X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/e67e885d8577f6dea5b77eef5ec83071a958318a..759559da7fb9c03e5f42eab12acbc01ebe763186:/examples/picoproj.c?ds=inline
diff --git a/examples/picoproj.c b/examples/picoproj.c
index b643918..9128538 100644
--- a/examples/picoproj.c
+++ b/examples/picoproj.c
@@ -28,6 +28,7 @@
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
+#include <errno.h>
#include "am7xxx.h"
@@ -35,14 +36,17 @@ static void usage(char *name)
{
printf("usage: %s [OPTIONS]\n\n", name);
printf("OPTIONS:\n");
+ printf("\t-d <index>\t\tthe device index (default is 0)\n");
printf("\t-f <filename>\t\tthe image file to upload\n");
printf("\t-F <format>\t\tthe image format to use (default is JPEG)\n");
printf("\t\t\t\tSUPPORTED FORMATS:\n");
printf("\t\t\t\t\t1 - JPEG\n");
printf("\t\t\t\t\t2 - NV12\n");
printf("\t-l <log level>\t\tthe verbosity level of libam7xxx output (0-5)\n");
- printf("\t-p <power level>\tpower level of device, between %x (off) and %x (maximum)\n", AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO);
- printf("\t\t\t\tWARNING: Level 2 and greater require the master AND\n\t\t\t\t\t the slave connector to be plugged in.\n");
+ printf("\t-p <power mode>\t\tthe power mode of device, between %d (off) and %d (turbo)\n",
+ AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO);
+ printf("\t\t\t\tWARNING: Level 2 and greater require the master AND\n");
+ printf("\t\t\t\t the slave connector to be plugged in.\n");
printf("\t-z <zoom mode>\t\tthe display zoom mode, between %d (original) and %d (test)\n",
AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST);
printf("\t-W <image width>\tthe width of the image to upload\n");
@@ -55,7 +59,6 @@ static void usage(char *name)
int main(int argc, char *argv[])
{
int ret;
- int exit_code = EXIT_SUCCESS;
int opt;
char filename[FILENAME_MAX] = {0};
@@ -64,17 +67,26 @@ int main(int argc, char *argv[])
am7xxx_context *ctx;
am7xxx_device *dev;
int log_level = AM7XXX_LOG_INFO;
- am7xxx_power_mode power_mode = AM7XXX_POWER_LOW;
- am7xxx_zoom_mode zoom = AM7XXX_ZOOM_ORIGINAL;
+ int device_index = 0;
+ int power_mode = AM7XXX_POWER_LOW;
+ int zoom = AM7XXX_ZOOM_ORIGINAL;
int format = AM7XXX_IMAGE_FORMAT_JPEG;
int width = 800;
int height = 480;
unsigned char *image;
- unsigned int size;
+ off_t size;
am7xxx_device_info device_info;
- while ((opt = getopt(argc, argv, "f:F:l:p:z:W:H:h")) != -1) {
+ while ((opt = getopt(argc, argv, "d:f:F:l:p:z:W:H:h")) != -1) {
switch (opt) {
+ case 'd':
+ device_index = atoi(optarg);
+ if (device_index < 0) {
+ fprintf(stderr, "Unsupported device index\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ break;
case 'f':
if (filename[0] != '\0')
fprintf(stderr, "Warning: image file already specified\n");
@@ -91,7 +103,8 @@ int main(int argc, char *argv[])
break;
default:
fprintf(stderr, "Unsupported format\n");
- exit(EXIT_FAILURE);
+ ret = -EINVAL;
+ goto out;
}
break;
case 'l':
@@ -109,11 +122,13 @@ int main(int argc, char *argv[])
case AM7XXX_POWER_MIDDLE:
case AM7XXX_POWER_HIGH:
case AM7XXX_POWER_TURBO:
- fprintf(stdout, "Power mode: %x\n", power_mode);
+ fprintf(stdout, "Power mode: %d\n", power_mode);
break;
default:
- fprintf(stderr, "Invalid power mode value, must be between %x and %x\n", AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO);
- exit(EXIT_FAILURE);
+ fprintf(stderr, "Invalid power mode value, must be between %d and %d\n",
+ AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO);
+ ret = -EINVAL;
+ goto out;
}
break;
case 'z':
@@ -128,48 +143,53 @@ int main(int argc, char *argv[])
default:
fprintf(stderr, "Invalid zoom mode value, must be between %d and %d\n",
AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST);
- exit(EXIT_FAILURE);
+ ret = -EINVAL;
+ goto out;
