1 files changed, 168 insertions, 0 deletions

diff --git a/toxmsi/toxmedia.h b/toxmsi/toxmedia.h
new file mode 100644
index 00000000..7eea39ae
--- /dev/null
+++ b/toxmsi/toxmedia.h
@@ -0,0 +1,168 @@
+/* AV_codec.h
+ *
+ * Audio and video codec intitialisation, encoding/decoding and playback
+ *
+ *  Copyright (C) 2013 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 _AVCODEC_H_
+#define _AVCODEC_H_
+
+#include <stdio.h>
+#include <math.h>
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+#include <libswscale/swscale.h>
+#include <libavdevice/avdevice.h>
+#include <libavutil/opt.h>
+#include <pthread.h>
+#include <AL/al.h>
+#include <AL/alc.h>
+#include "toxrtp.h"
+#include "tox.h"
+
+#include <SDL/SDL.h>
+#include <opus/opus.h>
+
+/* ffmpeg VP8 codec ID */
+#define VIDEO_CODEC         AV_CODEC_ID_VP8
+
+/* ffmpeg Opus codec ID */
+#define AUDIO_CODEC         AV_CODEC_ID_OPUS
+
+/* default video bitrate in bytes/s */
+#define VIDEO_BITRATE   10*1000
+
+/* default audio bitrate in bytes/s */
+#define AUDIO_BITRATE   64000
+
+/* audio frame duration in miliseconds */
+#define AUDIO_FRAME_DURATION    20
+
+/* audio sample rate recommended to be 48kHz for Opus */
+#define AUDIO_SAMPLE_RATE   48000
+
+/* the amount of samples in one audio frame */
+#define AUDIO_FRAME_SIZE    AUDIO_SAMPLE_RATE*AUDIO_FRAME_DURATION/1000
+
+/* the quit event for SDL */
+#define FF_QUIT_EVENT (SDL_USEREVENT + 2)
+
+#ifdef __linux__
+#define VIDEO_DRIVER "video4linux2"
+#define DEFAULT_WEBCAM "/dev/video0"
+#endif
+
+#ifdef WIN32
+#define VIDEO_DRIVER "vfwcap"
+#define DEFAULT_WEBCAM "0"
+#endif
+
+extern SDL_Surface *screen;
+
+typedef struct {
+    SDL_Overlay *bmp;
+    int width, height;
+} VideoPicture;
+
+
+typedef struct {
+    uint8_t send_audio;
+    uint8_t receive_audio;
+    uint8_t send_video;
+    uint8_t receive_video;
+
+    uint8_t support_send_audio;
+    uint8_t support_send_video;
+    uint8_t support_receive_audio;
+    uint8_t support_receive_video;
+
+    /* video encoding */
+    AVInputFormat       *video_input_format;
+    AVFormatContext     *video_format_ctx;
+    uint8_t              video_stream;
+    AVCodecContext      *webcam_decoder_ctx;
+    AVCodec             *webcam_decoder;
+    AVCodecContext      *video_encoder_ctx;
+    AVCodec             *video_encoder;
+
+    /* video decoding */
+    AVCodecContext      *video_decoder_ctx;
+    AVCodec             *video_decoder;
+
+    /* audio encoding */
+    ALCdevice       *audio_capture_device;
+    OpusEncoder     *audio_encoder;
+    int         audio_bitrate;
+
+    /* audio decoding */
+    OpusDecoder     *audio_decoder;
+
+    uint8_t req_video_refresh;
+
+    /* context for converting image format to something SDL can use*/
+    struct SwsContext   *sws_SDL_r_ctx;
+
+    /* context for converting webcam image format to something the video encoder can use */
+    struct SwsContext   *sws_ctx;
+
+    /* rendered video picture, ready for display */
+    VideoPicture    video_picture;
+
+    rtp_session_t *_rtp_video;
+    rtp_session_t *_rtp_audio;
+    int socket;
+    Networking_Core *_networking;
+
+    pthread_t encode_audio_thread;
+    pthread_t encode_video_thread;
+
+    pthread_t decode_audio_thread;
+    pthread_t decode_video_thread;
+
+    pthread_mutex_t rtp_msg_mutex_lock;
+    pthread_mutex_t avcodec_mutex_lock;
+
+    uint8_t             quit;
+    SDL_Event           SDL_event;
+
+    msi_session_t *_msi;
+    uint32_t _frame_rate;
+    uint16_t _send_port, _recv_port;
+    int _tox_sock;
+    //pthread_id _medialoop_id;
+
+} codec_state;
+
+int display_received_frame(codec_state *cs, AVFrame *r_video_frame);
+int init_receive_audio(codec_state *cs);
+int init_decoder(codec_state *cs);
+int init_send_video(codec_state *cs);
+int init_send_audio(codec_state *cs);
+int init_encoder(codec_state *cs);
+int video_encoder_refresh(codec_state *cs, int bps);
+void *encode_video_thread(void *arg);
+void *encode_audio_thread(void *arg);
+int video_decoder_refresh(codec_state *cs, int width, int height);
+int handle_rtp_video_packet(codec_state *cs, rtp_msg_t *r_msg);
+void *decode_video_thread(void *arg);
+void *decode_audio_thread(void *arg);
+
+#endif