Initial import

This works for streaming mp4 from rtsp. But only to the first client as
it is unable to recognize discrete frames correctly. It needs further
work.

cmd/remux_example/Makefile

@@ -0,0 +1,58 @@
+CC=gcc
+
+# Reviewed warnings for gcc 6.2.1
+CFLAGS = \
+	-std=c11 -g -ggdb -pedantic -pedantic-errors \
+	-Werror -Wall -Wextra \
+	-Wformat=2 \
+	-Wformat-signedness \
+	-Wnull-dereference \
+	-Winit-self \
+	-Wmissing-include-dirs \
+	-Wshift-overflow=2 \
+	-Wswitch-default \
+	-Wswitch-enum \
+	-Wunused-const-variable=2 \
+	-Wuninitialized \
+	-Wunknown-pragmas \
+	-Wstrict-overflow=5 \
+	-Wsuggest-attribute=pure \
+	-Wsuggest-attribute=const \
+	-Wsuggest-attribute=noreturn \
+	-Wsuggest-attribute=format \
+	-Warray-bounds=2 \
+	-Wduplicated-cond \
+	-Wfloat-equal \
+	-Wundef \
+	-Wshadow \
+	-Wbad-function-cast \
+	-Wcast-qual \
+	-Wcast-align \
+	-Wwrite-strings \
+	-Wconversion \
+	-Wjump-misses-init \
+	-Wlogical-op \
+	-Waggregate-return \
+	-Wcast-align \
+	-Wstrict-prototypes \
+	-Wold-style-definition \
+	-Wmissing-prototypes \
+	-Wmissing-declarations \
+	-Wpacked \
+	-Wredundant-decls \
+	-Wnested-externs \
+	-Winline \
+	-Winvalid-pch \
+	-Wstack-protector
+
+TARGETS=remux_example
+
+all: $(TARGETS)
+
+remux_example: remux_example.c \
+	../../videostreamer.c ../../videostreamer.h
+	$(CC) $(CFLAGS) -I../../ -o $@ $< ../../videostreamer.c -lavformat \
+		-lavdevice -lavcodec -lavutil
+
+clean:
+	rm -f $(TARGETS)

cmd/remux_example/remux_example.c

@@ -0,0 +1,49 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include <videostreamer.h>
+
+int main(const int argc, const char * const argv)
+{
+	if (argc != 2) {
+		printf("Usage: %s <rtsp URL>\n", argv[0]);
+		return 1;
+	}
+
+	vs_setup();
+
+	const char * const input_format = "rtsp";
+	const char * const input_url = argv[1];
+	const char * const output_format = "mp4";
+	const char * const output_url = "file:/tmp/out.mp4";
+	const bool verbose = true;
+
+	struct Videostreamer * const vs = vs_open(input_format, input_url,
+			output_format, output_url, verbose);
+	if (!vs) {
+		printf("unable to open videostreamer\n");
+		return 1;
+	}
+
+	const int max_frames = 100;
+	int i = 0;
+
+	while (1) {
+		const int frame_size = vs_read_write(vs, verbose);
+		if (frame_size == -1) {
+			printf("read/write failed\n");
+			vs_destroy(vs);
+			return 1;
+		}
+
+		printf("frame size %d\n", frame_size);
+
+		i++;
+		if (i == max_frames) {
+			break;
+		}
+	}
+
+	vs_destroy(vs);
+
+	return 0;
+}