I have a problem with Greek subtitle font size when I map a subtitle file into a video in ffmpeg.
I ran below code:
When I play it in VLC, it gives very small subtitle size.
Then I tried to increase subtitle fontsize but no luck.
Also tried this one but failed again:
As default fontsize in ffmpeg is 16, this time I increased fontsize from 16 to 30 in vf_drawtext.c file, then I reconfigured ffmpeg and replaced new ffmpeg binary file but nothing changed.
PS: I tested below code as -vf is invalid when -c:v copy is selected..
Could you please explain how I may do this?
Thanks
Boris
Last edited by baris35; 06-03-2017 at 04:21 PM..
Reason: last attempt
Hello all I am a new linux user (Redhat 7) and I am trying to learn how to operate the system. I have a couple problems one the font size for all windows withing the OS are too small and even though I found a couple places to configure font size I can't find where to change the font size for the... (2 Replies)
hi all ,
i was just wondering if i can specify the font size when i am printing from solaris .
i am using solaris 9 and hp laserjet 1230 .
i dont want to change the global variable for the printer driver .
i just want to print a file with small font and the others with normal fonts .
... (1 Reply)
How can I enlarged the font size when I opened the pdf files with ghostscript or ghostview in solaris 8 for sparc. The font is so small that I can't see it!]
Help me please! (0 Replies)
Can any help me to change the default font type and its size..
To clear more about my question..
Once i login to my unix domain... the font it displaying is of small size...
all my shell commands i am executing in $ prompt also carries the same style(ls, date and echo...)
i searched whole... (2 Replies)
Hi,
I would like to change the font size in bash. I know how do it in ksh:
F_VDOBLE="\033#6"
print "${F_VDOBLE}Esto es..."
But in bash I don't know
Could you help me please?
Many thanks! (5 Replies)
Hi everyone,
I am fairly new to shell scripting. I want to read in numbers from a file (one number per line). This works perfectly fine
while read CurrentLine
do
echo $CurrentLine
done < myfile
and yields the correct output:
272
745
123
If I however run a ffmpeg... (2 Replies)
I have two hosts i.e host1 & host2.
host1 has the desired font details of which are below:
uname -a
Linux host1 3.10.0-693.21.1.el7.x86_64 #1 SMP Wed Mar 7 19:03:37 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
$ fc-match
StRydeRegular.ttf: "St Ryde" "Regular"
I need the same default font... (27 Replies)
Discussion started by: mohtashims
27 Replies
LEARN ABOUT CENTOS
iowatcher
iowatcher(1) General Commands Manual iowatcher(1)NAME
iowatcher - Create visualizations from blktrace results
SYNOPSIS
iowatcher OPTIONS...
DESCRIPTION
iowatcher graphs the results of a blktrace run. It can graph the result of an existing blktrace, start a new blktrace, or start a new blk-
trace and a benchmark run. It can then create an image or movie of the IO from a given trace. iowatcher can produce either SVG files or
movies in mp4 format (with ffmpeg) or ogg format (with png2theora).
OPTIONS --help Print a brief usage summary.
-d, --device <device>
Controls which device you are tracing. You can only trace one device at a time for now. It is sent directly to blktrace, and only
needed when you are making a new trace.
-D, --blktrace-destination <destination>
Destination for blktrace.
-p, --prog <program>
Program to run while blktrace is run.
-K, --keep-movie-svgs
Keep the SVG files generated for movie mode.
-t, --trace <file|directory>
Controls the name of the blktrace file. iowatcher uses a dump from blkparse, so -t tries to guess the name of the corresponding per
CPU blktrace data files if the dump file doesn't already exist. If you want more than one trace in a given graph, you can specify
-t more than once. If a directory is specified, iowatcher will use the name of the directory as the base name of the dump file and
all trace files found inside the directory will be processed.
-l, --label <label>
Sets a label in the graph for a trace file. The labels are added in the same order the trace files are added.
-m, --movie [spindle|rect]
Create a movie. The file format depends on the extension used in the -o filename.* option. If you specify an .ogv or .ogg exten-
sion, the result will be Ogg Theora video, if png2theora is available. If you use an .mp4 extension, the result will be an mp4
video if ffmpeg is available. You can use any other extension, but the end result will be an mp4. You can use --movie=spindle or
--movie=rect, which changes the style of the IO mapping.
-T, --title <title>
Set a title to be placed at the top of the graph.
-o, --output <file>
Output filename (default: trace.svg).
-r, --rolling <seconds>
Control the duration for the rolling average. iowatcher tries to smooth out bumpy graphs by averaging the current second with sec-
onds from the past. Larger numbers here give you flatter graphs.
-h, --height <height>
Set the height of each graph
-w, --width <width>
Set the width of each graph
-c, --columns <columns>
Numbers of columns in graph output
-x, --xzoom <min:max>
Limit processed time range to min:max
-y, --yzoom <min:max>
Limit processed sectors to min:max
-a, --io-plot-action <action>
Plot given action (one of Q,D,C) in IO graph
-P, --per-process-io
Distinguish between processes in IO graph
-O, --only-graph <graph>
Add a single graph to the output (see GRAPHS). By default all the graphs are included, but with -O you get only the graphs you ask
for. -O may be used more than once.
-N, --no-graph <type>
Remove a single graph from the output (see GRAPHS). This may also be used more than once.
GRAPHS
Choices for -O and -N are:
io, tput, latency, queue_depth, iops, cpu-sys, cpu-io, cpu-irq, cpu-user, cpu-soft
EXAMPLES
Generate graph from the existing trace.dump:
iowatcher -t trace.dump -o trace.svg
Skip the IO graph:
iowatcher -t trace.dump -o trace.svg -N io
Only graph tput and latency:
iowatcher -t trace.dump -o trace.svg -O tput -O latency
Generate a graph from two runs, and label them:
iowatcher -t ext4.dump -t xfs.dump -l Ext4 -l XFS -o trace.svg
Run a fio benchmark and store the trace in trace.dump, add a title to the top, use /dev/sda for blktrace:
iowatcher -d /dev/sda -t trace.dump -T 'Fio Benchmark' -p 'fio some_job_file'
Make a movie from an existing trace:
iowatcher -t trace --movie -o trace.mp4
iowatcher(1)