[Libav-user] ffmpeg Question

2023-10-24 Thread Kevin Marois
I'm not sure if this is the right place to ask. If not could you please tell me 
where to ask?

My company is searching for a replacement for VKC Media Player. Can you tell me 
if your app meets the following requirements?

Operation
Used For
Supporting both IPv4 and IPv6
We need player to support cameras over both IPv4 and IPv6 network protocols
Integration to WPF
Player should be able to easily integrate into our current C# WPF/WinForms 
applications
Sixteen Cameras
We need to support displaying upto 16 cameras while keeping optimal performance
Taking Snapshots
We use the option to take snapshots while displaying Audio selection in Live 
Streaming
Support audio and video codecs
( H.264 / H.265 and AAC / MP3 )
Required for playing with live streaming and playback mode
RTSP and HLS Stream
Playing RTSP and HLS stream in Client and Live Streaming
Playing DVR Data
Playing for DVR data in Live Streaming, we should be able to jump back and 
forth with ease while watching

We also need accurate duration/time of the DVR data (which increases every X 
seconds while the live stream is ongoing)
Start/Stop
Be able to start and stop playing the streams
Debug Logs
We have been relying on VLC logs for debugging issues from time to time
Custom Parameters
We change player options for controlling the behaviour of player such as 
changing Network caching which helps in reducing delay from camera to player
Custom Menu for player
We display custom right click menu on player
Set volume
We change volume level for players and mute audio as needed
Disable Keyboard/Mouse input
We disable the player for taking input from Keyboard and Mouse on player
Custom Menu for player
We display custom right click menu on player
Player Events
Click, DoubleClick, Mouse, Down
Mediaplayer Events
Opening, EncounteredError, Buffering, LengthChanged, TimeChanged, 
PositionChanged, EndReached
Track/Stream Info
Allow to get track/stream info to get details about track
Set Crop Rectangle
Used for digital zoom in live streaming
Select channel to play the audio
(e.g., Left vs Right)
Nice to have: Ability to select which channel for audio


Thank you,
Kevin Marois
kmar...@axon.com
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Re: [Libav-user] FFMpeg Question about paket pts, dts and duration parameters

2020-04-28 Thread Denis Gottardello


*./ffmpeg -i rtsp://192.168.1.11:554/onvif1 test.mpg*
it works, with this output:

Input #0, rtsp, from 'rtsp://192.168.1.11:554/onvif1':  

 
 Metadata: 
   title   : H.264 Video, RtspServer_0.0.0.2 
 Duration: N/A, start: 0.00, bitrate: N/A 
   Stream #0:0: Video: h264 (Baseline), yuv420p(progressive), 1280x720, 24.92 
tbr, 90k tbn, 
180k tbc 
   Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s 
Stream mapping: 
 Stream #0:0 -> #0:0 (h264 (native) -> mpeg1video (native)) 
 Stream #0:1 -> #0:1 (pcm_alaw (native) -> mp2 (native)) 
Press [q] to stop, [?] for help 
[mpeg @ 0x55c6280f5c00] VBV buffer size not set, using default size of 230KB 
If you want the mpeg file to be compliant to some specification 

 
Like DVD, VCD or others, make sure you set the correct buffer size  

 
Output #0, mpeg, to 'test.mpg': 

 
 Metadata: 
   title   : H.264 Video, RtspServer_0.0.0.2 
   encoder : Lavf58.29.100 
   Stream #0:0: Video: mpeg1video, yuv420p, 1280x720, q=2-31, 200 kb/s, 25 fps, 
90k tbn, 
25 tbc 
   Metadata: 
 encoder : Lavc58.54.100 mpeg1video 
   Side data: 
 cpb: bitrate max/min/avg: 0/0/20 buffer size: 0 vbv_delay: -1 
   Stream #0:1: Audio: mp2, 16000 Hz, mono, s16, 160 kb/s 
   Metadata: 
 encoder : Lavc58.54.100 mp2 
frame=  789 fps= 28 q=31.0 Lsize=2382kB time=00:00:32.65 bitrate= 
597.5kbits/s 
dup=635 drop=0 speed=1.18x 



