/*!
* The first call to the video code, called by oss_new() or similar.
* Here we initialize the various components we use, namely SDL for display,
* ffmpeg for encoding/decoding, and a local video source.
* We do our best to progress even if some of the components are not
* available.
*/
void console_video_start(struct video_desc *env, struct ast_channel *owner)
{
ast_log(LOG_WARNING, "env %p chan %p\n", env, owner);
if (env == NULL) /* video not initialized */
return;
env->owner = owner; /* work even if no owner is specified */
if (env->vthread)
return; /* already initialized, nothing to do */
init_env(env);
env->out.enc = map_config_video_format(env->codec_name);
ast_log(LOG_WARNING, "start video out %s %dx%d\n",
env->codec_name, env->enc_in.w, env->enc_in.h);
/*
* Register all codecs supported by the ffmpeg library.
* We only need to do it once, but probably doesn't
* harm to do it multiple times.
*/
avcodec_init();
avcodec_register_all();
av_log_set_level(AV_LOG_ERROR); /* only report errors */
if (env->out.fps == 0) {
env->out.fps = 15;
ast_log(LOG_WARNING, "fps unset, forcing to %d\n", env->out.fps);
}
if (env->out.bitrate == 0) {
env->out.bitrate = 65000;
ast_log(LOG_WARNING, "bitrate unset, forcing to %d\n", env->out.bitrate);
}
/* create the thread as detached so memory is freed on termination */
ast_pthread_create_detached_background(&env->vthread,
NULL, video_thread, env);
}
int ooh323c_start_call_thread(ooCallData *call) {
char c = 'c';
struct callthread *cur = callThreads;
ast_mutex_lock(&callThreadsLock);
while (cur != NULL && (cur->inUse || ast_mutex_trylock(&cur->lock))) {
cur = cur->next;
}
ast_mutex_unlock(&callThreadsLock);
if (cur != NULL) {
if (cur->inUse || write(cur->thePipe[1], &c, 1) < 0) {
ast_mutex_unlock(&cur->lock);
cur = NULL;
}
}
/* make new thread */
if (cur == NULL) {
if (!(cur = ast_calloc(1, sizeof(struct callthread)))) {
ast_log(LOG_ERROR, "Unable to allocate thread structure for call %s\n",
call->callToken);
return -1;
}
ast_module_ref(myself);
if ((socketpair(PF_LOCAL, SOCK_STREAM, 0, cur->thePipe)) == -1) {
ast_log(LOG_ERROR, "Can't create thread pipe for call %s\n", call->callToken);
ast_free(cur);
return -1;
}
cur->inUse = TRUE;
cur->call = call;
ast_mutex_init(&cur->lock);
if (gH323Debug)
ast_debug(1,"new call thread created for call %s\n", call->callToken);
if(ast_pthread_create_detached_background(&call->callThread, NULL, ooh323c_call_thread, cur) < 0)
{
ast_log(LOG_ERROR, "Unable to start ooh323c call thread for call %s\n",
call->callToken);
ast_mutex_destroy(&cur->lock);
close(cur->thePipe[0]);
close(cur->thePipe[1]);
ast_free(cur);
return -1;
}
} else {
if (gH323Debug)
ast_debug(1,"using existing call thread for call %s\n", call->callToken);
cur->inUse = TRUE;
cur->call = call;
ast_mutex_unlock(&cur->lock);
}
return 0;
}
void *ast_tcptls_server_root(void *data)
{
struct ast_tcptls_session_args *desc = data;
int fd;
struct ast_sockaddr addr;
struct ast_tcptls_session_instance *tcptls_session;
pthread_t launched;
for (;;) {
int i, flags;
if (desc->periodic_fn) {
desc->periodic_fn(desc);
}
i = ast_wait_for_input(desc->accept_fd, desc->poll_timeout);
if (i <= 0) {
continue;
}
fd = ast_accept(desc->accept_fd, &addr);
if (fd < 0) {
if ((errno != EAGAIN) && (errno != EWOULDBLOCK) && (errno != EINTR) && (errno != ECONNABORTED)) {
ast_log(LOG_ERROR, "Accept failed: %s\n", strerror(errno));
break;
}
continue;
}
tcptls_session = ao2_alloc(sizeof(*tcptls_session), session_instance_destructor);
if (!tcptls_session) {
ast_log(LOG_WARNING, "No memory for new session: %s\n", strerror(errno));
if (close(fd)) {
ast_log(LOG_ERROR, "close() failed: %s\n", strerror(errno));
