I have a file which i've encrypted in CENC, and i'm trying to now decrypt it using mp4decrypt from the bento4 mp4decrypt tools. The file consists of a single h264 track in an mp4 file. This is the output of mp4info --verbose
File:
major brand: dash
minor version: 0
compatible brand: iso6
compatible brand: dash
Movie:
duration: 0 ms
time scale: 120000
fragments: yes
Found 1 Tracks
Track 1:
flags: 7 ENABLED IN-MOVIE IN-PREVIEW
id: 1
type: Video
duration: 0 ms
language: und
media:
sample count: 0
timescale: 120000
duration: 0 (media timescale units)
duration: 0 (ms)
bitrate (computed): 6386.097 Kbps
display width: 1920.000000
display height: 817.021271
Sample Description 0
[ENCRYPTED]
Coding: encv
Scheme Type: cenc
Scheme Version: 65536
Scheme URI:
Protection System Details:
[schi] size=8+32
[tenc] size=12+20
default_AlgorithmID = 1
default_IV_size = 8
default_KID = [23 b6 70 1b e9 8b 4e ea 80 4e 9b 59 6c 59 37 a5]
Bytes: 0000000000000001000000000000000000000000000000000780033000480000004800000000000000010a41564320436f64696e670000000000000000000000000000000000000000000018ffff000000476176634301640028ffe1002e67640028acc8501e019effc0c7c0c81a808080a000007d200017701c00000301c9c380000773595359803c60c65801000668e938233c8f
Coding: avc1 (H.264)
Width: 1920
Height: 816
Depth: 24
AVC Profile: 100 (High)
AVC Profile Compat: 0
AVC Level: 40
AVC NALU Length Size: 4
AVC SPS: [67640028acc8501e019effc0c7c0c81a808080a000007d200017701c00000301c9c380000773595359803c60c658]
AVC PPS: [68e938233c8f]
Codecs String: avc1.640028
So to decrypt it using the above key, surely I would do:
mp4decrypt --key 1:23b6701be98b4eea804e9b596c5937a5 --show-progress input.mp4 output.mp4
MP4 Decrypter - Version 1.4
(Bento4 Version 1.5.0.0)
(c) 2002-2015 Axiomatic Systems, LLC
usage: mp4decrypt [options] <input> <output>
Options are:
--show-progress : show progress details
--key <id>:<k>
<id> is either a track ID in decimal or a 128-bit KID in hex,
<k> is a 128-bit key in hex
(several --key options can be used, one for each track or KID)
note: for dcf files, use 1 as the track index
note: for Marlin IPMP/ACGK, use 0 as the track ID
note: KIDs are only applicable to some encryption methods like MPEG-CENC
--fragments-info <filename>
Decrypt the fragments read from <input>, with track info read
from <filename>.
All I get is zero output on the command-line, and the output file is still unplayable.
Any ideas? the video track is for the whole file, it's not split into segments itself.
You are trying to decipher the file with the Key ID instead of the Key itself. "23 b6 70 1b e9 8b 4e ea 80 4e 9b 59 6c 59 37 a5" is the identifier of the key, not the key itself. Sure you will not decipher. It is in the file in order for the DRM system to retrieve the key (sending or searching the keyID for getting the Key itself in return).
Try to use the key value to decipher.
Your mp4encrypt command should have been used with an option like:
--key 1::0000000000000000
as your IV size is 8
Related
I have developed a UMTS core network using a home nodeB (HNB) which the mobile phones (or UEs) can register on my network and get the required services such as call service. I have implemented all the required procedures for call service and I can establish a successful call for my connected UEs.
