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- /*****************************************************************************
- * vlc_codec.h: Definition of the decoder and encoder structures
- *****************************************************************************
- * Copyright (C) 1999-2003 the VideoLAN team
- * $Id: b8347e34d2c870af54ab8244c14ac1574a3b9a77 $
- *
- * Authors: Gildas Bazin <gbazin@netcourrier.com>
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
-
- #ifndef VLC_CODEC_H
- #define VLC_CODEC_H 1
-
- #include <vlc_block.h>
- #include <vlc_es.h>
-
- /**
- * \file
- * This file defines the structure and types used by decoders and encoders
- */
-
- typedef struct decoder_owner_sys_t decoder_owner_sys_t;
-
- /**
- * \defgroup decoder Decoder
- *
- * The structure describing a decoder
- *
- * @{
- */
-
- /*
- * BIG FAT WARNING : the code relies in the first 4 members of filter_t
- * and decoder_t to be the same, so if you have anything to add, do it
- * at the end of the structure.
- */
- struct decoder_t
- {
- VLC_COMMON_MEMBERS
-
- /* Module properties */
- module_t * p_module;
- decoder_sys_t * p_sys;
-
- /* Input format ie from demuxer (XXX: a lot of field could be invalid) */
- es_format_t fmt_in;
-
- /* Output format of decoder/packetizer */
- es_format_t fmt_out;
-
- /* Some decoders only accept packetized data (ie. not truncated) */
- bool b_need_packetized;
-
- /* Tell the decoder if it is allowed to drop frames */
- bool b_pace_control;
-
- /* */
- picture_t * ( * pf_decode_video )( decoder_t *, block_t ** );
- aout_buffer_t * ( * pf_decode_audio )( decoder_t *, block_t ** );
- subpicture_t * ( * pf_decode_sub) ( decoder_t *, block_t ** );
- block_t * ( * pf_packetize ) ( decoder_t *, block_t ** );
-
- /* Closed Caption (CEA 608/708) extraction.
- * If set, it *may* be called after pf_decode_video/pf_packetize
- * returned data. It should return CC for the pictures returned by the
- * last pf_packetize/pf_decode_video call only,
- * pb_present will be used to known which cc channel are present (but
- * globaly, not necessary for the current packet */
- block_t * ( * pf_get_cc ) ( decoder_t *, bool pb_present[4] );
-
- /*
- * Buffers allocation
- */
-
- /* Audio output callbacks */
- aout_buffer_t * ( * pf_aout_buffer_new) ( decoder_t *, int );
- void ( * pf_aout_buffer_del) ( decoder_t *, aout_buffer_t * );
-
- /* Video output callbacks */
- picture_t * ( * pf_vout_buffer_new) ( decoder_t * );
- void ( * pf_vout_buffer_del) ( decoder_t *, picture_t * );
- void ( * pf_picture_link) ( decoder_t *, picture_t * );
- void ( * pf_picture_unlink) ( decoder_t *, picture_t * );
-
- /* SPU output callbacks */
- subpicture_t * ( * pf_spu_buffer_new) ( decoder_t * );
- void ( * pf_spu_buffer_del) ( decoder_t *, subpicture_t * );
-
- /* Private structure for the owner of the decoder */
- decoder_owner_sys_t *p_owner;
- };
-
- /**
- * @}
- */
-
- /**
- * \defgroup decoder Encoder
- *
- * The structure describing a Encoder
- *
- * @{
- */
-
- struct encoder_t
- {
- VLC_COMMON_MEMBERS
-
- /* Module properties */
- module_t * p_module;
- encoder_sys_t * p_sys;
-
- /* Properties of the input data fed to the encoder */
- es_format_t fmt_in;
-
- /* Properties of the output of the encoder */
- es_format_t fmt_out;
-
- block_t * ( * pf_encode_video )( encoder_t *, picture_t * );
- block_t * ( * pf_encode_audio )( encoder_t *, aout_buffer_t * );
- block_t * ( * pf_encode_sub )( encoder_t *, subpicture_t * );
-
- /* Common encoder options */
- int i_threads; /* Number of threads to use during encoding */
- int i_iframes; /* One I frame per i_iframes */
- int i_bframes; /* One B frame per i_bframes */
- int i_tolerance; /* Bitrate tolerance */
-
- /* Encoder config */
- config_chain_t *p_cfg;
- };
-
- /**
- * @}
- */
-
- VLC_EXPORT( input_attachment_t *, decoder_GetInputAttachment, ( decoder_t *, const char *psz_name ) );
- VLC_EXPORT( int, decoder_GetInputAttachments, ( decoder_t *p_dec, input_attachment_t ***ppp_attachment, int *pi_attachment ) );
- VLC_EXPORT( mtime_t, decoder_GetDisplayDate, ( decoder_t *, mtime_t ) );
-
- #endif /* _VLC_CODEC_H */
-