calls.py rewriting
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ingvar1995
parent
464fba23c5
commit
6d705deb55
172
toxygen/calls.py
172
toxygen/calls.py
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@ -7,15 +7,47 @@ import cv2
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import itertools
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import numpy as np
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# TODO: play sound until outgoing call will be started or cancelled and add timeout
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# TODO: rewrite logic
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class Call:
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def __init__(self, audio=False, video=False):
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self.audio = audio
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self.video = video
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# TODO: add widget for call
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def __init__(self, out_audio, out_video, in_audio=False, in_video=False):
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self._in_audio = in_audio
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self._in_video = in_video
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self._out_audio = out_audio
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self._out_video = out_video
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def get_in_audio(self):
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return self._in_audio
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def set_in_audio(self, value):
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self._in_audio = value
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in_audio = property(get_in_audio, set_in_audio)
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def get_out_audio(self):
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return self._out_audio
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def set_out_audio(self, value):
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self._out_audio = value
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out_audio = property(get_out_audio, set_out_audio)
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def get_in_video(self):
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return self._in_video
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def set_in_video(self, value):
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self._in_video = value
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in_video = property(get_in_video, set_in_video)
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def get_out_video(self):
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return self._out_video
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def set_out_video(self, value):
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self._in_video = value
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out_video = property(get_out_video, set_out_video)
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class AV:
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@ -41,6 +73,9 @@ class AV:
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self._video_thread = None
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self._video_running = False
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self._video_width = 640
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self._video_height = 480
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def stop(self):
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self._running = False
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self.stop_audio_thread()
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@ -57,15 +92,15 @@ class AV:
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"""Call friend with specified number"""
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self._toxav.call(friend_number, 32 if audio else 0, 5000 if video else 0)
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self._calls[friend_number] = Call(audio, video)
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self.start_audio_thread()
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self.start_video_thread()
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def accept_call(self, friend_number, audio_enabled, video_enabled):
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if self._running:
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self._calls[friend_number] = Call(audio_enabled, video_enabled)
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self._toxav.answer(friend_number, 32 if audio_enabled else 0, 5000 if video_enabled else 0)
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self.start_audio_thread()
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if audio_enabled:
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self.start_audio_thread()
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if video_enabled:
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self.start_video_thread()
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def finish_call(self, friend_number, by_friend=False):
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@ -73,20 +108,25 @@ class AV:
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self._toxav.call_control(friend_number, TOXAV_CALL_CONTROL['CANCEL'])
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if friend_number in self._calls:
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del self._calls[friend_number]
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if not len(self._calls):
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if not len(list(filter(lambda c: c.out_audio, self._calls))):
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self.stop_audio_thread()
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if not len(list(filter(lambda c: c.out_video, self._calls))):
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self.stop_video_thread()
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def toxav_call_state_cb(self, friend_number, state):
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"""
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New call state
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"""
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pass # TODO: ignore?
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# if self._running:
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#
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# if state & TOXAV_FRIEND_CALL_STATE['ACCEPTING_A']:
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# self._calls[friend_number].audio = True
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# if state & TOXAV_FRIEND_CALL_STATE['ACCEPTING_V']:
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# self._calls[friend_number].video = True
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call = self._calls[friend_number]
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call.in_audio = state | TOXAV_FRIEND_CALL_STATE['SENDING_A']
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call.in_video = state | TOXAV_FRIEND_CALL_STATE['SENDING_V']
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if state | TOXAV_FRIEND_CALL_STATE['ACCEPTING_A'] and call.out_audio:
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self.start_audio_thread()
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if state | TOXAV_FRIEND_CALL_STATE['ACCEPTING_V'] and call.out_video:
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self.start_video_thread()
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# -----------------------------------------------------------------------------------------------------------------
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# Threads
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@ -136,10 +176,13 @@ class AV:
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self._video_running = True
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self._video_width = 640 # TODO: use settings
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self._video_height = 480
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self._video = cv2.VideoCapture(0)
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self._video.set(cv2.CAP_PROP_FPS, 25)
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self._video.set(cv2.CAP_PROP_FRAME_WIDTH, 640)
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self._video.set(cv2.CAP_PROP_FRAME_HEIGHT, 480)
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self._video.set(cv2.CAP_PROP_FRAME_WIDTH, self._video_width)
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self._video.set(cv2.CAP_PROP_FRAME_HEIGHT, self._video_height)
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self._video_thread = threading.Thread(target=self.send_video)
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self._video_thread.start()
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@ -170,9 +213,6 @@ class AV:
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output=True)
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self._out_stream.write(samples)
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def video_chunk(self):
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pass
