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minor update to video capture example

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This commit is contained in:
hathach
2024-01-25 17:25:48 +07:00
parent de1266699d
commit 0b8b8af83d
5 changed files with 92 additions and 154 deletions
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15
examples/device/video_capture/src/main.c
View File

@@ -131,8 +131,7 @@ static struct {
static uint8_t frame_buffer[FRAME_WIDTH * FRAME_HEIGHT * 16 / 8];
static void fill_color_bar(uint8_t* buffer, unsigned start_position) {
/* EBU color bars
* See also https://stackoverflow.com/questions/6939422 */
/* EBU color bars: https://stackoverflow.com/questions/6939422 */
static uint8_t const bar_color[8][4] = {
/* Y, U, Y, V */
{ 235, 128, 235, 128}, /* 100% White */
@@ -184,12 +183,12 @@ void video_task(void) {
already_sent = 1;
start_ms = board_millis();
#ifdef CFG_EXAMPLE_VIDEO_READONLY
# if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
#if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
tud_video_n_frame_xfer(0, 0, (void*)(uintptr_t)&frame_buffer[(frame_num % (FRAME_WIDTH / 2)) * 4],
FRAME_WIDTH * FRAME_HEIGHT * 16/8);
# else
#else
tud_video_n_frame_xfer(0, 0, (void*)(uintptr_t)frames[frame_num % 8].buffer, frames[frame_num % 8].size);
# endif
#endif
#else
fill_color_bar(frame_buffer, frame_num);
tud_video_n_frame_xfer(0, 0, (void*) frame_buffer, FRAME_WIDTH * FRAME_HEIGHT * 16 / 8);
@@ -202,12 +201,12 @@ void video_task(void) {
start_ms += interval_ms;
#ifdef CFG_EXAMPLE_VIDEO_READONLY
# if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
#if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
tud_video_n_frame_xfer(0, 0, (void*)(uintptr_t)&frame_buffer[(frame_num % (FRAME_WIDTH / 2)) * 4],
FRAME_WIDTH * FRAME_HEIGHT * 16/8);
# else
#else
tud_video_n_frame_xfer(0, 0, (void*)(uintptr_t)frames[frame_num % 8].buffer, frames[frame_num % 8].size);
# endif
#endif
#else
fill_color_bar(frame_buffer, frame_num);
tud_video_n_frame_xfer(0, 0, (void*) frame_buffer, FRAME_WIDTH * FRAME_HEIGHT * 16 / 8);

2
examples/device/video_capture/src/tusb_config.h
View File

@@ -97,7 +97,7 @@
// The number of video streaming interfaces
#define CFG_TUD_VIDEO_STREAMING 1
// video streaming endpoint size
// video streaming endpoint buffer size
#define CFG_TUD_VIDEO_STREAMING_EP_BUFSIZE 256
// use bulk endpoint for streaming interface

69
examples/device/video_capture/src/usb_descriptors.h
View File

@@ -126,23 +126,17 @@ enum {
