mnerv/ffmini
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

FindFFmpeg works on Windows

Browse Source 
The application links with ffmpeg dll and needs a copy of it to works in
the output binary location.
This commit is contained in:
mnerv
2023-09-08 20:37:43 +02:00
parent ae7cf8c566
commit 84c06b59a0
3 changed files with 150 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
CMakeLists.txt
View File

@@ -2,6 +2,7 @@ cmake_minimum_required(VERSION 3.21)
project(ffmini VERSION 0.0.1)
set_property(GLOBAL PROPERTY USE_FOLDERS ON) # Group CMake targets inside a folder
set(CMAKE_EXPORT_COMPILE_COMMANDS ON) # Generate compile_commands.json for language servers
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
include(FetchContent)
FetchContent_Declare(
@@ -24,6 +25,8 @@ FetchContent_Declare(
list(APPEND FETCH_CONTENTS miniaudio)
FetchContent_MakeAvailable(${FETCH_CONTENTS})
find_package(FFmpeg REQUIRED)
# Group dependencies in Visual Studio and Xcode
if (CMAKE_GENERATOR MATCHES "Visual Studio" OR CMAKE_GENERATOR MATCHES "Xcode")
set_target_properties(fmt PROPERTIES FOLDER deps)
@@ -94,7 +97,7 @@ add_executable(ffmini ${HEADER_FILES} ${SOURCE_FILES})
target_include_directories(ffmini
PRIVATE
${PROJECT_SOURCE_DIR}
${PROJECT_SOURCE_DIR}/dsp
${FFMPEG_INCLUDE_DIR}
)
target_compile_definitions(ffmini PRIVATE ${BASE_DEFINITIONS})
target_compile_features(ffmini PRIVATE cxx_std_20)
@@ -103,6 +106,19 @@ target_link_libraries(ffmini
PRIVATE
asio::asio
fmt
miniaudio::miniaudio
${FFMPEG_AVCODEC_LIBRARY}
${FFMPEG_AVDEVICE_LIBRARY}
${FFMPEG_AVFILTER_LIBRARY}
${FFMPEG_AVFORMAT_LIBRARY}
${FFMPEG_AVUTIL_LIBRARY}
)
source_group(TREE "${CMAKE_CURRENT_LIST_DIR}" FILES ${SOURCE_FILES})
#add_custom_command(
# TARGET ffmini # Change this to your actual target name
# POST_BUILD
# COMMAND ${CMAKE_COMMAND} -E copy_directory
# ${FFMPEG_AVCODEC_LIBRARY}
# $<TARGET_FILE_DIR:ffmini> # Copy to the output directory of MyExecutable
#)

