcolor=black:x=(w-text_w)/2:y=text_h-line_h+60:text='H264\ 640x360\ 512k\ frame\: %{frame_num}':start_number=1"
Works if timecode only:
-vf "drawtext=fontfile=/fonts/Roboto-Regular.ttf:fontcolor=White:fontsize=38:box=1:boxcolor=black:x=(w-text_w)/2:y=text_h-line_h+60:text='H264\ 640x360\ 512k\ ':timecode='00\:00\:00\:00':rate=25"
You need to double up on the drawtext instruction, separating them with a comma.
i.e.
ffmpeg -i input.mp4 -vf "drawtext=text='Frame\: %{frame_num}': start_number=1: x=(w-tw)/2: y=h-(2*lh):font='Noto mono':fontsize=40:alpha=0.5:box=1:boxborderw=4,drawtext=text='':x=(w-tw)/2:y=(lh):fontsize=40:fontcolor=white:timecode='00\:00\:00\:00':timecode_rate=25" -c:a copy output2.mp4
Related
I have a 2 seconds length 1920x1080 dimensions video and I want to size of the file to be 3Mb
I tried the method below:
const fileSize = 3000; // Kilobytes
const duration = 2; // Second
const videoBitRate = Math.round((fileSize * 8) / duration));
So videoBitRate is 12000 right now
Then I use Two-Pass encoding
ffmpeg -y -i input -c:v libx264 -preset medium -b:v 12000k -pass 1 -c:a aac -b:a 128k -f mp4 /dev/null && \
ffmpeg -i input -c:v libx264 -preset medium -b:v 12000k -pass 2 -c:a aac -b:a 128k output.mp4
Expecting file size: 3Mb
Actual file size: 2.6Mb
If I'd use a 35 seconds video,
videoBitRate = 685k
ffmpeg -y -i input -c:v libx264 -preset medium -b:v 685k -pass 1 -c:a aac -b:a 128k -f mp4 /dev/null && \
ffmpeg -i input -c:v libx264 -preset medium -b:v 685k -pass 2 -c:a aac -b:a 128k output.mp4
Expecting file size: 3Mb
Actual file size: 3.6Mb
What is the point I'm doing wrong?
Isn't there a more accurate way to calculate? Why are the results always different?
I'm trying to convert hls stream from rtmp source and its' working fine but the problem is when rtmp server is down or network issue the ffmpeg hls conversion process gets stuck and never comes to work again even if rtmp server is back online.
I've tried
-reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 5
command - it says option is not recognized options by the way I'm using ffmpeg [v4.2.1].
I'm using following ffmpeg commands
ffmpeg -i rtmp://localhost/living/test ^
-max_muxing_queue_size 9999 ^
-async 1 -vf yadif -g 29.97 -r 23 ^
-b:v:0 3150k -c:v libx264 -filter:v:0 "scale=426:-1" -rc:v vbr_hq -pix_fmt yuv420p -profile:v main -level 4.1 -strict_gop 1 -rc-lookahead 32 -no-scenecut 1 -forced-idr 1 -b:a:0 128k -map 0:v -map 0:a:0 ^
-b:v:1 4200k -c:v libx264 -filter:v:1 "scale=640:-1" -rc:v vbr_hq -pix_fmt yuv420p -profile:v main -level 4.1 -strict_gop 1 -rc-lookahead 32 -no-scenecut 1 -forced-idr 1 -b:a:1 192k -map 0:v -map 0:a:0 ^
-b:v:2 5250k -c:v libx264 -filter:v:2 "scale=1280:-1" -rc:v vbr_hq -pix_fmt yuv420p -profile:v main -level 4.1 -strict_gop 1 -rc-lookahead 32 -no-scenecut 1 -forced-idr 1 -b:a:2 256k -map 0:v -map 0:a:0 ^
-c:a aac -ar 48000 ^
-f hls ^
