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-rw-r--r--ipedec.c220
-rw-r--r--test/deinterlace.c (renamed from deinterlace.c)0
2 files changed, 0 insertions, 220 deletions
diff --git a/ipedec.c b/ipedec.c
deleted file mode 100644
index 48a1a7a..0000000
--- a/ipedec.c
+++ /dev/null
@@ -1,220 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <assert.h>
-
-#define IPECAMERA_MAX_LINES 1088
-#define IPECAMERA_MAX_CHANNELS 16
-#define IPECAMERA_PIXELS_PER_CHANNEL 128
-#define IPECAMERA_WIDTH (IPECAMERA_MAX_CHANNELS * IPECAMERA_PIXELS_PER_CHANNEL)
-#define IPECAMERA_HEIGHT 1088
-
-int ipecamera_channel_order[IPECAMERA_MAX_CHANNELS] = { 15, 13, 14, 12, 10, 8, 11, 7, 9, 6, 5, 2, 4, 3, 0, 1 };
-
-#define CHECK_VALUE(value, expected) \
- if (value != expected) { \
- fprintf(stderr, "<%s:%i> 0x%x != 0x%x\n", __FILE__, __LINE__, value, expected); \
- err = 1; \
- }
-
-#define CHECK_FLAG(flag, check, ...) \
- if (!(check)) { \
- fprintf(stderr, "<%s:%i> Unexpected value 0x%x of " flag "\n", __FILE__, __LINE__, __VA_ARGS__); \
- err = 1; \
- }
-
-
-static int ipecamera_get_payload(uint16_t *pixel_buffer,
- int line_req, size_t size,
- uint32_t *payload,
- int *advance, int *increase_line)
-{
- int ppw;
- int err = 0;
-
- uint32_t info = payload[0];
- int channel = info & 0x0F; // 4 bits
- int line = (info >> 4) & 0x7FF; // 11 bits
- int bpp = (info >> 16) & 0x0F; // 4 bits
- int pixels = (info >> 20) & 0xFF; // 8 bits
- int header = (info >> 30) & 0x03; // 2 bits
-
- int bytes, pix, pix_offset = 0;
- uint32_t data;
-
- *increase_line = channel == 15 ? 1 : 0;
- channel = ipecamera_channel_order[channel];
-
- CHECK_FLAG("payload header magick", header == 2, header);
- CHECK_FLAG("pixel size, only 10 bits are supported", bpp == 10, bpp);
- CHECK_FLAG("row number, should be %i", line == line_req, line, line_req);
- CHECK_FLAG("channel, limited by %i output channels", channel < IPECAMERA_MAX_CHANNELS, channel, IPECAMERA_MAX_CHANNELS);
-
- if ((line < 2) && (pixels == (IPECAMERA_PIXELS_PER_CHANNEL - 1))) {
- pix_offset = 1;
- pixel_buffer[channel*IPECAMERA_PIXELS_PER_CHANNEL] = 0;
- }
- else
- CHECK_FLAG("number of pixels, %i is expected", pixels == IPECAMERA_PIXELS_PER_CHANNEL, pixels, IPECAMERA_PIXELS_PER_CHANNEL);
-
- bytes = pixels / 3;
- ppw = pixels - bytes * 3;
- if (ppw)
- ++bytes;
-
- CHECK_FLAG("payload data bytes, at least %i are expected", bytes < size, (unsigned int) size, bytes);
-
- if (err)
- return err;
-
- pix = pix_offset;
- for (int i = 1; i < bytes; i++) {
- data = payload[i];
- header = (data >> 30) & 0x03;
-
- CHECK_FLAG("payload data magick", header == 3, header);
- if (err)
- return err;
-
- pixel_buffer[channel*IPECAMERA_PIXELS_PER_CHANNEL + pix++] = (data >> 20) & 0x3FF;
- pixel_buffer[channel*IPECAMERA_PIXELS_PER_CHANNEL + pix++] = (data >> 10) & 0x3FF;
- pixel_buffer[channel*IPECAMERA_PIXELS_PER_CHANNEL + pix++] = data & 0x3FF;
- }
-
- data = payload[bytes];
- header = (data >> 30) & 0x03;
-
- CHECK_FLAG("payload data magick", header == 3, header);
- CHECK_FLAG("payload footer magick", (data&0x3FF) == 0x55, (data&0x3FF));
- if ((err) && ((data & 0x3FF) != 0x55)) {
- err = 0;
- int counter = 0;
- printf(" -> %x\n", data);
- while ((data & 0x3FF) != 0x55) {
- bytes++;
- data = payload[bytes];
- counter++;
- }
