/usr/include/mediastreamer2/mscodecutils.h is in libmediastreamer-dev 3.6.1-3build1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 | /*
mediastreamer2 library - modular sound and video processing and streaming
Copyright (C) 2012 Belledonne Communications, Grenoble, France
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef mscodecutils_h
#define mscodecutils_h
#include "mediastreamer2/mscommon.h"
/**
* Helper object for audio decoders to determine whether PLC (packet loss concealment is needed).
**/
typedef struct _MSConcealerContext MSConcealerContext;
/**
* Creates a new concealer object.
* @param max_plc_count the number of consecutive milliseconds of PLC allowed.
**/
MS2_PUBLIC MSConcealerContext* ms_concealer_context_new(unsigned int max_plc_count);
/**
* Destroys a concealer object.
**/
MS2_PUBLIC void ms_concealer_context_destroy(MSConcealerContext* context);
/**
* Returns 1 when PLC is needed, 0 otherwise.
* @param obj the concealer object
* @param current_time the current time in milliseconds, as pointed by f->ticker->time .
**/
MS2_PUBLIC unsigned int ms_concealer_context_is_concealement_required(MSConcealerContext* obj,uint64_t current_time);
/**
* Call this function whenever you decoded a packet, for true or in PLC mode, to inform the concealer
* of how the audio stream is going.
* @param obj the concealer object
* @param current_time the current time in milliseconds, as pointed by f->ticker->time.
* @param time_increment the number of milliseconds of audio decoded.
* @param got_packet set to 1 if a real frame was decoded, 0 if it was a PLC frame.
* @returns if a PLC period terminates, returns the duration of this PLC period in milliseconds, 0 otherwise.
**/
MS2_PUBLIC int ms_concealer_inc_sample_time(MSConcealerContext* obj, uint64_t current_time, int time_increment, int got_packet);
MS2_PUBLIC unsigned long ms_concealer_context_get_total_number_of_plc(MSConcealerContext* obj);
/**
* Helper object for audio decoders to determine whether PLC (packet loss concealment is needed), based on timestamp information.
**/
typedef struct _MSConcealerTsContext MSConcealerTsContext;
/**
* Creates a new concealer object.
* @param max_plc_count maximum duration of PLC allowed, expressed in timestamp units.
**/
MS2_PUBLIC MSConcealerTsContext* ms_concealer_ts_context_new(unsigned int max_plc_ts);
/**
* Destroys a concealer object.
**/
MS2_PUBLIC void ms_concealer_ts_context_destroy(MSConcealerTsContext* context);
/**
* Returns 1 when PLC is needed, 0 otherwise.
* @param obj the concealer object
* @param current_ts the current time converted in timestamp units, usually (f->ticker->time*clock_rate)/1000 .
**/
MS2_PUBLIC unsigned int ms_concealer_ts_context_is_concealement_required(MSConcealerTsContext* obj,uint64_t current_ts);
/**
* Call this function whenever you decoded a packet, for true or in PLC mode, to inform the concealer
* of how the audio stream is going.
* @param obj the concealer object
* @param current_ts the current time converted in timestamp units, usually (f->ticker->time*clock_rate)/1000
* @param ts_increment the duration of audio decoded expressed in timestamp units
* @param got_packet set to 1 if a real frame was decoded, 0 if it was a PLC frame.
* @returns if a PLC period terminates, returns the duration of this PLC period in timestamp units, 0 otherwise.
**/
MS2_PUBLIC int ms_concealer_ts_context_inc_sample_ts(MSConcealerTsContext* obj, uint64_t current_ts, int ts_increment, int got_packet);
MS2_PUBLIC unsigned long ms_concealer_ts_context_get_total_number_of_plc(MSConcealerTsContext* obj);
/*FEC API*/
typedef struct _MSRtpPayloadPickerContext MSRtpPayloadPickerContext;
typedef mblk_t* (*RtpPayloadPicker)(MSRtpPayloadPickerContext* context,unsigned int sequence_number);
struct _MSRtpPayloadPickerContext {
void* filter_graph_manager; /*I.E stream*/
RtpPayloadPicker picker;
};
#endif
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