fakevideo: new module for fake video input/output

Suggested-by: Fadeev Alexander

4 files changed, 312 insertions, 0 deletions

diff --git a/docs/README b/docs/README
index 7fe24bd..2468bfd 100644
--- a/docs/README
+++ b/docs/README
@@ -7,6 +7,121 @@ Copyright (c) 2010 - 2014 Creytiv.com
 Distributed under BSD license
 
 
+Features:
+
+* Call features:
+  - Unlimited number of SIP accounts
+  - Unlimited number of calls
+  - Unattended call transfer
+  - Auto answer
+  - Call hold and resume
+  - Microphone mute
+  - Call waiting
+  - Call recording
+  - Peer to peer calls
+  - Video calls
+  - Instant Messaging
+  - Custom ring tones
+  - Repeat last call (redial)
+  - Message Waiting Indication (MWI)
+  - Address book with presence
+
+* Signaling:
+  - SIP protocol support
+  - SIP outbound protocol for NAT-traversal
+  - SIP Re-invite
+  - SIP Routes
+  - SIP early media support
+  - DNS NAPTR/SRV support
+  - Multiple accounts support
+  - DTMF support (RTP, SIP INFO)
+
+* Security:
+  - Signalling encryption (TLS)
+  - Audio and video encryption (Secure RTP)
+  - DTLS-SRTP key exchange protocol
+  - ZRTP key exchange protocol
+  - SDES key exchange protocol
+
+* Audio:
+  - Low latency audio pipeline
+  - High definition audio codecs
+  - Audio device configuration
+  - Audio filter plugins
+  - Internal audio resampler for fixed sampling rates
+  - Linear 16 bit wave format support for ringtones
+  - Packet loss concealment (PLC)
+  - Configurable ringtone playback device
+  - Automatic gain control (AGC) and Noise reducation
+  - Acoustic echo control (AEC)
+
+* Audio-codecs:
+  - AMR narrowband, AMR wideband
+  - BroadVoice32 BV32
+  - CELT
+  - G.711
+  - G.722
+  - G.726
+  - GSM
+  - iLBC
+  - iSAC
+  - L16
+  - Opus
+  - Silk
+  - Speex
+
+* Audio-drivers:
+  - Advanced Linux Sound Architecture (ALSA) audio-driver
+  - Android OpenSLES audio-driver
+  - Gstreamer playbin input audio-driver
+  - MacOSX/iOS coreaudio/audiounit audio-driver
+  - Open Sound System (OSS) audio-driver
+  - Portaudio audio-driver
+  - Windows winwave audio-driver
+
+* Video:
+  - Support for H.264, H.263, VP8, MPEG-4 Video
+  - Configurable resolution/framerate/bitrate
+  - Configurable video input/output
+  - Support for asymmetric video
+
+* Video-codecs:
+  - H.264
+  - H.263
+  - VP8
+  - MPEG-4
+
+* Video-drivers:
+  - iOS avcapture video-source
+  - FFmpeg libavformat/avdevice input
+  - Cairo video-source test module
+  - Direct Show video-source
+  - MacOSX QTcapture/quicktime video-source
+  - RST media player
+  - Linux V4L/V4L2 video-source
+  - X11 grabber video-source
+  - DirectFB video-output
+  - OpenGL/OpenGLES video-output
+  - SDL/SDL2 video-output
+  - X11 video-output
+
+* NAT-traversal:
+  - STUN support
+  - TURN server support
+  - ICE and ICE-lite support
+  - NATPMP support
+
+* Networking:
+  - multihoming, IPv4/IPv6
+  - automatic network roaming
+
+* Management:
+  - Embedded web-server with HTTP interface
+  - Command-line console over UDP/TCP
+  - Command line interface (CLI)
+  - Simple configuration files
+
+
 Design goals:
 
 * Minimalistic and modular VoIP client
@@ -38,6 +153,7 @@ directfb      DirectFB video display module
 dshow         Windows DirectShow video source
 dtls_srtp     DTLS-SRTP end-to-end encryption
 evdev         Linux input driver
+fakevideo     Fake video input/output driver
 g711          G.711 audio codec
 g722          G.722 audio codec
 g7221         G.722.1 audio codec
diff --git a/mk/modules.mk b/mk/modules.mk
index 64428a4..f5fedc7 100644
--- a/mk/modules.mk
+++ b/mk/modules.mk
@@ -205,6 +205,9 @@ MODULES   += aubridge
 endif
 ifneq ($(USE_VIDEO),)
 MODULES   += vidloop selfview vidbridge
+ifneq ($(HAVE_PTHREAD),)
+MODULES   += fakevideo
+endif
 endif
 
