Mpeg Ts MUxer and Its header

[Shrishty Deorari]

Hi,

I am unsing mpegtsmux element for Ts muxing of H264 video data. I realized that MpegTsMux is actually appending the 188 Byte header after every 3 frames before while muxing,

I was wondering if Somehow I can change this and append/add Ts header for every frame or every I frame.

Is this possible?

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[Mikl]

Hi,

Did you looked here?

https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-plugins/html/gst-plugins-bad-plugins-mpegtsmux.html

Mikl

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[Sebastian Dröge-3]

On Thu, 2016-10-20 at 18:30 +0530, Shrishty Deorari wrote:
> Hi,
>
> I am unsing mpegtsmux element for Ts muxing of H264 video data. I
> realized that MpegTsMux is actually appending the 188 Byte header
> after every 3 frames before while muxing, 
> I was wondering if Somehow I can change this and append/add Ts header
> for every frame or every I frame. 
> Is this possible?

Can you provide some testcase that shows the problem you're seeing?

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Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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[Shrishty Deorari]

Hi,

Here is the sample pipeline  which we are using:
/gst-launch-1.0 rtspsrc location=rtsp://URL ! rtph264depay ! h264parse ! mpegtsmux ! filesink location="/tmp/tmp15.ts"

and attached is the ts file created. The Ts header is coming randomly and not for every I frame.

On Mon, Oct 24, 2016 at 12:23 PM, Sebastian Dröge <[hidden email]> wrote:

On Thu, 2016-10-20 at 18:30 +0530, Shrishty Deorari wrote:
> Hi,
>
> I am unsing mpegtsmux element for Ts muxing of H264 video data. I
> realized that MpegTsMux is actually appending the 188 Byte header
> after every 3 frames before while muxing, 
> I was wondering if Somehow I can change this and append/add Ts header
> for every frame or every I frame. 
> Is this possible?

Can you provide some testcase that shows the problem you're seeing?

--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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[knorr]

What do you mean by 188 byte TS header?

The file you shared has a MPEG-TS header for each 188 byte packet. Normally the header is 4 byte.

Occasionally, the header will include a adaptation field with PCR timestamps etc. Perhaps this is what you are referring to by header?

On Mon, Oct 24, 2016 at 12:40 PM, Shrishty Deorari <[hidden email]> wrote:

Hi,

Here is the sample pipeline  which we are using:
/gst-launch-1.0 rtspsrc location=rtsp://URL ! rtph264depay ! h264parse ! mpegtsmux ! filesink location="/tmp/tmp15.ts"

and attached is the ts file created. The Ts header is coming randomly and not for every I frame.

On Mon, Oct 24, 2016 at 12:23 PM, Sebastian Dröge <[hidden email]> wrote:

On Thu, 2016-10-20 at 18:30 +0530, Shrishty Deorari wrote:
> Hi,
>
> I am unsing mpegtsmux element for Ts muxing of H264 video data. I
> realized that MpegTsMux is actually appending the 188 Byte header
> after every 3 frames before while muxing, 
> I was wondering if Somehow I can change this and append/add Ts header
> for every frame or every I frame. 
> Is this possible?

Can you provide some testcase that shows the problem you're seeing?

--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com

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