X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/86b31030d1c52e4901eef3ffd279ead8bf70895d..69c8952c3d754f6928f9628e6ce4d7de95fa846d:/examples/am7xxx-play.c?ds=inline

diff --git a/examples/am7xxx-play.c b/examples/am7xxx-play.c
index 9961a8e..668c18c 100644
--- 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/>.
  */
 
+/**
+ * @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>
@@ -29,6 +35,13 @@
 
 #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 {
@@ -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;
@@ -547,11 +567,21 @@ 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)
 {
 	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 <input format>\tthe input device format\n");
 	printf("\t-i <input path>\t\tthe input path\n");
 	printf("\t-o <options>\t\ta comma separated list of input format options\n");
@@ -564,8 +594,13 @@ static void usage(char *name)
 	printf("\t\t\t\t\t1 - JPEG\n");
 	printf("\t\t\t\t\t2 - NV12\n");
 	printf("\t-q <quality>\t\tquality of jpeg sent to the device, between 1 and 100\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-l <log level>\t\tthe verbosity level of libam7xxx output (0-5)\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-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);
@@ -587,13 +622,24 @@ 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;
+	int device_index = 0;
 	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, "d:f:i:o:s:uF:q:l:p:z: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':
 			input_format_string = strdup(optarg);
 			break;
@@ -601,6 +647,7 @@ 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 +664,9 @@ 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 +715,12 @@ 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 +730,35 @@ 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 +805,30 @@ int main(int argc, char *argv[])
 		goto out;
 	}
 
-	ret = am7xxx_open_device(ctx, &dev, 0);
+	am7xxx_set_log_level(ctx, log_level);
+
+	ret = am7xxx_open_device(ctx, &dev, device_index);
 	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,