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support CFG_EXAMPLE_VIDEO_READONLY for stream0 for small mcu

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This commit is contained in:
hathach
2024-04-05 16:12:31 +07:00
parent df1f84adad
commit 5b2441d8a3
2 changed files with 17 additions and 10 deletions
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10
examples/device/video_capture_2ch/src/main.c
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@@ -112,6 +112,8 @@ void tud_resume_cb(void) {
//--------------------------------------------------------------------+
// USB Video
//--------------------------------------------------------------------+
#define FRAMEBUF_SIZE (FRAME_WIDTH * FRAME_HEIGHT * 16 / 8)
static unsigned frame_num[CFG_TUD_VIDEO_STREAMING] = {1};
static unsigned tx_busy = 0;
static unsigned interval_ms[CFG_TUD_VIDEO_STREAMING] = {1000 / FRAME_RATE};
@@ -134,8 +136,8 @@ static struct {
{sizeof(color_bar_7_jpg), color_bar_7_jpg},
};
#if !defined(CFG_EXAMPLE_VIDEO_READONLY)
// YUY2 frame buffer
#define FRAMEBUF_SIZE (FRAME_WIDTH * FRAME_HEIGHT * 16 / 8)
static uint8_t framebuf_yuy2[FRAMEBUF_SIZE];
static void fill_color_bar(uint8_t* buffer, unsigned start_position) {
@@ -174,14 +176,20 @@ static void fill_color_bar(uint8_t* buffer, unsigned start_position) {
p += FRAME_WIDTH * 2;
}
}
#endif
size_t get_framebuf(uint_fast8_t ctl_idx, uint_fast8_t stm_idx, size_t fnum, void **fb) {
uint32_t idx = ctl_idx + stm_idx;
if (idx == 0) {
// stream 0 use uncompressed YUY2 frame
#if defined(CFG_EXAMPLE_VIDEO_READONLY)
*fb = (void*)(uintptr_t ) framebuf_yuy2_readonly[(fnum % (FRAME_WIDTH / 2)) * 4];
#else
fill_color_bar(framebuf_yuy2, frame_num[idx]);
*fb = framebuf_yuy2;
#endif
return FRAMEBUF_SIZE;
}else {
// stream 1 use MJPEG frame