/*
 * linuxdvb output/writer handling.
 *
 * konfetti 2010 based on linuxdvb.c code from libeplayer2
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

/* ***************************** */
/* Includes                      */
/* ***************************** */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/uio.h>
#include <linux/dvb/video.h>
#include <linux/dvb/audio.h>
#include <memory.h>
#include <asm/types.h>
#include <pthread.h>
#include <errno.h>

#include "stm_ioctls.h"
#include "bcm_ioctls.h"

#include "common.h"
#include "output.h"
#include "debug.h"
#include "misc.h"
#include "pes.h"
#include "writer.h"

/* ***************************** */
/* Makros/Constants              */
/* ***************************** */

/* ***************************** */
/* Types                         */
/* ***************************** */

/* ***************************** */
/* Variables                     */
/* ***************************** */

static int initialHeader = 1;
static uint8_t *PesHeader = NULL;
static uint32_t MaxPesHeader = 0;

/* ***************************** */
/* Prototypes                    */
/* ***************************** */

/* ***************************** */
/* MISC Functions                */
/* ***************************** */

static int reset()
{
	initialHeader = 1;
	return 0;
}

static int writeData(WriterAVCallData_t *call)
{
	//int len = 0;

	wma_printf(10, "\n");

	if (call == NULL)
	{
		wma_err("call data is NULL...\n");
		return 0;
	}

	wma_printf(10, "AudioPts %lld\n", call->Pts);

	if ((call->data == NULL) || (call->len <= 0))
	{
		wma_err("parsing NULL Data. ignoring...\n");
		return 0;
	}

	if (call->fd < 0)
	{
		wma_err("file pointer < 0. ignoring ...\n");
		return 0;
	}

	uint32_t packetLength = 4 + call->private_size + call->len;

	if (STB_DREAMBOX == GetSTBType())
	{
		packetLength += 4;
	}

	if ((packetLength + PES_MAX_HEADER_SIZE)  > MaxPesHeader)
	{
		if (PesHeader)
		{
			free(PesHeader);
		}
		MaxPesHeader = packetLength + PES_MAX_HEADER_SIZE;
		PesHeader = malloc(MaxPesHeader);
	}

	uint32_t headerSize = InsertPesHeader(PesHeader, packetLength, MPEG_AUDIO_PES_START_CODE, call->Pts, 0);
	if (STB_DREAMBOX == GetSTBType())
	{
		PesHeader[headerSize++] = 0x42; // B
		PesHeader[headerSize++] = 0x43; // C
		PesHeader[headerSize++] = 0x4D; // M
		PesHeader[headerSize++] = 0x41; // A
	}

	size_t payload_len = call->len;
	PesHeader[headerSize++] = (payload_len >> 24) & 0xff;
	PesHeader[headerSize++] = (payload_len >> 16) & 0xff;
	PesHeader[headerSize++] = (payload_len >> 8)  & 0xff;
	PesHeader[headerSize++] = payload_len & 0xff;

	memcpy(PesHeader + headerSize, call->private_data, call->private_size);
	headerSize += call->private_size;

	PesHeader[6] |= 1;

	struct iovec iov[2];
	iov[0].iov_base = PesHeader;
	iov[0].iov_len  = headerSize;
	iov[1].iov_base = call->data;
	iov[1].iov_len  = call->len;

	return call->WriteV(call->fd, iov, 2);
}

/* ***************************** */
/* Writer Definition             */
/* ***************************** */

static WriterCaps_t capsWMAPRO =
{
	"wma/pro",
	eAudio,
	"A_WMA/PRO",
	AUDIO_ENCODING_WMA,
	AUDIOTYPE_WMA_PRO,
	-1
};

struct Writer_s WriterAudioWMAPRO =
{
	&reset,
	&writeData,
	&capsWMAPRO
};

static WriterCaps_t capsWMA =
{
	"wma",
	eAudio,
	"A_WMA",
	AUDIO_ENCODING_WMA,
	AUDIOTYPE_WMA,
	-1
};

struct Writer_s WriterAudioWMA =
{
	&reset,
	&writeData,
	&capsWMA
};