Function decavcodecvInit

libhb/decavcodec.c:1813–1958

static int decavcodecvInit( hb_work_object_t * w, hb_job_t * job )
{

    hb_work_private_t *pv = calloc( 1, sizeof( hb_work_private_t ) );

    w->private_data = pv;
    pv->job         = job;
    pv->next_pts    = (int64_t)AV_NOPTS_VALUE;
    pv->hw_pix_fmt  = AV_PIX_FMT_NONE;
    if ( job )
        pv->title = job->title;
    else
        pv->title = w->title;
    if (pv->title->flags & HBTF_RAW_VIDEO)
        pv->next_pts = 0;
    hb_buffer_list_clear(&pv->list);

    if( pv->job && pv->job->title && !pv->job->title->has_resolution_change )
    {
        pv->threads = HB_FFMPEG_THREADS_AUTO;
    }

    if (w->hw_device_ctx)
    {
        pv->codec = w->hw_accel->find_decoder(w->codec_param);
    }
    else
    {
        pv->codec = avcodec_find_decoder(w->codec_param);
    }
    if ( pv->codec == NULL )
    {
        hb_log( "decavcodecvInit: failed to find codec for id (%d)", w->codec_param );
        return 1;
    }

    hb_deep_log(2, "decavcodecvInit: using decoder %s", pv->codec->name);

    pv->context = avcodec_alloc_context3( pv->codec );
    pv->context->workaround_bugs = FF_BUG_AUTODETECT;
    pv->context->err_recognition = AV_EF_CRCCHECK;
    pv->context->error_concealment = FF_EC_GUESS_MVS|FF_EC_DEBLOCK;

    if (w->hw_device_ctx)
    {
        pv->context->get_format = hw_hwaccel_get_hw_format;
        pv->context->opaque = job;
        av_buffer_replace(&pv->context->hw_device_ctx, w->hw_device_ctx);

        if (job == NULL ||
            (job->hw_pix_fmt == AV_PIX_FMT_NONE && job->hw_decode & HB_DECODE_FORCE_HW))
        {
            pv->hw_frame = av_frame_alloc();
        }
    }

    if ( pv->title->opaque_priv )
    {