In data martedì 28 aprile 2020 18:14:45 CEST, Carl Eugen Hoyos ha scritto:
> Am Di., 28. Apr. 2020 um 16:57 Uhr schrieb Denis Gottardello
> 
> :
> > Hi, after having implemented the remuxing.c example my program works with
> > file to file but not with rtsp camera to file.
> Does it work with ffmpeg (the application)?
> 
> Does the rtsp demuxer returns any useful timestamps at all for video
> if you read more packets but if you do not try to write anything?
> 
> Carl Eugen
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http://www.denisgottardello.it[2]
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Skype: mrdebug


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[2] http://www.denisgottardello.it
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Re: [Libav-user] FFMpeg Question about paket pts, dts and duration parameters

2020-04-28 Thread Carl Eugen Hoyos
Am Di., 28. Apr. 2020 um 16:57 Uhr schrieb Denis Gottardello
:
>
>
>
>
>
> Hi, after having implemented the remuxing.c example my program works with 
> file to file but not with rtsp camera to file.

Does it work with ffmpeg (the application)?

Does the rtsp demuxer returns any useful timestamps at all for video
if you read more packets but if you do not try to write anything?

Carl Eugen
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[Libav-user] FFMpeg Question about paket pts, dts and duration parameters

2020-04-28 Thread Denis Gottardello

Hi, after having implemented the remuxing.c example my program works with file 
to file but not with rtsp camera to file.
I think that the problem is related to the following lines of code:

/Packet.pts= av_rescale_q_rnd(Packet.pts, pAVStreamIn->time_base, 
pAVStreamOut->time_base, static_cast(AV_ROUND_NEAR_INF | 
AV_ROUND_PASS_MINMAX));/
/Packet.dts= av_rescale_q_rnd(Packet.dts, pAVStreamIn->time_base, 
pAVStreamOut->time_base, static_cast(AV_ROUND_NEAR_INF | 
AV_ROUND_PASS_MINMAX));/
/Packet.duration= av_rescale_q(Packet.duration, pAVStreamIn->time_base, 
pAVStreamOut->time_base);/

The code works with file to file but not using an rtsp camera as source to 
file. I obtain an error at av_interleaved_write_frame function. Please have a 
look at the following log report: 

AudioIndex Packet.pts: 0, Packet.dts: 0, Packet.duration: 160
AudioIndex Packet.pts: 120, Packet.dts: 120, Packet.duration: 160  
AudioIndex Packet.pts: 312, Packet.dts: 312, Packet.duration: 160
AudioIndex Packet.pts: 432, Packet.dts: 432, Packet.duration: 160
AudioIndex Packet.pts: 632, Packet.dts: 632, Packet.duration: 160
AudioIndex Packet.pts: 752, Packet.dts: 752, Packet.duration: 160
AudioIndex Packet.pts: 952, Packet.dts: 952, Packet.duration: 160
AudioIndex Packet.pts: 1072, Packet.dts: 1072, Packet.duration: 160
AudioIndex Packet.pts: 1272, Packet.dts: 1272, Packet.duration: 160
AudioIndex Packet.pts: 1392, Packet.dts: 1392, Packet.duration: 160
AudioIndex Packet.pts: 1592, Packet.dts: 1592, Packet.duration: 160
AudioIndex Packet.pts: 1712, Packet.dts: 1712, Packet.duration: 160
*VideoIndex Packet.pts: 9223372036854775808, Packet.dts: 9223372036854775808, 
Packet.duration: 0*

As you can see the pts, dts and duration parameters relative to audio stream is 
ok, the video parameters abolutally not. How can I do to rewrite the video 
parameters? Can anyone explain?
How can I calculate pts and dts using current time stamp?
Have you got a example for me?
I have tryed in this way but does not work
*Packet.pts= Packet.dts= VideoPacketNumber++;*
Many thanks.


+39.347.4070897
http://www.labcsp.com[1]
http://www.denisgottardello.it[2]
GMT+1
Skype: mrdebug


[1] http://www.labcsp.com
[2] http://www.denisgottardello.it
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