Commit cbe79187 authored by 崔华根's avatar 崔华根

初始化工具

parents
# Default ignored files
/shelf/
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# Editor-based HTTP Client requests
/httpRequests/
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/dataSources/
/dataSources.local.xml
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<module classpath="CMake" type="CPP_MODULE" version="4" />
\ No newline at end of file
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
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\ No newline at end of file
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/ffmpegEncodeDemo.iml" filepath="$PROJECT_DIR$/.idea/ffmpegEncodeDemo.iml" />
</modules>
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</project>
\ No newline at end of file
cmake_minimum_required(VERSION 3.26)
project(ffmpegEncodeDemo)
set(CMAKE_CXX_STANDARD 17)
include_directories(/opt/homebrew/Cellar/ffmpeg/7.0.1/include)
link_directories(/opt/homebrew/Cellar/ffmpeg/7.0.1/lib)
add_executable(ffmpegEncodeDemo
command_multi_main.cpp)
target_link_libraries(ffmpegEncodeDemo avformat avcodec avutil avfilter)
\ No newline at end of file
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# if _MSC_VER >= 1400
/* _MSC_FULL_VER = VVRRPPPPP */
# define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 100000)
# else
/* _MSC_FULL_VER = VVRRPPPP */
# define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 10000)
# endif
# endif
# if defined(_MSC_BUILD)
# define COMPILER_VERSION_TWEAK DEC(_MSC_BUILD)
# endif
#elif defined(_ADI_COMPILER)
# define COMPILER_ID "ADSP"
#if defined(__VERSIONNUM__)
/* __VERSIONNUM__ = 0xVVRRPPTT */
# define COMPILER_VERSION_MAJOR DEC(__VERSIONNUM__ >> 24 & 0xFF)
# define COMPILER_VERSION_MINOR DEC(__VERSIONNUM__ >> 16 & 0xFF)
# define COMPILER_VERSION_PATCH DEC(__VERSIONNUM__ >> 8 & 0xFF)
# define COMPILER_VERSION_TWEAK DEC(__VERSIONNUM__ & 0xFF)
#endif
#elif defined(__IAR_SYSTEMS_ICC__) || defined(__IAR_SYSTEMS_ICC)
# define COMPILER_ID "IAR"
# if defined(__VER__) && defined(__ICCARM__)
# define COMPILER_VERSION_MAJOR DEC((__VER__) / 1000000)
# define COMPILER_VERSION_MINOR DEC(((__VER__) / 1000) % 1000)
# define COMPILER_VERSION_PATCH DEC((__VER__) % 1000)
# define COMPILER_VERSION_INTERNAL DEC(__IAR_SYSTEMS_ICC__)
# elif defined(__VER__) && (defined(__ICCAVR__) || defined(__ICCRX__) || defined(__ICCRH850__) || defined(__ICCRL78__) || defined(__ICC430__) || defined(__ICCRISCV__) || defined(__ICCV850__) || defined(__ICC8051__) || defined(__ICCSTM8__))
# define COMPILER_VERSION_MAJOR DEC((__VER__) / 100)
# define COMPILER_VERSION_MINOR DEC((__VER__) - (((__VER__) / 100)*100))
# define COMPILER_VERSION_PATCH DEC(__SUBVERSION__)
# define COMPILER_VERSION_INTERNAL DEC(__IAR_SYSTEMS_ICC__)
# endif
#elif defined(__SDCC_VERSION_MAJOR) || defined(SDCC)
# define COMPILER_ID "SDCC"
# if defined(__SDCC_VERSION_MAJOR)
# define COMPILER_VERSION_MAJOR DEC(__SDCC_VERSION_MAJOR)
# define COMPILER_VERSION_MINOR DEC(__SDCC_VERSION_MINOR)
# define COMPILER_VERSION_PATCH DEC(__SDCC_VERSION_PATCH)
# else
/* SDCC = VRP */
# define COMPILER_VERSION_MAJOR DEC(SDCC/100)
# define COMPILER_VERSION_MINOR DEC(SDCC/10 % 10)
# define COMPILER_VERSION_PATCH DEC(SDCC % 10)
# endif
/* These compilers are either not known or too old to define an
identification macro. Try to identify the platform and guess that
it is the native compiler. */
#elif defined(__hpux) || defined(__hpua)
# define COMPILER_ID "HP"
#else /* unknown compiler */
# define COMPILER_ID ""
#endif
/* Construct the string literal in pieces to prevent the source from
getting matched. Store it in a pointer rather than an array
because some compilers will just produce instructions to fill the
array rather than assigning a pointer to a static array. */
char const* info_compiler = "INFO" ":" "compiler[" COMPILER_ID "]";
#ifdef SIMULATE_ID
char const* info_simulate = "INFO" ":" "simulate[" SIMULATE_ID "]";
#endif
#ifdef __QNXNTO__
char const* qnxnto = "INFO" ":" "qnxnto[]";
#endif
#if defined(__CRAYXT_COMPUTE_LINUX_TARGET)
char const *info_cray = "INFO" ":" "compiler_wrapper[CrayPrgEnv]";
#endif
#define STRINGIFY_HELPER(X) #X
#define STRINGIFY(X) STRINGIFY_HELPER(X)
/* Identify known platforms by name. */