}
continue;
}
tcptls_session->overflow_buf = ast_str_create(128);
flags = fcntl(fd, F_GETFL);
fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
tcptls_session->stream = ast_iostream_from_fd(&fd);
if (!tcptls_session->stream) {
ast_log(LOG_WARNING, "No memory for new session iostream\n");
continue;
}
tcptls_session->parent = desc;
ast_sockaddr_copy(&tcptls_session->remote_address, &addr);
tcptls_session->client = 0;
/* This thread is now the only place that controls the single ref to tcptls_session */
if (ast_pthread_create_detached_background(&launched, NULL, handle_tcptls_connection, tcptls_session)) {
ast_log(LOG_ERROR, "Unable to launch helper thread: %s\n", strerror(errno));
ast_tcptls_close_session_file(tcptls_session);
ao2_ref(tcptls_session, -1);
}
}
return NULL;
}
void *ast_tcptls_server_root(void *data)
{
struct ast_tcptls_session_args *desc = data;
int fd;
struct sockaddr_in sin;
socklen_t sinlen;
struct ast_tcptls_session_instance *tcptls_session;
pthread_t launched;
for (;;) {
int i, flags;
if (desc->periodic_fn)
desc->periodic_fn(desc);
i = ast_wait_for_input(desc->accept_fd, desc->poll_timeout);
if (i <= 0)
continue;
sinlen = sizeof(sin);
fd = accept(desc->accept_fd, (struct sockaddr *) &sin, &sinlen);
if (fd < 0) {
if ((errno != EAGAIN) && (errno != EINTR))
ast_log(LOG_WARNING, "Accept failed: %s\n", strerror(errno));
continue;
}
tcptls_session = ao2_alloc(sizeof(*tcptls_session), session_instance_destructor);
if (!tcptls_session) {
ast_log(LOG_WARNING, "No memory for new session: %s\n", strerror(errno));
close(fd);
continue;
}
ast_mutex_init(&tcptls_session->lock);
flags = fcntl(fd, F_GETFL);
fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
tcptls_session->fd = fd;
tcptls_session->parent = desc;
memcpy(&tcptls_session->remote_address, &sin, sizeof(tcptls_session->remote_address));
tcptls_session->client = 0;
/* This thread is now the only place that controls the single ref to tcptls_session */
if (ast_pthread_create_detached_background(&launched, NULL, handle_tcptls_connection, tcptls_session)) {
ast_log(LOG_WARNING, "Unable to launch helper thread: %s\n", strerror(errno));
close(tcptls_session->fd);
ao2_ref(tcptls_session, -1);
}
}
return NULL;
}
static void *hook_launch_thread(void *data)
{
struct hook_thread_arg *arg = data;
struct ast_variable hook_id = {
.name = "HOOK_ID",
.value = arg->hook_id,
};
struct ast_variable chan_name_var = {
.name = "HOOK_CHANNEL",
.value = arg->chan_name,
.next = &hook_id,
};
ast_pbx_outgoing_exten("Local", NULL, full_exten_name, 60,
arg->context, arg->exten, 1, NULL, AST_OUTGOING_NO_WAIT,
NULL, NULL, &chan_name_var, NULL, NULL, 1, NULL);
hook_thread_arg_destroy(arg);
return NULL;
}
static struct hook_thread_arg *hook_thread_arg_alloc(struct ast_channel *chan,
struct hook_state *state)
{
struct hook_thread_arg *arg;
if (!(arg = ast_calloc(1, sizeof(*arg)))) {
return NULL;
}
ast_channel_lock(chan);
arg->chan_name = ast_strdup(ast_channel_name(chan));
ast_channel_unlock(chan);
if (!arg->chan_name) {
hook_thread_arg_destroy(arg);
return NULL;
}
if (ast_asprintf(&arg->hook_id, "%u", state->hook_id) == -1) {
hook_thread_arg_destroy(arg);
return NULL;
}
if (!(arg->context = ast_strdup(state->context))) {
hook_thread_arg_destroy(arg);
return NULL;
}
if (!(arg->exten = ast_strdup(state->exten))) {
hook_thread_arg_destroy(arg);
return NULL;
}
return arg;
}
static int do_hook(struct ast_channel *chan, struct hook_state *state)
{
pthread_t t;
struct hook_thread_arg *arg;
int res;
if (!(arg = hook_thread_arg_alloc(chan, state))) {
return -1;
}
/*
* We don't want to block normal frame processing *at all* while we kick
* this off, so do it in a new thread.
