/* * 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 * data structures common to libdirac and libschroedinger */ #ifndef AVCODEC_LIBDIRAC_LIBSCHRO_H #define AVCODEC_LIBDIRAC_LIBSCHRO_H #include "avcodec.h" typedef struct { uint16_t width; uint16_t height; uint16_t frame_rate_num; uint16_t frame_rate_denom; } DiracSchroVideoFormatInfo; /** * 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 DiracSchroEncodedFrame { /** 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; } DiracSchroEncodedFrame; /** * queue element */ typedef struct DiracSchroQueueElement { /** Data to be stored in queue*/ void *data; /** Pointer to next element queue */ struct DiracSchroQueueElement *next; } DiracSchroQueueElement; /** * A simple queue implementation used in libdirac and libschroedinger */ typedef struct DiracSchroQueue { /** Pointer to head of queue */ DiracSchroQueueElement *p_head; /** Pointer to tail of queue */ DiracSchroQueueElement *p_tail; /** Queue size*/ int size; } DiracSchroQueue; /** * Initialise the queue */ void ff_dirac_schro_queue_init(DiracSchroQueue *queue); /** * Add an element to the end of the queue */ int ff_dirac_schro_queue_push_back(DiracSchroQueue *queue, void *p_data); /** * Return the first element in the queue */ void *ff_dirac_schro_queue_pop(DiracSchroQueue *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(DiracSchroQueue *queue, void (*free_func)(void *)); #endif /* AVCODEC_LIBDIRAC_LIBSCHRO_H */