 
diff --git a/modules/fakevideo/fakevideo.c b/modules/fakevideo/fakevideo.c
new file mode 100644
index 0000000..fbeeb60
--- /dev/null
+++ b/modules/fakevideo/fakevideo.c
@@ -0,0 +1,182 @@
+/**
+ * @file fakevideo.c Fake video source and video display
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+#define _BSD_SOURCE 1
+#include <unistd.h>
+#include <pthread.h>
+#include <re.h>
+#include <rem.h>
+#include <baresip.h>
+
+
+struct vidsrc_st {
+	struct vidsrc *vs;  /* inheritance */
+	struct vidframe *frame;
+	pthread_t thread;
+	bool run;
+	int fps;
+	vidsrc_frame_h *frameh;
+	void *arg;
+};
+
+struct vidisp_st {
+	struct vidisp *vd;  /* inheritance */
+};
+
+
+static struct vidsrc *vidsrc;
+static struct vidisp *vidisp;
+
+
+static void *read_thread(void *arg)
+{
+	struct vidsrc_st *st = arg;
+	uint64_t ts = tmr_jiffies();
+
+	while (st->run) {
+
+		if (tmr_jiffies() < ts) {
+			sys_msleep(4);
+			continue;
+		}
+
+		st->frameh(st->frame, st->arg);
+
+		ts += (1000/st->fps);
+	}
+
+	return NULL;
+}
+
+
+static void src_destructor(void *arg)
+{
+	struct vidsrc_st *st = arg;
+
+	if (st->run) {
+		st->run = false;
+		pthread_join(st->thread, NULL);
+	}
+
+	mem_deref(st->frame);
+	mem_deref(st->vs);
+}
+
+
+static void disp_destructor(void *arg)
+{
+	struct vidisp_st *st = arg;
+
+	mem_deref(st->vd);
+}
+
+
+static int src_alloc(struct vidsrc_st **stp, struct vidsrc *vs,
+		     struct media_ctx **ctx, struct vidsrc_prm *prm,
+		     const struct vidsz *size, const char *fmt,
+		     const char *dev, vidsrc_frame_h *frameh,
+		     vidsrc_error_h *errorh, void *arg)
+{
+	struct vidsrc_st *st;
+	int err;
+
+	(void)ctx;
+	(void)fmt;
+	(void)dev;
+	(void)errorh;
+
+	if (!stp || !prm || !size || !frameh)
+		return EINVAL;
+
+	st = mem_zalloc(sizeof(*st), src_destructor);
+	if (!st)
+		return ENOMEM;
+
+	st->vs     = mem_ref(vs);
+	st->fps    = prm->fps;
+	st->frameh = frameh;
+	st->arg    = arg;
+
+	err = vidframe_alloc(&st->frame, VID_FMT_YUV420P, size);
+	if (err)
+		goto out;
+
+	st->run = true;
+	err = pthread_create(&st->thread, NULL, read_thread, st);
+	if (err) {
+		st->run = false;
+		goto out;
+	}
+
+ out:
+	if (err)
+		mem_deref(st);
+	else
+		*stp = st;
+
+	return err;
+}
+
+
+static int disp_alloc(struct vidisp_st **stp, struct vidisp *vd,
+		      struct vidisp_prm *prm, const char *dev,
+		      vidisp_resize_h *resizeh, void *arg)
+{
+	struct vidisp_st *st;
+	(void)prm;
+	(void)dev;
+	(void)resizeh;
+	(void)arg;
+
+	if (!stp || !vd)
+		return EINVAL;
+
+	st = mem_zalloc(sizeof(*st), disp_destructor);
+	if (!st)
+		return ENOMEM;
+
+	st->vd = mem_ref(vd);
+
+	*stp = st;
+
+	return 0;
+}
+
+
+static int display(struct vidisp_st *st, const char *title,
+		   const struct vidframe *frame)
+{
+	(void)st;
+	(void)title;
+	(void)frame;
+
+	return 0;
+}
+
+
+static int module_init(void)
+{
+	int err = 0;
+	err |= vidsrc_register(&vidsrc, "fakevideo", src_alloc, NULL);
+	err |= vidisp_register(&vidisp, "fakevideo", disp_alloc, NULL,
+			       display, NULL);
+	return err;
+}
+
+
+static int module_close(void)
+{
+	vidsrc = mem_deref(vidsrc);
+	vidisp = mem_deref(vidisp);
+	return 0;
+}
+
+
+EXPORT_SYM const struct mod_export DECL_EXPORTS(fakevideo) = {
+	"fakevideo",
+	"fakevideo",
+	module_init,
+	module_close
+};
diff --git a/modules/fakevideo/module.mk b/modules/fakevideo/module.mk
new file mode 100644
index 0000000..fbe1e63
--- /dev/null
+++ b/modules/fakevideo/module.mk
@@ -0,0 +1,11 @@
+#
+# module.mk
+#
+# Copyright (C) 2010 Creytiv.com
+#
+
+MOD		:= fakevideo
+$(MOD)_SRCS	+= fakevideo.c
+$(MOD)_LFLAGS	+=
+
+include mk/mod.mk