X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/86b31030d1c52e4901eef3ffd279ead8bf70895d..abc5e4d69e40d0edb62d4a084a33dc27f1aa712d:/examples/am7xxx-play.c
diff --git a/examples/am7xxx-play.c b/examples/am7xxx-play.c
index 9961a8e..6d5d3c7 100644
--- a/examples/am7xxx-play.c
+++ b/examples/am7xxx-play.c
@@ -17,6 +17,12 @@
* along with this program. If not, see .
*/
+/**
+ * @example examples/am7xxx-play.c
+ * am7xxx-play uses libavdevice, libavformat, libavcodec and libswscale to
+ * decode the input, encode it to jpeg and display it with libam7xxx.
+ */
+
#include
#include
#include
@@ -29,6 +35,13 @@
#include
+/* On some systems ENOTSUP is not defined, fallback to its value on
+ * linux which is equal to EOPNOTSUPP which is 95
+ */
+#ifndef ENOTSUP
+#define ENOTSUP 95
+#endif
+
static unsigned int run = 1;
struct video_input_ctx {
@@ -84,7 +97,7 @@ static int video_input_init(struct video_input_ctx *input_ctx,
/* get information on the input stream (e.g. format, bitrate, framerate) */
ret = avformat_find_stream_info(input_format_ctx, NULL);
if (ret < 0) {
- fprintf(stderr, "cannot get information on the stream");
+ fprintf(stderr, "cannot get information on the stream\n");
goto cleanup;
}
@@ -115,7 +128,7 @@ static int video_input_init(struct video_input_ctx *input_ctx,
/* find the decoder for the video stream */
input_codec = avcodec_find_decoder(input_codec_ctx->codec_id);
if (input_codec == NULL) {
- fprintf(stderr, "input_codec is NULL!");
+ fprintf(stderr, "input_codec is NULL!\n");
ret = -ENOTSUP;
goto cleanup;
}
@@ -163,7 +176,7 @@ static int video_output_init(struct video_output_ctx *output_ctx,
int ret;
if (input_ctx == NULL) {
- fprintf(stderr, "input_ctx must not be NULL!");
+ fprintf(stderr, "input_ctx must not be NULL!\n");
ret = -EINVAL;
goto out;
}
@@ -171,7 +184,7 @@ static int video_output_init(struct video_output_ctx *output_ctx,
/* create the encoder context */
output_codec_ctx = avcodec_alloc_context3(NULL);
if (output_codec_ctx == NULL) {
- fprintf(stderr, "cannot allocate output codec context!");
+ fprintf(stderr, "cannot allocate output codec context!\n");
ret = -ENOMEM;
goto out;
}
@@ -193,8 +206,10 @@ static int video_output_init(struct video_output_ctx *output_ctx,
output_codec_ctx->bit_rate = (input_ctx->codec_ctx)->bit_rate;
output_codec_ctx->width = new_output_width;
output_codec_ctx->height = new_output_height;
- output_codec_ctx->time_base.num = (input_ctx->codec_ctx)->time_base.num;
- output_codec_ctx->time_base.den = (input_ctx->codec_ctx)->time_base.den;
+ output_codec_ctx->time_base.num =
+ (input_ctx->format_ctx)->streams[input_ctx->video_stream_index]->time_base.num;
+ output_codec_ctx->time_base.den =
+ (input_ctx->format_ctx)->streams[input_ctx->video_stream_index]->time_base.den;
/* When the raw format is requested we don't actually need to setup
* and open a decoder
@@ -290,7 +305,8 @@ static int am7xxx_play(const char *input_format_string,
/* allocate an input frame */
picture_raw = avcodec_alloc_frame();
if (picture_raw == NULL) {
- fprintf(stderr, "cannot allocate the raw picture frame!");
+ fprintf(stderr, "cannot allocate the raw picture frame!\n");
+ ret = -ENOMEM;
goto cleanup_output;
}
@@ -298,6 +314,7 @@ static int am7xxx_play(const char *input_format_string,
picture_scaled = avcodec_alloc_frame();
if (picture_scaled == NULL) {
fprintf(stderr, "cannot allocate the scaled picture!\n");
+ ret = -ENOMEM;
goto cleanup_picture_raw;
}
@@ -308,6 +325,7 @@ static int am7xxx_play(const char *input_format_string,
out_buf = av_malloc(out_buf_size * sizeof(uint8_t));
if (out_buf == NULL) {
fprintf(stderr, "cannot allocate output data buffer!\n");
+ ret = -ENOMEM;
goto cleanup_picture_scaled;
}
@@ -329,6 +347,7 @@ static int am7xxx_play(const char *input_format_string,
NULL, NULL, NULL);
if (sw_scale_ctx == NULL) {
