update uvc 2ch to stream0 use yuy2, stream1 use mpeg
this help reduce sram requirement for example, also provide different format (uncompressed & mpeg)
This commit is contained in:
@@ -56,8 +56,8 @@ char const* string_desc_arr[] = {
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"TinyUSB", // 1: Manufacturer
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"TinyUSB Device", // 2: Product
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NULL, // 3: Serials will use unique ID if possible
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"TinyUSB UVC Control", // 4: UVC Interface
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"TinyUSB UVC Streaming", // 5: UVC Interface
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"UVC Control", // 4: UVC Interface
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"UVC Streaming", // 5: UVC Interface
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};
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//--------------------------------------------------------------------+
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@@ -1652,18 +1652,11 @@ static const unsigned char frame_buffer[128 * (96 + 1) * 2] = {
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0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80, 0x10, 0x80,
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};
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#else
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#endif
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#if 1
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// mpeg compressed data (not CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
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#define color_bar_0_jpg_len 511
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#define color_bar_1_jpg_len 512
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#define color_bar_2_jpg_len 511
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#define color_bar_3_jpg_len 511
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#define color_bar_4_jpg_len 511
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#define color_bar_5_jpg_len 512
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#define color_bar_6_jpg_len 511
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#define color_bar_7_jpg_len 511
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unsigned char color_bar_0_jpg[] = {
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0xff, 0xd8, 0xff, 0xdb, 0x00, 0x43, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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@@ -1936,4 +1929,7 @@ unsigned char color_bar_7_jpg[] = {
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0x42, 0x51, 0x59, 0x8c, 0xb1, 0x45, 0x00, 0x25, 0x15, 0x98, 0xc4, 0xa2, 0xb5, 0x32, 0x12, 0x8a,
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0xcc, 0x63, 0x68, 0xad, 0x8d, 0x84, 0xa2, 0xb3, 0x18, 0x94, 0x56, 0xa6, 0x47, 0xff, 0xd9
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};
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#endif
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@@ -116,31 +116,27 @@ static unsigned frame_num[CFG_TUD_VIDEO_STREAMING] = {1};
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static unsigned tx_busy = 0;
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static unsigned interval_ms[CFG_TUD_VIDEO_STREAMING] = {1000 / FRAME_RATE};
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#ifdef CFG_EXAMPLE_VIDEO_READONLY
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// For mcus that does not have enough SRAM for frame buffer, we use fixed frame data.
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// To further reduce the size, we use MJPEG format instead of YUY2.
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#include "images.h"
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#if !defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
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static struct {
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uint32_t size;
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uint8_t const *buffer;
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} const frames[] = {
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{color_bar_0_jpg_len, color_bar_0_jpg},
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{color_bar_1_jpg_len, color_bar_1_jpg},
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{color_bar_2_jpg_len, color_bar_2_jpg},
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{color_bar_3_jpg_len, color_bar_3_jpg},
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{color_bar_4_jpg_len, color_bar_4_jpg},
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{color_bar_5_jpg_len, color_bar_5_jpg},
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{color_bar_6_jpg_len, color_bar_6_jpg},
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{color_bar_7_jpg_len, color_bar_7_jpg},
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} const framebuf_mjpeg[] = {
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{sizeof(color_bar_0_jpg), color_bar_0_jpg},
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{sizeof(color_bar_1_jpg), color_bar_1_jpg},
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{sizeof(color_bar_2_jpg), color_bar_2_jpg},
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{sizeof(color_bar_3_jpg), color_bar_3_jpg},
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{sizeof(color_bar_4_jpg), color_bar_4_jpg},
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{sizeof(color_bar_5_jpg), color_bar_5_jpg},
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{sizeof(color_bar_6_jpg), color_bar_6_jpg},
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{sizeof(color_bar_7_jpg), color_bar_7_jpg},
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};
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#endif
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#else
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// YUY2 frame buffer
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static uint8_t frame_buffer[2][FRAME_WIDTH * FRAME_HEIGHT * 16 / 8];
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#define FRAMEBUF_SIZE (FRAME_WIDTH * FRAME_HEIGHT * 16 / 8)
