From 2ca22deaad5cc95187e6a5341442df90c85f820a Mon Sep 17 00:00:00 2001
From: sakimisu <1203593632@qq.com>
Date: Wed, 21 Jun 2023 23:30:44 +0800
Subject: [PATCH] remove unused code

---
 class/video/usbh_video.c | 130 ---------------------------------------
 class/video/usbh_video.h |   7 ---
 demo/usb_host.c          | 126 +++++++++++++++++++++++++++++++++++++
 3 files changed, 126 insertions(+), 137 deletions(-)

diff --git a/class/video/usbh_video.c b/class/video/usbh_video.c
index 372b748d..cb1d7de5 100644
--- a/class/video/usbh_video.c
+++ b/class/video/usbh_video.c
@@ -433,132 +433,6 @@ static int usbh_video_streaming_disconnect(struct usbh_hubport *hport, uint8_t i
     return 0;
 }
 
-#if 0
-void usbh_videostreaming_parse_mjpeg(struct usbh_urb *urb, struct usbh_videostreaming *stream)
-{
-    struct usbh_iso_frame_packet *iso_packet;
-    uint32_t num_of_iso_packets;
-    uint8_t data_offset;
-    uint32_t data_len;
-    uint8_t header_len = 0;
-
-    num_of_iso_packets = urb->num_of_iso_packets;
-    iso_packet = urb->iso_packet;
-
-    for (uint32_t i = 0; i < num_of_iso_packets; i++) {
-        /*
-            uint8_t frameIdentifier : 1U;
-            uint8_t endOfFrame      : 1U;
-            uint8_t presentationTimeStamp    : 1U;
-            uint8_t sourceClockReference : 1U;
-            uint8_t reserved             : 1U;
-            uint8_t stillImage           : 1U;
-            uint8_t errorBit             : 1U;
-            uint8_t endOfHeader          : 1U;
-        */
-        if (iso_packet[i].actual_length == 0) { /* skip no data */
-            continue;
-        }
-
-        header_len = iso_packet[i].transfer_buffer[0];
-
-        if ((header_len > 12) || (header_len == 0)) { /* do not be illegal */
-            while (1) {
-            }
-        }
-        if (iso_packet[i].transfer_buffer[1] & (1 << 6)) { /* error bit, re-receive */
-            stream->bufoffset = 0;
-            continue;
-        }
-
-        if ((stream->bufoffset == 0) && ((iso_packet[i].transfer_buffer[header_len] != 0xff) || (iso_packet[i].transfer_buffer[header_len + 1] != 0xd8))) {
-            stream->bufoffset = 0;
-            continue;
-        }
-
-        data_offset = header_len;
-        data_len = iso_packet[i].actual_length - header_len;
-
-        /** do something here */
-
-        stream->bufoffset += data_len;
-
-        if (iso_packet[i].transfer_buffer[1] & (1 << 1)) {
-            if ((iso_packet[i].transfer_buffer[iso_packet[i].actual_length - 2] != 0xff) || (iso_packet[i].transfer_buffer[iso_packet[i].actual_length - 1] != 0xd9)) {
-                stream->bufoffset = 0;
-                continue;
-            }
-
-            /** do something here */
-
-            if (stream->video_one_frame_callback) {
-                stream->video_one_frame_callback(stream);
-            }
-            stream->bufoffset = 0;
-        }
-    }
-    /** do something here */
-}
-
-void usbh_videostreaming_parse_yuyv2(struct usbh_urb *urb, struct usbh_videostreaming *stream)
-{
-    struct usbh_iso_frame_packet *iso_packet;
-    uint32_t num_of_iso_packets;
-    uint8_t data_offset;
-    uint32_t data_len;
-    uint8_t header_len = 0;
-
-    num_of_iso_packets = urb->num_of_iso_packets;
-    iso_packet = urb->iso_packet;
-
-    for (uint32_t i = 0; i < num_of_iso_packets; i++) {
-        /*
-            uint8_t frameIdentifier : 1U;
-            uint8_t endOfFrame      : 1U;
-            uint8_t presentationTimeStamp    : 1U;
-            uint8_t sourceClockReference : 1U;
-            uint8_t reserved             : 1U;
-            uint8_t stillImage           : 1U;
-            uint8_t errorBit             : 1U;
-            uint8_t endOfHeader          : 1U;
-        */
-
-        if (iso_packet[i].actual_length == 0) { /* skip no data */
-            continue;
-        }
-
-        header_len = iso_packet[i].transfer_buffer[0];
-
-        if ((header_len > 12) || (header_len == 0)) { /* do not be illegal */
-            while (1) {
-            }
-        }
-        if (iso_packet[i].transfer_buffer[1] & (1 << 6)) { /* error bit, re-receive */
-            stream->bufoffset = 0;
-            continue;
-        }
-
-        data_offset = header_len;
-        data_len = iso_packet[i].actual_length - header_len;
-
-        /** do something here */
-
-        stream->bufoffset += data_len;
-
-        if (iso_packet[i].transfer_buffer[1] & (1 << 1)) {
-            /** do something here */
-
-            if (stream->video_one_frame_callback && (stream->bufoffset == stream->buflen)) {
-                stream->video_one_frame_callback(stream);
-            }
-            stream->bufoffset = 0;
-        }
-    }
-
-    /** do something here */
-}
-#endif
-
 __WEAK void usbh_video_run(struct usbh_video *video_class)
 {
 }
@@ -567,10 +441,6 @@ __WEAK void usbh_video_stop(struct usbh_video *video_class)
 {
 }
 