#if defined(__linux) || defined(__linux__) || defined(linux)
# define PLATFORM_ID "Linux"
#elif defined(__MSYS__)
# define PLATFORM_ID "MSYS"
#elif defined(__CYGWIN__)
# define PLATFORM_ID "Cygwin"
#elif defined(__MINGW32__)
# define PLATFORM_ID "MinGW"
#elif defined(__APPLE__)
# define PLATFORM_ID "Darwin"
#elif defined(_WIN32) || defined(__WIN32__) || defined(WIN32)
# define PLATFORM_ID "Windows"
#elif defined(__FreeBSD__) || defined(__FreeBSD)
# define PLATFORM_ID "FreeBSD"
#elif defined(__NetBSD__) || defined(__NetBSD)
# define PLATFORM_ID "NetBSD"
#elif defined(__OpenBSD__) || defined(__OPENBSD)
# define PLATFORM_ID "OpenBSD"
#elif defined(__sun) || defined(sun)
# define PLATFORM_ID "SunOS"
#elif defined(_AIX) || defined(__AIX) || defined(__AIX__) || defined(__aix) || defined(__aix__)
# define PLATFORM_ID "AIX"
#elif defined(__hpux) || defined(__hpux__)
# define PLATFORM_ID "HP-UX"
#elif defined(__HAIKU__)
# define PLATFORM_ID "Haiku"
#elif defined(__BeOS) || defined(__BEOS__) || defined(_BEOS)
# define PLATFORM_ID "BeOS"
#elif defined(__QNX__) || defined(__QNXNTO__)
# define PLATFORM_ID "QNX"
#elif defined(__tru64) || defined(_tru64) || defined(__TRU64__)
# define PLATFORM_ID "Tru64"
#elif defined(__riscos) || defined(__riscos__)
# define PLATFORM_ID "RISCos"
#elif defined(__sinix) || defined(__sinix__) || defined(__SINIX__)
# define PLATFORM_ID "SINIX"
#elif defined(__UNIX_SV__)
# define PLATFORM_ID "UNIX_SV"
#elif defined(__bsdos__)
# define PLATFORM_ID "BSDOS"
#elif defined(_MPRAS) || defined(MPRAS)
# define PLATFORM_ID "MP-RAS"
#elif defined(__osf) || defined(__osf__)
# define PLATFORM_ID "OSF1"
#elif defined(_SCO_SV) || defined(SCO_SV) || defined(sco_sv)
# define PLATFORM_ID "SCO_SV"
#elif defined(__ultrix) || defined(__ultrix__) || defined(_ULTRIX)
# define PLATFORM_ID "ULTRIX"
#elif defined(__XENIX__) || defined(_XENIX) || defined(XENIX)
# define PLATFORM_ID "Xenix"
#elif defined(__WATCOMC__)
# if defined(__LINUX__)
# define PLATFORM_ID "Linux"
# elif defined(__DOS__)
# define PLATFORM_ID "DOS"
# elif defined(__OS2__)
# define PLATFORM_ID "OS2"
# elif defined(__WINDOWS__)
# define PLATFORM_ID "Windows3x"
# elif defined(__VXWORKS__)
# define PLATFORM_ID "VxWorks"
# else /* unknown platform */
# define PLATFORM_ID
# endif
#elif defined(__INTEGRITY)
# if defined(INT_178B)
# define PLATFORM_ID "Integrity178"
# else /* regular Integrity */
# define PLATFORM_ID "Integrity"
# endif
# elif defined(_ADI_COMPILER)
# define PLATFORM_ID "ADSP"
#else /* unknown platform */
# define PLATFORM_ID
#endif
/* For windows compilers MSVC and Intel we can determine
the architecture of the compiler being used. This is because
the compilers do not have flags that can change the architecture,
but rather depend on which compiler is being used
*/
#if defined(_WIN32) && defined(_MSC_VER)
# if defined(_M_IA64)
# define ARCHITECTURE_ID "IA64"
# elif defined(_M_ARM64EC)
# define ARCHITECTURE_ID "ARM64EC"
# elif defined(_M_X64) || defined(_M_AMD64)
# define ARCHITECTURE_ID "x64"
# elif defined(_M_IX86)
# define ARCHITECTURE_ID "X86"
# elif defined(_M_ARM64)
# define ARCHITECTURE_ID "ARM64"
# elif defined(_M_ARM)
# if _M_ARM == 4
# define ARCHITECTURE_ID "ARMV4I"
# elif _M_ARM == 5
# define ARCHITECTURE_ID "ARMV5I"
# else
# define ARCHITECTURE_ID "ARMV" STRINGIFY(_M_ARM)
# endif
# elif defined(_M_MIPS)
# define ARCHITECTURE_ID "MIPS"
# elif defined(_M_SH)
# define ARCHITECTURE_ID "SHx"
# else /* unknown architecture */
# define ARCHITECTURE_ID ""
# endif
#elif defined(__WATCOMC__)
# if defined(_M_I86)
# define ARCHITECTURE_ID "I86"
# elif defined(_M_IX86)
# define ARCHITECTURE_ID "X86"
# else /* unknown architecture */
# define ARCHITECTURE_ID ""
# endif
#elif defined(__IAR_SYSTEMS_ICC__) || defined(__IAR_SYSTEMS_ICC)
# if defined(__ICCARM__)
# define ARCHITECTURE_ID "ARM"
# elif defined(__ICCRX__)
# define ARCHITECTURE_ID "RX"
# elif defined(__ICCRH850__)
# define ARCHITECTURE_ID "RH850"
# elif defined(__ICCRL78__)
# define ARCHITECTURE_ID "RL78"
# elif defined(__ICCRISCV__)
# define ARCHITECTURE_ID "RISCV"
# elif defined(__ICCAVR__)
# define ARCHITECTURE_ID "AVR"
# elif defined(__ICC430__)
# define ARCHITECTURE_ID "MSP430"
# elif defined(__ICCV850__)
# define ARCHITECTURE_ID "V850"
# elif defined(__ICC8051__)
# define ARCHITECTURE_ID "8051"
# elif defined(__ICCSTM8__)
# define ARCHITECTURE_ID "STM8"
# else /* unknown architecture */
# define ARCHITECTURE_ID ""
# endif
#elif defined(__ghs__)
