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picoproj: support setting the zoom mode
[libam7xxx.git]
/
examples
/
am7xxx-play.c
diff --git
a/examples/am7xxx-play.c
b/examples/am7xxx-play.c
index
5aa53ae
..
324ed89
100644
(file)
--- a/
examples/am7xxx-play.c
+++ b/
examples/am7xxx-play.c
@@
-17,6
+17,12
@@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+/**
+ * @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 <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
@@
-29,6
+35,13
@@
#include <am7xxx.h>
#include <am7xxx.h>
+/* 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 {
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) {
/* 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;
}
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) {
/* 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;
}
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) {
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;
}
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) {
/* 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;
}
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->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
/* When the raw format is requested we don't actually need to setup
* and open a decoder
@@
-290,7
+305,7
@@
static int am7xxx_play(const char *input_format_string,
/* allocate an input frame */
picture_raw = avcodec_alloc_frame();
if (picture_raw == NULL) {
/* 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;
}
ret = -ENOMEM;
goto cleanup_output;
}
@@
-524,6
+539,7
@@
static void unset_run(int signo)
run = 0;
}
run = 0;
}
+#ifdef HAVE_SIGACTION
static int set_signal_handler(void (*signal_handler)(int))
{
struct sigaction new_action;
static int set_signal_handler(void (*signal_handler)(int))
{
struct sigaction new_action;
@@
-551,6
+567,15
@@
static int set_signal_handler(void (*signal_handler)(int))
out:
return ret;
}
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)
{
static void usage(char *name)
{
@@
-598,7
+623,7
@@
int main(int argc, char *argv[])
am7xxx_context *ctx;
am7xxx_device *dev;
am7xxx_context *ctx;
am7xxx_device *dev;
- while ((opt = getopt(argc, argv, "f:i:o:s:uF:q:l:
hp:
")) != -1) {
+ while ((opt = getopt(argc, argv, "f:i:o:s:uF:q:l:
p:h
")) != -1) {
switch (opt) {
case 'f':
input_format_string = strdup(optarg);
switch (opt) {
case 'f':
input_format_string = strdup(optarg);
@@
-607,6
+632,7
@@
int main(int argc, char *argv[])
input_path = strdup(optarg);
break;
case 'o':
input_path = strdup(optarg);
break;
case 'o':
+#ifdef HAVE_STRTOK_R
/*
* parse suboptions, the expected format is something
* like:
/*
* parse suboptions, the expected format is something
* like:
@@
-623,6
+649,9
@@
int main(int argc, char *argv[])
av_dict_set(&options, subopt_name, subopt_value, 0);
}
free(subopts_saved);
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);
break;
case 's':
rescale_method = atoi(optarg);
@@
-678,11
+707,6
@@
int main(int argc, char *argv[])
log_level = AM7XXX_LOG_ERROR;
}
break;
log_level = AM7XXX_LOG_ERROR;
}
break;
- case 'h':
- usage(argv[0]);
- ret = 0;
- goto out;
- break;
case 'p':
power_mode = atoi(optarg);
switch(power_mode) {
case 'p':
power_mode = atoi(optarg);
switch(power_mode) {
@@
-699,6
+723,11
@@
int main(int argc, char *argv[])
goto out;
}
break;
goto out;
}
break;
+ case 'h':
+ usage(argv[0]);
+ ret = 0;
+ goto out;
+ break;
default: /* '?' */
usage(argv[0]);
ret = -EINVAL;
default: /* '?' */
usage(argv[0]);
ret = -EINVAL;