*/
res = ast_pthread_create_detached_background(&t, NULL, hook_launch_thread, arg);
if (res != 0) {
hook_thread_arg_destroy(arg);
}
return res;
}
static int hook_callback(struct ast_audiohook *audiohook, struct ast_channel *chan,
struct ast_frame *frame, enum ast_audiohook_direction direction)
{
struct hook_state *state = (struct hook_state *) audiohook; /* trust me. */
struct timeval now;
int res = 0;
if (audiohook->status == AST_AUDIOHOOK_STATUS_DONE || state->disabled) {
return 0;
}
now = ast_tvnow();
if (ast_tvdiff_ms(now, state->last_hook) > state->interval * 1000) {
if ((res = do_hook(chan, state))) {
const char *name;
ast_channel_lock(chan);
name = ast_strdupa(ast_channel_name(chan));
ast_channel_unlock(chan);
ast_log(LOG_WARNING, "Failed to run hook on '%s'\n", name);
}
state->last_hook = now;
}
return res;
}
static struct hook_state *hook_state_alloc(const char *context, const char *exten,
unsigned int interval, unsigned int hook_id)
{
struct hook_state *state;
if (!(state = ast_calloc(1, sizeof(*state)))) {
return NULL;
}
state->context = ast_strdup(context);
state->exten = ast_strdup(exten);
state->interval = interval;
state->hook_id = hook_id;
ast_audiohook_init(&state->audiohook, AST_AUDIOHOOK_TYPE_MANIPULATE,
AST_MODULE, AST_AUDIOHOOK_MANIPULATE_ALL_RATES);
state->audiohook.manipulate_callback = hook_callback;
return state;
}
static int init_hook(struct ast_channel *chan, const char *context, const char *exten,
unsigned int interval, unsigned int hook_id)
{
struct hook_state *state;
struct ast_datastore *datastore;
char uid[32];
snprintf(uid, sizeof(uid), "%u", hook_id);
if (!(datastore = ast_datastore_alloc(&hook_datastore, uid))) {
return -1;
}
ast_module_ref(ast_module_info->self);
if (!(state = hook_state_alloc(context, exten, interval, hook_id))) {
ast_datastore_free(datastore);
return -1;
}
datastore->data = state;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_audiohook_attach(chan, &state->audiohook);
ast_channel_unlock(chan);
return 0;
}
static int hook_on(struct ast_channel *chan, const char *data, unsigned int hook_id)
{
char *parse = ast_strdupa(S_OR(data, ""));
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(context);
AST_APP_ARG(exten);
AST_APP_ARG(interval);
);
static void launch_monitor_thread(struct ast_channel *chan, const char *filename,
unsigned int flags, int readvol, int writevol,
const char *post_process, const char *filename_write,
char *filename_read, const char *uid_channel_var)
{
pthread_t thread;
struct mixmonitor *mixmonitor;
char postprocess2[1024] = "";
char *datastore_id = NULL;
postprocess2[0] = 0;
/* If a post process system command is given attach it to the structure */
if (!ast_strlen_zero(post_process)) {
char *p1, *p2;
p1 = ast_strdupa(post_process);
for (p2 = p1; *p2; p2++) {
if (*p2 == '^' && *(p2+1) == '{') {