# if defined(__PPC64__)
# define ARCHITECTURE_ID "PPC64"
# elif defined(__ppc__)
# define ARCHITECTURE_ID "PPC"
# elif defined(__ARM__)
# define ARCHITECTURE_ID "ARM"
# elif defined(__x86_64__)
# define ARCHITECTURE_ID "x64"
# elif defined(__i386__)
# define ARCHITECTURE_ID "X86"
# else /* unknown architecture */
# define ARCHITECTURE_ID ""
# endif
#elif defined(__TI_COMPILER_VERSION__)
# if defined(__TI_ARM__)
# define ARCHITECTURE_ID "ARM"
# elif defined(__MSP430__)
# define ARCHITECTURE_ID "MSP430"
# elif defined(__TMS320C28XX__)
# define ARCHITECTURE_ID "TMS320C28x"
# elif defined(__TMS320C6X__) || defined(_TMS320C6X)
# define ARCHITECTURE_ID "TMS320C6x"
# else /* unknown architecture */
# define ARCHITECTURE_ID ""
# endif
# elif defined(__ADSPSHARC__)
# define ARCHITECTURE_ID "SHARC"
# elif defined(__ADSPBLACKFIN__)
# define ARCHITECTURE_ID "Blackfin"
#elif defined(__TASKING__)
# if defined(__CTC__) || defined(__CPTC__)
# define ARCHITECTURE_ID "TriCore"
# elif defined(__CMCS__)
# define ARCHITECTURE_ID "MCS"
# elif defined(__CARM__)
# define ARCHITECTURE_ID "ARM"
# elif defined(__CARC__)
# define ARCHITECTURE_ID "ARC"
# elif defined(__C51__)
# define ARCHITECTURE_ID "8051"
# elif defined(__CPCP__)
# define ARCHITECTURE_ID "PCP"
# else
# define ARCHITECTURE_ID ""
# endif
#else
# define ARCHITECTURE_ID
#endif
/* Convert integer to decimal digit literals. */
#define DEC(n) \
('0' + (((n) / 10000000)%10)), \
('0' + (((n) / 1000000)%10)), \
('0' + (((n) / 100000)%10)), \
('0' + (((n) / 10000)%10)), \
('0' + (((n) / 1000)%10)), \
('0' + (((n) / 100)%10)), \
('0' + (((n) / 10)%10)), \
('0' + ((n) % 10))
/* Convert integer to hex digit literals. */
#define HEX(n) \
('0' + ((n)>>28 & 0xF)), \
('0' + ((n)>>24 & 0xF)), \
('0' + ((n)>>20 & 0xF)), \
('0' + ((n)>>16 & 0xF)), \
('0' + ((n)>>12 & 0xF)), \
('0' + ((n)>>8 & 0xF)), \
('0' + ((n)>>4 & 0xF)), \
('0' + ((n) & 0xF))
/* Construct a string literal encoding the version number. */
#ifdef COMPILER_VERSION
char const* info_version = "INFO" ":" "compiler_version[" COMPILER_VERSION "]";
/* Construct a string literal encoding the version number components. */
#elif defined(COMPILER_VERSION_MAJOR)
char const info_version[] = {
'I', 'N', 'F', 'O', ':',
'c','o','m','p','i','l','e','r','_','v','e','r','s','i','o','n','[',
COMPILER_VERSION_MAJOR,
# ifdef COMPILER_VERSION_MINOR
'.', COMPILER_VERSION_MINOR,
# ifdef COMPILER_VERSION_PATCH
'.', COMPILER_VERSION_PATCH,
# ifdef COMPILER_VERSION_TWEAK
'.', COMPILER_VERSION_TWEAK,
# endif
# endif
# endif
']','\0'};
#endif
/* Construct a string literal encoding the internal version number. */
#ifdef COMPILER_VERSION_INTERNAL
char const info_version_internal[] = {
'I', 'N', 'F', 'O', ':',
'c','o','m','p','i','l','e','r','_','v','e','r','s','i','o','n','_',
'i','n','t','e','r','n','a','l','[',
COMPILER_VERSION_INTERNAL,']','\0'};
#elif defined(COMPILER_VERSION_INTERNAL_STR)
char const* info_version_internal = "INFO" ":" "compiler_version_internal[" COMPILER_VERSION_INTERNAL_STR "]";
#endif
/* Construct a string literal encoding the version number components. */
#ifdef SIMULATE_VERSION_MAJOR
char const info_simulate_version[] = {
'I', 'N', 'F', 'O', ':',
's','i','m','u','l','a','t','e','_','v','e','r','s','i','o','n','[',
SIMULATE_VERSION_MAJOR,
# ifdef SIMULATE_VERSION_MINOR
'.', SIMULATE_VERSION_MINOR,
# ifdef SIMULATE_VERSION_PATCH
'.', SIMULATE_VERSION_PATCH,
# ifdef SIMULATE_VERSION_TWEAK
'.', SIMULATE_VERSION_TWEAK,
# endif
# endif
# endif
']','\0'};
#endif
/* Construct the string literal in pieces to prevent the source from
getting matched. Store it in a pointer rather than an array
because some compilers will just produce instructions to fill the
array rather than assigning a pointer to a static array. */
char const* info_platform = "INFO" ":" "platform[" PLATFORM_ID "]";
char const* info_arch = "INFO" ":" "arch[" ARCHITECTURE_ID "]";
#if !defined(__STDC__) && !defined(__clang__)
