h4k1m0u · February 14, 2025 22:14
diff --git a/cMakeLists.txt b/cMakeLists.txt
 cmake_minimum_required(VERSION 3.10)
 project(VIDEO)

 # autocomplete with clang in vim
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

 # debug with gdb
 set(CMAKE_BUILD_TYPE Debug)

 # ffmpeg libraries
 find_library(AVFORMAT_LIBRARY avformat)

 # copy video assets folder
 file(COPY assets DESTINATION ${CMAKE_BINARY_DIR})

 # main executable
 add_executable(hello_ffmpeg src/hello_ffmpeg.c)
 target_link_libraries(hello_ffmpeg ${AVFORMAT_LIBRARY})
diff --git a/hello_ffmpeg.c b/hello_ffmpeg.c
 #include <libavformat/avformat.h>

 int main() {
  // open mp4 file & read its header
  AVFormatContext* context = NULL;
  if (avformat_open_input(&context, "assets/video/bbb.mp4", NULL, NULL) != 0) {
    printf("Failed to open stream\n");
  }

  // show video metadata
  printf("Input format name: %s\n", context->iformat->name);
  printf("Duration: %ld microseconds\n", context->duration);
  printf("Number of streams: %d\n", context->nb_streams);

  // free opened context
  avformat_close_input(&context);

  return 0;
 }
diff --git a/HelloFFMpeg.md b/HelloFFMpeg.md
diff --git a/tips.md b/tips.md
	cmake_minimum_required(VERSION 3.10)
	project(VIDEO)

	# autocomplete with clang in vim
	set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

	# debug with gdb
	set(CMAKE_BUILD_TYPE Debug)

	# ffmpeg libraries
	find_library(AVFORMAT_LIBRARY avformat)

	# copy video assets folder
	file(COPY assets DESTINATION ${CMAKE_BINARY_DIR})

	# main executable
	add_executable(hello_ffmpeg src/hello_ffmpeg.c)
	target_link_libraries(hello_ffmpeg ${AVFORMAT_LIBRARY})
	#include <libavformat/avformat.h>

	int main() {
	// open mp4 file & read its header
	AVFormatContext* context = NULL;
	if (avformat_open_input(&context, "assets/video/bbb.mp4", NULL, NULL) != 0) {
	printf("Failed to open stream\n");
	}

	// show video metadata
	printf("Input format name: %s\n", context->iformat->name);
	printf("Duration: %ld microseconds\n", context->duration);
	printf("Number of streams: %d\n", context->nb_streams);

	// free opened context
	avformat_close_input(&context);

	return 0;
	}