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static uint8_t framebuf_yuy2[FRAMEBUF_SIZE];
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static void fill_color_bar(uint8_t* buffer, unsigned start_position) {
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/* EBU color bars: https://stackoverflow.com/questions/6939422 */
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@@ -179,7 +175,26 @@ static void fill_color_bar(uint8_t* buffer, unsigned start_position) {
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}
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}
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#endif
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size_t get_framebuf(uint_fast8_t ctl_idx, uint_fast8_t stm_idx, size_t fnum, void **fb) {
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uint32_t idx = ctl_idx + stm_idx;
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if (idx == 0) {
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// stream 0 use uncompressed YUY2 frame
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fill_color_bar(framebuf_yuy2, frame_num[idx]);
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*fb = framebuf_yuy2;
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return FRAMEBUF_SIZE;
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}else {
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// stream 1 use MJPEG frame
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size_t const bar_id = fnum & 0x7;
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*fb = (void*)(uintptr_t) framebuf_mjpeg[bar_id].buffer;
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return framebuf_mjpeg[bar_id].size;
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}
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}
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//--------------------------------------------------------------------+
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//
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//--------------------------------------------------------------------+
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void video_send_frame(uint_fast8_t ctl_idx, uint_fast8_t stm_idx) {
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static unsigned start_ms[CFG_TUD_VIDEO_STREAMING] = {0, };
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@@ -191,22 +206,16 @@ void video_send_frame(uint_fast8_t ctl_idx, uint_fast8_t stm_idx) {
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frame_num[idx] = 0;
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return;
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}
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void* fp;
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size_t fb_size;
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if (!(already_sent & (1u << idx))) {
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already_sent |= 1u << idx;
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tx_busy |= 1u << idx;
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start_ms[idx] = board_millis();
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#ifdef CFG_EXAMPLE_VIDEO_READONLY
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#if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
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tud_video_n_frame_xfer(ctl_idx, stm_idx, (void*)(uintptr_t)&frame_buffer[(frame_num[idx] % (FRAME_WIDTH / 2)) * 4],
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FRAME_WIDTH * FRAME_HEIGHT * 16/8);
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#else
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tud_video_n_frame_xfer(ctl_idx, stm_idx, (void*)(uintptr_t)frames[frame_num[idx] % 8].buffer, frames[frame_num[idx] % 8].size);
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#endif
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#else
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fill_color_bar(frame_buffer[idx], frame_num[idx]);
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tud_video_n_frame_xfer(ctl_idx, stm_idx, (void*) frame_buffer[idx], FRAME_WIDTH * FRAME_HEIGHT * 16 / 8);
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#endif
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fb_size = get_framebuf(ctl_idx, stm_idx, frame_num[idx], &fp);
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tud_video_n_frame_xfer(ctl_idx, stm_idx, fp, fb_size);
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}
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unsigned cur = board_millis();
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@@ -215,17 +224,8 @@ void video_send_frame(uint_fast8_t ctl_idx, uint_fast8_t stm_idx) {
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start_ms[idx] += interval_ms[idx];
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tx_busy |= 1u << idx;
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#ifdef CFG_EXAMPLE_VIDEO_READONLY
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#if defined(CFG_EXAMPLE_VIDEO_DISABLE_MJPEG)
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tud_video_n_frame_xfer(ctl_idx, stm_idx, (void*)(uintptr_t)&frame_buffer[(frame_num[idx] % (FRAME_WIDTH / 2)) * 4],
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FRAME_WIDTH * FRAME_HEIGHT * 16/8);
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#else
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tud_video_n_frame_xfer(ctl_idx, stm_idx, (void*)(uintptr_t)frames[frame_num[idx] % 8].buffer, frames[frame_num[idx] % 8].size);
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#endif
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#else
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fill_color_bar(frame_buffer[idx], frame_num[idx]);
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tud_video_n_frame_xfer(ctl_idx, stm_idx, (void*) frame_buffer[idx], FRAME_WIDTH * FRAME_HEIGHT * 16 / 8);
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#endif
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fb_size = get_framebuf(ctl_idx, stm_idx, frame_num[idx], &fp);