# if defined(_MSC_VER) || defined(__ibmxl__) || defined(__IBMC__)
# define C_VERSION "90"
# else
# define C_VERSION
# endif
#elif __STDC_VERSION__ > 201710L
# define C_VERSION "23"
#elif __STDC_VERSION__ >= 201710L
# define C_VERSION "17"
#elif __STDC_VERSION__ >= 201000L
# define C_VERSION "11"
#elif __STDC_VERSION__ >= 199901L
# define C_VERSION "99"
#else
# define C_VERSION "90"
#endif
const char* info_language_standard_default =
"INFO" ":" "standard_default[" C_VERSION "]";
const char* info_language_extensions_default = "INFO" ":" "extensions_default["
#if (defined(__clang__) || defined(__GNUC__) || defined(__xlC__) || \
defined(__TI_COMPILER_VERSION__)) && \
!defined(__STRICT_ANSI__)
"ON"
#else
"OFF"
#endif
"]";
/*--------------------------------------------------------------------------*/
#ifdef ID_VOID_MAIN
void main() {}
#else
# if defined(__CLASSIC_C__)
int main(argc, argv) int argc; char *argv[];
# else
int main(int argc, char* argv[])
# endif
{
int require = 0;
require += info_compiler[argc];
require += info_platform[argc];
require += info_arch[argc];
#ifdef COMPILER_VERSION_MAJOR
require += info_version[argc];
#endif
#ifdef COMPILER_VERSION_INTERNAL
require += info_version_internal[argc];
#endif
#ifdef SIMULATE_ID
require += info_simulate[argc];
#endif
#ifdef SIMULATE_VERSION_MAJOR
require += info_simulate_version[argc];
#endif
#if defined(__CRAYXT_COMPUTE_LINUX_TARGET)
require += info_cray[argc];
#endif
require += info_language_standard_default[argc];
require += info_language_extensions_default[argc];
(void)argv;
return require;
}
#endif
/* This source file must have a .cpp extension so that all C++ compilers
recognize the extension without flags. Borland does not know .cxx for
example. */
#ifndef __cplusplus
# error "A C compiler has been selected for C++."
#endif
#if !defined(__has_include)
/* If the compiler does not have __has_include, pretend the answer is
always no. */
# define __has_include(x) 0
#endif
/* Version number components: V=Version, R=Revision, P=Patch
Version date components: YYYY=Year, MM=Month, DD=Day */
#if defined(__COMO__)
# define COMPILER_ID "Comeau"
/* __COMO_VERSION__ = VRR */
# define COMPILER_VERSION_MAJOR DEC(__COMO_VERSION__ / 100)
# define COMPILER_VERSION_MINOR DEC(__COMO_VERSION__ % 100)
#elif defined(__INTEL_COMPILER) || defined(__ICC)
# define COMPILER_ID "Intel"
# if defined(_MSC_VER)
# define SIMULATE_ID "MSVC"
# endif
# if defined(__GNUC__)
# define SIMULATE_ID "GNU"
# endif
/* __INTEL_COMPILER = VRP prior to 2021, and then VVVV for 2021 and later,
except that a few beta releases use the old format with V=2021. */
# if __INTEL_COMPILER < 2021 || __INTEL_COMPILER == 202110 || __INTEL_COMPILER == 202111
# define COMPILER_VERSION_MAJOR DEC(__INTEL_COMPILER/100)
# define COMPILER_VERSION_MINOR DEC(__INTEL_COMPILER/10 % 10)
# if defined(__INTEL_COMPILER_UPDATE)
# define COMPILER_VERSION_PATCH DEC(__INTEL_COMPILER_UPDATE)
# else
# define COMPILER_VERSION_PATCH DEC(__INTEL_COMPILER % 10)
# endif
# else
# define COMPILER_VERSION_MAJOR DEC(__INTEL_COMPILER)
# define COMPILER_VERSION_MINOR DEC(__INTEL_COMPILER_UPDATE)
/* The third version component from --version is an update index,
but no macro is provided for it. */
# define COMPILER_VERSION_PATCH DEC(0)
# endif
# if defined(__INTEL_COMPILER_BUILD_DATE)
/* __INTEL_COMPILER_BUILD_DATE = YYYYMMDD */
# define COMPILER_VERSION_TWEAK DEC(__INTEL_COMPILER_BUILD_DATE)
# endif
# if defined(_MSC_VER)
/* _MSC_VER = VVRR */
# define SIMULATE_VERSION_MAJOR DEC(_MSC_VER / 100)
# define SIMULATE_VERSION_MINOR DEC(_MSC_VER % 100)
# endif
# if defined(__GNUC__)
# define SIMULATE_VERSION_MAJOR DEC(__GNUC__)
# elif defined(__GNUG__)
# define SIMULATE_VERSION_MAJOR DEC(__GNUG__)
# endif
# if defined(__GNUC_MINOR__)
# define SIMULATE_VERSION_MINOR DEC(__GNUC_MINOR__)
# endif
# if defined(__GNUC_PATCHLEVEL__)
# define SIMULATE_VERSION_PATCH DEC(__GNUC_PATCHLEVEL__)
# endif
#elif (defined(__clang__) && defined(__INTEL_CLANG_COMPILER)) || defined(__INTEL_LLVM_COMPILER)
# define COMPILER_ID "IntelLLVM"
#if defined(_MSC_VER)
# define SIMULATE_ID "MSVC"
#endif
#if defined(__GNUC__)
# define SIMULATE_ID "GNU"
#endif
/* __INTEL_LLVM_COMPILER = VVVVRP prior to 2021.2.0, VVVVRRPP for 2021.2.0 and
* later. Look for 6 digit vs. 8 digit version number to decide encoding.