-var_stream_map "v:0,a:0 v:1,a:1 v:2,a:2" ^
-master_pl_name index.m3u8 ^
-t 30000 -hls_time 10 ^
-hls_init_time 4 -hls_list_size 0 ^
-master_pl_publish_rate 10 ^
-hls_flags delete_segments+discont_start+split_by_time "../live/test/vs%%v/manifest.m3u8"
pause
This is my nightmare :
for %%f in (*.avi) do (
ffmpeg -y ^
-i "%%f" ^
-pix_fmt yuv420p ^
-c:v libx264 ^
-pass 1 ^
-an ^
-preset slow -profile:v high -level 4.0 -tune animation ^
-b:v 10000k -minrate 10000k -maxrate 20000k -bufsize 20000k -g 15 -keyint_min 8 -sc_threshold 0 ^
-r 30 -bf 2 ^
-fast-pskip 1 ^
-threads 4 ^
-f rawvideo NUL && ^
ffmpeg -y ^
-i "%%f" ^
-i "input.png" ^
-i "input.mp4" ^
-pix_fmt yuv420p ^
-c:v libx264 ^
-pass 2 ^
-preset slow -profile:v high -level 4.0 -tune animation ^
-fast-pskip 0 ^
-c:a libmp3lame -qscale:a 2 -r:a 48000 ^
-b:v 10000k -minrate 10000k -maxrate 20000k -bufsize 20000k -g 15 -keyint_min 8 -sc_threshold 0 ^
-bf 2 ^
-me_method umh -qmin 5 -deblock 0:0:0 ^
-threads 4 ^
-filter_complex "[0:v][1:v] overlay=enable='between(t,0,4)'[o1]; [2:v] scale=0.5*iw:0.5*ih; [o1][2:v] overlay=enable='between(t,0,4)'" ^
-color_primaries bt709 -color_trc bt709 -colorspace bt709 ^
"%%~nf_01.mp4"
)
I have two overlays in the same row, overlay on the video like the image bellow :
[on the top]This overlay must be encoded or not (it depend of the workflow) at 85% of luminosity.
[Left]In half-gray you could see the position for the video which must not encoded again. [Right] you see the typo on overlay.
[Background] (gray checker) you see the encoded video in two pass...
I don't know how to do that so I abort it, maybe you find the solution and solve it !
Answer : it's just impossible in libx264 of FFMPEG !
Output should be:
- 2,5 Mbit/s CBR H.264/mpeg4
- Audio 128kbit/s joint stereo mpeg2
Command i am using as last looks like this, and stream is not CBR.
ffmpeg.exe "udp://xxx.xx.xxx.x:xxxx?fifo_size=700000&buffer_size=12000k&pkt_size=1316"
-vf "hqdn3d" -c:v libx264 -refs 4
-minrate:v 2500k -me_method hex -maxrate 2500k -sc_threshold 45 -bufsize 300k -b:v 2500k-bsf
h264_mp4toannexb -flags +ilme+ildct+loop+mv4+cgop -profile:v baseline
-x264opts 8x8dct -x264opts mixed-refs -x264opts weightp=0 -g 100
-c:a mp2 -ab 128k -ar 48000 -fflags +igndts+genpts+sortdts -f mpegts
"udp://#xxx.xxx.x.x:xxxx?buffer_size=100k&pkt_size=1316" -threads 0 -v 0
Try
ffmpeg "udp://xxx.xx.xxx.x:xxxx?fifo_size=700000&buffer_size=12000k&pkt_size=1316"
-vf "hqdn3d" -me_method hex -sc_threshold 45 -refs 4 -flags +ilme+ildct+loop+mv4+cgop -g 100
-c:v libx264 -minrate:v 2300k -maxrate 2372k -bufsize 2400k -b:v 2300k
-bsf h264_mp4toannexb -profile:v baseline
-x264opts mixed-refs:weightp=0:nal-hrd=cbr
-c:a mp2 -ab 128k -ar 48000 -fflags +igndts+genpts+sortdts
-threads 0 -v 0
-f mpegts -muxrate 2500k "udp://#xxx.xxx.x.x:xxxx?buffer_size=100k&pkt_size=1316"
Added nal-hrd=cbr to x264opts and removed 8x8dct which is used in High profile.