-__WEAK void usbh_videostreaming_output(uint8_t *input, uint32_t input_len)
-{
-}
-
 const struct usbh_class_driver video_ctrl_class_driver = {
     .driver_name = "video_ctrl",
     .connect = usbh_video_ctrl_connect,
diff --git a/class/video/usbh_video.h b/class/video/usbh_video.h
index eacfbb3c..a9df365a 100644
--- a/class/video/usbh_video.h
+++ b/class/video/usbh_video.h
@@ -52,9 +52,6 @@ struct usbh_video {
 extern "C" {
 #endif
 
-void usbh_video_inityuyv2rgb_table(void);
-void usbh_video_yuyv2rgb565(void *input, void *output, uint32_t len);
-
 int usbh_video_get_cur(struct usbh_video *video_class, uint8_t intf, uint8_t entity_id, uint8_t cs, uint8_t *buf, uint16_t len);
 int usbh_video_set_cur(struct usbh_video *video_class, uint8_t intf, uint8_t entity_id, uint8_t cs, uint8_t *buf, uint16_t len);
 int usbh_videostreaming_get_cur_probe(struct usbh_video *video_class);
@@ -70,10 +67,6 @@ int usbh_video_close(struct usbh_video *video_class);
 
 void usbh_video_list_info(struct usbh_video *video_class);
 
-void usbh_videostreaming_parse_mjpeg(struct usbh_urb *urb, struct usbh_videostreaming *stream);
-void usbh_videostreaming_parse_yuyv2(struct usbh_urb *urb, struct usbh_videostreaming *stream);
-void usbh_videostreaming_output(uint8_t *input, uint32_t input_len);
-
 void usbh_video_run(struct usbh_video *video_class);
 void usbh_video_stop(struct usbh_video *video_class);
 
diff --git a/demo/usb_host.c b/demo/usb_host.c
index f62670b9..ee842d03 100644
--- a/demo/usb_host.c
+++ b/demo/usb_host.c
@@ -254,6 +254,132 @@ find_class:
 }
 #endif
 