* VVVV is no smaller than the current year when a version is released.
*/
#if __INTEL_LLVM_COMPILER < 1000000L
# define COMPILER_VERSION_MAJOR DEC(__INTEL_LLVM_COMPILER/100)
# define COMPILER_VERSION_MINOR DEC(__INTEL_LLVM_COMPILER/10 % 10)
# define COMPILER_VERSION_PATCH DEC(__INTEL_LLVM_COMPILER % 10)
#else
# define COMPILER_VERSION_MAJOR DEC(__INTEL_LLVM_COMPILER/10000)
# define COMPILER_VERSION_MINOR DEC(__INTEL_LLVM_COMPILER/100 % 100)
# define COMPILER_VERSION_PATCH DEC(__INTEL_LLVM_COMPILER % 100)
#endif
#if defined(_MSC_VER)
/* _MSC_VER = VVRR */
# define SIMULATE_VERSION_MAJOR DEC(_MSC_VER / 100)
# define SIMULATE_VERSION_MINOR DEC(_MSC_VER % 100)
#endif
#if defined(__GNUC__)
# define SIMULATE_VERSION_MAJOR DEC(__GNUC__)
#elif defined(__GNUG__)
# define SIMULATE_VERSION_MAJOR DEC(__GNUG__)
#endif
#if defined(__GNUC_MINOR__)
# define SIMULATE_VERSION_MINOR DEC(__GNUC_MINOR__)
#endif
#if defined(__GNUC_PATCHLEVEL__)
# define SIMULATE_VERSION_PATCH DEC(__GNUC_PATCHLEVEL__)
#endif
#elif defined(__PATHCC__)
# define COMPILER_ID "PathScale"
# define COMPILER_VERSION_MAJOR DEC(__PATHCC__)
# define COMPILER_VERSION_MINOR DEC(__PATHCC_MINOR__)
# if defined(__PATHCC_PATCHLEVEL__)
# define COMPILER_VERSION_PATCH DEC(__PATHCC_PATCHLEVEL__)
# endif
#elif defined(__BORLANDC__) && defined(__CODEGEARC_VERSION__)
# define COMPILER_ID "Embarcadero"
# define COMPILER_VERSION_MAJOR HEX(__CODEGEARC_VERSION__>>24 & 0x00FF)
# define COMPILER_VERSION_MINOR HEX(__CODEGEARC_VERSION__>>16 & 0x00FF)
# define COMPILER_VERSION_PATCH DEC(__CODEGEARC_VERSION__ & 0xFFFF)
#elif defined(__BORLANDC__)
# define COMPILER_ID "Borland"
/* __BORLANDC__ = 0xVRR */
# define COMPILER_VERSION_MAJOR HEX(__BORLANDC__>>8)
# define COMPILER_VERSION_MINOR HEX(__BORLANDC__ & 0xFF)
#elif defined(__WATCOMC__) && __WATCOMC__ < 1200
# define COMPILER_ID "Watcom"
/* __WATCOMC__ = VVRR */
# define COMPILER_VERSION_MAJOR DEC(__WATCOMC__ / 100)
# define COMPILER_VERSION_MINOR DEC((__WATCOMC__ / 10) % 10)
# if (__WATCOMC__ % 10) > 0
# define COMPILER_VERSION_PATCH DEC(__WATCOMC__ % 10)
# endif
#elif defined(__WATCOMC__)
# define COMPILER_ID "OpenWatcom"
/* __WATCOMC__ = VVRP + 1100 */
# define COMPILER_VERSION_MAJOR DEC((__WATCOMC__ - 1100) / 100)
# define COMPILER_VERSION_MINOR DEC((__WATCOMC__ / 10) % 10)
# if (__WATCOMC__ % 10) > 0
# define COMPILER_VERSION_PATCH DEC(__WATCOMC__ % 10)
# endif
#elif defined(__SUNPRO_CC)
# define COMPILER_ID "SunPro"
# if __SUNPRO_CC >= 0x5100
/* __SUNPRO_CC = 0xVRRP */
# define COMPILER_VERSION_MAJOR HEX(__SUNPRO_CC>>12)
# define COMPILER_VERSION_MINOR HEX(__SUNPRO_CC>>4 & 0xFF)
# define COMPILER_VERSION_PATCH HEX(__SUNPRO_CC & 0xF)
# else
/* __SUNPRO_CC = 0xVRP */
# define COMPILER_VERSION_MAJOR HEX(__SUNPRO_CC>>8)
# define COMPILER_VERSION_MINOR HEX(__SUNPRO_CC>>4 & 0xF)
# define COMPILER_VERSION_PATCH HEX(__SUNPRO_CC & 0xF)
# endif
#elif defined(__HP_aCC)
# define COMPILER_ID "HP"
/* __HP_aCC = VVRRPP */
# define COMPILER_VERSION_MAJOR DEC(__HP_aCC/10000)
# define COMPILER_VERSION_MINOR DEC(__HP_aCC/100 % 100)
# define COMPILER_VERSION_PATCH DEC(__HP_aCC % 100)
#elif defined(__DECCXX)
# define COMPILER_ID "Compaq"
/* __DECCXX_VER = VVRRTPPPP */
# define COMPILER_VERSION_MAJOR DEC(__DECCXX_VER/10000000)
# define COMPILER_VERSION_MINOR DEC(__DECCXX_VER/100000 % 100)
# define COMPILER_VERSION_PATCH DEC(__DECCXX_VER % 10000)
#elif defined(__IBMCPP__) && defined(__COMPILER_VER__)
# define COMPILER_ID "zOS"
/* __IBMCPP__ = VRP */
# define COMPILER_VERSION_MAJOR DEC(__IBMCPP__/100)
# define COMPILER_VERSION_MINOR DEC(__IBMCPP__/10 % 10)
# define COMPILER_VERSION_PATCH DEC(__IBMCPP__ % 10)
#elif defined(__open_xl__) && defined(__clang__)
# define COMPILER_ID "IBMClang"
# define COMPILER_VERSION_MAJOR DEC(__open_xl_version__)
# define COMPILER_VERSION_MINOR DEC(__open_xl_release__)
# define COMPILER_VERSION_PATCH DEC(__open_xl_modification__)
# define COMPILER_VERSION_TWEAK DEC(__open_xl_ptf_fix_level__)
#elif defined(__ibmxl__) && defined(__clang__)