In one of the most important procedure, i.e Call Proceeding, I have identified the coding of speech transferred between UEs and core. Here is my coding options (in wireshark):
GSM A-I/F DTAP - Call Proceeding
Protocol Discriminator: Call Control; call related SS messages (3)
.... 0011 = Protocol discriminator: Call Control; call related SS messages (0x3)
1... .... = TI flag: allocated by receiver
.000 .... = TIO: 0
00.. .... = Sequence number: 0
..00 0010 = DTAP Call Control Message Type: Call Proceeding (0x02)
Bearer Capability 1 - (Spare)
Element ID: 0x04
Length: 6
Octet 3
0... .... = Extension: Extended
.11. .... = Radio channel requirement: Spare
...0 .... = Coding standard: GSM standardized coding
.... 0... = Transfer mode: circuit
.... .000 = Information transfer capability: Speech (0x0)
Octets 3a - Speech Versions
0... .... = Extension: Extended
.0.. .... = Coding: octet used for extension of information transfer capability
..00 .... = Spare bit(s): 0
.... 0010 = Speech version indication: GSM full rate speech version 2(GSM EFR) (0x2)
0... .... = Extension: Extended
.0.. .... = Coding: octet used for extension of information transfer capability
..00 .... = Spare bit(s): 0
.... 1000 = Speech version indication: GSM full rate speech version 5(FR AMR-WB) (0x8)
0... .... = Extension: Extended
.0.. .... = Coding: octet used for extension of information transfer capability
..00 .... = Spare bit(s): 0
.... 0100 = Speech version indication: GSM full rate speech version 3(FR AMR) (0x4)
0... .... = Extension: Extended
.0.. .... = Coding: octet used for extension of information transfer capability
..00 .... = Spare bit(s): 0
.... 0101 = Speech version indication: GSM half rate speech version 3(HR AMR) (0x5)
1... .... = Extension: No Extension
.0.. .... = Coding: octet used for extension of information transfer capability
..00 .... = Spare bit(s): 0
.... 0001 = Speech version indication: GSM half rate speech version 1(GSM HR) (0x1)
So I can see the RTP packets transferred between UE and core. An instance is mentioned here (in wireshark):
Real-Time Transport Protocol
[Stream setup by RANAP (frame 2950)]
10.. .... = Version: RFC 1889 Version (2)
..0. .... = Padding: False
...0 .... = Extension: False
.... 0000 = Contributing source identifiers count: 0
0... .... = Marker: False
Payload type: DynamicRTP-Type-96 (96)
Sequence number: 56611
[Extended sequence number: 56611]
Timestamp: 424448575
Synchronization Source identifier: 0x5c260101 (1545994497)
RFC 2198: Redundant Audio Data
Header 1: PT=ITU-T G.728
0... .... = Follow: Not set
.000 1111 = Payload type: ITU-T G.728 (15)
Payload: 0028ba44776b3eee7a050039cdaa521cc20ac08d2bcf1818…
I have aggregated all RTP packets payload. How can I convert the aggregated bytes to a hearable audio?
Use Case
When a user records an audio file and uploads to firebase storage, run a trigger that crops a clip of that file and saves it to a "preview" directory.
Problem
When the file arrives on the server, it is just dead air before the start time (10 seconds) and then doesn't stop after the duration of 10 seconds is exceeded. Whatever I put in the "-t" and "-ss" arguments seems to have no impact on the output file - not cropping correctly.
Environment
mac client / firebase storage
node v8.1.0
ffmpeg v3.2.2
fluent-ffmpeg v2.1.2
Node Code
var command = new ffmpeg({ source: tempFilePath, timeout: 0 })
.setFfmpegPath(ffmpegPath)
.setFfprobePath(ffprobePath)
.inputOption('-t', '10')
.inputOption('-ss', '10')
.outputOption('-acodec', 'copy')
.on('start', function(commandLine) {
console.log('Spawned Ffmpeg with command: ', commandLine);
})
.on('end', function() {
console.log('Preview file cropping done successfully');
})
.on('error', function(err, stdout, stderr) {
var build = err;
if (!stdout === '') { build = build + '\n' + stdout; }
build = build + '\n' + stderr;
console.log(build);
}).save(tempFilePath);
Ffmpeg Command
Spawned Ffmpeg with command: ffmpeg -t 10 -i
/tmp/2EB100B0-6C1E-4D51-9087-764CA653AFC720170711232034.aac -y -acodec
aac /tmp/2EB100B0-6C1E-4D51-9087-764CA653AFC720170711232034.aac
Console Output
$ ffmpeg -t 10 -i E506FE2E-DC81-4DD8-B751-211F7FD9A25820170816160502.aac -y -acodec aac output.aac -loglevel debug
ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
built with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --enable-libvidstab --enable-libx265 --disable-doc --arch=x86_64 --enable-runtime-cpudetect
libavutil 55. 34.100 / 55. 34.100
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.100 / 57. 56.100
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Splitting the commandline.
Reading option '-t' ... matched as option 't' (record or transcode "duration" seconds of audio/video) with argument '10'.
Reading option '-i' ... matched as input url with argument 'E506FE2E-DC81-4DD8-B751-211F7FD9A25820170816160502.aac'.
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
Reading option '-acodec' ... matched as option 'acodec' (force audio codec ('copy' to copy stream)) with argument 'aac'.
Reading option 'output.aac' ... matched as output url.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option y (overwrite output files) with argument 1.
