mirror of
https://code.videolan.org/videolan/vlc
synced 2024-10-03 01:31:53 +02:00
138 lines
4.2 KiB
C
138 lines
4.2 KiB
C
/*****************************************************************************
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* vlc_codec.h: codec related structures
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*****************************************************************************
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* Copyright (C) 1999-2003 the VideoLAN team
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* $Id$
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*
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* Authors: Gildas Bazin <gbazin@netcourrier.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef _VLC_CODEC_H
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#define _VLC_CODEC_H 1
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/**
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* \file
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* This file defines the structure and types used by decoders and encoders
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*/
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typedef struct decoder_owner_sys_t decoder_owner_sys_t;
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/**
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* \defgroup decoder Decoder
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*
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* The structure describing a decoder
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*
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* @{
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*/
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/*
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* BIG FAT WARNING : the code relies in the first 4 members of filter_t
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* and decoder_t to be the same, so if you have anything to add, do it
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* at the end of the structure.
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*/
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struct decoder_t
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{
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VLC_COMMON_MEMBERS
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/* Module properties */
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module_t * p_module;
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decoder_sys_t * p_sys;
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/* Input format ie from demuxer (XXX: a lot of field could be invalid) */
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es_format_t fmt_in;
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/* Output format of decoder/packetizer */
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es_format_t fmt_out;
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/* Some decoders only accept packetized data (ie. not truncated) */
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vlc_bool_t b_need_packetized;
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/* Tell the decoder if it is allowed to drop frames */
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vlc_bool_t b_pace_control;
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picture_t * ( * pf_decode_video )( decoder_t *, block_t ** );
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aout_buffer_t * ( * pf_decode_audio )( decoder_t *, block_t ** );
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subpicture_t * ( * pf_decode_sub) ( decoder_t *, block_t ** );
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block_t * ( * pf_packetize ) ( decoder_t *, block_t ** );
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/*
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* Buffers allocation
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*/
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/* Audio output callbacks */
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aout_buffer_t * ( * pf_aout_buffer_new) ( decoder_t *, int );
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void ( * pf_aout_buffer_del) ( decoder_t *, aout_buffer_t * );
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/* Video output callbacks */
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picture_t * ( * pf_vout_buffer_new) ( decoder_t * );
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void ( * pf_vout_buffer_del) ( decoder_t *, picture_t * );
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void ( * pf_picture_link) ( decoder_t *, picture_t * );
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void ( * pf_picture_unlink) ( decoder_t *, picture_t * );
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/* SPU output callbacks */
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subpicture_t * ( * pf_spu_buffer_new) ( decoder_t * );
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void ( * pf_spu_buffer_del) ( decoder_t *, subpicture_t * );
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/* Private structure for the owner of the decoder */
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decoder_owner_sys_t *p_owner;
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};
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/**
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* @}
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*/
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/**
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* \defgroup decoder Encoder
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*
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* The structure describing a Encoder
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*
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* @{
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*/
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struct encoder_t
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{
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VLC_COMMON_MEMBERS
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/* Module properties */
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module_t * p_module;
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encoder_sys_t * p_sys;
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/* Properties of the input data fed to the encoder */
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es_format_t fmt_in;
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/* Properties of the output of the encoder */
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es_format_t fmt_out;
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block_t * ( * pf_encode_video )( encoder_t *, picture_t * );
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block_t * ( * pf_encode_audio )( encoder_t *, aout_buffer_t * );
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block_t * ( * pf_encode_sub )( encoder_t *, subpicture_t * );
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/* Common encoder options */
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int i_threads; /* Number of threads to use during encoding */
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int i_iframes; /* One I frame per i_iframes */
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int i_bframes; /* One B frame per i_bframes */
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int i_tolerance; /* Bitrate tolerance */
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/* Encoder config */
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sout_cfg_t *p_cfg;
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};
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/**
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* @}
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*/
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#endif /* _VLC_CODEC_H */
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