*p2 = '$';
}
}
pbx_substitute_variables_helper(chan, p1, postprocess2, sizeof(postprocess2) - 1);
}
/* Pre-allocate mixmonitor structure and spy */
if (!(mixmonitor = ast_calloc(1, sizeof(*mixmonitor)))) {
return;
}
/* Setup the actual spy before creating our thread */
if (ast_audiohook_init(&mixmonitor->audiohook, AST_AUDIOHOOK_TYPE_SPY, mixmonitor_spy_type, 0)) {
mixmonitor_free(mixmonitor);
return;
}
/* Copy over flags and channel name */
mixmonitor->flags = flags;
if (!(mixmonitor->autochan = ast_autochan_setup(chan))) {
mixmonitor_free(mixmonitor);
return;
}
if (setup_mixmonitor_ds(mixmonitor, chan, &datastore_id)) {
ast_autochan_destroy(mixmonitor->autochan);
mixmonitor_free(mixmonitor);
ast_free(datastore_id);
return;
}
if (!ast_strlen_zero(uid_channel_var)) {
if (datastore_id) {
pbx_builtin_setvar_helper(chan, uid_channel_var, datastore_id);
}
}
ast_free(datastore_id);
mixmonitor->name = ast_strdup(ast_channel_name(chan));
if (!ast_strlen_zero(postprocess2)) {
mixmonitor->post_process = ast_strdup(postprocess2);
}
if (!ast_strlen_zero(filename)) {
mixmonitor->filename = ast_strdup(filename);
}
if (!ast_strlen_zero(filename_write)) {
mixmonitor->filename_write = ast_strdup(filename_write);
}
if (!ast_strlen_zero(filename_read)) {
mixmonitor->filename_read = ast_strdup(filename_read);
}
ast_set_flag(&mixmonitor->audiohook, AST_AUDIOHOOK_TRIGGER_SYNC);
if (readvol)
mixmonitor->audiohook.options.read_volume = readvol;
if (writevol)
mixmonitor->audiohook.options.write_volume = writevol;
if (startmon(chan, &mixmonitor->audiohook)) {
ast_log(LOG_WARNING, "Unable to add '%s' spy to channel '%s'\n",
mixmonitor_spy_type, ast_channel_name(chan));
ast_audiohook_destroy(&mixmonitor->audiohook);
mixmonitor_free(mixmonitor);
return;
}
ast_pthread_create_detached_background(&thread, NULL, mixmonitor_thread, mixmonitor);
}
struct ast_channel *stasis_app_control_snoop(struct ast_channel *chan,
enum stasis_app_snoop_direction spy, enum stasis_app_snoop_direction whisper,
const char *app, const char *app_args, const char *snoop_id)
{
RAII_VAR(struct stasis_app_snoop *, snoop, NULL, ao2_cleanup);
struct ast_format_cap *caps;
pthread_t thread;
struct ast_assigned_ids assignedids = {
.uniqueid = snoop_id,
};
if (spy == STASIS_SNOOP_DIRECTION_NONE &&
whisper == STASIS_SNOOP_DIRECTION_NONE) {
return NULL;
}
snoop = ao2_alloc_options(sizeof(*snoop), snoop_destroy, AO2_ALLOC_OPT_LOCK_NOLOCK);
if (!snoop) {
return NULL;
}
/* Allocate a buffer to store the Stasis application and arguments in */
snoop->app = ast_str_create(64);
if (!snoop->app) {
return NULL;
}
ast_str_set(&snoop->app, 0, "%s", app);
if (!ast_strlen_zero(app_args)) {
ast_str_append(&snoop->app, 0, ",%s", app_args);
}
/* Set up a timer for the Snoop channel so it wakes up at a specific interval */
snoop->timer = ast_timer_open();