Applying option loglevel (set logging level) with argument debug.
Successfully parsed a group of options.
Parsing a group of options: input url E506FE2E-DC81-4DD8-B751-211F7FD9A25820170816160502.aac.
Applying option t (record or transcode "duration" seconds of audio/video) with argument 10.
Successfully parsed a group of options.
Opening an input file: E506FE2E-DC81-4DD8-B751-211F7FD9A25820170816160502.aac.
[file # 0x7fe42f700420] Setting default whitelist 'file,crypto'
[aac # 0x7fe431000000] Format aac probed with size=2048 and score=51
[aac # 0x7fe431000000] Before avformat_find_stream_info() pos: 0 bytes read:32928 seeks:4 nb_streams:1
[aac # 0x7fe431000000] All info found
[aac # 0x7fe431000000] Estimating duration from bitrate, this may be inaccurate
[aac # 0x7fe431000000] After avformat_find_stream_info() pos: 37888 bytes read:98464 seeks:4 frames:50
Input #0, aac, from 'E506FE2E-DC81-4DD8-B751-211F7FD9A25820170816160502.aac':
Duration: 00:01:24.28, bitrate: 335 kb/s
Stream #0:0, 50, 1/28224000: Audio: aac (LC), 44100 Hz, stereo, fltp, 335 kb/s
Successfully opened the file.
Parsing a group of options: output url output.aac.
Applying option acodec (force audio codec ('copy' to copy stream)) with argument aac.
Successfully parsed a group of options.
Opening an output file: output.aac.
[file # 0x7fe42f7016e0] Setting default whitelist 'file,crypto'
Successfully opened the file.
detected 4 logical cores
[graph 0 input from stream 0:0 # 0x7fe42f701880] Setting 'time_base' to value '1/44100'
[graph 0 input from stream 0:0 # 0x7fe42f701880] Setting 'sample_rate' to value '44100'
[graph 0 input from stream 0:0 # 0x7fe42f701880] Setting 'sample_fmt' to value 'fltp'
[graph 0 input from stream 0:0 # 0x7fe42f701880] Setting 'channel_layout' to value '0x3'
[graph 0 input from stream 0:0 # 0x7fe42f701880] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
[audio format for output stream 0:0 # 0x7fe42f702060] Setting 'sample_fmts' to value 'fltp'
[audio format for output stream 0:0 # 0x7fe42f702060] Setting 'sample_rates' to value '96000|88200|64000|48000|44100|32000|24000|22050|16000|12000|11025|8000|7350'
[AVFilterGraph # 0x7fe42f6101a0] query_formats: 5 queried, 12 merged, 0 already done, 0 delayed
Output #0, adts, to 'output.aac':
Metadata:
encoder : Lavf57.56.100
Stream #0:0, 0, 1/44100: Audio: aac (LC), 44100 Hz, stereo, fltp, delay 1024, 128 kb/s
Metadata:
encoder : Lavc57.64.101 aac
Stream mapping:
Stream #0:0 -> #0:0 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
Last message repeated 1 times
[output stream 0:0 # 0x7fe42f701ee0] EOF on sink link output stream 0:0:default.
No more output streams to write to, finishing.
[aac # 0x7fe431001200] Trying to remove 344 more samples than there are in the queue
size= 160kB time=00:00:10.00 bitrate= 130.9kbits/s speed=20.2x
video:0kB audio:157kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.881580%
Input file #0 (E506FE2E-DC81-4DD8-B751-211F7FD9A25820170816160502.aac):
Input stream #0:0 (audio): 432 packets read (398208 bytes); 432 frames decoded (442368 samples);
Total: 432 packets (398208 bytes) demuxed
Output file #0 (output.aac):
Output stream #0:0 (audio): 431 frames encoded (441000 samples); 432 packets muxed (160716 bytes);
Total: 432 packets (160716 bytes) muxed
432 frames successfully decoded, 0 decoding errors
[AVIOContext # 0x7fe42f611040] Statistics: 0 seeks, 432 writeouts
[aac # 0x7fe431001200] Qavg: 4508.253
[AVIOContext # 0x7fe42f7004c0] Statistics: 458912 bytes read, 4 seeks
How to hash a string using SHA-1 and base64 encode? I have package openssl and I can use sha1 function to has a string but I don't know how to combine sha-1 and base64 encode to my string.
For testing purpose, my string is:
HY8&V5EDJO8NYT9C2011-12-13T00:44:02ZTest123
I need to SHA-1 and base64 encode to output:
nuoiyUX6m+irC5rvB4QUSycfHGc=
Please could someone kindly advice?