69
cmake/FindFFmpeg.cmake
View File

@@ -1 +1,70 @@
find_path(FFMPEG_INCLUDE_DIR
NAMES
libavcodec
libavdevice
libavfilter
libavformat
libavutil
libpostproc
libswresample
libswscale
)
find_library(FFMPEG_AVCODEC_LIBRARY avcodec)
find_library(FFMPEG_AVDEVICE_LIBRARY avdevice)
find_library(FFMPEG_AVFILTER_LIBRARY avfilter)
find_library(FFMPEG_AVFORMAT_LIBRARY avformat)
find_library(FFMPEG_AVUTIL_LIBRARY avutil)
find_library(FFMPEG_POSTPROC_LIBRARY postproc)
find_library(FFMPEG_SWRESAMPLE_LIBRARY swresample)
find_library(FFMPEG_SWSCALE_LIBRARY swscale)
#find_library(FFMPEG_AVCODEC_LIBRARY NAMES "avcodec.lib" "libavcodec.a")
#find_library(FFMPEG_AVDEVICE_LIBRARY NAMES "avdevice.lib" "libavdevice.a")
#find_library(FFMPEG_AVFILTER_LIBRARY NAMES "avfilter.lib" "libavfilter.a")
#find_library(FFMPEG_AVFORMAT_LIBRARY NAMES "avformat.lib" "libavformat.a")
#find_library(FFMPEG_AVUTIL_LIBRARY NAMES "avutil.lib" "libavutil.a")
#find_library(FFMPEG_POSTPROC_LIBRARY NAMES "postproc.lib" "libpostproc.a")
#find_library(FFMPEG_SWRESAMPLE_LIBRARY NAMES "swresample.lib" "libswresample.a")
#find_library(FFMPEG_SWSCALE_LIBRARY NAMES "swscale.lib" "libswscale.a")
if (FFMPEG_INCLUDE_DIR AND
FFMPEG_AVCODEC_LIBRARY AND
FFMPEG_AVDEVICE_LIBRARY AND
FFMPEG_AVFILTER_LIBRARY AND
FFMPEG_AVFORMAT_LIBRARY AND
FFMPEG_AVUTIL_LIBRARY AND
FFMPEG_POSTPROC_LIBRARY AND
FFMPEG_SWRESAMPLE_LIBRARY AND
FFMPEG_SWSCALE_LIBRARY)
set(FFMPEG_FOUND TRUE)
else()
set(FFMPEG_FOUND FALSE)
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(FFmpeg
REQUIRED_VARS
FFMPEG_INCLUDE_DIR
FFMPEG_AVCODEC_LIBRARY
FFMPEG_AVDEVICE_LIBRARY
FFMPEG_AVFILTER_LIBRARY
FFMPEG_AVFORMAT_LIBRARY
FFMPEG_AVUTIL_LIBRARY
FFMPEG_POSTPROC_LIBRARY
FFMPEG_SWRESAMPLE_LIBRARY
FFMPEG_SWSCALE_LIBRARY
)
mark_as_advanced(
FFMPEG_INCLUDE_DIR
FFMPEG_AVCODEC_LIBRARY
FFMPEG_AVDEVICE_LIBRARY
FFMPEG_AVFILTER_LIBRARY
FFMPEG_AVFORMAT_LIBRARY
FFMPEG_AVUTIL_LIBRARY
FFMPEG_POSTPROC_LIBRARY
FFMPEG_SWRESAMPLE_LIBRARY
FFMPEG_SWSCALE_LIBRARY
)

65
ffmini.cpp
View File

@@ -1,7 +1,70 @@
#include "fmt/format.h"
#include "miniaudio.h"
extern "C" {
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libavcodec/avcodec.h"
}
auto callback([[maybe_unused]]ma_device* device, [[maybe_unused]]void* output, [[maybe_unused]]void const* input, [[maybe_unused]]ma_uint32 frame_count) -> void {
}
auto main([[maybe_unused]]int argc, [[maybe_unused]]char const* argv[]) -> int {
fmt::print("Hello, World!\n");
AVFormatContext* format_context = avformat_alloc_context();
if (!format_context) {
fmt::print(stderr, "Failed to create AVFormatContext\n");
return 1;
}
auto const filename = "C:/Users/miku/Downloads/Porter Robinson - Trying to Feel Alive (Official Audio).webm";
if (avformat_open_input(&format_context, filename, nullptr, nullptr) != 0) {
fmt::print(stderr, "Failed to open file {}\n", filename);
return 1;
}
if (avformat_find_stream_info(format_context, nullptr) < 0) {
fmt::print(stderr, "Error loading stream info\n");
return 1;
}
std::int64_t stream_index = -1;
AVCodec const* codec = nullptr;
for (std::uint32_t i = 0; i < format_context->nb_streams; ++i) {
auto* params = format_context->streams[i]->codecpar;
codec = avcodec_find_decoder(params->codec_id);
if (!codec) continue;
if (params->codec_type == AVMEDIA_TYPE_AUDIO) {
stream_index = static_cast<std::int64_t>(i);
}
}
if (stream_index == -1) {
fmt::print(stderr, "Couldn't find valid audio track inside file: {}\n", filename);
return 1;
}
ma_device device;
auto device_config = ma_device_config_init(ma_device_type_playback);
device_config.playback.format = ma_format_f32;
device_config.playback.channels = 2;
device_config.sampleRate = 48000;
device_config.dataCallback = callback;
device_config.pUserData = nullptr;
if (ma_device_init(nullptr, &device_config, &device) != MA_SUCCESS) {
fmt::print(stderr, "Failed to open playback device\n");
return 1;
}
if (ma_device_start(&device) != MA_SUCCESS) {
fmt::print(stderr, "Failed to start playback device.\n");
return 1;
}
ma_device_uninit(&device);
avformat_close_input(&format_context);
avformat_free_context(format_context);
return 0;
}