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#include <stdlib.h>
#include <stdio.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include "pdp.h"

typedef struct pdp_in_struct {
    t_object x_obj;
    t_outlet *x_outlet0;
    int x_packet0, x_queue_id;
    u32 x_width, x_height;
} t_pdp_in;

static void pdp_in_sendpacket(t_pdp_in *x)
{
    /* unregister and propagate if valid dest packet */
    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0);
}

static void pdp_in_process(t_pdp_in *x)
{

}

int pdp_in_open(t_pdp_in *x, t_symbol *s)
{
    const char *filename = s->s_name;
    AVFormatContext *pFormatCtx;

    av_register_all();

    // Open video file
    if(av_open_input_file(&pFormatCtx, filename, NULL, 0, NULL)!=0)
    {
        post("Can't open file");
        return -1; // Couldn't open file
    }

    // Retrieve stream information
    if(av_find_stream_info(pFormatCtx)<0)
        return -1; // Couldn't find stream information

    // Dump information about file onto standard error
    dump_format(pFormatCtx, 0, filename, 0);
    return 0;
}

t_class *pdp_in_class;

void pdp_in_free(t_pdp_in *x)
{
    t_pdp_procqueue *q = pdp_queue_get_queue();
    pdp_procqueue_finish(q, x->x_queue_id);
    pdp_packet_mark_unused(x->x_packet0);
}

void *pdp_in_new(void)
{
    t_pdp_in *x = (t_pdp_in *)pd_new(pdp_in_class);

    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);

    x->x_packet0 = -1;
    x->x_queue_id = -1;
    x->x_width = -1;
    x->x_height = -1;

    return (void *)x;
}

#ifdef __cplusplus
extern "C"
{
#endif

void pdp_in_setup(void)
{
    pdp_in_class = class_new(gensym("pdp_in"), (t_newmethod)pdp_in_new,
        (t_method)pdp_in_free, sizeof(t_pdp_in), 0, A_DEFFLOAT, A_DEFFLOAT, A_NULL);

    class_addmethod(pdp_in_class, (t_method)pdp_in_open, gensym("open"), A_SYMBOL, A_NULL);
}

#ifdef __cplusplus
}
#endif