if (!snoop->timer) {
return NULL;
}
ast_timer_set_rate(snoop->timer, 1000 / SNOOP_INTERVAL);
/* Determine which signed linear format should be used */
snoop_determine_format(chan, snoop);
/* Allocate a Snoop channel and set up various parameters */
snoop->chan = ast_channel_alloc(1, AST_STATE_UP, "", "", "", "", "", &assignedids, NULL, 0, "Snoop/%s-%08x", ast_channel_uniqueid(chan),
(unsigned)ast_atomic_fetchadd_int((int *)&chan_idx, +1));
if (!snoop->chan) {
return NULL;
}
ast_copy_string(snoop->uniqueid, ast_channel_uniqueid(chan), sizeof(snoop->uniqueid));
/* To keep the channel valid on the Snoop structure until it is destroyed we bump the ref up here */
ast_channel_ref(snoop->chan);
ast_channel_tech_set(snoop->chan, &snoop_tech);
ao2_ref(snoop, +1);
ast_channel_tech_pvt_set(snoop->chan, snoop);
ast_channel_set_fd(snoop->chan, 0, ast_timer_fd(snoop->timer));
/* The format on the Snoop channel will be this signed linear format, and it will never change */
caps = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
if (!caps) {
ast_channel_unlock(snoop->chan);
ast_hangup(snoop->chan);
return NULL;
}
ast_format_cap_append(caps, snoop->spy_format, 0);
ast_channel_nativeformats_set(snoop->chan, caps);
ao2_ref(caps, -1);
ast_channel_set_writeformat(snoop->chan, snoop->spy_format);
ast_channel_set_rawwriteformat(snoop->chan, snoop->spy_format);
ast_channel_set_readformat(snoop->chan, snoop->spy_format);
ast_channel_set_rawreadformat(snoop->chan, snoop->spy_format);
ast_channel_unlock(snoop->chan);
if (spy != STASIS_SNOOP_DIRECTION_NONE) {
if (snoop_setup_audiohook(chan, AST_AUDIOHOOK_TYPE_SPY, spy, &snoop->spy_direction, &snoop->spy)) {
ast_hangup(snoop->chan);
return NULL;
}
snoop->spy_samples = ast_format_get_sample_rate(snoop->spy_format) / (1000 / SNOOP_INTERVAL);
snoop->spy_active = 1;
}
/* If whispering is enabled set up the audiohook */
if (whisper != STASIS_SNOOP_DIRECTION_NONE) {
if (snoop_setup_audiohook(chan, AST_AUDIOHOOK_TYPE_WHISPER, whisper, &snoop->whisper_direction, &snoop->whisper)) {
ast_hangup(snoop->chan);
return NULL;
}
snoop->whisper_active = 1;
}
/* Create the thread which services the Snoop channel */
ao2_ref(snoop, +1);
if (ast_pthread_create_detached_background(&thread, NULL, snoop_stasis_thread, snoop)) {
ao2_cleanup(snoop);
/* No other thread is servicing this channel so we can immediately hang it up */
ast_hangup(snoop->chan);
return NULL;
}
publish_chanspy_message(snoop, 1);
/* The caller of this has a reference as well */
return ast_channel_ref(snoop->chan);
}
/*
* Helper thread to periodically poll the video sources and enqueue the
* generated frames directed to the remote party to the channel's queue.
* Using a separate thread also helps because the encoding can be
* computationally expensive so we don't want to starve the main thread.