fprintf(stderr, "cannot set up the rescaling context!\n");
+ ret = -EINVAL;
goto cleanup_out_buf;
}
@@ -520,6 +539,7 @@ static void unset_run(int signo)
run = 0;
}
+#ifdef HAVE_SIGACTION
static int set_signal_handler(void (*signal_handler)(int))
{
struct sigaction new_action;
@@ -547,6 +567,15 @@ static int set_signal_handler(void (*signal_handler)(int))
out:
return ret;
}
+#else
+static int set_signal_handler(void (*signal_handler)(int))
+{
+ (void)signal_handler;
+ fprintf(stderr, "set_signal_handler() not implemented, sigaction not available\n");
+ return 0;
+}
+#endif
+
static void usage(char *name)
{
@@ -564,8 +593,13 @@ static void usage(char *name)
printf("\t\t\t\t\t1 - JPEG\n");
printf("\t\t\t\t\t2 - NV12\n");
printf("\t-q \t\tquality of jpeg sent to the device, between 1 and 100\n");
- printf("\t-p \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-l \t\tthe verbosity level of libam7xxx output (0-5)\n");
+ printf("\t-p \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 \t\tthe display zoom mode, between %d (original) and %d (test)\n",
+ AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST);
printf("\t-h \t\t\tthis help message\n");
printf("\n\nEXAMPLES OF USE:\n");
printf("\t%s -f x11grab -i :0.0 -o video_size=800x480\n", name);
@@ -587,12 +621,14 @@ int main(int argc, char *argv[])
unsigned int rescale_method = SWS_BICUBIC;
unsigned int upscale = 0;
unsigned int quality = 95;
+ int log_level = AM7XXX_LOG_INFO;
am7xxx_power_mode power_mode = AM7XXX_POWER_LOW;
+ am7xxx_zoom_mode zoom = AM7XXX_ZOOM_ORIGINAL;
int format = AM7XXX_IMAGE_FORMAT_JPEG;
am7xxx_context *ctx;
am7xxx_device *dev;
- while ((opt = getopt(argc, argv, "f:i:o:s:uF:q:hp:")) != -1) {
+ while ((opt = getopt(argc, argv, "f:i:o:s:uF:q:l:p:z:h")) != -1) {
switch (opt) {
case 'f':
input_format_string = strdup(optarg);
@@ -601,6 +637,7 @@ int main(int argc, char *argv[])
input_path = strdup(optarg);
break;
case 'o':
+#ifdef HAVE_STRTOK_R
/*
* parse suboptions, the expected format is something
* like:
@@ -617,6 +654,9 @@ int main(int argc, char *argv[])
av_dict_set(&options, subopt_name, subopt_value, 0);
}
free(subopts_saved);
+#else
+ fprintf(stderr, "Option '-o' not implemented\n");
+#endif
break;
case 's':
rescale_method = atoi(optarg);
@@ -665,10 +705,12 @@ int main(int argc, char *argv[])
goto out;
}
break;
- case 'h':
- usage(argv[0]);
- ret = 0;
- goto out;
+ case 'l':
+ log_level = atoi(optarg);
+ if (log_level < AM7XXX_LOG_FATAL || log_level > AM7XXX_LOG_TRACE) {
+ fprintf(stderr, "Unsupported log level, falling back to AM7XXX_LOG_ERROR\n");
+ log_level = AM7XXX_LOG_ERROR;
+ }
break;
case 'p':
power_mode = atoi(optarg);
@@ -678,14 +720,35 @@ 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);
+ 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':
+ zoom = atoi(optarg);
+ switch(zoom) {
+ case AM7XXX_ZOOM_ORIGINAL:
+ case AM7XXX_ZOOM_H:
+ case AM7XXX_ZOOM_H_V:
+ case AM7XXX_ZOOM_TEST:
+ fprintf(stdout, "Zoom: %d\n", zoom);
+ break;
+ default:
+ fprintf(stderr, "Invalid zoom mode value, must be between %d and %d\n",
+ AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST);
+ exit(EXIT_FAILURE);
+ }
+ break;
+ case 'h':
+ usage(argv[0]);
+ ret = 0;
+ goto out;
+ break;
default: /* '?' */
usage(argv[0]);
ret = -EINVAL;
@@ -732,18 +795,30 @@ int main(int argc, char *argv[])
goto out;
}
+ am7xxx_set_log_level(ctx, log_level);
+
ret = am7xxx_open_device(ctx, &dev, 0);
if (ret < 0) {
perror("am7xxx_open_device");
goto cleanup;
}
+ ret = am7xxx_set_zoom_mode(dev, zoom);
+ if (ret < 0) {
+ perror("am7xxx_set_zoom_mode");
+ goto cleanup;
+ }
+
ret = am7xxx_set_power_mode(dev, power_mode);
if (ret < 0) {
perror("am7xxx_set_power_mode");
goto cleanup;
}
+ /* When setting AM7XXX_ZOOM_TEST don't display the actual image */
+ if (zoom == AM7XXX_ZOOM_TEST)
+ goto cleanup;
+
ret = am7xxx_play(input_format_string,
&options,
input_path,