在应用层的native层中使用mpp报错：dma_buf_map_attachment fd 420 failed

[thiagooo0]

前100帧左右可以编出来，然后就会报下述错误 ，并且生成的都是sei帧。再过几十帧app就会崩溃。有点怀疑某些内存没释放，但是不太知道是哪里的内存。求教

240: dma_buf_map_attachment fd 420 failed(-22) mpp_task_attach_fd:1774: can't import dma-buf 420 mpp_translate_reg_address:1831: reg[ 0]: 0x000001a4 fd 420 failed mpp_task_dump_mem_region:2017: --- dump task 0 mem region --- no memory region mapped mpp_process_task_default:628: alloc_task failed. 2040: session 000000004748aa7d pending list is empty! mpp_msgs_wait:1627: session 41 wait result ret -5

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相关代码如下： enqueue： void MppEncoder::putPacket(char *buf, size_t size) { auto pollRet = mMppApi->poll(mMppCtx, MPP_PORT_INPUT, MPP_POLL_BLOCK); MppTask inputTask = nullptr; auto dequeueRet = mMppApi->dequeue(mMppCtx, MPP_PORT_INPUT, &inputTask); if (inputTask != nullptr) { MppFrame frame = nullptr; auto frameInitRet = mpp_frame_init(&frame);

    MppBuffer buffer = nullptr;
    mpp_buffer_get(group, &buffer, size);

    MppMeta meta = nullptr;
    MppPacket packet = nullptr;
    mpp_buffer_write(buffer, 0, buf, size);

    mpp_frame_set_buffer(frame, buffer);
    mpp_frame_set_width(frame, width);
    mpp_frame_set_height(frame, height);
    mpp_frame_set_hor_stride(frame, width);
    mpp_frame_set_ver_stride(frame, height);
    mpp_frame_set_pts(frame, getTimestamp());

// mpp_frame_set_fmt(frame, MPP_FMT_YUV420SP); mpp_frame_set_fmt(frame, MPP_FMT_BGR888);

    meta = mpp_frame_get_meta(frame);
    mpp_packet_init_with_buffer(&packet, buffer);
    mpp_packet_set_length(packet, 0);
    mpp_meta_set_packet(meta, KEY_OUTPUT_PACKET, packet);

    auto setFrameRet = mpp_task_meta_set_frame(inputTask, KEY_INPUT_FRAME, frame);
    auto enqueueRet = mMppApi->enqueue(mMppCtx, MPP_PORT_INPUT, inputTask);
}

}

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dequeue： auto pollRet = mMppApi->poll(mMppCtx, MPP_PORT_OUTPUT, MPP_POLL_BLOCK); MppTask outputTask = nullptr; auto dequeueRet = mMppApi->dequeue(mMppCtx, MPP_PORT_OUTPUT, &outputTask); MppPacket packet = nullptr; auto packetRet = mpp_task_meta_get_packet(outputTask, KEY_OUTPUT_PACKET, &packet); auto length = mpp_packet_get_length(packet); auto data = static_cast<char *>(mpp_packet_get_data(packet)); fwrite(data, 1, length, file); mpp_packet_deinit(&packet); auto enqueueRet = mMppApi->enqueue(mMppCtx, MPP_PORT_OUTPUT, outputTask);