*/
static void *video_thread(void *arg)
{
struct video_desc *env = arg;
int count = 0;
char save_display[128] = "";
int i; /* integer variable used as iterator */
/* if sdl_videodriver is set, override the environment. Also,
* if it contains 'console' override DISPLAY around the call to SDL_Init
* so we use the console as opposed to the x11 version of aalib
*/
if (!ast_strlen_zero(env->sdl_videodriver)) { /* override */
const char *s = getenv("DISPLAY");
setenv("SDL_VIDEODRIVER", env->sdl_videodriver, 1);
if (s && !strcasecmp(env->sdl_videodriver, "aalib-console")) {
ast_copy_string(save_display, s, sizeof(save_display));
unsetenv("DISPLAY");
}
}
sdl_setup(env);
if (!ast_strlen_zero(save_display)) {
setenv("DISPLAY", save_display, 1);
}
ast_mutex_init(&env->dec_lock); /* used to sync decoder and renderer */
if (grabber_open(&env->out)) {
ast_log(LOG_WARNING, "cannot open local video source\n");
}
if (env->out.device_num) {
env->out.devices[env->out.device_primary].status_index |= IS_PRIMARY | IS_SECONDARY;
}
/* even if no device is connected, we must call video_out_init,
* as some of the data structures it initializes are
* used in get_video_frames()
*/
video_out_init(env);
/* Writes intial status of the sources. */
if (env->gui) {
for (i = 0; i < env->out.device_num; i++) {
print_message(env->gui->thumb_bd_array[i].board,
src_msgs[env->out.devices[i].status_index]);
}
}
for (;;) {
struct timespec t = { 0, 50000000 }; /* XXX 20 times/sec */
struct ast_frame *p, *f;
struct ast_channel *chan;
int fd;
char *caption = NULL, buf[160];
/* determine if video format changed */
if (count++ % 10 == 0) {
if (env->out.sendvideo && env->out.devices) {
snprintf(buf, sizeof(buf), "%s %s %dx%d @@ %dfps %dkbps",
env->out.devices[env->out.device_primary].name, env->codec_name,
env->enc_in.w, env->enc_in.h,
env->out.fps, env->out.bitrate / 1000);
} else {
sprintf(buf, "hold");
}
caption = buf;
}
/* manage keypad events */
/* XXX here we should always check for events,
* otherwise the drag will not work */
if (env->gui)
eventhandler(env, caption);
/* sleep for a while */
nanosleep(&t, NULL);
if (env->in) {
struct video_dec_desc *v = env->in;
/*
* While there is something to display, call the decoder and free
* the buffer, possibly enabling the receiver to store new data.
*/
while (v->dec_in_dpy) {
struct fbuf_t *tmp = v->dec_in_dpy; /* store current pointer */
/* decode the frame, but show it only if not frozen */
if (v->d_callbacks->dec_run(v, tmp) && !env->frame_freeze)
show_frame(env, WIN_REMOTE);
tmp->used = 0; /* mark buffer as free */
tmp->ebit = 0;
ast_mutex_lock(&env->dec_lock);
if (++v->dec_in_dpy == &v->dec_in[N_DEC_IN]) /* advance to next, circular */
v->dec_in_dpy = &v->dec_in[0];
if (v->dec_in_cur == NULL) /* receiver was idle, enable it... */
v->dec_in_cur = tmp; /* using the slot just freed */
else if (v->dec_in_dpy == v->dec_in_cur) /* this was the last slot */
v->dec_in_dpy = NULL; /* nothing more to display */
ast_mutex_unlock(&env->dec_lock);
}
}
if (env->shutdown)
break;
f = get_video_frames(env, &p); /* read and display */
if (!f)
continue;
chan = env->owner;
if (chan == NULL) {
/* drop the chain of frames, nobody uses them */
while (f) {
struct ast_frame *g = AST_LIST_NEXT(f, frame_list);
ast_frfree(f);
f = g;
}
continue;
}
ast_channel_lock(chan);
/* AST_LIST_INSERT_TAIL is only good for one frame, cannot use here */
if (ast_channel_readq(chan).first == NULL) {
ast_channel_readq(chan).first = f;
} else {
ast_channel_readq(chan).last->frame_list.next = f;
}
ast_channel_readq(chan).last = p;
/*
* more or less same as ast_queue_frame, but extra
* write on the alertpipe to signal frames.
