X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/5003b770a9466d1adefa8bdf4d2cdec1fec333e3..9da43e7f4d027d916e6801c57a2763c45f66fb4c:/examples/am7xxx-play.c

diff --git a/examples/am7xxx-play.c b/examples/am7xxx-play.c
index 6d5d3c7..38812a4 100644
--- a/examples/am7xxx-play.c
+++ b/examples/am7xxx-play.c
@@ -285,9 +285,12 @@ static int am7xxx_play(const char *input_format_string,
 	int out_buf_size;
 	uint8_t *out_buf;
 	int out_picture_size;
+	uint8_t *out_picture;
 	struct SwsContext *sw_scale_ctx;
-	AVPacket packet;
+	AVPacket in_packet;
+	AVPacket out_packet;
 	int got_picture;
+	int got_packet;
 	int ret = 0;
 
 	ret = video_input_init(&input_ctx, input_format_string, input_path, input_options);
@@ -353,7 +356,7 @@ static int am7xxx_play(const char *input_format_string,
 
 	while (run) {
 		/* read packet */
-		ret = av_read_frame(input_ctx.format_ctx, &packet);
+		ret = av_read_frame(input_ctx.format_ctx, &in_packet);
 		if (ret < 0) {
 			if (ret == (int)AVERROR_EOF || input_ctx.format_ctx->pb->eof_reached)
 				ret = 0;
@@ -363,7 +366,7 @@ static int am7xxx_play(const char *input_format_string,
 			goto end_while;
 		}
 
-		if (packet.stream_index != input_ctx.video_stream_index) {
+		if (in_packet.stream_index != input_ctx.video_stream_index) {
 			/* that is more or less a "continue", but there is
 			 * still the packet to free */
 			goto end_while;
@@ -371,7 +374,7 @@ static int am7xxx_play(const char *input_format_string,
 
 		/* decode */
 		got_picture = 0;
-		ret = avcodec_decode_video2(input_ctx.codec_ctx, picture_raw, &got_picture, &packet);
+		ret = avcodec_decode_video2(input_ctx.codec_ctx, picture_raw, &got_picture, &in_packet);
 		if (ret < 0) {
 			fprintf(stderr, "cannot decode video\n");
 			run = 0;
@@ -390,20 +393,26 @@ static int am7xxx_play(const char *input_format_string,
 				  picture_scaled->linesize);
 
 			if (output_ctx.raw_output) {
+				out_picture = out_buf;
 				out_picture_size = out_buf_size;
 			} else {
 				picture_scaled->quality = (output_ctx.codec_ctx)->global_quality;
-				/* TODO: switch to avcodec_encode_video2() eventually */
-				out_picture_size = avcodec_encode_video(output_ctx.codec_ctx,
-									out_buf,
-									out_buf_size,
-									picture_scaled);
-				if (out_picture_size < 0) {
+				av_init_packet(&out_packet);
+				out_packet.data = NULL;
+				out_packet.size = 0;
+				got_packet = 0;
+				ret = avcodec_encode_video2(output_ctx.codec_ctx,
+							    &out_packet,
+							    picture_scaled,
+							    &got_packet);
+				if (ret < 0 || !got_packet) {
 					fprintf(stderr, "cannot encode video\n");
-					ret = out_picture_size;
 					run = 0;
 					goto end_while;
 				}
+
+				out_picture = out_packet.data;
+				out_picture_size = out_packet.size;
 			}
 
 #ifdef DEBUG
@@ -414,7 +423,7 @@ static int am7xxx_play(const char *input_format_string,
 			else
 				snprintf(filename, NAME_MAX, "out.raw");
 			file = fopen(filename, "wb");
-			fwrite(out_buf, 1, out_picture_size, file);
+			fwrite(out_picture, 1, out_picture_size, file);
 			fclose(file);
 #endif
 
@@ -422,7 +431,7 @@ static int am7xxx_play(const char *input_format_string,
 						image_format,
 						(output_ctx.codec_ctx)->width,
 						(output_ctx.codec_ctx)->height,
-						out_buf,
+						out_picture,
 						out_picture_size);
 			if (ret < 0) {
 				perror("am7xxx_send_image");
@@ -431,7 +440,9 @@ static int am7xxx_play(const char *input_format_string,
 			}
 		}
 end_while:
-		av_free_packet(&packet);
+		if (!output_ctx.raw_output)
+			av_free_packet(&out_packet);
+		av_free_packet(&in_packet);
 	}
 
 	sws_freeContext(sw_scale_ctx);
@@ -581,6 +592,7 @@ 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");
@@ -622,14 +634,23 @@ int main(int argc, char *argv[])
 	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:l:p:z:h")) != -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;
@@ -748,7 +769,6 @@ int main(int argc, char *argv[])
 			usage(argv[0]);
 			ret = 0;
 			goto out;
-			break;
 		default: /* '?' */
 			usage(argv[0]);
 			ret = -EINVAL;
@@ -797,7 +817,7 @@ int main(int argc, char *argv[])
 
 	am7xxx_set_log_level(ctx, log_level);
 
-	ret = am7xxx_open_device(ctx, &dev, 0);
+	ret = am7xxx_open_device(ctx, &dev, device_index);
 	if (ret < 0) {
 		perror("am7xxx_open_device");
 		goto cleanup;