- printf("skipped %i bytes: found %x\n", counter, data);
- }
- if (err)
- return err;
-
- ppw = pixels % 3;
- assert(ppw < 3);
-
- for (int j = 0; j < ppw; j++, pix++)
- pixel_buffer[channel*IPECAMERA_PIXELS_PER_CHANNEL + pix] = (data >> (10 * (ppw - j))) & 0x3FF;
-
- *advance = bytes + 1;
- return 0;
-}
-
-static int ipecamera_parse_image(int first_line, int num_lines,
- size_t size, uint32_t *linebuf, int *frames_decoded)
-{
- int err = 0, current_frame = 0;
- int pos = 0, advance, increase_line;
-
- if (size < 16) {
- fprintf(stderr, "The payload is tool small, we should have at least 8 header dwords and 8 footer.");
- return 1;
- }
-
- FILE *fp = fopen("image.dec.raw", "wb");
- uint16_t *pixel_buffer = (uint16_t *) malloc(num_lines * IPECAMERA_WIDTH * sizeof(uint16_t));
-
- printf("Decoding");
- while (size > 0) {
- printf(".");
- int line = first_line;
- CHECK_VALUE(linebuf[pos++], 0x51111111);
- CHECK_VALUE(linebuf[pos++], 0x52222222);
- CHECK_VALUE(linebuf[pos++], 0x53333333);
- CHECK_VALUE(linebuf[pos++], 0x54444444);
- CHECK_VALUE(linebuf[pos++], 0x55555555);
- CHECK_VALUE(linebuf[pos++], 0x56666666);
- CHECK_VALUE(linebuf[pos++], 0x57777777);
- CHECK_VALUE(linebuf[pos++], 0x58888888);
- if (err)
- return err;
-
- size -= 16;
-
- while ((size > 0) && (line < (first_line + num_lines))) {
- err = ipecamera_get_payload(pixel_buffer + line * IPECAMERA_WIDTH,
- line - first_line, size, linebuf + pos, &advance, &increase_line);
- if (err)
- return err;
-
- pos += advance;
- size -= advance;
- line += increase_line;
- }
-
- CHECK_FLAG("lines read, we expect to read exactly %i lines", line == (first_line + num_lines), line - first_line, num_lines);
-
- CHECK_VALUE(linebuf[pos++], 0x0AAAAAAA);
- CHECK_VALUE(linebuf[pos++], 0x0BBBBBBB);
- CHECK_VALUE(linebuf[pos++], 0x0CCCCCCC);
- CHECK_VALUE(linebuf[pos++], 0x0DDDDDDD);
- CHECK_VALUE(linebuf[pos++], 0x0EEEEEEE);
- CHECK_VALUE(linebuf[pos++], 0x0FFFFFFF);
- CHECK_VALUE(linebuf[pos++], 0x00000000);
- CHECK_VALUE(linebuf[pos++], 0x01111111);
-
- fwrite(pixel_buffer, IPECAMERA_WIDTH * num_lines, sizeof(uint16_t), fp);
-
- if (linebuf[pos] == 0)
- break;
-
- current_frame++;
- }
- fclose(fp);
- free(pixel_buffer);
- printf("\n");
- *frames_decoded = current_frame + 1;
- return err;
-}
-
-int main(int argc, char const* argv[])
-{
- if (argc < 3) {
- fprintf(stderr, "Usage: ipedec <filename> <number of lines per frame>\n");
- return 1;
- }
-
- FILE *fp = fopen(argv[1], "rb");
- if (fp == NULL) {
- fprintf(stderr, "Couldn't open file %s", argv[1]);
- return 1;
- }
-
- const int lines_per_frame = atoi(argv[2]);
-
- fseek(fp, 0, SEEK_END);
- const size_t length = ftell(fp);
- rewind(fp);
-
- char *buffer = (char *) malloc(length);
- if (buffer == NULL) {
- fclose(fp);
- return 1;
- }
-
- size_t buffer_length = fread(buffer, 1, length, fp);
- fclose(fp);
- if (buffer_length != length) {
- free(buffer);
- return 1;
- }
-
- int num_frames;
- if (ipecamera_parse_image(0, lines_per_frame, length, (uint32_t *) buffer, &num_frames))
- fprintf(stderr, "Couldn't parse image\n");
-
- printf("Decoded %i frames.\n", num_frames);
- free(buffer);
- return 0;
-}
-
diff --git a/deinterlace.c b/test/deinterlace.c
index 07009dc..07009dc 100644
--- a/deinterlace.c
+++ b/test/deinterlace.c
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 11:02:09 +0000