#define TUD_VIDEO_CAPTURE_DESCRIPTOR_UNCOMPR(_stridx, _epin, _width, _height, _fps, _epsize) \
TUD_VIDEO_DESC_IAD(ITF_NUM_VIDEO_CONTROL, /* 2 Interfaces */ 0x02, _stridx), \
/* Video control 0 */ \
TUD_VIDEO_DESC_STD_VC(ITF_NUM_VIDEO_CONTROL, 0, _stridx), \
TUD_VIDEO_DESC_CS_VC( /* UVC 1.5*/ 0x0150, \
/* wTotalLength - bLength */ \
TUD_VIDEO_DESC_CAMERA_TERM_LEN + TUD_VIDEO_DESC_OUTPUT_TERM_LEN, \
UVC_CLOCK_FREQUENCY, ITF_NUM_VIDEO_STREAMING), \
TUD_VIDEO_DESC_CAMERA_TERM(UVC_ENTITY_CAP_INPUT_TERMINAL, 0, 0,\
/*wObjectiveFocalLengthMin*/0, /*wObjectiveFocalLengthMax*/0,\
/*wObjectiveFocalLength*/0, /*bmControls*/0), \
TUD_VIDEO_DESC_STD_VC(ITF_NUM_VIDEO_CONTROL, 0, _stridx), \
/* Header: UVC 1.5, length of followed descs, clock (deprecated), streaming interfaces */ \
TUD_VIDEO_DESC_CS_VC(0x0150, TUD_VIDEO_DESC_CAMERA_TERM_LEN + TUD_VIDEO_DESC_OUTPUT_TERM_LEN, UVC_CLOCK_FREQUENCY, ITF_NUM_VIDEO_STREAMING), \
/* Camera Terminal: ID, bAssocTerminal, iTerminal, focal min, max, length, bmControl */ \
TUD_VIDEO_DESC_CAMERA_TERM(UVC_ENTITY_CAP_INPUT_TERMINAL, 0, 0, 0, 0, 0, 0), \
TUD_VIDEO_DESC_OUTPUT_TERM(UVC_ENTITY_CAP_OUTPUT_TERMINAL, VIDEO_TT_STREAMING, 0, 1, 0), \
/* Video stream alt. 0 */ \
TUD_VIDEO_DESC_STD_VS(ITF_NUM_VIDEO_STREAMING, 0, 0, _stridx), \
/* Video stream header for without still image capture */ \
TUD_VIDEO_DESC_CS_VS_INPUT( /*bNumFormats*/1, \
/*wTotalLength - bLength */\
TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR_LEN\
+ TUD_VIDEO_DESC_CS_VS_FRM_UNCOMPR_CONT_LEN\
+ TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN,\
/*wTotalLength - bLength */ TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR_LEN + TUD_VIDEO_DESC_CS_VS_FRM_UNCOMPR_CONT_LEN + TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN,\
_epin, /*bmInfo*/0, /*bTerminalLink*/UVC_ENTITY_CAP_OUTPUT_TERMINAL, \
/*bStillCaptureMethod*/0, /*bTriggerSupport*/0, /*bTriggerUsage*/0, \
/*bmaControls(1)*/0), \
@@ -163,23 +157,17 @@ enum {
#define TUD_VIDEO_CAPTURE_DESCRIPTOR_MJPEG(_stridx, _epin, _width, _height, _fps, _epsize) \
TUD_VIDEO_DESC_IAD(ITF_NUM_VIDEO_CONTROL, /* 2 Interfaces */ 0x02, _stridx), \
/* Video control 0 */ \
TUD_VIDEO_DESC_STD_VC(ITF_NUM_VIDEO_CONTROL, 0, _stridx), \
TUD_VIDEO_DESC_CS_VC( /* UVC 1.5*/ 0x0150, \
/* wTotalLength - bLength */ \
TUD_VIDEO_DESC_CAMERA_TERM_LEN + TUD_VIDEO_DESC_OUTPUT_TERM_LEN, \
UVC_CLOCK_FREQUENCY, ITF_NUM_VIDEO_STREAMING), \
TUD_VIDEO_DESC_CAMERA_TERM(UVC_ENTITY_CAP_INPUT_TERMINAL, 0, 0,\
