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/** video.h
*
* Copyright (C) 2013-2015 Tox project All Rights Reserved.
*
* This file is part of Tox.
*
* Tox 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 3 of the License, or
* (at your option) any later version.
*
* Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef VIDEO_H
#define VIDEO_H
#include <vpx/vpx_decoder.h>
#include <vpx/vpx_encoder.h>
#include <vpx/vp8dx.h>
#include <vpx/vp8cx.h>
#include <vpx/vpx_image.h>
#define VIDEO_CODEC_DECODER_INTERFACE (vpx_codec_vp8_dx())
#define VIDEO_CODEC_ENCODER_INTERFACE (vpx_codec_vp8_cx())
#include <pthread.h>
#include "toxav.h"
#include "../toxcore/util.h"
struct RTPMessage_s;
/*
* Base Video Codec session type.
*/
typedef struct VCSession_s {
/* encoding */
vpx_codec_ctx_t encoder[1];
vpx_codec_ctx_t test_encoder[1];
uint32_t frame_counter;
uint32_t test_frame_counter;
/* decoding */
vpx_codec_ctx_t decoder[1];
void *vbuf_raw; /* Un-decoded data */
/* Data handling */
uint8_t *frame_buf; /* buffer for split video payloads */
uint32_t frame_size; /* largest address written to in frame_buf for current input frame */
uint8_t frameid_in, frameid_out; /* id of input and output video frame */
uint64_t linfts; /* Last received frame time stamp */
uint32_t lcfd; /* Last calculated frame duration for incoming video payload */
/* Limits */
uint32_t peer_video_frame_piece_size;
/* Splitting */
uint8_t *split_video_frame;
const uint8_t *processing_video_frame;
uint16_t processing_video_frame_size;
ToxAV *av;
uint32_t friend_number;
PAIR(toxav_video_receive_frame_cb *, void *) vcb; /* Video frame receive callback */
pthread_mutex_t queue_mutex[1];
} VCSession;
/*
* Create new Video Codec session.
*/
VCSession* vc_new(ToxAV* av, uint32_t friend_number, toxav_video_receive_frame_cb *cb, void *cb_data, uint32_t mvfpsz);
/*
* Kill the Video Codec session.
*/
void vc_kill(VCSession* vc);
/*
* Do periodic work. Work is consisted out of decoding only.
*/
void vc_do(VCSession* vc);
/*
* Set new video splitting cycle. This is requirement in order to send video packets.
*/
void vc_init_video_splitter_cycle(VCSession* vc);
/*
* Update the video splitter cycle with new data.
*/
int vc_update_video_splitter_cycle(VCSession* vc, const uint8_t* payload, uint16_t length);
/*
* Iterate over splitted cycle.
*/
const uint8_t *vc_iterate_split_video_frame(VCSession* vc, uint16_t *size);
/*
* Queue new rtp message.
*/
int vc_queue_message(void *vcp, struct RTPMessage_s *msg);
/*
* Set new values to the encoders.
*/
int vc_reconfigure_encoder(vpx_codec_ctx_t* vccdc, uint32_t bit_rate, uint16_t width, uint16_t height);
#endif /* VIDEO_H */
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