OMAP35x DVSDK Build v3.01.00.06 Known Issues and Limitations

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This page lists issues and limitations that are known to exist in the OMAP35x DVSDK software for build v3.01.00.06.

Known Issues

1. SDOCM00068455 : DM3730: Kernel crashes when memory hole is used.
2. SDOCM00065773 : In order to enable run time switch from LCD to DVI, it is required to specify "omapfb.mode=dvi:720x480MR-16@60" in the bootargs. If the default display is LCD with the above setting in the bootargs the frame buffer does not allocate memory equivalent to 720x480x(colorformat_bytesperpixel). It allocates only 720x438x(colorformat_bytesperpixel)
3. SDOCM00065749 : OMAP3530: udev error messages are thrown during boot sometimes
4. SDOCM00041241 : SVIDEO: Video quality issue on TV With SVIDEO interface
5. SDOCM00041259 : DVTB: Control-C causes stack-trace to be dumped on to terminal in case of DVTB decode.
6. SDOCM00050734 : While using DVTB application for video playback, video stream display becomes faster at the end of the stream
7. SDOCM00056814 : Video decode demo hangs in stress: Behaviour observed in ES2.1 EVM The video decode demo fails (hangs) in stress after runninng 1055 iterations with error message "Error: Failed to create loader thead" for OMAP EVM 2.1. The same behaviour is not observed in OMPA EVM 3.1(with memory hole configuration) even after running 2850 iterations
8. SDOCM00056890 : Video/Image decode uisng DVTB application fails in stress: Behaviour observed in ES2.1 EVM The DVTB video decode and display fails in stress for OMPA EVM 2.1 after some 1150 itaration. It throws the error message "Thread_create: Cannot allocate memory" and "Segmentation fault". The same behaviour is not observed in OMPA EVM 3.1(with memory hole configuration) even after running 3000 iterations
9. SDOCM00057149 : SDMA performance is not enough to perform framecopies of VGA video @30FPS
10. SDOCM00057184 : OSD flicker observed when switching between decode demo and third party demo menu buttons in main menu screen
11. SDOCM00053887 : Specific stream issue: Issue with playing Video (Mpeg2) and Audio (Mp3) together. When streams from the container are extracted and use these as elementary streams with both Decode Demo and DVTB and if video and audio are played out, then the audio thread will not exit in both the cases
12. SDOCM00056334 : Static IP is getting overwritten by DHCP call in initialization script for NFS. This is a known issue. If static IP needs to be used, then the initialization script needs to be modified to comment the dhcp server initiation.
13. SDOCM00057319 : A mild click is heard at the end of the audio playback.
14. SDOCM00055964 : A mild beep is heard at the beginning of audio playback.
15. SDOCM00059851 : Video decode demo:OMAP3530:Demo hangs the target if control-c is pressed, board needs to be reset
16. SDOCM00060835 : System won't boot if mem= kernel option is not specified.
17. SDOCM00052712 : DVTB does not remove spurious data from the non standard MP3 streams.DVTB does not remove remove these bytes and gives it to codec for processing. It can cause codec to fail with extended error.
18. SDOCM00056242 : MMC Detection: OMAP fails to detect 8-bit MMC cards.
19. SDOCM00057547 : Decode demo throws the warning message about clock recieved during first run with DVI interface.
20. SDOCM00060903 : System hangs when playing an AVI clip from an SD card using GStreamer. This is observerd on ES2.1 EVM and not on ES3.1 EVM. Errors reported on the console such as "mmcblk0: retrying using single block read". This is due to a silicon defect in ES2.1 which was subsequently fixed in OMPA3 silicon version ES3.1
21. SDOCM00062098 : Mem copies in CMEM space takes 10x more than memory copies of Os allocated memory.Performing a memory copy of a CMEM allocated buffer takes 10 times more than a memory copy of malloc'ed pointers. While a 2MB copy in CMEM space takes 220ms, it's OS allocated buffer counterpart takes only 25ms.

Limitations

1. OMAP3530: (Interface Demo) GUI interface keyboard showing incorrect Active/Passive mode of keys.
2. OMAP3530: The encode demos currently support only D1-NTSC and D1-PAL resolution.
3. OMAP3530: For encode demo, when no input is connected, the error message is not user friendly.
4. The maximum sample rate supported by the ALSA Audio driver included in the PSP release is 48KHz.
5. Maximum of 16M memory can only be provided for double buffering when rotation is enabled.
6. The Audio Capture for Speech encode is not set by default,we can set this value using the amixer utility.Steps for enabling Audio Capture for Speech encode are mentioned in the OMAP35x DVEVM Getting Started Guide
7. The path for audio capture for speech encode is not set by default in the ALSA driver. Use the amixer utility for checking the audio capture. This utility enables the required path in the ALSA driver for audio capture.
8. SDMA performance is not enough to perform framecopies of VGA video @30FPS. There is no burst mode support in the SDMA copy APIs in the SCPY interface provided by framework components
9. The Mpeg4 encode and H264 Decode combinations fails.This is due to the codec server as per DDRALGHEAP#What_are_the_limitations_of_the_OMAP35x_Codec_Server.3F. The DDRALGHEAP needs to be increased.
10. In NAND Filesystem(JFFS2 Filesystem) the video stops after 40-50 seconds while audio plays on.Once audio has finished both the drivers close and restart.Reason why you see this is since the streams present in JFFS2 are truncated so that the size of the file could be adjusted to fit jffs2 without disturbing the quality. These streams are of 40-50 seconds duration only. The original streams size(present in NFS filesystem) were about 76MB per steam so we could not package it in JFFS2.

