#include <stdio.h>
#include <stdlib.h>
#include "mvgal/mvgal.h"

/*
 * FFmpeg + MVGAL Distributed Transcoding Integration (PoC)
 *
 * Demonstrates how to distribute video pipeline stages across heterogeneous GPUs.
 * e.g., Decode on Intel QuickSync (iGPU), Filter on AMD (dGPU), Encode on NVIDIA NVENC.
 */

int setup_distributed_transcoding(void) {
    printf("[MVGAL] Setting up distributed transcoding pipeline\n");
    
    // 1. Enumerate GPUs and their hardware encode/decode capabilities
    int num_gpus = mvgal_get_gpu_count();
    printf("[MVGAL] Found %d GPUs for transcoding pool\n", num_gpus);
    
    // 2. Assign tasks based on capabilities
    printf("[MVGAL] Assigned decode stage to GPU 0 (e.g. Intel iGPU)\n");
    printf("[MVGAL] Assigned filter stage to GPU 1 (e.g. AMD dGPU)\n");
    printf("[MVGAL] Assigned encode stage to GPU 2 (e.g. NVIDIA dGPU)\n");
    
    // 3. Map memory between the GPUs using DMA-BUF for zero-copy transfers
    printf("[MVGAL] Establishing DMA-BUF memory sharing between GPUs\n");
    
    return 0;
}

int main(int argc, char** argv) {
    if (mvgal_init(NULL) != 0) {
        fprintf(stderr, "Failed to initialize MVGAL\n");
        return 1;
    }
    
    setup_distributed_transcoding();
    
    mvgal_shutdown();
    return 0;
}
