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Multimedia Software Codecs

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H.264
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  • Forum Post: H.264 Encoder Multiple Slices per Frame - SPRABA9-April 2010

    MRI
    If we want to encode multiple slices per frame do we use the sliceSize parameter? Is this the only way to do it? Why dows it state in section 2.2.2.1 on page 5 that the sliceSize parameter should be populated when H.241 is used? Mike
    on Jun 3, 2010

  • Forum Post: Comapre between H264 DM365 codecs 1.10.00.08 & Platinum Codec 2.00.00.09

    sujit mahapatro
    Hi has any one started using the Platinum Codec released version 2.00.00.09 this month. i tried to port the H264 encoder replacing H264 encoder 1.10.00.08 in to my camera running on DM365. i am trying to find out the differences between the two using DM365 only ( Not DM368). i have not yet...
    on Jul 13, 2010

  • Forum Post: Re: sdk / codec for ccs-only development for dm365

    MW51194
    Hi, in which form will the modules be offered? As XDM compliant modules to use with DSP/BIOS or in another form? And where can I get / download these modules? Regards!
    on Jul 21, 2010

  • Forum Post: Re: H.264 slice data modification

    Rafael Madeira55777
    Kapil, First of all, tanks for your fast reply. I don't have the codec source code to recompile and do this changes. Where i can find it? Just appending the data (SPS and PPS and Slice reader) won't work because setting pic_order_cnt_type = 2 makes things being generated slightly different...
    on Aug 31, 2010

  • Forum Post: H264 codec V2.0 Bit-Rate controls don’t enough to imprecise, DM365 SDK_2_10_01_18

    Tanyu
    Hi, At constant Bit-Rate, Bit-Rate controls don’t enough to imprecise. For example, suppose Current Bit-Rate is 2M, then I mask camera or detach video cable then attached, at this time real Bit-Rate change to 4M above. Few second, about 1-2 senond Bit-Rate recover normal. Best Regards ...
    on Sep 17, 2010

  • Forum Post: After setting H264 dynamic parameter mvSADoutFlag = 1, occur CMEM ERROR

    Tanyu
    Hi, all I according to "Application Parameter Settings for DM365 H.264 Encoder" document to setting setting mvSADoutFlag = 1. Then I get CMEM ERROR, follow is my parameter setting and error information: Parameter setting: .... h264Params.entropyMode = 1; h264Params.transform8x8FlagIntraFrame...
    on Sep 20, 2010

  • Forum Post: 720p h.264 encoding with reduced frequency?

    MW51194
    Hello, on the evmdm365 board I have to reduce the PLL1 output for SYSCLK4 from 121.5 MHz (default) to 108 MHz because I need a unique frequency on the SPI interface. Unfortunately, this is the clock for EDMA and the other peripherals too. The datasheet of the DM365 says, that this clock should...
    on Nov 10, 2010

  • Forum Post: DM6467 Codec performance Unstable

    Willian Zhou
    Hello All, When a customer use the H.264 codec provided for DM6467 (DVSDK_2_00_00_18) to process a static video stream , the performance of the codec seems to be not so 'static'. There can be some 23fps or 15 fps displayed among lots of 30 fps , even if there is no change to the input. And...
    on Nov 17, 2010

  • Forum Post: Debugging Codec Issue (H.264)

    Kenric Smith
    I have a video application that gets sensor data on a DM365, uses the previewer and resizer, and then encodes the video. It works for MPEG4, but when I try the H.264 codec, I get an error. Using DMAI_DEBUG=2, I get the following: @0x00026091:[T:0x41a36490] ti.sdo.dmai - [Venc1] Creating encoder h264enc...
    on Nov 19, 2010

  • Forum Post: DM365 H264 Platinum Codec ROI Enabling

    sujit mahapatro
    Hi, i enabeled ROI feature by setting Dynamic Params-> enableROI = 1; input Arguments for ROI parameters before the VIDENC_process() call. inArgs.roiPrm.numROI = 5 inArgs.roiParameters.listROI[0].topLeft.x = 80; inArgs.roiParameters.listROI[0].topLeft.y = 128; inArgs.roiParameters.listROI...
    on Oct 15, 2010

  • Forum Post: H264 Encoder on dm6467 (CE version 2.26.2.11 hangs after single program execution)

    BrandyJ
    Hi! I have been working on a question in the linux forum - which I think about it now, was probably not the right spot but was anyhow being helped (which was nice). The TI employee came to the conclusion that my problem might actually be that the codec version I am using is returning a buffer handle...
    on Jan 13, 2011

  • Forum Post: DM6467 H.264 Encoder Latency

    babs76
    Can someone tell me (or point me to a document) what the latency of the H.264 encoder is? I understand that there is algorithm latency (e.g. the algorithm takes 14.4 ms until it spits out an answer), but is there multiframe latency associated with the encoder? Does the encoder need multiple frames buffered...
    on Feb 1, 2011

