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miracle-wfdctl: encoding video stream with gstreamer library instead of

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gst-launch-1.0
This commit is contained in:
Derek Dai 2017-03-03 17:15:30 +08:00
parent c458b273b1
commit 9b7d2a24cc
No known key found for this signature in database
GPG key ID: E109CC97553EF009
4 changed files with 48 additions and 86 deletions
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120
src/ctl/wfd-out-session.c
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@ -23,6 +23,7 @@
#include <arpa/inet.h>
#include <unistd.h>
#include <time.h>
#include <gst/gst.h>
#include "wfd-session.h"
#include "shl_log.h"
#include "rtsp.h"
@ -49,6 +50,8 @@ struct wfd_out_session
uint16_t height;
enum wfd_resolution_standard std;
uint32_t mask;
GstElement *pipeline;
};
static const struct rtsp_dispatch_entry out_session_rtsp_disp_tbl[];
@ -227,20 +230,6 @@ int wfd_out_session_initiate_io(struct wfd_session *s,
return 0;
}
static void wfd_out_session_kill_gst(struct wfd_session *s)
{
pid_t pid;
struct wfd_out_session *os = wfd_out_session(s);
if(os->gst_term_source) {
sd_event_source_get_child_pid(os->gst_term_source, &pid);
kill(pid, SIGTERM);
sd_event_source_set_userdata(os->gst_term_source, NULL);
os->gst_term_source = NULL;
}
}
int wfd_out_session_resume(struct wfd_session *s)
{
return wfd_session_request(s,
@ -280,7 +269,11 @@ void wfd_out_session_destroy(struct wfd_session *s)
os->display_name = NULL;
}
wfd_out_session_kill_gst(s);
if(os->pipeline) {
gst_element_set_state(os->pipeline, GST_STATE_NULL);
g_object_unref(os->pipeline);
os->pipeline = NULL;
}
}
int wfd_out_session_initiate_request(struct wfd_session *s)
@ -501,13 +494,14 @@ inline static char * uint16_to_str(uint16_t i, char *buf, size_t len)
return buf;
}
static int wfd_out_session_launch_gst(struct wfd_session *s, pid_t *out)
static int wfd_out_session_create_pipeline(struct wfd_session *s)
{
sigset_t sigset;
char x[16], y[16], width[16], height[16], port[16];
struct wfd_out_session *os = wfd_out_session(s);
char * args[] = {
"gst-launch-1.0",
GstElement *pipeline;
GError *error = NULL;
GstStateChangeReturn r;
const char * pipeline_desc[] = {
"ximagesrc",
"use-damage=false",
"show-pointer=false",
@ -519,10 +513,6 @@ static int wfd_out_session_launch_gst(struct wfd_session *s, pid_t *out)
"!", "video/x-raw,",
"format=YV12",
"!", "vaapih264enc",
/*"!", "video/x-h264,",*/
/*"stream-format=byte-steram,",*/
/*"profile=high",*/
/*"!", "queue",*/
"!", "mpegtsmux",
"!", "rtpmp2tpay",
"!", "udpsink",
@ -531,47 +521,22 @@ static int wfd_out_session_launch_gst(struct wfd_session *s, pid_t *out)
NULL
};
pid_t p = fork();
if(0 > p) {
return p;
}
else if(0 < p) {
log_info("gstreamer (%d) is launched for session %u",
p,
s->id);
*out = p;
return 0;
pipeline = gst_parse_launchv(pipeline_desc, &error);
if(!pipeline) {
if(error) {
log_error("failed to create pipeline: %s", error->message);
g_error_free(error);
}
return -1;
}
sigemptyset(&sigset);
sigaddset(&sigset, SIGTERM);
sigprocmask(SIG_UNBLOCK, &sigset, NULL);
execvp(args[0], args);
exit(1);
}
static int wfd_out_session_handle_gst_term(sd_event_source *source,
const siginfo_t *si,
void *userdata)
{
struct wfd_out_session *os = userdata;
log_trace("gst-launch(%d) terminated", si->si_pid);
sd_event_source_unref(source);
if(!os) {
return 0;
r = gst_element_set_state(pipeline, GST_STATE_READY);
if(GST_STATE_CHANGE_FAILURE == r) {
g_object_unref(pipeline);
return -1;
}
os->gst_term_source = NULL;
if(WFD_SESSION_STATE_PAUSED != wfd_session(os)->state) {
wfd_session_teardown(wfd_session(os));
}
os->pipeline = pipeline;
return 0;
}
@ -583,7 +548,7 @@ static int wfd_out_session_handle_pause_request(struct wfd_session *s,
_rtsp_message_unref_ struct rtsp_message *m = NULL;
int r;
wfd_out_session_kill_gst(s);
gst_element_set_state(wfd_out_session(s)->pipeline, GST_STATE_READY);
r = rtsp_message_new_reply_for(req,
&m,
@ -606,7 +571,7 @@ static int wfd_out_session_handle_teardown_request(struct wfd_session *s,
_rtsp_message_unref_ struct rtsp_message *m = NULL;
int r;
wfd_out_session_kill_gst(s);
gst_element_set_state(wfd_out_session(s)->pipeline, GST_STATE_NULL);
r = rtsp_message_new_reply_for(req,
&m,
@ -627,33 +592,19 @@ static int wfd_out_session_post_handle_play(sd_event_source *source,
void *userdata)
{
struct wfd_session *s = userdata;
int r, status;
pid_t gst;
GstStateChangeReturn r;
sd_event_source_unref(source);
wfd_out_session(s)->gst_launch_source = NULL;
if(getenv("DO_NOT_LAUNCH_GST")) {
return 0;
}
r = wfd_out_session_launch_gst(s, &gst);
if(0 > r) {
return r;
}
r = sd_event_add_child(ctl_wfd_get_loop(),
&wfd_out_session(s)->gst_term_source,
gst, WEXITED,
wfd_out_session_handle_gst_term,
s);
if(0 > r) {
kill(gst, SIGKILL);
waitpid(gst, &status, WNOHANG);
r = gst_element_set_state(wfd_out_session(s)->pipeline,
GST_STATE_PLAYING);
if(GST_STATE_CHANGE_FAILURE == r) {
wfd_session_teardown(s);
return -1;
}
return r;
return 0;
}
static int wfd_out_session_handle_play_request(struct wfd_session *s,
@ -763,6 +714,11 @@ static int wfd_out_session_handle_setup_request(struct wfd_session *s,
return r;
}
r = wfd_out_session_create_pipeline(s);
if(0 > r) {
return r;
}
*out_rep = m;
m = NULL;