As you are using the openssl package, use the following function
openssl::base64_encode(openssl::sha1(charToRaw("HY8&V5EDJO8NYT9C2011-12-13T00:44:02ZTest123")))
openssl generally operates on a file,basically stdin in a byte stream.
I am passing "HY8&V5EDJO8NYT9C2011-12-13T00:44:02ZTest123" in a form of printf, In a sequence of non-0 bytes (which may or may not form valid characters in UTF-8 or other character set/encoding).
Since the input is passed from the terminal, on a keyboard. The terminal will send corresponding characters (as written on the key label) encoded in its configured character set.
Usually, set in the current locale. You can find that by using a command "locale charmap".
We have to make sure the input is first convierted to UTF-8 and then passed to openssl. that the reason i have used icovn to convert bytes to the corresponding encoding in UTF-8.
So below command can be used to convert our string in sha1 and then base64 using openssl.
printf %s "HY8&V5EDJO8NYT9C2011-12-13T00:44:02ZTest123" | iconv -t utf-8 | openssl dgst -sha1 -binary | openssl enc -base64
$ echo nuoiyUX6m+irC5rvB4QUSycfHGc= | base64 -d | xxd -g 1
00000000: 9e ea 22 c9 45 fa 9b e8 ab 0b 9a ef 07 84 14 4b ..".E..........K
00000010: 27 1f 1c 67
And:
$ echo -n "HY8&V5EDJO8NYT9C2011-12-13T00:44:02ZTest123" | openssl sha1
(stdin)= 9eea22c945fa9be8ab0b9aef0784144b271f1c67
And:
$ cat test.c
#include <stdio.h>
#include <string.h>
#include <openssl/sha.h>
int main()
{
unsigned char ibuf[] = "HY8&V5EDJO8NYT9C2011-12-13T00:44:02ZTest123";
unsigned char obuf[20];
SHA1(ibuf, strlen(ibuf), obuf);
int i;
for (i = 0; i < 20; i++) {
printf("%02x ", obuf[i]);
}
printf("\n");
return 0;
}
And then:
$ gcc -I /usr/local/include/ test.c /usr/local/lib/libcrypto.a -o test.exe
$ ./test.exe
9e ea 22 c9 45 fa 9b e8 ab 0b 9a ef 07 84 14 4b 27 1f 1c 67
Maybe a little bit late, but try
$ echo -n "HY8&V5EDJO8NYT9C2011-12-13T00:44:02ZTest123" | openssl dgst -binary -sha1 | openssl enc -base64
This will:
Echo the string to the pipe
openssl will digest the string using SHA1 algorithm and pipe it
openssl will encode the resulting digested string from step 2 into a new string using base64 algorithm
And it will be echoed back to you.
I'm running an Linux Image (kernel 3.2.8) for beagleboard-xm on QEMU's 1.4.0 emulator Ubuntu distribution for 13.04. My image is created using Buildroot beagle_defconfig. I added some pkgs to be able to debug a little.
QEMU call cmd:
`$ sudo qemu-system-arm -M beaglexm -m 1024 -sd ./test.img -clock unix -serial stdio -device usb-mouse -device usb-kbd -serial pty -serial pty`
[sudo] password for emperador:
char device redirected to /dev/pts/3 (label serial1)
char device redirected to /dev/pts/4 (label serial2)
What I want to do is to have a communication between guest and host across serial the 4 differents ttyO present on the guest. QEMU offer facilities to redirect the trafic to some device in the host side. My problem goes like this:
At the guest kernel boot Im able to see that my UART where enabled
[ 2.682040] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.777947] omap_uart.0: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0
[ 2.794967] omap_uart.1: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1
[ 2.814942] omap_uart.2: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2
[ 2.966825] console [ttyO2] enabled
[ 2.984777] omap_uart.3: ttyO3 at MMIO 0x49042000 (irq = 80) is a OMAP UART3
In fact when I go see in to /proc/tty/driver and I do a cat on OMAP-SERIAL Im able to see this
serinfo:1.0 driver revision:
0: uart:OMAP UART0 mmio:0x4806A000 irq:72 tx:0 rx:0 CTS|DSR|CD
1: uart:OMAP UART1 mmio:0x4806C000 irq:73 tx:0 rx:0 CTS|DSR|CD
2: uart:OMAP UART2 mmio:0x49020000 irq:74 tx:268 rx:37 RTS|CTS|DTR|DSR|CD
3: uart:OMAP UART3 mmio:0x49042000 irq:80 tx:0 rx:0 CTS|DSR|CD
I know that ttyO2 is working because my console is been redirected to it. The thing is that doing a set serial on any of the ttyO I get the following message:
[root#enu driver]# setserial -a /dev/ttyO0
/dev/ttyO0, Line 0, UART: undefined, Port: 0x0000, IRQ: 72
Baud_base: 3000000, close_delay: 50, divisor: 0
closing_wait: 3000
Flags: spd_normal
The same goes with ttyO2.
