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/*
* Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file libdirac_libschro.h
* data structures common to libdirac and libschroedinger
*/
#ifndef FFMPEG_LIBDIRAC_LIBSCHRO_H
#define FFMPEG_LIBDIRAC_LIBSCHRO_H
#include "avcodec.h"
typedef struct
{
uint16_t width;
uint16_t height;
uint16_t frame_rate_num;
uint16_t frame_rate_denom;
} FfmpegDiracSchroVideoFormatInfo;
/**
* Returns the index into the Dirac Schro common video format info table
*/
unsigned int ff_dirac_schro_get_video_format_idx (AVCodecContext *avccontext);
/**
* contains a single encoded frame returned from Dirac or Schroedinger
*/
typedef struct FfmpegDiracSchroEncodedFrame
{
/** encoded frame data */
uint8_t *p_encbuf;
/** encoded frame size */
uint32_t size;
/** encoded frame number. Will be used as pts */
uint32_t frame_num;
/** key frame flag. 1 : is key frame , 0 : in not key frame */
uint16_t key_frame;
} FfmpegDiracSchroEncodedFrame;
/**
* queue element
*/
typedef struct FfmpegDiracSchroQueueElement
{
/** Data to be stored in queue*/
void *data;
/** Pointer to next element queue */
struct FfmpegDiracSchroQueueElement *next;
} FfmpegDiracSchroQueueElement;
/**
* A simple queue implementation used in libdirac and libschroedinger
*/
typedef struct FfmpegDiracSchroQueue
{
/** Pointer to head of queue */
FfmpegDiracSchroQueueElement *p_head;
/** Pointer to tail of queue */
FfmpegDiracSchroQueueElement *p_tail;
} FfmpegDiracSchroQueue;
/**
* Initialise the queue
*/
void ff_dirac_schro_queue_init(FfmpegDiracSchroQueue *queue);
/**
* Add an element to the end of the queue
*/
int ff_dirac_schro_queue_push_back (FfmpegDiracSchroQueue *queue, void *p_data);
/**
* Return the first element in the queue
*/
void *ff_dirac_schro_queue_pop (FfmpegDiracSchroQueue *queue);
/**
* Free the queue resources. free_func is a function supplied by the caller to
* free any resources allocated by the caller. The data field of the queue
* element is passed to it.
*/
void ff_dirac_schro_queue_free(FfmpegDiracSchroQueue *queue,
void (*free_func)(void *));
#endif /* FFMPEG_LIBDIRAC_LIBSCHRO_H */
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