# define COMPILER_ID "XLClang"
# define COMPILER_VERSION_MAJOR DEC(__ibmxl_version__)
# define COMPILER_VERSION_MINOR DEC(__ibmxl_release__)
# define COMPILER_VERSION_PATCH DEC(__ibmxl_modification__)
# define COMPILER_VERSION_TWEAK DEC(__ibmxl_ptf_fix_level__)
#elif defined(__IBMCPP__) && !defined(__COMPILER_VER__) && __IBMCPP__ >= 800
# define COMPILER_ID "XL"
/* __IBMCPP__ = VRP */
# define COMPILER_VERSION_MAJOR DEC(__IBMCPP__/100)
# define COMPILER_VERSION_MINOR DEC(__IBMCPP__/10 % 10)
# define COMPILER_VERSION_PATCH DEC(__IBMCPP__ % 10)
#elif defined(__IBMCPP__) && !defined(__COMPILER_VER__) && __IBMCPP__ < 800
# define COMPILER_ID "VisualAge"
/* __IBMCPP__ = VRP */
# define COMPILER_VERSION_MAJOR DEC(__IBMCPP__/100)
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('0' + (((n) / 100)%10)), \
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('0' + ((n)>>28 & 0xF)), \
('0' + ((n)>>24 & 0xF)), \
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']','\0'};
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"OFF"
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require += info_platform[argc];
require += info_arch[argc];
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require += info_version[argc];
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#ifdef COMPILER_VERSION_INTERNAL
require += info_version_internal[argc];
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require += info_simulate[argc];
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require += info_simulate_version[argc];
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require += info_cray[argc];
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require += info_language_standard_default[argc];
require += info_language_extensions_default[argc];
(void)argv;
return require;
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---
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kind: "message-v1"
backtrace:
- "/Applications/CLion.app/Contents/bin/cmake/mac/share/cmake-3.26/Modules/CMakeDetermineSystem.cmake:204 (message)"
- "CMakeLists.txt:2 (project)"
message: |
The system is: Darwin - 23.2.0 - arm64
-
kind: "message-v1"
backtrace:
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- "/Applications/CLion.app/Contents/bin/cmake/mac/share/cmake-3.26/Modules/CMakeDetermineCompilerId.cmake:64 (__determine_compiler_id_test)"
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- "CMakeLists.txt:2 (project)"
message: |
Compiling the C compiler identification source file "CMakeCCompilerId.c" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
Build flags:
Id flags:
The output was:
1
ld: library 'System' not found
clang: error: linker command failed with exit code 1 (use -v to see invocation)
-
kind: "message-v1"
backtrace:
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- "/Applications/CLion.app/Contents/bin/cmake/mac/share/cmake-3.26/Modules/CMakeDetermineCompilerId.cmake:64 (__determine_compiler_id_test)"
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message: |
Compiling the C compiler identification source file "CMakeCCompilerId.c" succeeded.
Compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
Build flags:
Id flags: -c
The output was:
0
Compilation of the C compiler identification source "CMakeCCompilerId.c" produced "CMakeCCompilerId.o"
The C compiler identification is AppleClang, found in:
/Users/gengen/git/ffmpegEncodeDemo/cmake-build-debug/CMakeFiles/3.26.4/CompilerIdC/CMakeCCompilerId.o
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kind: "message-v1"
backtrace:
- "/Applications/CLion.app/Contents/bin/cmake/mac/share/cmake-3.26/Modules/CMakeDetermineCompilerId.cmake:17 (message)"
- "/Applications/CLion.app/Contents/bin/cmake/mac/share/cmake-3.26/Modules/CMakeDetermineCompilerId.cmake:64 (__determine_compiler_id_test)"
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- "CMakeLists.txt:2 (project)"
message: |
Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
Build flags:
Id flags:
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//
// Created by 崔华根 on 2024/6/14.