/*wObjectiveFocalLengthMin*/0, /*wObjectiveFocalLengthMax*/0,\
/*wObjectiveFocalLength*/0, /*bmControls*/0), \
TUD_VIDEO_DESC_STD_VC(ITF_NUM_VIDEO_CONTROL, 0, _stridx), \
/* Header: UVC 1.5, length of followed descs, clock (deprecated), streaming interfaces */ \
TUD_VIDEO_DESC_CS_VC(0x0150, TUD_VIDEO_DESC_CAMERA_TERM_LEN + TUD_VIDEO_DESC_OUTPUT_TERM_LEN, UVC_CLOCK_FREQUENCY, ITF_NUM_VIDEO_STREAMING), \
/* Camera Terminal: ID, bAssocTerminal, iTerminal, focal min, max, length, bmControl */ \
TUD_VIDEO_DESC_CAMERA_TERM(UVC_ENTITY_CAP_INPUT_TERMINAL, 0, 0, 0, 0, 0, 0), \
TUD_VIDEO_DESC_OUTPUT_TERM(UVC_ENTITY_CAP_OUTPUT_TERMINAL, VIDEO_TT_STREAMING, 0, 1, 0), \
/* Video stream alt. 0 */ \
TUD_VIDEO_DESC_STD_VS(ITF_NUM_VIDEO_STREAMING, 0, 0, _stridx), \
/* Video stream header for without still image capture */ \
TUD_VIDEO_DESC_CS_VS_INPUT( /*bNumFormats*/1, \
/*wTotalLength - bLength */\
TUD_VIDEO_DESC_CS_VS_FMT_MJPEG_LEN\
+ TUD_VIDEO_DESC_CS_VS_FRM_MJPEG_CONT_LEN\
+ TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN,\
/*wTotalLength - bLength */ TUD_VIDEO_DESC_CS_VS_FMT_MJPEG_LEN + TUD_VIDEO_DESC_CS_VS_FRM_MJPEG_CONT_LEN + TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN,\
_epin, /*bmInfo*/0, /*bTerminalLink*/UVC_ENTITY_CAP_OUTPUT_TERMINAL, \
/*bStillCaptureMethod*/0, /*bTriggerSupport*/0, /*bTriggerUsage*/0, \
/*bmaControls(1)*/0), \
@@ -202,22 +190,17 @@ enum {
TUD_VIDEO_DESC_IAD(ITF_NUM_VIDEO_CONTROL, /* 2 Interfaces */ 0x02, _stridx), \
/* Video control 0 */ \
TUD_VIDEO_DESC_STD_VC(ITF_NUM_VIDEO_CONTROL, 0, _stridx), \
TUD_VIDEO_DESC_CS_VC( /* UVC 1.5*/ 0x0150, \
/* wTotalLength - bLength */ \
TUD_VIDEO_DESC_CAMERA_TERM_LEN + TUD_VIDEO_DESC_OUTPUT_TERM_LEN, \
UVC_CLOCK_FREQUENCY, ITF_NUM_VIDEO_STREAMING), \
TUD_VIDEO_DESC_CAMERA_TERM(UVC_ENTITY_CAP_INPUT_TERMINAL, 0, 0,\
/*wObjectiveFocalLengthMin*/0, /*wObjectiveFocalLengthMax*/0,\
/*wObjectiveFocalLength*/0, /*bmControls*/0), \
/* Header: UVC 1.5, length of followed descs, clock (deprecated), streaming interfaces */ \
TUD_VIDEO_DESC_CS_VC(0x0150, TUD_VIDEO_DESC_CAMERA_TERM_LEN + TUD_VIDEO_DESC_OUTPUT_TERM_LEN, UVC_CLOCK_FREQUENCY, ITF_NUM_VIDEO_STREAMING), \
/* Camera Terminal: ID, bAssocTerminal, iTerminal, focal min, max, length, bmControl */ \
TUD_VIDEO_DESC_CAMERA_TERM(UVC_ENTITY_CAP_INPUT_TERMINAL, 0, 0, 0, 0, 0, 0), \
TUD_VIDEO_DESC_OUTPUT_TERM(UVC_ENTITY_CAP_OUTPUT_TERMINAL, VIDEO_TT_STREAMING, 0, 1, 0), \
/* Video stream alt. 0 */ \
TUD_VIDEO_DESC_STD_VS(ITF_NUM_VIDEO_STREAMING, 0, 1, _stridx), \