Defects Fixed

1. SDOCM00067255 : DM3730: In encode demo video is jerky for D1 resolution
2. SDOCM00067235 : DM3730/OMAP3530 Keypad entries swapped for S7 and S13 keys.
3. SDOCM00067169 : DM3730:- DVI display does not work.
4. SDOCM00066380 : (OMAP) Installer silent mode issues - collated
5. SDOCM00066291 : OMAP3530: Thirdparty Demos: Does not work. No errors are thrown on console
6. SDOCM00065987 : OMAP3530: DVTB Video decode demo start with flicker.
7. SDOCM00065984 : OMAP3530: For Video Decode demo, "Video standard not supported" is coming for 176x144, 320x240, and 704 x 480 resolutions.
8. SDOCM00065748 : OMAP3530: Encode demo preview start with flicker using OOBE interface.
9. SDOCM00065746 : OMAP3530: (Interface Demo) GUI interface keyboard showing incorrect Active/Passive mode of keys.
10. SDOCM00062179 : OMAP3530:DVTB: Assumes source path as valid even if filename is not specified
11. SDOCM00067584 : OMAP3530: Installer asks twice for Installation of codec server on computer.
12. SDOCM00067167 : OMAP3530:- (Encode Demo Application) The preview statistics are not correct for Video resolution 720x576.
13. SDOCM00066422 : OMAP Power - Minor OOBE issues
14. SDOCM00066404 : OMAP3530: The statistics are not correct for PAL decode.
15. SDOCM00066393 : OMAP3530: In encode.txt and decode.txt, OMAP3530 release version mentioned is not correct.
16. SDOCM00066392 : OMAP3530: Decode demo does not clean OSD at exit, for decode demo run with –o option.
17. SDOCM00066242 : OMAP3530: Decode demo: When changed to dvi display mode, some error messages are observed.
18. SDOCM00066095 : OMAP3530: The clock Rate of DSP is 430 instead 520 in Server.tcf in the Codec Server Package.
19. SDOCM00066053 : OMAP3530:PSP package extension is gz it must be tgz
20. SDOCM00066000 : OMAP3530: DVTB scripts are not correct, the engine is given as encode or decode it must be encodedecode.
21. SDOCM00063078 : decode: Audio on DVI 480P?
22. SDOCM00063072 : Incorrect trademark usage
23. SDOCM00062810 : SW6 configuration not consistent in OMAP35x Evaluation Module Setup Guide (Step2) and HW User Guide
24. SDOCM00062399 : OMAP3530:Codec engine:default paths for components install dir mentioned in xdcpaths.mak have older version
25. SDOCM00062266 : OMAP - Codec Server Documentation URL to Build Specification has wrong case
26. SDOCM00062262 : OMAP DVSDK - Latest Installers support silent installation via -S option
27. SDOCM00062173 : (Child) Decode demo throws the error message during first run with DVI interface
28. SDOCM00061732 : cs1omap3530_1_00_01:Codec Server Size mentioned in the release notes is wrong
29. SDOCM00058806 : OMAP3530: "TFTP error: 'Unsupported option(s) requested' (8) Starting again", when using TFTP Linux server
30. SDOCM00057794 : OMAP3530: <4>Spurious irq 95: 0xffffffdf, please flush posted write for irq 26
31. SDOCM00057701 : video decode demo with -f option fails with segmentation fault error
32. SDOCM00057123 : DVTB displays wrong message while initilzing speech decoder
33. SDOCM00057094 : OMAP3530: Errors thrown while booting the EVM 2.1 and 3.1
34. SDOCM00051441 : Audio underrun is observed in MP3 when executed with dvtb through combo version 3.16
35. SDOCM00051250 : Documentation: Some decode demo options are not documented in decode.txt
36. SDOCM00041340 : Extended parameter support is required in dvtb for doing performance testing.
37. SDOCM00034397 : Default power level needs changed
38. SDOCM00066826 : OMAP3530:Decode demo with -l option fails after 1 hour 15 minutes for mp3 and 20 minutes for video
39. SDOCM00063107 : decode.txt: Incorrect description for frameskip
40. SDOCM00061565 : Tftp requests hang when using PumpKIN server included in \OMAP35x-PSP-SDK-02.01.02.09\host-tools\windows
41. SDOCM00060835 : System won't boot if mem= kernel option is not specified
42. SDOCM00067582 : OMAP3530: MD5SUM is not provided for many installers.
43. SDOCM00067581 : OMAP3530: Documentation GSG updates required.
44. SDOCM00057498 : Reflashing x-loader and u-boot didn't work in OMAP3530 EVM
45. SDOCM00057374 : Low power Audio only demo displays error messages before running.
46. SDOCM00051616 : CE examples cause TLB error with default DVSDK demo loadmodules.sh
47. SDOCM00050119 : The demo GUI screen does not adhere to the GUI spec 'omap3530_dvsdk_gui_spec.ppt'

See Also

• OMAP35x_DVSDK_Build_v3.01.00.05_Known_Issues_and_Limitations
• OMAP35x_DVSDK_Build_v3.01.00.03_Known_Issues_and_Limitations
• OMAP35x_DVSDK_Build_v3.00.02.44_Known_Issues_and_Limitations
• OMAP35x_DVSDK_Build_v3.00.01.42_Known_Issues_and_Limitations
• OMAP35x_DVSDK_Build_v3.00.00.40_Known_Issues_and_Limitations