}
break;
case 'W':
width = atoi(optarg);
if (width < 0) {
fprintf(stderr, "Unsupported width\n");
- exit(EXIT_FAILURE);
+ ret = -EINVAL;
+ goto out;
}
break;
case 'H':
height = atoi(optarg);
if (height < 0) {
fprintf(stderr, "Unsupported height\n");
- exit(EXIT_FAILURE);
+ ret = -EINVAL;
+ goto out;
}
break;
case 'h':
usage(argv[0]);
- exit(EXIT_SUCCESS);
- break;
+ ret = 0;
+ goto out;
default: /* '?' */
usage(argv[0]);
- exit(EXIT_FAILURE);
+ ret = -EINVAL;
+ goto out;
}
}
if (filename[0] == '\0') {
- fprintf(stderr, "An image file MUST be specified.\n");
- exit_code = EXIT_FAILURE;
+ fprintf(stderr, "An image file MUST be specified with the -f option.\n\n");
+ usage(argv[0]);
+ ret = -EINVAL;
goto out;
}
image_fp = fopen(filename, "rb");
if (image_fp == NULL) {
perror("fopen");
- exit_code = EXIT_FAILURE;
+ ret = -EINVAL;
goto out;
}
- if (fstat(fileno(image_fp), &st) < 0) {
+ ret = fstat(fileno(image_fp), &st);
+ if (ret < 0) {
perror("fstat");
- exit_code = EXIT_FAILURE;
goto out_close_image_fp;
}
size = st.st_size;
@@ -177,11 +197,11 @@ int main(int argc, char *argv[])
image = malloc(size * sizeof(unsigned char));
if (image == NULL) {
perror("malloc");
- exit_code = EXIT_FAILURE;
+ ret = -ENOMEM;
goto out_close_image_fp;
}
- ret = fread(image, size, 1, image_fp);
+ ret = (int)fread(image, size, 1, image_fp);
if (ret != 1) {
if (feof(image_fp))
fprintf(stderr, "Unexpected end of file.\n");
@@ -190,13 +210,14 @@ int main(int argc, char *argv[])
else
fprintf(stderr, "Unexpected error condition.\n");
+ if (ret >= 0)
+ ret = -EINVAL;
goto out_free_image;
}
ret = am7xxx_init(&ctx);
if (ret < 0) {
perror("am7xxx_init");
- exit_code = EXIT_FAILURE;
goto out_free_image;
}
@@ -205,29 +226,24 @@ int main(int argc, char *argv[])
ret = am7xxx_open_device(ctx, &dev, 0);
if (ret < 0) {
perror("am7xxx_open_device");
- exit_code = EXIT_FAILURE;
goto cleanup;
}
-
ret = am7xxx_close_device(dev);
if (ret < 0) {
perror("am7xxx_close_device");
- exit_code = EXIT_FAILURE;
goto cleanup;
}
- ret = am7xxx_open_device(ctx, &dev, 0);
+ ret = am7xxx_open_device(ctx, &dev, device_index);
if (ret < 0) {
perror("am7xxx_open_device");
- exit_code = EXIT_FAILURE;
goto cleanup;
}
ret = am7xxx_get_device_info(dev, &device_info);
if (ret < 0) {
perror("am7xxx_get_device_info");
- exit_code = EXIT_FAILURE;
goto cleanup;
}
printf("Native resolution: %dx%d\n",
@@ -236,34 +252,34 @@ int main(int argc, char *argv[])
ret = am7xxx_set_zoom_mode(dev, zoom);
if (ret < 0) {
perror("am7xxx_set_zoom_mode");
- exit_code = EXIT_FAILURE;
goto cleanup;
}
ret = am7xxx_set_power_mode(dev, power_mode);
if (ret < 0) {
perror("am7xxx_set_power_mode");
- exit_code = EXIT_FAILURE;
goto cleanup;
}
/* When setting AM7XXX_ZOOM_TEST don't display the actual image */
- if (zoom == AM7XXX_ZOOM_TEST)
+ if (zoom == AM7XXX_ZOOM_TEST) {
+ printf("AM7XXX_ZOOM_TEST requested, not sending actual image.\n");
goto cleanup;
-
+ }
if ((unsigned int)width > device_info.native_width ||
(unsigned int)height > device_info.native_height)
- fprintf(stderr, "WARNING: image not fitting the native resolution, it may be displayed wrongly!\n");
+ fprintf(stderr,
+ "WARNING: image is %dx%d, not fitting the native resolution, it may be displayed wrongly!\n",
+ width, height);
- ret = am7xxx_send_image(dev, format, width, height, image, size);
+ ret = am7xxx_send_image(dev, format, width, height, image, (unsigned int)size);
if (ret < 0) {
perror("am7xxx_send_image");
- exit_code = EXIT_FAILURE;
goto cleanup;
}
- exit_code = EXIT_SUCCESS;
+ ret = 0;
cleanup:
am7xxx_shutdown(ctx);
@@ -272,10 +288,9 @@ out_free_image:
free(image);
out_close_image_fp:
- ret = fclose(image_fp);
- if (ret == EOF)
+ if (fclose(image_fp) == EOF)
perror("fclose");
out:
- exit(exit_code);
+ return ret;
}