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# -----------------------------------------------------------------------------------------------------------------
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# AV sending
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# -----------------------------------------------------------------------------------------------------------------
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@ -187,7 +227,7 @@ class AV:
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pcm = self._audio_stream.read(self._audio_sample_count)
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if pcm:
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for friend_num in self._calls:
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if self._calls[friend_num].audio:
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if self._calls[friend_num].out_audio:
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try:
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self._toxav.audio_send_frame(friend_num, pcm, self._audio_sample_count,
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self._audio_channels, self._audio_rate)
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@ -199,15 +239,18 @@ class AV:
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time.sleep(0.01)
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def send_video(self):
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"""
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This method sends video to friends
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"""
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while self._video_running:
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try:
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result, frame = self._video.read()
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if result:
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height, width, channels = frame.shape
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for friend_num in self._calls:
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if self._calls[friend_num].video:
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if self._calls[friend_num].out_video:
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try:
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y, u, v = convert_bgr_to_yuv(frame)
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y, u, v = self.convert_bgr_to_yuv(frame)
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self._toxav.video_send_frame(friend_num, width, height, y, u, v)
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except Exception as e:
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print(e)
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@ -216,51 +259,50 @@ class AV:
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time.sleep(0.01)
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def convert_bgr_to_yuv(self, frame):
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"""
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:param frame: input bgr frame
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:return y, u, v: y, u, v values of frame
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def convert_bgr_to_yuv(frame): # TODO: remove hardcoded values
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"""
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:param frame: input bgr frame
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:return y, u, v: y, u, v values of frame
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How this function works:
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OpenCV creates YUV420 frame from BGR
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This frame has following structure and size:
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width, height - dim of input frame
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width, height * 1.5 - dim of output frame
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How this function works:
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OpenCV creates YUV420 frame from BGR
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This frame has following structure and size:
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width, height - dim of input frame
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width, height * 1.5 - dim of output frame
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width
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-------------------------
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| |
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| Y | height
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| |
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-------------------------
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| | |
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| U even | U odd | height // 4
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| | |
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-------------------------
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| | |
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| V even | V odd | height // 4
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-------------------------
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width
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-------------------------
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| Y | height
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| |
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-------------------------
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| | |
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| U even | U odd | height // 4
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-------------------------
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| V even | V odd | height // 4
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-------------------------
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width // 2 width // 2
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width // 2 width // 2
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Y, U, V can be extracted using slices and joined in one list using itertools.chain.from_iterable()
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Function returns bytes(y), bytes(u), bytes(v), because it is required for ctypes
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"""
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frame = cv2.cvtColor(frame, cv2.COLOR_BGR2YUV_I420)
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Y, U, V can be extracted using slices and joined in one list using itertools.chain.from_iterable()
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Function returns bytes(y), bytes(u), bytes(v), because it is required for ctypes
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"""
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frame = cv2.cvtColor(frame, cv2.COLOR_BGR2YUV_I420)
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y = frame[:self._video_height, :].tolist()
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y = list(itertools.chain.from_iterable(y))
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y = frame[:480, :].tolist()
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y = list(itertools.chain.from_iterable(y))
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u = np.zeros((self._video_width // 2, self._video_height // 2), dtype=np.int)
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u[::2, :] = frame[self._video_height:self._video_height * 5 // 4, :self._video_height // 2]
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u[1::2, :] = frame[self._video_height:self._video_height * 5 // 4, self._video_height // 2:]
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u = list(itertools.chain.from_iterable(u))
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u = np.zeros((240, 320), dtype=np.int)
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u[::2, :] = frame[480:600, :320]
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u[1::2, :] = frame[480:600, 320:]
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u = list(itertools.chain.from_iterable(u))
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v = np.zeros((self._video_width // 2, self._video_height // 2), dtype=np.int)
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v[::2, :] = frame[self._video_height * 5 // 4:, :self._video_height // 2]
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v[1::2, :] = frame[self._video_height * 5 // 4:, self._video_height // 2:]
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v = list(itertools.chain.from_iterable(v))
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v = np.zeros((240, 320), dtype=np.int)
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v[::2, :] = frame[600:, :320]
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v[1::2, :] = frame[600:, 320:]
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v = list(itertools.chain.from_iterable(v))
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return bytes(y), bytes(u), bytes(v)
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return bytes(y), bytes(u), bytes(v)
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