I tried to set some settings to any of the ttyO with setserial but I always get the same message:
[root#enu ~]# setserial /dev/ttyO0 uart 8250
setserial: can't set serial info: Invalid argument
[root#enu ~]# setserial /dev/ttyO0 port 0x4806a000
setserial: can't set serial info: Invalid argument
While looking at guest /proc/tty/drives this is what we see
/dev/tty /dev/tty 5 0 system:/dev/tty
/dev/console /dev/console 5 1 system:console
/dev/ptmx /dev/ptmx 5 2 system
/dev/vc/0 /dev/vc/0 4 0 system:vtmaster
sdio_uart /dev/ttySDIO 249 0-7 serial
acm /dev/ttyACM 166 0-31 serial
ttyprintk /dev/ttyprintk 5 3 console
OMAP-SERIAL /dev/ttyO 253 0-3 serial
serial /dev/ttyS 4 64-95 serial
pty_slave /dev/pts 136 0-1048575 pty:slave
pty_master /dev/ptm 128 0-1048575 pty:master
unknown /dev/tty 4 1-63 console
Basically I want to establish a serial communication between a guest and a host, but the serial ports on the guest side aren't well configured.
/sys/class/tty show that tty drivers had been linked to a serial device.
has I showed up before, only omap uarts have been initialized and attached to ttyO*. notice that the console is been redirected ttyO2 by kernel configs. but because I added -serial stdio, console is been redirected to the terminal that invoked QEMU.
If I redirect the console using at first -serial pty instead of -serial stdio , I'm able to prompt the console in minicom by opening the pty created on the host side. Still nothing happen on the others pty created on the host side to communicate across other ports.
On host side I open /dev/pts/3 and /dev/pts/4 with minicom or by doing cat on them
On guest side:
Whent I do echo "test" > /dev/ttyO0 or 1 or 3 nothing. but when I do it on ttyO2, "test" prompt on the console terminal (which is normal).
now when using any of the ttyS:
echo "test" > /dev/ttyS0
I get
-bash: echo: write error: Input/output error
I made some research about this error and what I found is that is could be many things. But one thing that I noticed was that no device beside serial has been assigned to ttyS. and looking at /proc/tty/driver/serial we see this :
serinfo:1.0 driver revision:
0: uart:unknown port:00000000 irq:0
1: uart:unknown port:00000000 irq:0
2: uart:unknown port:00000000 irq:0
3: uart:unknown port:00000000 irq:0
also setserial -a /dev/ttyS0 confrim this:
/dev/ttyS0, Line 0, UART: unknown, Port: 0x0000, IRQ: 0
Baud_base: 0, close_delay: 50, divisor: 0
closing_wait: 3000
Flags: spd_normal
I managed to do serial communication with muliples ports usig grml image on a x86 architecture. So its seems my host side is fine.
If anyone have ever made something like this work before on QEMU -M beaglexm or any other ARM architecture, I would gladly take any details on the VM used, QEMU's version and distribution as well as the kernel details and image configs used.
I found what my problem was, QEMU ins't mapping the serial chardev of any extra -serial pty.
After doing the this Invoke command:
sudo qemu-system-arm -M beaglexm -m 1024 -sd ./test.img -clonix -serial stdio -device usb-mouse -device usb-kbd -serial pty -serial pty -monitor pty
char device redirected to /dev/pts/5 (label compat_monitor0)
char device redirected to /dev/pts/7 (label serial1)
char device redirected to /dev/pts/10 (label serial2)
We can see that 2 extra serials where created with the label serial 1 and 2.