+#if 0
+void usbh_videostreaming_parse_mjpeg(struct usbh_urb *urb, struct usbh_videostreaming *stream)
+{
+    struct usbh_iso_frame_packet *iso_packet;
+    uint32_t num_of_iso_packets;
+    uint8_t data_offset;
+    uint32_t data_len;
+    uint8_t header_len = 0;
+
+    num_of_iso_packets = urb->num_of_iso_packets;
+    iso_packet = urb->iso_packet;
+
+    for (uint32_t i = 0; i < num_of_iso_packets; i++) {
+        /*
+            uint8_t frameIdentifier : 1U;
+            uint8_t endOfFrame      : 1U;
+            uint8_t presentationTimeStamp    : 1U;
+            uint8_t sourceClockReference : 1U;
+            uint8_t reserved             : 1U;
+            uint8_t stillImage           : 1U;
+            uint8_t errorBit             : 1U;
+            uint8_t endOfHeader          : 1U;
+        */
+        if (iso_packet[i].actual_length == 0) { /* skip no data */
+            continue;
+        }
+
+        header_len = iso_packet[i].transfer_buffer[0];
+
+        if ((header_len > 12) || (header_len == 0)) { /* do not be illegal */
+            while (1) {
+            }
+        }
+        if (iso_packet[i].transfer_buffer[1] & (1 << 6)) { /* error bit, re-receive */
+            stream->bufoffset = 0;
+            continue;
+        }
+
+        if ((stream->bufoffset == 0) && ((iso_packet[i].transfer_buffer[header_len] != 0xff) || (iso_packet[i].transfer_buffer[header_len + 1] != 0xd8))) {
+            stream->bufoffset = 0;
+            continue;
+        }
+
+        data_offset = header_len;
+        data_len = iso_packet[i].actual_length - header_len;
+
+        /** do something here */
+
+        stream->bufoffset += data_len;
+
+        if (iso_packet[i].transfer_buffer[1] & (1 << 1)) {
+            if ((iso_packet[i].transfer_buffer[iso_packet[i].actual_length - 2] != 0xff) || (iso_packet[i].transfer_buffer[iso_packet[i].actual_length - 1] != 0xd9)) {
+                stream->bufoffset = 0;
+                continue;
+            }
+
+            /** do something here */
+
+            if (stream->video_one_frame_callback) {
+                stream->video_one_frame_callback(stream);
+            }
+            stream->bufoffset = 0;
+        }
+    }
+    /** do something here */
+}
+
+void usbh_videostreaming_parse_yuyv2(struct usbh_urb *urb, struct usbh_videostreaming *stream)
+{
+    struct usbh_iso_frame_packet *iso_packet;
+    uint32_t num_of_iso_packets;
+    uint8_t data_offset;
+    uint32_t data_len;
+    uint8_t header_len = 0;
+
+    num_of_iso_packets = urb->num_of_iso_packets;
+    iso_packet = urb->iso_packet;
+
+    for (uint32_t i = 0; i < num_of_iso_packets; i++) {
+        /*
+            uint8_t frameIdentifier : 1U;
+            uint8_t endOfFrame      : 1U;
+            uint8_t presentationTimeStamp    : 1U;
+            uint8_t sourceClockReference : 1U;
+            uint8_t reserved             : 1U;
+            uint8_t stillImage           : 1U;
+            uint8_t errorBit             : 1U;
+            uint8_t endOfHeader          : 1U;
+        */
+
+        if (iso_packet[i].actual_length == 0) { /* skip no data */
+            continue;
+        }
+
+        header_len = iso_packet[i].transfer_buffer[0];
+
+        if ((header_len > 12) || (header_len == 0)) { /* do not be illegal */
+            while (1) {
+            }
+        }
+        if (iso_packet[i].transfer_buffer[1] & (1 << 6)) { /* error bit, re-receive */
+            stream->bufoffset = 0;
+            continue;
+        }
+
+        data_offset = header_len;
+        data_len = iso_packet[i].actual_length - header_len;
+
+        /** do something here */
+
+        stream->bufoffset += data_len;
+
+        if (iso_packet[i].transfer_buffer[1] & (1 << 1)) {
+            /** do something here */
+
+            if (stream->video_one_frame_callback && (stream->bufoffset == stream->buflen)) {
+                stream->video_one_frame_callback(stream);
+            }
+            stream->bufoffset = 0;
+        }
+    }
+
+    /** do something here */
+}
+#endif
+
 void usbh_cdc_acm_run(struct usbh_cdc_acm *cdc_acm_class)
 {
 }