/* Video stream header for without still image capture */ \
TUD_VIDEO_DESC_CS_VS_INPUT( /*bNumFormats*/1, \
/*wTotalLength - bLength */\
TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR_LEN\
+ TUD_VIDEO_DESC_CS_VS_FRM_UNCOMPR_CONT_LEN\
+ TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN,\
TUD_VIDEO_DESC_CS_VS_FMT_UNCOMPR_LEN + TUD_VIDEO_DESC_CS_VS_FRM_UNCOMPR_CONT_LEN + TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN,\
_epin, /*bmInfo*/0, /*bTerminalLink*/UVC_ENTITY_CAP_OUTPUT_TERMINAL, \
/*bStillCaptureMethod*/0, /*bTriggerSupport*/0, /*bTriggerUsage*/0, \
/*bmaControls(1)*/0), \
@@ -235,23 +218,17 @@ enum {
#define TUD_VIDEO_CAPTURE_DESCRIPTOR_MJPEG_BULK(_stridx, _epin, _width, _height, _fps, _epsize) \
TUD_VIDEO_DESC_IAD(ITF_NUM_VIDEO_CONTROL, /* 2 Interfaces */ 0x02, _stridx), \
/* Video control 0 */ \
TUD_VIDEO_DESC_STD_VC(ITF_NUM_VIDEO_CONTROL, 0, _stridx), \
TUD_VIDEO_DESC_CS_VC( /* UVC 1.5*/ 0x0150, \
/* wTotalLength - bLength */ \
TUD_VIDEO_DESC_CAMERA_TERM_LEN + TUD_VIDEO_DESC_OUTPUT_TERM_LEN, \
UVC_CLOCK_FREQUENCY, ITF_NUM_VIDEO_STREAMING), \
TUD_VIDEO_DESC_CAMERA_TERM(UVC_ENTITY_CAP_INPUT_TERMINAL, 0, 0,\
/*wObjectiveFocalLengthMin*/0, /*wObjectiveFocalLengthMax*/0,\
/*wObjectiveFocalLength*/0, /*bmControls*/0), \
TUD_VIDEO_DESC_STD_VC(ITF_NUM_VIDEO_CONTROL, 0, _stridx), \
/* Header: UVC 1.5, length of followed descs, clock (deprecated), streaming interfaces */ \
TUD_VIDEO_DESC_CS_VC(0x0150, TUD_VIDEO_DESC_CAMERA_TERM_LEN + TUD_VIDEO_DESC_OUTPUT_TERM_LEN, UVC_CLOCK_FREQUENCY, ITF_NUM_VIDEO_STREAMING), \
/* Camera Terminal: ID, bAssocTerminal, iTerminal, focal min, max, length, bmControl */ \
TUD_VIDEO_DESC_CAMERA_TERM(UVC_ENTITY_CAP_INPUT_TERMINAL, 0, 0, 0, 0, 0, 0), \
TUD_VIDEO_DESC_OUTPUT_TERM(UVC_ENTITY_CAP_OUTPUT_TERMINAL, VIDEO_TT_STREAMING, 0, 1, 0), \
/* Video stream alt. 0 */ \
TUD_VIDEO_DESC_STD_VS(ITF_NUM_VIDEO_STREAMING, 0, 1, _stridx), \
/* Video stream header for without still image capture */ \
TUD_VIDEO_DESC_CS_VS_INPUT( /*bNumFormats*/1, \
/*wTotalLength - bLength */\
TUD_VIDEO_DESC_CS_VS_FMT_MJPEG_LEN\
+ TUD_VIDEO_DESC_CS_VS_FRM_MJPEG_CONT_LEN\
+ TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN,\
/*wTotalLength - bLength */ TUD_VIDEO_DESC_CS_VS_FMT_MJPEG_LEN + TUD_VIDEO_DESC_CS_VS_FRM_MJPEG_CONT_LEN + TUD_VIDEO_DESC_CS_VS_COLOR_MATCHING_LEN,\
_epin, /*bmInfo*/0, /*bTerminalLink*/UVC_ENTITY_CAP_OUTPUT_TERMINAL, \
/*bStillCaptureMethod*/0, /*bTriggerSupport*/0, /*bTriggerUsage*/0, \
/*bmaControls(1)*/0), \