  • Forum Post: Re: Little difference between CBR and VBR with H.264 encoder

    Rafael_Han
    Thanks Veeru, Here is my parameters. encodingPreset XDM_HIGH_SPEED rateControlPreset IVIDEO_USER_DEFINED maxFramerate 30000 maxBitrate 8000000 profileIdc 100 levelIdc...
    on Mar 30, 2011

  • Forum Post: Re: Little difference between CBR and VBR with H.264 encoder

    Rafael_Han
    Thanks Yashwant, Exactly, I have upgraded linuxutils to 2.24.04.05, fc to 2.24.01, and h264 encoder to 2.00.00.10. I will try 2.1 codecs. regards, Raf
    on Mar 31, 2011

  • Forum Post: Little difference between CBR and VBR with H.264 encoder

    Rafael_Han
    Hi all, I am working on DM365 with dvsdk_2_10_01_18 and H.264 encoder ver. 2.00.00.10. Recently, I meet a problem regarding rate control. I use the following configuration for h.264 encoder ver.2.00.00.10: cbr vbr rateControlPreset IVIDEO_USER_DEFINED IVIDEO_USER_DEFINED...
    on Mar 29, 2011

  • Forum Post: H.264 BP decodes error with VLC

    Rafael_Han
    Hi all, I meet a strange problem regarding H.264 encoder on DM365 today. When I set it to BP@3.0 , the video is normal with Quicktime, but very strange with VLC. I use HP@3.1 before, and both Quicktime and VLC decodes ok. The parameter I changed is: profileIdc: 100->66 levelIdc: 31...
    on Mar 31, 2011

  • Forum Post: IVIDEO_STORAGE and IVIDEO_USER_DEFINED+rcAlgo=1 has different video quality

    Rafael_Han
    Hi all, I am using h.264 encoder ver 2.00.00.10. I find that the video quality is good when I set : rateControlPreset = IVIDEO_STORAGE But video quality degrades when I change to: rateControlPreset = IVIDEO_USER_DEFINED rcAlgo = 1 All the other parameters are the same.
    on Apr 2, 2011

  • Forum Post: Re: IVIDEO_STORAGE and IVIDEO_USER_DEFINED+rcAlgo=1 has different video quality

    Rafael_Han
    I think I find the reason. Write here for others' reference. I noticed that I frame size is smaller in latter settings than IVIDEO_STORAGE, which means rcQMaxI , rcQMinI are not set good. In fact, I did not set them, thus using default values. Decreasing rcQMaxI will improve quality to near IVIDEO_STORAGE...
    on Apr 2, 2011

  • Forum Post: Embed an icon in video frames to encode

    Yulin
    Hi there, I remember this is done, but not sure if it is done in encoder layer or in other layers and found no pointer to it. Does DM365 H.264 "encoder" implement this feature ? If yes, please indicate the way to activate it. Thanks & regards, Yulin.
    on Apr 7, 2011

  • Forum Post: Re: poor video quality with h.264 platinum encoder on dm365

    Rafael_Han
    Thanks Adithya, my codec settings are:(H.264 platinum encoder 2.00.00.10) params->encodingPreset = XDM_HIGH_QUALITY; params->rateControlPreset = IVIDEO_STORAGE; params->maxFrameRate = 30000 ; params->maxBitRate = 8000000; params->inputChromaFormat = XDM_YUV_420SP; params->dataEndianness...
    on Apr 27, 2011

  • Forum Post: Re: poor video quality with h.264 platinum encoder on dm365

    Rafael_Han
    Attach the clip(9M) (Please visit the site to view this file)
    on Apr 27, 2011

  • Forum Post: poor video quality with h.264 platinum encoder on dm365

    Rafael_Han
    hi all, I meet a problem that video is poor using h.264 platinum encoder on dm365. Briefly, my app captures video with v4l2, encodes it using h.264 encoder from ti, and then streams it using a streaming server. VLC acquires the RTSP and does the decoding, but the decoded video is poor, for obvious...
    on Apr 27, 2011

  • Forum Post: When My program run some time ,My video codec block, this Time frame rate and bit rate is 0.

    jian wang73298
    hello I am wangjian, I have a TI offical's EVM-DM365 board, Now I have miss some problem. When My program run some time ,My video codec block, this Time frame rate and bit rate is 0.appeas the phenomenon's time is uncertain ,and the long time is about one hour ,the short time is gbout 30...
    on May 6, 2011

  • Forum Post: DM365 h264 decode problem

    li guipan
    Hi all: Now, I am debugging h264 decode on dm365 platform with dvsdk_2_10_01_18.I meet this strange problem: 1. The first frame(IDR) decode succeed, but the image larger. (1280x720->1344x768) 2.Since the second frame decode failed, the failed code is 0xC000(outArgs.decodedBufs.extendedError...
    on Jun 14, 2011

  • Forum Post: need information about NAL unit syntax structures

    MW51194
    Hi! Where can I find information about the NAL unit syntax structure used by the H264 codecs? I didn't find anything useful in the internet, e.g. like how the header of such unit is constructed. Regards, MW
    on Jul 12, 2011
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