But if I look at the tree info
(qemu) info qtree
dev: omap_uart, id "uart4"
revision = 82
mmio_size = 4096
baudrate = 812500
chardev = uart4
irq 3
mmio 0000000049042000/0000000000001000
dev: omap_uart, id "uart3"
revision = 82
mmio_size = 4096
baudrate = 812500
chardev = serial0
irq 3
mmio 0000000049020000/0000000000001000
dev: omap_uart, id "uart2"
revision = 82
mmio_size = 4096
baudrate = 812500
chardev = uart2
irq 3
mmio 000000004806c000/0000000000001000
dev: omap_uart, id "uart1"
revision = 82
mmio_size = 4096
baudrate = 812500
chardev = uart1
irq 3
mmio 000000004806a000/0000000000001000
We clearly see that just the label serial0 was attached to a uart (the one setted to be the console). The other labels (serial1 and serial2) are no where to be found.
With the working image of grml that jofel was realy nice to tell me we see this:
dev: i440FX-pcihost, id ""
irq 0
bus: pci.0
type PCI
dev: PIIX3, id ""
addr = 01.0
romfile = <null>
rombar = 1
multifunction = on
command_serr_enable = on
class ISA bridge, addr 00:01.0, pci id 8086:7000 (sub 1af4:1100)
bus: isa.0
type ISA
dev: isa-serial, id ""
index = 2
iobase = 0x3e8
irq = 4
chardev = serial2
wakeup = 0
isa irq 4
dev: isa-serial, id ""
index = 1
iobase = 0x2f8
irq = 3
chardev = serial1
wakeup = 0
isa irq 3
dev: isa-serial, id ""
index = 0
iobase = 0x3f8
irq = 4
chardev = serial0
wakeup = 0
isa irq 4
all 3 serial lebels were attached to a chardev.
Now I just have to ask a new question about how making QEMU to link those lables to my beagleboard uarts.
Also I would like to add I think that setserial did not outputed any info about ttyO's because it doesn't support omap uarts. setserial ? shows what devices are supported. In the case of the ttyS's, I think its because the tty drivers are installed but there is no other type of uarts bisede omap uarts emulated for bealgeboard in QEMU.
Thanks alot for everyone that took a look on this question and specialy jofel.
Following is my bat file:
#echo off
mediainfo --Inform=file://template.txt "in.mp4" >info.txt
Following is my template.txt
General;File is: %FileName%\r\n
Video;\r\nFormat: %Format%\r\nCodecID: %CodecID%\r\nResolution: %Width%x%Height%\r\nDAR: %DisplayAspectRatio/String% or %DisplayAspectRatio%\r\nPAR: %PixelAspectRatio%\r\nFrameMode: %FrameRate_Mode%\r\nVideoBitrateMode: %BitRate_Mode%\r\nScanType: %ScanType%
Audio;\r\nAudioCodec: %Format%\r\nAudioBitrateMode: %BitRate_Mode%
Following is the output (in info.txt)
File is: in
Format: AVC
CodecID: avc1
Resolution: 1280x720
DAR: 16:9 or 1.778
PAR: 1.000
FrameMode: VFR
VideoBitrateMode:
ScanType: Progressive
AudioCodec: AAC
AudioBitrateMode: VBR
No matter what I do I can't get MediaInfo to give BitRate_Mode for any given file?
Following is the CLI help document for mediainfo:
Help doc
I did exhaustive tests and I have found that most of the time mediainfo doesn't return the %BitRate_Mode% on video tracks, but it does return the %BitRate_Maximum% and if you compare it to the %BitRate% and it is different, it is a VBR video, here is my template:
General;Name.........: %FileName%.%FileExtension%\r\nSize.........: %FileSize/String%\r\nDuration.....: %Duration/String3%\r\n
Video;Resolution...: %Width%x%Height%\r\nCodec........: %Codec/String% %Format_Profile%\r\nBitrate......: %BitRate/String%\r\nMax Bitrate..: %BitRate_Maximum/String%\r\nFramerate....: %FrameRate% fps\r\nAspect Ratio.: %DisplayAspectRatio/String%\r\n
Audio;Audio........: %Language/String% %BitRate/String% %BitRate_Mode% %Channel(s)% chnls %Codec/String%\r\n
Text;%Language/String%
Text_Begin;Subs.........:
Text_Middle;,
Text_End;.\r\n
It will retirn something like this:
Name.........: My Video.m4v
Size.........: 8.23 GiB
Duration.....: 02:20:02.880
Resolution...: 1920x800
Codec........: AVC High#L3.0
Bitrate......: 7 504 Kbps
Max Bitrate..: 27.1 Mbps
Framerate....: 23.976 fps
Aspect Ratio.: 2.40:1
Audio........: English 448 Kbps CBR 6 chnls AC3
Audio........: Spanish 448 Kbps CBR 6 chnls AC3
Subs.........: English, Spanish.