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Video class: Changed pararameters of payload request to a dedicated structure in order to meet coding guideliness

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Tobi
2025-10-30 15:01:52 +01:00
parent b8cea4ad76
commit 889cde7d4b
3 changed files with 24 additions and 11 deletions
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10
examples/device/video_capture/src/main.c
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@ -131,25 +131,25 @@ void tud_resume_cb(void) {
#error Demo only supports YUV2 please define CFG_EXAMPLE_VIDEO_DISABLE_MJPEG
#endif
void tud_video_prepare_payload_cb(uint_fast8_t ctl_idx, uint_fast8_t stm_idx, void* payload_buf, size_t payload_size, size_t offset)
void tud_video_prepare_payload_cb(uint_fast8_t ctl_idx, uint_fast8_t stm_idx, tud_video_payload_request_t* request)
{
static uint32_t frame_counter = 0;
(void)ctl_idx;
(void)stm_idx;
/* Offset will be zero at the start of a new frame */
if (!offset) frame_counter++;
if (!request->offset) frame_counter++;
for (size_t buf_pos = 0; buf_pos < payload_size; buf_pos += 2) {
for (size_t buf_pos = 0; buf_pos < request->length; buf_pos += 2) {
/* Position within the current line (pixel relative) */
int line_pos = ((offset + buf_pos)>>1) % FRAME_WIDTH;
int line_pos = ((request->offset + buf_pos)>>1) % FRAME_WIDTH;
/* Choose color based on the position and change the table offset every 4 frames */
const uint8_t* color = bar_color[(line_pos/(FRAME_WIDTH / 8) + (frame_counter>>2)) % 8];
/* Copy pixel data for odd or even pixels */
memcpy(&((uint8_t*)payload_buf)[buf_pos], &color[(line_pos & 1) ? 2 : 0], 2);
memcpy(&((uint8_t*)request->buf)[buf_pos], &color[(line_pos & 1) ? 2 : 0], 2);
}
}