//
#include <iostream>
extern "C" {
#include <libavformat/avformat.h>
}
#include <string>
#include <cstdlib>
int main() {
std::string filename = "video";
std::string inputPath ="/Users/gengen/Downloads/material-design/"+filename+".mp4";
std::string outputPath_hvc ="/Users/gengen/Downloads/material-design/out/"+filename+"_hvc_out.mp4";
std::string outputPath_hevc ="/Users/gengen/Downloads/material-design/out/"+filename+"_hevc_out.mp4";
std::string ffmpeg_hvc_cmd = "ffmpeg -i "+inputPath+" -vf \"fps=30\" -g 30 -c:v libx264 -c:a copy -y "+outputPath_hvc;
int result1 = std::system(ffmpeg_hvc_cmd.data());
if (result1 != 0) {
// 处理错误
}
std::string ffmpeg_hevc_cmd = "ffmpeg -i "+inputPath+" -vf \"fps=30\" -g 30 -c:v libx265 -c:a copy -y "+outputPath_hevc;
int result2 = std::system(ffmpeg_hevc_cmd.data());
if (result2 != 0) {
// 处理错误
}
// avformat_close_input(&pFormatContext);
return 0;
}
\ No newline at end of file
//
// Created by 崔华根 on 2024/6/17.
//
#include <filesystem>
#include <string>
#include <iostream>
#include <cstdio>
#include <fstream>
#include <array>
std::string exec(const char* cmd) {
std::array<char, 128> buffer;
std::string result;
std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd, "r"), pclose);
if (!pipe) {
throw std::runtime_error("popen() failed!");
}
while (fgets(buffer.data(), buffer.size(), pipe.get()) != nullptr) {
result += buffer.data();
}
return result;
}
void writeFile(const std::string &filename, const std::string &content) {
// 创建并打开文件,使用 trunc 模式来清空文件
std::ofstream file(filename, std::ofstream::out | std::ofstream::trunc);
// 检查文件是否成功打开
if (!file) {
std::cerr << "Failed to open " << filename << std::endl;
return;
}
// 将内容写入文件
file << content;
// 关闭文件
file.close();
}
std::string ReplaceAll(std::string str,
const std::string& from,
const std::string& to) {
size_t startPos = 0;
while((startPos = str.find(from, startPos)) != std::string::npos) {
str.replace(startPos, from.length(), to);
startPos += to.length(); // Handles case where 'to' is a substring of 'from'
}
return str;
}
void copyFile(std::string sourceFile, std::string destinationFile) {
std::ifstream src(sourceFile, std::ios::binary);
std::ofstream dst(destinationFile, std::ios::binary);
dst << src.rdbuf();
}
void transferCmd(std::string inputFilePath,std::string outputDir,std::string originFileName, int fps, int gop,std::string coder) {
std::string outputFilePath = outputDir+"out_"+originFileName;
if (fps>=0) {
outputFilePath.append("_").append("fps").append(std::to_string(fps));
}
if (gop>=0) {
outputFilePath.append("_").append("gop").append(std::to_string(gop));
}
if (!coder.empty()) {
outputFilePath.append("_").append(coder);
}
outputFilePath.append(".mp4");
std::cout<<"outputFilePath:"<<outputFilePath<<std::endl;
// std::string ffmpeg_cmd = "ffmpeg -i "+inputFilePath+" -vf \"fps=30\" -g 30 -c:v libx264 -c:a copy -y "+outputFilePath;
std::string ffmpeg_cmd;
ffmpeg_cmd.append("ffmpeg -i ");
ffmpeg_cmd.append(inputFilePath);
ffmpeg_cmd.append(" ");
if (fps>=0) {
ffmpeg_cmd.append("-vf ");
ffmpeg_cmd.append("\"fps=");
ffmpeg_cmd.append(std::to_string(fps));
ffmpeg_cmd.append("\" ");
}
if (gop>=0){
ffmpeg_cmd.append("-g ");
ffmpeg_cmd.append(std::to_string(30));
ffmpeg_cmd.append(" ");
}
if (coder.empty()) {
if (fps>=0 || gop>=0){
}else {
ffmpeg_cmd.append("-c:v ");
ffmpeg_cmd.append("copy");
}
} else {
ffmpeg_cmd.append("-c:v ");
ffmpeg_cmd.append("lib");
ffmpeg_cmd.append(coder);
}
ffmpeg_cmd.append(" ");
ffmpeg_cmd.append("-c:a copy -y ");
ffmpeg_cmd.append(outputFilePath);
std::cout<<"ffmpeg_cmd:"<<ffmpeg_cmd<<std::endl;
int result = std::system(ffmpeg_cmd.data());
if (result != 0) {
// 处理错误
}
}
int main() {
std::string inputDir ="/Users/gengen/Downloads/material-design/";
std::string outputDir="/Users/gengen/Downloads/material-design-out/";
// 创建文件夹
std::filesystem::path dirPath(outputDir);
if (!std::filesystem::create_directory(outputDir)) {
std::cout << "Failed to create directory."<<outputDir<<std::endl;
// return 1;
}
int index =0;
for (const auto &entry : std::filesystem::directory_iterator(inputDir)) {
// std::cout << entry.path().filename().string() << std::endl;
if (index>0) {
break;
}
std::string inputPath = entry.path();
std::cout<<" input:"<<inputPath<<std::endl;
std::string fileName = entry.path().filename();
std::cout<<" fileName:"<<inputPath<<std::endl;
std::string newFileName=fileName;
newFileName=ReplaceAll(newFileName,".mp4","");
newFileName=ReplaceAll(newFileName,".MP4","");
newFileName=ReplaceAll(newFileName,".mov","");
newFileName=ReplaceAll(newFileName,".MOV","");
std::cout<<" newFileName:"<<newFileName<<std::endl;
outputDir.append(newFileName).append("/");
if (!std::filesystem::create_directory(outputDir)) {
std::cout << "Failed to create directory."<<outputDir<<std::endl;
// return 1;
}
