/*****************************************************************************
* vlc_codec.h: Definition of the decoder and encoder structures
*****************************************************************************
- * Copyright (C) 1999-2003 the VideoLAN team
+ * Copyright (C) 1999-2003 VLC authors and VideoLAN
* $Id$
*
* 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
+ * This program 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.
*
* 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.
+ * 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 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.
+ * You should have received a copy of the GNU Lesser 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
#include <vlc_block.h>
#include <vlc_es.h>
+#include <vlc_picture.h>
+#include <vlc_subpicture.h>
/**
* \file
es_format_t fmt_out;
/* Some decoders only accept packetized data (ie. not truncated) */
- bool b_need_packetized;
+ bool b_need_packetized;
/* Tell the decoder if it is allowed to drop frames */
- bool b_pace_control;
+ bool b_pace_control;
/* */
picture_t * ( * pf_decode_video )( decoder_t *, block_t ** );
- aout_buffer_t * ( * pf_decode_audio )( decoder_t *, block_t ** );
+ block_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 ** );
* globaly, not necessary for the current packet */
block_t * ( * pf_get_cc ) ( decoder_t *, bool pb_present[4] );
- /*
- * Buffers allocation
+ /* Meta data at codec level
+ * The decoder owner set it back to NULL once it has retreived what it needs.
+ * The decoder owner is responsible of its release except when you overwrite it.
*/
-
- /* 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 * );
+ vlc_meta_t *p_description;
/*
* Owner fields
+ * XXX You MUST not use them directly.
*/
+ /* Video output callbacks
+ * XXX use decoder_NewPicture/decoder_DeletePicture
+ * and decoder_LinkPicture/decoder_UnlinkPicture */
+ 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 * );
+
+ /**
+ * Number of extra (ie in addition to the DPB) picture buffers
+ * needed for decoding.
+ */
+ int i_extra_picture_buffers;
+
+ /* Audio output callbacks */
+ int (*pf_aout_format_update)( decoder_t * );
+
/* SPU output callbacks
* XXX use decoder_NewSubpicture and decoder_DeleteSubpicture */
- subpicture_t *(*pf_spu_buffer_new) ( decoder_t * );
- void (*pf_spu_buffer_del) ( decoder_t *, subpicture_t * );
+ subpicture_t *(*pf_spu_buffer_new)( decoder_t *, const subpicture_updater_t * );
+ void (*pf_spu_buffer_del)( decoder_t *, subpicture_t * );
/* Input attachments
* XXX use decoder_GetInputAttachments */
/* Private structure for the owner of the decoder */
decoder_owner_sys_t *p_owner;
+
+ bool b_error;
};
/**
*/
/**
- * \defgroup decoder Encoder
+ * \defgroup encoder Encoder
*
* The structure describing a 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_audio )( encoder_t *, block_t * );
block_t * ( * pf_encode_sub )( encoder_t *, subpicture_t * );
/* Common encoder options */
* @}
*/
+
+/**
+ * This function will return a new picture usable by a decoder as an output
+ * buffer. You have to release it using decoder_DeletePicture or by returning
+ * it to the caller as a pf_decode_video return value.
+ */
+VLC_API picture_t * decoder_NewPicture( decoder_t * ) VLC_USED;
+
+/**
+ * This function will release a picture create by decoder_NewPicture.
+ */
+VLC_API void decoder_DeletePicture( decoder_t *, picture_t *p_picture );
+
+/**
+ * This function will increase the picture reference count.
+ * (picture_Hold is not usable.)
+ */
+VLC_API void decoder_LinkPicture( decoder_t *, picture_t * );
+
+/**
+ * This function will decrease the picture reference count.
+ * (picture_Release is not usable.)
+ */
+VLC_API void decoder_UnlinkPicture( decoder_t *, picture_t * );
+
+/**
+ * This function notifies the audio output pipeline of a new audio output
+ * format (fmt_out.audio). If there is currently no audio output or if the
+ * audio output format has changed, a new audio output will be set up.
+ * @return 0 if the audio output is working, -1 if not. */
+static inline int decoder_UpdateAudioFormat( decoder_t *dec )
+{
+ if( dec->pf_aout_format_update != NULL )
+ return dec->pf_aout_format_update( dec );
+ else
+ return -1;
+}
+
+/**
+ * This function will return a new audio buffer usable by a decoder as an
+ * output buffer. You have to release it using decoder_DeleteAudioBuffer
+ * or by returning it to the caller as a pf_decode_audio return value.
+ */
+VLC_API block_t * decoder_NewAudioBuffer( decoder_t *, int i_size ) VLC_USED;
+
/**
* This function will return a new subpicture usable by a decoder as an output
* buffer. You have to release it using decoder_DeleteSubpicture or by returning
* it to the caller as a pf_decode_sub return value.
*/
-VLC_EXPORT( subpicture_t *, decoder_NewSubpicture, ( decoder_t * ) );
+VLC_API subpicture_t * decoder_NewSubpicture( decoder_t *, const subpicture_updater_t * ) VLC_USED;
/**
- * This function will release a subpicture create by decoder_NewSubicture.
+ * This function will release a subpicture created by decoder_NewSubicture.
*/
-VLC_EXPORT( void, decoder_DeleteSubpicture, ( decoder_t *, subpicture_t *p_subpicture ) );
+VLC_API void decoder_DeleteSubpicture( decoder_t *, subpicture_t *p_subpicture );
/**
* This function gives all input attachments at once.
*
* You MUST release the returned values
*/
-VLC_EXPORT( int, decoder_GetInputAttachments, ( decoder_t *, input_attachment_t ***ppp_attachment, int *pi_attachment ) );
+VLC_API int decoder_GetInputAttachments( decoder_t *, input_attachment_t ***ppp_attachment, int *pi_attachment );
/**
* This function converts a decoder timestamp into a display date comparable
* to mdate().
* You MUST use it *only* for gathering statistics about speed.
*/
-VLC_EXPORT( mtime_t, decoder_GetDisplayDate, ( decoder_t *, mtime_t ) LIBVLC_USED );
+VLC_API mtime_t decoder_GetDisplayDate( decoder_t *, mtime_t ) VLC_USED;
/**
* This function returns the current input rate.
* You MUST use it *only* for gathering statistics about speed.
*/
-VLC_EXPORT( int, decoder_GetDisplayRate, ( decoder_t * ) );
+VLC_API int decoder_GetDisplayRate( decoder_t * ) VLC_USED;
#endif /* _VLC_CODEC_H */