If your input is interlaced, deinterlace it (add yadif filter).
I am trying to apply a watermark and also to scale it to the current video size via ffmpeg command:
Here is my inital comand that works without watermark
ffmpeg -v 0 -vcodec h264_qsv -i 'udp://#some.ip:1234?fifo_size=1000000&overrun_nonfatal=1&buffer_size=1000000' -vf scale=iw:ih -profile baseline -acodec aac -ac 1 -ar 44100 -ab 64k -deinterlace -vcodec h264_qsv -bufsize 4000k -maxrate 3500k -preset veryfast -vb 2000k -f flv rtmp://127.0.0.1/app/720
Now I tried to add the picture as a watermark. There was a conflict while using with -vf scale=-1:ih*.5, in order to eliminate the problem I used -s 1280x720 to specify the resolution for the video stream, it worked but not properly.
ffmpeg -v 0 -vcodec h264_qsv -i 'udp://#some.ip:1234?fifo_size=1000000&overrun_nonfatal=1&buffer_size=1000000' -i logo.png -filter_complex "overlay=10:10" -s 1280x720 -profile baseline -acodec aac -ac 1 -ar 44100 -ab 64k -deinterlace -vcodec h264_qsv -bufsize 4000k -maxrate 3500k -preset veryfast -vb 2000k -f flv rtmp://some.ip/app/720
The problem:
How can I specify in the ffmpeg command the both sizes of video and logo(watermark) so they don't conflict with each other and they auto adjust like -vf scale=-1:ih*.5 dose.
Thank you!
The scale2ref filter allows one to a video/image stream with reference to the dimensions of another video or image stream
e.g.
ffmpeg -v 0 -vcodec h264_qsv -i 'udp://#some.ip:1234?fifo_size=1000000&overrun_nonfatal=1&buffer_size=1000000' \
-loop 1 -i logo.png \
-filter_complex "[1:v][0:v]scale2ref=iw/8:-1[logo][0v];[0v][logo]overlay=10:10[v]" \
-map "[v]" -map 0:a \
-profile baseline -acodec aac -ac 1 -ar 44100 -ab 64k \
-deinterlace -vcodec h264_qsv -bufsize 4000k -maxrate 3500k \
-preset veryfast -vb 2000k \
-f flv rtmp://some.ip/app/720
Here 1:v - the logo image - is being scaled to 1/8th the width of [0:v], the H.264 stream.
For the command given in the comments:
ffmpeg -v 0 -vcodec h264_qsv -i 'input' \
-loop 1 -i logo.png \
-filter_complex "[0:v]scale=iw:ih[v0]; \
[1:v][v0]scale2ref=iw/8:-1[logo][0v];[0v][logo]overlay=10:10[v]" \
-map "[v]" -map 0:a \
-profile baseline -acodec aac -ac 1 -ar 44100 -ab 64k \
-deinterlace -vcodec h264_qsv -bufsize 4000k -maxrate 3500k \
-preset veryfast -vb 2000k \
-f flv out1 \
-filter_complex "[0:v]scale=-1:ih/2[v0]; \
[1:v][v0]scale2ref=iw/8:-1[logo][0v];[0v][logo]overlay=10:10[v2]" \
-map "[v2]" -map 0:a \
-profile baseline -acodec aac -ac 1 -ar 44100 -ab 64k \
-deinterlace -vcodec h264_qsv -bufsize 4000k -maxrate 2000k \
-preset veryfast -vb 1000k \
-f flv out2 \
-filter_complex "[0:v]scale=-1:ih/4[v0]; \
[1:v][v0]scale2ref=iw/8:-1[logo][0v];[0v][logo]overlay=10:10[v3]" \
-map "[v3]" -map 0:a \
-profile baseline -acodec aac -ac 1 -ar 44100 -ab 64k \
-deinterlace -vcodec h264_qsv -bufsize 4000k -maxrate 1000k \
-preset veryfast -vb 512k \
-f flv out3 \