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tud_video_n_frame_xfer(ctl_idx, stm_idx, fp, fb_size);
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}
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@@ -58,10 +58,11 @@ char const* string_desc_arr[] = {
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"TinyUSB", // 1: Manufacturer
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"TinyUSB Device", // 2: Product
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NULL, // 3: Serials will use unique ID if possible
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"TinyUSB UVC Control 1", // 4: UVC Interface 1
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"TinyUSB UVC Streaming 1", // 5: UVC Interface 1
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"TinyUSB UVC Control 2", // 6: UVC Interface 2
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"TinyUSB UVC Streaming 2", // 7: UVC Interface 2
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"UVC Control 1", // 4: UVC Interface 1
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"UVC Streaming 1", // 5: UVC Interface 1
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"UVC Control 2", // 6: UVC Interface 2
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"UVC Streaming 2", // 7: UVC Interface 2
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};
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//--------------------------------------------------------------------+
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@@ -140,15 +141,8 @@ typedef struct TU_ATTR_PACKED {
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typedef struct TU_ATTR_PACKED {
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tusb_desc_interface_t itf;
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tusb_desc_video_streaming_input_header_1byte_t header;
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#if USE_MJPEG
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tusb_desc_video_format_mjpeg_t format;
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tusb_desc_video_frame_mjpeg_continuous_t frame;
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#else
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tusb_desc_video_format_uncompressed_t format;
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tusb_desc_video_frame_uncompressed_continuous_t frame;
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#endif
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tusb_desc_video_streaming_color_matching_t color;
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#if USE_ISO_STREAMING
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@@ -157,15 +151,37 @@ typedef struct TU_ATTR_PACKED {
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#endif
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tusb_desc_endpoint_t ep;
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} uvc_streaming_desc_t;
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} uvc_streaming_yuy2_desc_t;
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typedef struct TU_ATTR_PACKED {
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tusb_desc_interface_t itf;
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tusb_desc_video_streaming_input_header_1byte_t header;
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tusb_desc_video_format_mjpeg_t format;
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tusb_desc_video_frame_mjpeg_continuous_t frame;
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tusb_desc_video_streaming_color_matching_t color;
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#if USE_ISO_STREAMING
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// For ISO streaming, USB spec requires to alternate interface
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tusb_desc_interface_t itf_alt;
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#endif
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tusb_desc_endpoint_t ep;
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} uvc_streaming_mpeg_desc_t;
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typedef struct TU_ATTR_PACKED {
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tusb_desc_configuration_t config;
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struct TU_ATTR_PACKED {
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tusb_desc_interface_assoc_t iad;
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uvc_control_desc_t video_control;
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uvc_streaming_desc_t video_streaming;
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} uvc[2];
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uvc_streaming_yuy2_desc_t video_streaming;
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} uvc_yuy2;
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struct TU_ATTR_PACKED {
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tusb_desc_interface_assoc_t iad;
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uvc_control_desc_t video_control;
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uvc_streaming_mpeg_desc_t video_streaming;
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} uvc_mpeg;
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} uvc_cfg_desc_t;
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const uvc_cfg_desc_t desc_fs_configuration = {
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@@ -180,8 +196,8 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.bmAttributes = TU_BIT(7),
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.bMaxPower = 100 / 2
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},
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.uvc = {
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{
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//------------- Stream 0: YUY2 -------------//
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.uvc_yuy2 = {
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.iad = {
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.bLength = sizeof(tusb_desc_interface_assoc_t),
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.bDescriptorType = TUSB_DESC_INTERFACE_ASSOCIATION,
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@@ -193,7 +209,6 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.bFunctionProtocol = VIDEO_ITF_PROTOCOL_UNDEFINED,
