/*****************************************************************************
* decoder.h: Input decoder functions
*****************************************************************************
* Copyright (C) 1998-2008 VLC authors and VideoLAN
* Copyright (C) 2008 Laurent Aimar
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* 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 Lesser General Public License for more details.
*
* 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 LIBVLC_INPUT_DECODER_H
#define LIBVLC_INPUT_DECODER_H 1
#include <vlc_common.h>
#include <vlc_decoder.h>
#include <vlc_codec.h>
#include <vlc_mouse.h>
#include "input_internal.h"
struct vlc_clock_t;
struct vlc_input_decoder_callbacks {
/* notifications */
void (*on_vout_started)(vlc_input_decoder_t *decoder, vout_thread_t *vout,
enum vlc_vout_order vout_order,
void *userdata);
void (*on_vout_stopped)(vlc_input_decoder_t *decoder, vout_thread_t *vout,
void *userdata);
void (*on_output_paused)(vlc_input_decoder_t *decoder, bool paused,
vlc_tick_t pause_date,
void *userdata);
void (*on_thumbnail_ready)(vlc_input_decoder_t *decoder, picture_t *pic,
void *userdata);
void (*on_new_video_stats)(vlc_input_decoder_t *decoder, unsigned decoded,
unsigned lost, unsigned displayed, unsigned late,
void *userdata);
void (*on_new_audio_stats)(vlc_input_decoder_t *decoder, unsigned decoded,
unsigned lost, unsigned played, void *userdata);
void (*frame_next_status)(vlc_input_decoder_t *decoder, int status,
void *userdata);
void (*frame_next_need_data)(vlc_input_decoder_t *decoder, bool need_data,
void *userdata);
void (*frame_previous_status)(vlc_input_decoder_t *decoder, int status,
void *userdata);
void (*frame_previous_seek)(vlc_input_decoder_t *decoder, vlc_tick_t pts,
unsigned frame_rate, unsigned frame_rate_base,
int steps, bool failed, void *userdata);
/* requests */
int (*get_attachments)(vlc_input_decoder_t *decoder,
input_attachment_t ***ppp_attachment,
void *userdata);
};
struct vlc_input_decoder_cfg
{
const es_format_t *fmt;
const char *str_id;
struct vlc_clock_t *clock;
input_resource_t *resource;
sout_stream_t *sout;
enum input_type input_type;
bool hw_dec;
unsigned cc_decoder;
const struct vlc_input_decoder_callbacks *cbs;
void *cbs_data;
};
vlc_input_decoder_t *
vlc_input_decoder_New( vlc_object_t *parent,
const struct vlc_input_decoder_cfg *cfg );
/**
* This function changes the pause state.
* The date parameter MUST hold the exact date at which the change has been
* done for proper vout/aout pausing.
*/
void vlc_input_decoder_ChangePause( vlc_input_decoder_t *, bool b_paused, vlc_tick_t i_date );
/**
* Changes the decoder rate.
*
* This function changes rate of the intended playback speed to nominal speed.
* \param dec decoder
* \param rate playback rate (default is 1)
*/
void vlc_input_decoder_ChangeRate( vlc_input_decoder_t *dec, float rate );
/**
* This function makes the decoder start waiting for a valid data block from its fifo.
*/
void vlc_input_decoder_StartWait( vlc_input_decoder_t * );
/**
* This function waits for the decoder to actually receive data.
*/
void vlc_input_decoder_Wait( vlc_input_decoder_t * );
/**
* This function exits the waiting mode of the decoder.
*/
void vlc_input_decoder_StopWait( vlc_input_decoder_t * );
/**
* This function returns true if the decoder fifo is empty and false otherwise.
*/
bool vlc_input_decoder_IsEmpty( vlc_input_decoder_t * );
/**
* This function forces the display of the next picture
*/
void vlc_input_decoder_FrameNext( vlc_input_decoder_t *p_dec );
/**
* This function forces the display of the previous picture
*/
void vlc_input_decoder_FramePrevious( vlc_input_decoder_t *p_dec );
/*
* This function reset the decoder for normal playback after a previous or a
* next frame call.
*/
void vlc_input_decoder_StopFrameNext( vlc_input_decoder_t *p_dec );
/**
* This function Creates and adds the requested SubDec.
*
* The sub decoder returned by this function must be deleted with
* vlc_input_decoder_Delete() before the parent is deleted.
*/
vlc_input_decoder_t *
vlc_input_decoder_CreateSubDec(vlc_input_decoder_t *dec,
const struct vlc_input_decoder_cfg *cfg);
struct vlc_subdec_desc
{
es_format_t *fmt_array;
size_t fmt_count;
};
void vlc_subdec_desc_Clean(struct vlc_subdec_desc *desc);
struct vlc_input_decoder_status
{
struct {
/* True if the ES format or meta data have changed since the last call.
* */
bool changed;
/* If changed is true, a copy of the current es_format_t, MUST be freed
* with es_format_Clean() */
es_format_t fmt;
/* If changed is true, a copy of the current description, can be NULL,
* MUST be freed with vlc_meta_Delete.() */
vlc_meta_t *meta;
} format;
struct vlc_subdec_desc subdec_desc;
};
/**
* Get the last status of the decoder.
*/
void vlc_input_decoder_DecodeWithStatus(vlc_input_decoder_t *p_dec,
vlc_frame_t *frame, bool do_pace,
struct vlc_input_decoder_status *status);
/**
* This function returns the current size in bytes of the decoder fifo
*/
size_t vlc_input_decoder_GetFifoSize( vlc_input_decoder_t *p_dec );
int vlc_input_decoder_GetVbiPage( vlc_input_decoder_t *, bool *opaque );
int vlc_input_decoder_SetVbiPage( vlc_input_decoder_t *, unsigned page );
int vlc_input_decoder_SetVbiOpaque( vlc_input_decoder_t *, bool opaque );
void vlc_input_decoder_SetVoutMouseEvent( vlc_input_decoder_t *, vlc_mouse_event, void * );
int vlc_input_decoder_AddVoutOverlay( vlc_input_decoder_t *, subpicture_t *, size_t * );
int vlc_input_decoder_DelVoutOverlay( vlc_input_decoder_t *, size_t );
#endif
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