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Compiler: How to encode YUV422 to h.264 format video file

hongji li
Prodigy 75 points

Tool/software: TI C/C++ Compiler

Hi TI

  I have 4 camera, camera output YUV422 format data, I want encode YUV422 format data save as h.264 video file

  How can i do it？

The current plan I'm working on， 4 camera(YUV422) --> capture(UYVY) --> LDC(NV12) --> Mosaic(NV12) --> Encode(h.264)。

it works occured error， the error is ：

[MCU2_0] 47.909020 s: data will not fit into plane (1442880 < 3220288)
[MCU2_0] 47.909080 s: VX_ZONE_ERROR:[tivxVideoEncoderProcess:303] MM_ENC Buf Prepare failed
[MCU2_0] 47.909127 s: VX_ZONE_ERROR:[tivxTargetKernelExecute:370] Kernel process function for [com.ti.hwa.video_encoder] returned error code: -1

  • 0
    Prodigy 75 points

    Has anyone replay？

  • 0 in reply to hongji li
    TI__Expert 5970 points

    Hi Hongji li,

    From the error log I assume you are using TDA4 RTOS SDK.

    The error points to the scenario where you are providing different Image resolutions for graph create and process.

    So, please share you application code for creating and processing the graph along with the resolution

    Also please share the SDK version you are using.

    Thanks & Regards,

    Sunita.

  • 0 in reply to Sunita Nadampalli
    Prodigy 75 points

    Hi Sunita，
        I use TDA4 RTOS SDK， the version is 7.0

        The attachment is my source code

    thank you!app_video.rar

  • 0 in reply to hongji li
    TI__Expert 5970 points

    Hi Hongji li,

    Thanks sharing more details. Looks like you have created the graph with 1280x720 resolution, however not clear on which images are being used for processing the encode graph.

    Please print the below highlighted parameters and check what buffer resolutions are being sent to graph process.

    File: tiovx/tiovx_dev/kernels_j7/hwa/venc/vx_video_encoder_target.c

    Function: tivxVideoEncoderProcess {

    ..................

    ..................


    encoder_obj->in_buff.chId = encoder_obj->channel_id;
    encoder_obj->in_buff.type = MM_BUF_TYPE_VIDEO_INPUT;
    encoder_obj->in_buff.num_planes = input_image_desc->planes;
    encoder_obj->in_buff.size[0] = input_image_desc->mem_size[0];
    encoder_obj->in_buff.size[1] = input_image_desc->mem_size[1];
    encoder_obj->in_buff.buf_addr[0] = input_image_target_ptr_y;
    encoder_obj->in_buff.buf_addr[1] = input_image_target_ptr_uv;

    encoder_obj->out_buff.chId = encoder_obj->channel_id;
    encoder_obj->out_buff.type = MM_BUF_TYPE_VIDEO_OUTPUT;
    encoder_obj->out_buff.num_planes = 1;
    encoder_obj->out_buff.size[0] = output_bitstream_desc->mem_size;
    encoder_obj->out_buff.buf_addr[0] = bitstream;

    mm_status = MM_ENC_BufPrepare(&encoder_obj->in_buff, encoder_obj->channel_id);
    mm_status |= MM_ENC_BufPrepare(&encoder_obj->out_buff, encoder_obj->channel_id);

    .............

    ...................

    }

    Thanks & Regards,

    Sunita.