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.iFunction = 0
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},
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.video_control = {
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.itf = {
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.bLength = sizeof(tusb_desc_interface_t),
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@@ -216,7 +231,7 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.wTotalLength = sizeof(uvc_control_desc_t) - sizeof(tusb_desc_interface_t), // CS VC descriptors only
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.dwClockFrequency = UVC_CLOCK_FREQUENCY,
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.bInCollection = 1,
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.baInterfaceNr = { ITF_NUM_VIDEO_STREAMING_1 }
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.baInterfaceNr = {ITF_NUM_VIDEO_STREAMING_1}
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},
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.camera_terminal = {
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.bLength = sizeof(tusb_desc_video_control_camera_terminal_t),
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@@ -231,7 +246,7 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.wObjectiveFocalLengthMax = 0,
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.wOcularFocalLength = 0,
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.bControlSize = 3,
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.bmControls = { 0, 0, 0 }
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.bmControls = {0, 0, 0}
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},
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.output_terminal = {
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.bLength = sizeof(tusb_desc_video_control_output_terminal_t),
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@@ -265,8 +280,9 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.bDescriptorSubType = VIDEO_CS_ITF_VS_INPUT_HEADER,
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.bNumFormats = 1,
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.wTotalLength = sizeof(uvc_streaming_desc_t) - sizeof(tusb_desc_interface_t)
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- sizeof(tusb_desc_endpoint_t) - (USE_ISO_STREAMING ? sizeof(tusb_desc_interface_t) : 0) , // CS VS descriptors only
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.wTotalLength = sizeof(uvc_streaming_yuy2_desc_t) - sizeof(tusb_desc_interface_t)
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- sizeof(tusb_desc_endpoint_t) -
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(USE_ISO_STREAMING ? sizeof(tusb_desc_interface_t) : 0), // CS VS descriptors only
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.bEndpointAddress = EPNUM_VIDEO_IN_1,
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.bmInfo = 0,
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.bTerminalLink = UVC_ENTITY_CAP_OUTPUT_TERMINAL,
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@@ -274,25 +290,16 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.bTriggerSupport = 0,
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.bTriggerUsage = 0,
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.bControlSize = 1,
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.bmaControls = { 0 }
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.bmaControls = {0}
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},
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.format = {
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#if USE_MJPEG
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.bLength = sizeof(tusb_desc_video_format_mjpeg_t),
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.bDescriptorType = TUSB_DESC_CS_INTERFACE,
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.bDescriptorSubType = VIDEO_CS_ITF_VS_FORMAT_MJPEG,
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.bFormatIndex = 1, // 1-based index
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.bNumFrameDescriptors = 1,
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.bmFlags = 0,
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#else
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.bLength = sizeof(tusb_desc_video_format_uncompressed_t),
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.bDescriptorType = TUSB_DESC_CS_INTERFACE,
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.bDescriptorSubType = VIDEO_CS_ITF_VS_FORMAT_UNCOMPRESSED,
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.bFormatIndex = 1, // 1-based index
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.bNumFrameDescriptors = 1,
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.guidFormat = { TUD_VIDEO_GUID_YUY2 },
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.guidFormat = {TUD_VIDEO_GUID_YUY2},
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.bBitsPerPixel = 16,
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#endif
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.bDefaultFrameIndex = 1,
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.bAspectRatioX = 0,
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.bAspectRatioY = 0,
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@@ -300,15 +307,9 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.bCopyProtect = 0
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},
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.frame = {
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#if USE_MJPEG
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.bLength = sizeof(tusb_desc_video_frame_mjpeg_continuous_t),
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.bDescriptorType = TUSB_DESC_CS_INTERFACE,
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.bDescriptorSubType = VIDEO_CS_ITF_VS_FRAME_MJPEG,
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#else
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.bLength = sizeof(tusb_desc_video_frame_uncompressed_continuous_t),
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.bDescriptorType = TUSB_DESC_CS_INTERFACE,
