About Video Stream tutorial

[primeking]

When I run the Video stream tutorial on the stm32f767,the video do not display!
like this:

I have generate the packed_fs.c by the Embedded Filesystem tutorial .
the file list like this:

{"/web_root/index.html", v1, sizeof(v1), 1741116717},
{"/images/1.jpg", v2, sizeof(v2), 1741116717},
{"/images/2.jpg", v3, sizeof(v3), 1741116717},
{"/images/3.jpg", v4, sizeof(v4), 1741116717},
{"/images/4.jpg", v5, sizeof(v5), 1741116717},
{"/images/5.jpg", v6, sizeof(v6), 1741116717},
{"/images/6.jpg", v7, sizeof(v7), 1741116717},

use the stlink debug find that:
the function mg_file_read can read nothing.
data.buf == NULL ture
c->data[0] != 'S' ture

// The image stream is simulated by sending MJPEG frames specified by the
// "files" array of file names.
static void broadcast_mjpeg_frame(struct mg_mgr *mgr) {
const char *files[] = {"images/1.jpg", "images/2.jpg", "images/3.jpg",
"images/4.jpg", "images/5.jpg", "images/6.jpg"};
size_t nfiles = sizeof(files) / sizeof(files[0]);
static size_t i;
const char *path = files[i++ % nfiles];
struct mg_str data = mg_file_read(&mg_fs_packed, path); // Read next file
struct mg_connection *c;
for (c = mgr->conns; c != NULL; c = c->next) {
if (c->data[0] != 'S') continue; // Skip non-stream connections
if (data.buf == NULL) continue; // Skip on file read error
mg_printf(c,
"--foo\r\nContent-Type: image/jpeg\r\n"
"Content-Length: %lu\r\n\r\n",
data.len);
mg_send(c, data.buf, data.len);
mg_send(c, "\r\n", 2);
}
free((void *) data.buf);
}

now can you help me?

[scaprile]

#3109
Please do not open new questions for the same subject.

Please see our documentation, and follow the guidelines in our tutorials.
If you will be using the packed file system, read the packed file system tutorial https://mongoose.ws/documentation/tutorials/core/embedded-filesystem/
If you will be using mg_file_read(), read its doc https://mongoose.ws/documentation/#mg_file_read

c->data[0] is not magical, you have to mark that when getting a connection

mongoose/tutorials/http/video-stream/main.c

Line 13 in c2e2432

c->data[0] = 'S'; // Mark that connection as live streamer

If you pack as /images/x, why do you expect to read at images/x ?

Do this in your computer, learn, then go to your microcontroller with half the problem solved:

$ git diff main.c
diff --git a/tutorials/http/video-stream/main.c b/tutorials/http/video-stream/main.c
index 3c8b34f0..d04476f9 100644
--- a/tutorials/http/video-stream/main.c
+++ b/tutorials/http/video-stream/main.c
@@ -27,12 +27,12 @@ static void cb(struct mg_connection *c, int ev, void *ev_data) {
 // The image stream is simulated by sending MJPEG frames specified by the
 // "files" array of file names.
 static void broadcast_mjpeg_frame(struct mg_mgr *mgr) {
-  const char *files[] = {"images/1.jpg", "images/2.jpg", "images/3.jpg",
-                         "images/4.jpg", "images/5.jpg", "images/6.jpg"};
+  const char *files[] = {"/images/1.jpg", "/images/2.jpg", "/images/3.jpg",
+                         "/images/4.jpg", "/images/5.jpg", "/images/6.jpg"};
   size_t nfiles = sizeof(files) / sizeof(files[0]);
   static size_t i;
   const char *path = files[i++ % nfiles];
-  struct mg_str data = mg_file_read(&mg_fs_posix, path);  // Read next file
+  struct mg_str data = mg_file_read(&mg_fs_packed, path);  // Read next file
   struct mg_connection *c;
   for (c = mgr->conns; c != NULL; c = c->next) {
     if (c->data[0] != 'S') continue;  // Skip non-stream connections

$  ./pack web_root/* images/* > packed_fs.c
$  make CFLAGS_EXTRA=make CFLAGS_EXTRA="-DMG_ENABLE_PACKED_FS=1 packed_fs.c"

Tested and works. Closing

[primeking]

#3109 Please do not open new questions for the same subject.

Please see our documentation, and follow the guidelines in our tutorials. If you will be using the packed file system, read the packed file system tutorial https://mongoose.ws/documentation/tutorials/core/embedded-filesystem/ If you will be using mg_file_read(), read its doc https://mongoose.ws/documentation/#mg_file_read

c->data[0] is not magical, you have to mark that when getting a connection

mongoose/tutorials/http/video-stream/main.c

Line 13 in c2e2432

c->data[0] = 'S'; // Mark that connection as live streamer

If you pack as /images/x, why do you expect to read at images/x ?
Do this in your computer, learn, then go to your microcontroller with half the problem solved:

$ git diff main.c
diff --git a/tutorials/http/video-stream/main.c b/tutorials/http/video-stream/main.c
index 3c8b34f0..d04476f9 100644
--- a/tutorials/http/video-stream/main.c
+++ b/tutorials/http/video-stream/main.c
@@ -27,12 +27,12 @@ static void cb(struct mg_connection *c, int ev, void *ev_data) {
 // The image stream is simulated by sending MJPEG frames specified by the
 // "files" array of file names.
 static void broadcast_mjpeg_frame(struct mg_mgr *mgr) {
-  const char *files[] = {"images/1.jpg", "images/2.jpg", "images/3.jpg",
-                         "images/4.jpg", "images/5.jpg", "images/6.jpg"};
+  const char *files[] = {"/images/1.jpg", "/images/2.jpg", "/images/3.jpg",
+                         "/images/4.jpg", "/images/5.jpg", "/images/6.jpg"};
   size_t nfiles = sizeof(files) / sizeof(files[0]);
   static size_t i;
   const char *path = files[i++ % nfiles];
-  struct mg_str data = mg_file_read(&mg_fs_posix, path);  // Read next file
+  struct mg_str data = mg_file_read(&mg_fs_packed, path);  // Read next file
   struct mg_connection *c;
   for (c = mgr->conns; c != NULL; c = c->next) {
     if (c->data[0] != 'S') continue;  // Skip non-stream connections

$  ./pack web_root/* images/* > packed_fs.c
$  make CFLAGS_EXTRA=make CFLAGS_EXTRA="-DMG_ENABLE_PACKED_FS=1 packed_fs.c"

Tested and works. Closing
@scaprile
Thank you very much！
It‘s work！
I am sorry create a new question！
I will see the document and follow the tutorial.
I will try computer first.
Thanks!