*/
if (ast_channel_alertable(chan)) {
for (p = f; p; p = AST_LIST_NEXT(p, frame_list)) {
if (ast_channel_alert(chan)) {
ast_log(LOG_WARNING, "Unable to write to alert pipe on %s, frametype/subclass %d/%d: %s!\n",
ast_channel_name(chan), f->frametype, f->subclass, strerror(errno));
}
}
ast_channel_unlock(chan);
}
/* thread terminating, here could call the uninit */
/* uninitialize the local and remote video environments */
env->in = dec_uninit(env->in);
video_out_uninit(env);
if (env->gui)
env->gui = cleanup_sdl(env->gui, env->out.device_num);
ast_mutex_destroy(&env->dec_lock);
env->shutdown = 0;
return NULL;
}
static void copy_geometry(struct fbuf_t *src, struct fbuf_t *dst)
{
if (dst->w == 0)
dst->w = src->w;
if (dst->h == 0)
dst->h = src->h;
}
/*! initialize the video environment.
* Apart from the formats (constant) used by sdl and the codec,
* we use enc_in as the basic geometry.
*/
static void init_env(struct video_desc *env)
{
struct fbuf_t *c = &(env->out.loc_src_geometry); /* local source */
struct fbuf_t *ei = &(env->enc_in); /* encoder input */
struct fbuf_t *ld = &(env->loc_dpy); /* local display */
struct fbuf_t *rd = &(env->rem_dpy); /* remote display */
int i; /* integer working as iterator */
c->pix_fmt = PIX_FMT_YUV420P; /* default - camera format */
ei->pix_fmt = PIX_FMT_YUV420P; /* encoder input */
if (ei->w == 0 || ei->h == 0) {
ei->w = 352;
ei->h = 288;
}
ld->pix_fmt = rd->pix_fmt = PIX_FMT_YUV420P; /* sdl format */
/* inherit defaults */
copy_geometry(ei, c); /* camera inherits from encoder input */
copy_geometry(ei, rd); /* remote display inherits from encoder input */
copy_geometry(rd, ld); /* local display inherits from remote display */
/* fix the size of buffers for small windows */
for (i = 0; i < env->out.device_num; i++) {
env->src_dpy[i].pix_fmt = PIX_FMT_YUV420P;
env->src_dpy[i].w = SRC_WIN_W;
env->src_dpy[i].h = SRC_WIN_H;
}
/* now we set the default coordinates for the picture in picture
frames inside the env_in buffers, those can be changed by dragging the
picture in picture with left click */
env->out.pip_x = ei->w - ei->w/3;
env->out.pip_y = ei->h - ei->h/3;
}
/*!
* The first call to the video code, called by oss_new() or similar.
* Here we initialize the various components we use, namely SDL for display,
* ffmpeg for encoding/decoding, and a local video source.
* We do our best to progress even if some of the components are not
* available.
*/
void console_video_start(struct video_desc *env, struct ast_channel *owner)
{
ast_log(LOG_WARNING, "env %p chan %p\n", env, owner);
if (env == NULL) /* video not initialized */
return;
env->owner = owner; /* work even if no owner is specified */
if (env->vthread)
return; /* already initialized, nothing to do */
init_env(env);
env->out.enc = map_config_video_format(env->codec_name);
ast_log(LOG_WARNING, "start video out %s %dx%d\n",
env->codec_name, env->enc_in.w, env->enc_in.h);
/*
* Register all codecs supported by the ffmpeg library.
* We only need to do it once, but probably doesn't
* harm to do it multiple times.
*/
avcodec_init();
avcodec_register_all();
av_log_set_level(AV_LOG_ERROR); /* only report errors */
if (env->out.fps == 0) {
env->out.fps = 15;
ast_log(LOG_WARNING, "fps unset, forcing to %d\n", env->out.fps);
}
if (env->out.bitrate == 0) {
env->out.bitrate = 65000;
ast_log(LOG_WARNING, "bitrate unset, forcing to %d\n", env->out.bitrate);
}
/* create the thread as detached so memory is freed on termination */
ast_pthread_create_detached_background(&env->vthread,
NULL, video_thread, env);
}