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.bDescriptorSubType = VIDEO_CS_ITF_VS_FRAME_UNCOMPRESSED,
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#endif
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.bFrameIndex = 1, // 1-based index
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.bmCapabilities = 0,
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.wWidth = FRAME_WIDTH,
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@@ -348,7 +349,6 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.iInterface = STRID_UVC_STREAMING_1
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},
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#endif
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.ep = {
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.bLength = sizeof(tusb_desc_endpoint_t),
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.bDescriptorType = TUSB_DESC_ENDPOINT,
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@@ -363,7 +363,8 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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}
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}
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},
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{
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//------------- Stream 1: MPEG -------------//
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.uvc_mpeg = {
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.iad = {
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.bLength = sizeof(tusb_desc_interface_assoc_t),
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.bDescriptorType = TUSB_DESC_INTERFACE_ASSOCIATION,
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@@ -447,7 +448,7 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.bDescriptorSubType = VIDEO_CS_ITF_VS_INPUT_HEADER,
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.bNumFormats = 1,
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.wTotalLength = sizeof(uvc_streaming_desc_t) - sizeof(tusb_desc_interface_t)
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.wTotalLength = sizeof(uvc_streaming_mpeg_desc_t) - sizeof(tusb_desc_interface_t)
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- sizeof(tusb_desc_endpoint_t) - (USE_ISO_STREAMING ? sizeof(tusb_desc_interface_t) : 0) , // CS VS descriptors only
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.bEndpointAddress = EPNUM_VIDEO_IN_2,
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.bmInfo = 0,
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@@ -459,22 +460,12 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.bmaControls = { 0 }
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},
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.format = {
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#if USE_MJPEG
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.bLength = sizeof(tusb_desc_video_format_mjpeg_t),
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.bDescriptorType = TUSB_DESC_CS_INTERFACE,
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.bDescriptorSubType = VIDEO_CS_ITF_VS_FORMAT_MJPEG,
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.bFormatIndex = 1, // 1-based index
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.bNumFrameDescriptors = 1,
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.bmFlags = 0,
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#else
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.bLength = sizeof(tusb_desc_video_format_uncompressed_t),
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.bDescriptorType = TUSB_DESC_CS_INTERFACE,
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.bDescriptorSubType = VIDEO_CS_ITF_VS_FORMAT_UNCOMPRESSED,
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.bFormatIndex = 1, // 1-based index
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.bNumFrameDescriptors = 1,
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.guidFormat = { TUD_VIDEO_GUID_YUY2 },
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.bBitsPerPixel = 16,
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#endif
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.bDefaultFrameIndex = 1,
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.bAspectRatioX = 0,
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.bAspectRatioY = 0,
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@@ -482,15 +473,9 @@ const uvc_cfg_desc_t desc_fs_configuration = {
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.bCopyProtect = 0
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},
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.frame = {
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||||
#if USE_MJPEG
|
||||
.bLength = sizeof(tusb_desc_video_frame_mjpeg_continuous_t),
|
||||
.bDescriptorType = TUSB_DESC_CS_INTERFACE,
|
||||
.bDescriptorSubType = VIDEO_CS_ITF_VS_FRAME_MJPEG,
|
||||
#else
|
||||
.bLength = sizeof(tusb_desc_video_frame_uncompressed_continuous_t),
|
||||
.bDescriptorType = TUSB_DESC_CS_INTERFACE,
|
||||
.bDescriptorSubType = VIDEO_CS_ITF_VS_FRAME_UNCOMPRESSED,
|
||||
#endif
|
||||
.bFrameIndex = 1, // 1-based index
|
||||
.bmCapabilities = 0,
|
||||
.wWidth = FRAME_WIDTH,
|
||||
@@ -530,7 +515,6 @@ const uvc_cfg_desc_t desc_fs_configuration = {
|
||||
.iInterface = STRID_UVC_STREAMING_2
|
||||
},
|
||||
#endif
|
||||
|
||||
.ep = {
|
||||
.bLength = sizeof(tusb_desc_endpoint_t),
|
||||
.bDescriptorType = TUSB_DESC_ENDPOINT,
|
||||
@@ -545,7 +529,6 @@ const uvc_cfg_desc_t desc_fs_configuration = {
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
#if TUD_OPT_HIGH_SPEED
|
||||
@@ -558,8 +541,8 @@ static uint8_t * get_hs_configuration_desc(void) {
|
||||
desc_hs_configuration = desc_fs_configuration;
|
||||
// change endpoint bulk size to 512 if bulk streaming
|
||||
if (CFG_TUD_VIDEO_STREAMING_BULK) {
|
||||
desc_hs_configuration.uvc[0].video_streaming.ep.wMaxPacketSize = 512;
|
||||
desc_hs_configuration.uvc[1].video_streaming.ep.wMaxPacketSize = 512;
|
||||
desc_hs_configuration.uvc_yuy2.video_streaming.ep.wMaxPacketSize = 512;
|
||||
desc_hs_configuration.uvc_mpeg.video_streaming.ep.wMaxPacketSize = 512;
|
||||
}
|
||||
}
|
||||
init = true;
|
||||
|
Reference in New Issue
Block a user