can't display a video file

[fulinux]

Dear Community,

board: imx6q

BSP version: imx_4.1.15_1.0.0_ga

when i test displaying a video with gplay tool, it shows some errors as follows:

root@imx6qsabresd:/# uname -a

Linux imx6qsabresd 4.1.15+gd5d7c02 #3 SMP PREEMPT Mon May 30 15:15:49 CST 2016 armv7l GNU/Linux

root@imx6qsabresd:/# export GST_DEBUG="*:2"

root@imx6qsabresd:/# gplay-1.0 unit_tests/akiyo.mp4

** Message: GStreamer version 1.6.0

Set VideoSink overlaysink

display(/dev/fb0) resolution is (1920x1080).

====== OVERLAYSINK: 4.0.9 build on May  9 2016 20:06:21. ======

State change from NULL to READY

display(/dev/fb0) resolution is (1920x1080).

0:00:00.157205000   942  0x1620ca0 WARN                 basesrc gstbasesrc.c:3481:gst_base_src_start_complete:<source> pad not activated yet

0:00:00.159509667   942  0x1620ca0 WARN                 basesrc gstbasesrc.c:3481:gst_base_src_start_complete:<source> pad not activated yet

0:00:00.181744667   942  0x163df80 WARN                 basesrc gstbasesrc.c:2391:gst_base_src_update_length:<source> processing at or past EOS

[INFO]  Product Info: i.MX6Q/D/S

[INFO]  Product Info: i.MX6Q/D/S

====== VPUDEC: 4.0.9 build on May  9 2016 20:06:25. ======

        wrapper: 1.0.65 (VPUWRAPPER_ARM_LINUX Build on May  9 2016 19:57:31)

        vpulib: 5.4.33

        firmware: 3.1.1.46072

[INFO]  bitstreamMode 1, chromaInterleave 1, mapType 0, tiled2LinearEnable 0

0:00:00.263779000   942  0x163df80 WARN            videodecoder gstvideodecoder.c:2488:gst_video_decoder_chain:<vpudec0> Received buffer without a new-segment. Assuming timestamps start from 0.

0:00:00.299604000   942  0x163df80 ERROR            overlaysink displaysv4l2.c:252:init_display: gst_imx_v4l2_open_device /dev/video17 failed.

0:00:00.299723000   942  0x163df80 ERROR            overlaysink osink_object.c:465:osink_object_enable_display: init display (master) failed.

0:00:00.299785000   942  0x163df80 ERROR            overlaysink gstosink.c:267:gst_overlay_sink_change_state:<overlaysink0> enable display master failed.

0:00:00.299835667   942  0x163df80 ERROR            overlaysink gstosink.c:291:gst_overlay_sink_change_state:<overlaysink0> No display enabled.

State change from READY to PAUSED

0:00:00.302176667   942 0x7492dcf0 ERROR            overlaysink osink_object.c:422:osink_object_get_display_count: osink object handle is NULL.

0:00:00.302299000   942 0x7492dcf0 ERROR            overlaysink gstosink.c:291:gst_overlay_sink_change_state:<overlaysink0> No display enabled.

0:00:00.302344334   942 0x7492dcf0 ERROR            overlaysink osink_object.c:395:osink_object_unref: osink handle is not correct, current ((nil)), expected ((nil)).

0:00:00.302759667   942 0x7492dcf0 ERROR            overlaysink osink_object.c:422:osink_object_get_display_count: osink object handle is NULL.

0:00:00.302814334   942 0x7492dcf0 ERROR            overlaysink gstosink.c:291:gst_overlay_sink_change_state:<overlaysink0> No display enabled.

0:00:00.302854000   942 0x7492dcf0 ERROR            overlaysink osink_object.c:395:osink_object_unref: osink handle is not correct, current ((nil)), expected ((nil)).

0:00:00.303125667   942 0x7492dcf0 WARN                     bin gstbin.c:2569:reset_state:<vbin> Failed to switch back down to PAUSED

0:00:00.303354667   942 0x7492dcf0 ERROR            overlaysink osink_object.c:422:osink_object_get_display_count: osink object handle is NULL.

0:00:00.303409667   942 0x7492dcf0 ERROR            overlaysink gstosink.c:291:gst_overlay_sink_change_state:<overlaysink0> No display enabled.

0:00:00.303447667   942 0x7492dcf0 ERROR            overlaysink osink_object.c:395:osink_object_unref: osink handle is not correct, current ((nil)), expected ((nil)).

0:00:00.303721667   942 0x7492dcf0 WARN                     bin gstbin.c:2569:reset_state:<playsink> Failed to switch back down to PAUSED

0:00:00.304064000   942 0x7492dcf0 ERROR            overlaysink osink_object.c:422:osink_object_get_display_count: osink object handle is NULL.

0:00:00.304117667   942 0x7492dcf0 ERROR            overlaysink gstosink.c:291:gst_overlay_sink_change_state:<overlaysink0> No display enabled.

0:00:00.304156667   942 0x7492dcf0 ERROR            overlaysink osink_object.c:395:osink_object_unref: osink handle is not correct, current ((nil)), expected ((nil)).

0:00:00.304444334   942 0x7492dcf0 WARN                     bin gstbin.c:2569:reset_state:<bin> Failed to switch back down to PAUSED

** (gplay-1.0:942): WARNING **: state change failed from PAUSED to PLAYING

[Pause (No Repeated)][Vol=1.0][00:00:00/00:00:00]try to play failed

0:00:00.305008667   942  0x163df80 WARN                GST_PADS gstpad.c:3989:gst_pad_peer_query:<streamsynchronizer0:src_0> could not send sticky events

0:00:00.306232000   942  0x163df80 WARN               videopool gstvideopool.c:195:video_buffer_pool_set_config:<videobufferpool0> allocation params alignment 1 is smaller than the max specified video stride alignment 15, fixing

State change from PAUSED to READY

** Message: playengine destroyed

Exit display thread

root@imx6qsabresd:/#

what's wrong? what's should i do? do you want any informations, pls tell me.

Please see the attached with a dts file.

thank you.

fulinux

[igorpadykov]

Hi fulinux

from log:

ERROR

overlaysink displaysv4l2.c:252:init_display

seems lcd is not initialized properly, what lcd is used in the case?

From atatched dts file:

		native-mode = <&timing0>;
		timing0: hsd100pxn1 {
			clock-frequency = <166000000>;
			hactive = <1920>;
			vactive = <1080>;

However "hsd100pxn" (Hannstar LCD) used on Sabre boards has 1024x768

resolution. For 1920x1080 lvds lcd it is necessary to add split mode, like:

https://community.freescale.com/message/525359#525359

Also build fsl-image-gui yocto image and use commands as in attached Linux

Guide sect.7.3 Multimedia use cases

Best regards

igor

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[fulinux · Accepted solution]

Hi igor,

Thank you for your replay. i have found the reason, it was i forgeted to add this:

    v4l2_out {

        compatible = "fsl,mxc_v4l2_output";

        status = "okay";

    };