Using the i.MX27 video codec - Revision history

JulienB at 13:40, 23 January 2014

2014-01-23T13:40:05Z

← Older revision		Revision as of 15:40, 23 January 2014
Line 1:		Line 1:
	The i.MX27 (used on the APF27) has an internal DSP which can be used to encode/decode video stream, coming from various sources (CSI, buffer, etc...). To use it Freescale provides some useful tools.		The i.MX27 (used on the APF27) has an internal DSP which can be used to encode/decode video stream, coming from various sources (CSI, buffer, etc...). To use it Freescale provides some useful tools.
			For VPU usage on recent Linux kernels, instructions are being built [[Talk:Using_the_i.MX27_video_codec\|here]].

	==Installation==		==Installation==

JulienB at 16:42, 20 April 2010

2010-04-20T16:42:24Z

← Older revision		Revision as of 18:42, 20 April 2010
Line 65:		Line 65:
	* [http://www.freescale.com/files/dsp/doc/app_note/AN3677.pdf?fpsp=1&WT_TYPE=Application%20Notes&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation Freescale's Application Note 3677: Video Streaming on the i.MX27]		* [http://www.freescale.com/files/dsp/doc/app_note/AN3677.pdf?fpsp=1&WT_TYPE=Application%20Notes&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation Freescale's Application Note 3677: Video Streaming on the i.MX27]
	* [http://www.bitshrine.org/ Freescale's LTIB (Linux Target Image Builder)]		* [http://www.bitshrine.org/ Freescale's LTIB (Linux Target Image Builder)]

			[[Category:Video]]
			[[Category:Vision]]

JulienB: add more infos for gstreamer

2009-09-07T09:45:32Z

add more infos for gstreamer

@@ Line 47: / Line 47: @@
                    ! rtph264depay ! ffdec_h264 ! videoscale ! video/x-raw-yuv, width=320, height=240 ! xvimagesink sync=false
 </pre>
 ==Links==

JulienB: /* Usage */

2009-09-07T09:40:44Z

Usage

@@ Line 10: / Line 10: @@
 {{Note|Currently, decoder/reader on the PC side has to be launched BEFORE the encoding tool on the APF27 (if using RTP stream)}}
 ''mxc_vpu_test.out'' (yeah Freescale has strange ways to name its executables ;-) ) allows you to decode/encode video streams.
 This tool needs a configuration file (some are given as examples).
 <pre class="apf">
 # mxc_vpu_test.out -c codec.cfg.net.enc.vga.h264
 </pre>

JulienB: /* Usage */

2009-09-07T09:35:40Z

Usage

← Older revision		Revision as of 11:35, 7 September 2009
Line 8:		Line 8:

	==Usage==		==Usage==
			{{Note\|Currently, decoder/reader on the PC side has to be launched BEFORE the encoding tool on the APF27 (if using RTP stream)}}
	''mxc_vpu_test.out'' (yeah Freescale has strange ways to name its executables ;-) ) allows you to decode/encode video streams.		''mxc_vpu_test.out'' (yeah Freescale has strange ways to name its executables ;-) ) allows you to decode/encode video streams.
	This tool needs a configuration file (some are given as examples).		This tool needs a configuration file (some are given as examples).

JulienB: /* Links */

2009-08-24T14:16:21Z

Links

← Older revision		Revision as of 16:16, 24 August 2009
Line 27:		Line 27:

	==Links==		==Links==
	* [http://2009.rmll.info/Easy-H-264-video-streaming-with.html ~~Presentation~~ about "Video streaming on i.MX27" at the LSM 2009 (Nantes)]		* [http://2009.rmll.info/Easy-H-264-video-streaming-with.html Armadeus System's presentation about "Video streaming on i.MX27" at the LSM 2009 (Nantes)]
			* [http://www.freescale.com/files/dsp/doc/app_note/AN3677.pdf?fpsp=1&WT_TYPE=Application%20Notes&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation Freescale's Application Note 3677: Video Streaming on the i.MX27]
	* [http://www.bitshrine.org/ Freescale's LTIB (Linux Target Image Builder)]		* [http://www.bitshrine.org/ Freescale's LTIB (Linux Target Image Builder)]

JulienB: /* Decoding incomming streams on your PC */

2009-08-24T14:13:48Z

Decoding incomming streams on your PC

← Older revision		Revision as of 16:13, 24 August 2009
Line 14:		Line 14:
	</pre>		</pre>

	==Decoding ~~incomming~~ streams on your PC==		==Decoding incoming streams on your PC==
	* Decoding an RTP H.264 stream coming in UDP on port 6666 and displaying it at original size:		* Decoding an RTP H.264 stream coming in UDP on port 6666 and displaying it at original size:
	<pre class="host">		<pre class="host">

JulienB: Add host cmds

2009-08-24T13:59:53Z

Add host cmds

@@ Line 12: / Line 12: @@
 <pre class="apf">
 # mxc_vpu_test.out -c codec.cfg.net.enc.vga.h264
 </pre>

JulienB: /* Links */

2009-08-24T09:50:08Z

Links

← Older revision		Revision as of 11:50, 24 August 2009
Line 15:		Line 15:

	==Links==		==Links==
			* [http://2009.rmll.info/Easy-H-264-video-streaming-with.html Presentation about "Video streaming on i.MX27" at the LSM 2009 (Nantes)]
	* [http://www.bitshrine.org/ Freescale's LTIB (Linux Target Image Builder)]		* [http://www.bitshrine.org/ Freescale's LTIB (Linux Target Image Builder)]

JulienB: creation

2009-06-10T11:43:18Z

creation

New page

The i.MX27 (used on the APF27) has an internal DSP which can be used to encode/decode video stream, coming from various sources (CSI, buffer, etc...). To use it Freescale provides some useful tools.

==Installation==
<pre class="host">
$ make freescale-tools
</pre>
* then reflash your rootfs and you will get some stuff in ''/usr/bin/vpu/''

==Usage==
''mxc_vpu_test.out'' (yeah Freescale has strange ways to name its executables ;-) ) allows you to decode/encode video streams.
This tool needs a configuration file (some are given as examples).
<pre class="apf">
# mxc_vpu_test.out -c codec.cfg.net.enc.vga.h264
</pre>

==Links==
* [http://www.bitshrine.org/ Freescale's LTIB (Linux Target Image Builder)]