std::string fileTextName =newFileName+".txt";
std::string fileInfoPath = outputDir+fileTextName;
std::cout<<" fileInfoPath:"<<fileInfoPath<<std::endl;
std::string cmd = "ffprobe -v 0 -of csv=p=0 -select_streams v:0 -show_entries stream=r_frame_rate "+inputPath;
std::string result = exec(cmd.c_str());
std::string cmd2="ffprobe -v 0 -select_streams v:0 -show_entries frame=best_effort_timestamp_time,pict_type -of csv=p=0 "+inputPath+" | grep -e 'I'";
std::string result2 = exec(cmd2.c_str());
// std::cout << "I帧间隔= "<<result2<<std::endl;
std::string finalResult = +"frame rate= "+result+"\n"+"I帧间隔= \n"+result2;
writeFile(fileInfoPath,finalResult);
//3. 复制源文件到输出文件夹
std::string outputOriginFile =outputDir+fileName;
std::cout<<" outputOriginFile:"<<inputPath<<std::endl;
copyFile(inputPath,outputOriginFile);
transferCmd(inputPath,outputDir,newFileName,-1,-1,"");
transferCmd(inputPath,outputDir,newFileName,-1,30,"");
transferCmd(inputPath,outputDir,newFileName,-1,30,"x264");
transferCmd(inputPath,outputDir,newFileName,-1,30,"x265");
transferCmd(inputPath,outputDir,newFileName,30,30,"");
transferCmd(inputPath,outputDir,newFileName,30,30,"x264");
transferCmd(inputPath,outputDir,newFileName,30,30,"x265");
index++;
}
std::cout<<"end of work"<<std::endl;
return 0;
}
\ No newline at end of file
#include <iostream>
extern "C" {
#include <libavformat/avformat.h>
}
#include <string>
int main() {
std::cout << "Hello, World!" << std::endl;
AVFormatContext *pFormatContext = avformat_alloc_context();
std::string path ="/Users/gengen/Downloads/material-design/m1.mp4";
if(avformat_open_input(&pFormatContext, path.data(), NULL, NULL) != 0) {
std::cout << "open error" << std::endl;
return -1; // Couldn't open file
}
if (avformat_find_stream_info(pFormatContext, NULL) < 0) {
return -1; // Couldn't find stream information
}
av_dump_format(pFormatContext, 0, path.data(), 0);
// avformat_close_input(&pFormatContext);
return 0;
}
//
// Created by 崔华根 on 2024/6/13.
//
/*
* Copyright (c) 2010 Nicolas George
* Copyright (c) 2011 Stefano Sabatini
* Copyright (c) 2014 Andrey Utkin
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/**
* @file demuxing, decoding, filtering, encoding and muxing API usage example
* @example transcode.c
*
* Convert input to output file, applying some hard-coded filter-graph on both
* audio and video streams.
*/
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavfilter/buffersink.h>
#include <libavfilter/buffersrc.h>
#include <libavutil/channel_layout.h>
#include <libavutil/mem.h>
#include <libavutil/opt.h>
#include <libavutil/pixdesc.h>
}
#include <string>
static AVFormatContext *ifmt_ctx;
static AVFormatContext *ofmt_ctx;
typedef struct FilteringContext {
AVFilterContext *buffersink_ctx;
AVFilterContext *buffersrc_ctx;
AVFilterGraph *filter_graph;
AVPacket *enc_pkt;
AVFrame *filtered_frame;
} FilteringContext;
static FilteringContext *filter_ctx;
typedef struct StreamContext {
AVCodecContext *dec_ctx;
AVCodecContext *enc_ctx;
AVFrame *dec_frame;
} StreamContext;
static StreamContext *stream_ctx;
static int open_input_file(const char *filename)
{
int ret;
unsigned int i;
ifmt_ctx = NULL;
if ((ret = avformat_open_input(&ifmt_ctx, filename, NULL, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot open input file\n");
return ret;
}
if ((ret = avformat_find_stream_info(ifmt_ctx, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
return ret;
}
av_dump_format(ifmt_ctx, 0, filename, 0);
stream_ctx = static_cast<StreamContext *>( av_calloc(ifmt_ctx->nb_streams, sizeof(*stream_ctx)));
if (!stream_ctx)
return AVERROR(ENOMEM);
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
AVStream *stream = ifmt_ctx->streams[i];
const AVCodec *dec = avcodec_find_decoder(stream->codecpar->codec_id);
AVCodecContext *codec_ctx;
if (!dec) {
av_log(NULL, AV_LOG_ERROR, "Failed to find decoder for stream #%u\n", i);
return AVERROR_DECODER_NOT_FOUND;
}
codec_ctx = avcodec_alloc_context3(dec);
if (!codec_ctx) {
av_log(NULL, AV_LOG_ERROR, "Failed to allocate the decoder context for stream #%u\n", i);
return AVERROR(ENOMEM);
}
ret = avcodec_parameters_to_context(codec_ctx, stream->codecpar);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to copy decoder parameters to input decoder context "
"for stream #%u\n", i);
return ret;
}
/* Inform the decoder about the timebase for the packet timestamps.
* This is highly recommended, but not mandatory. */
codec_ctx->pkt_timebase = stream->time_base;
/* Reencode video & audio and remux subtitles etc. */
if (codec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
|| codec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
if (codec_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
codec_ctx->framerate = av_guess_frame_rate(ifmt_ctx, stream, NULL);
/* Open decoder */
ret = avcodec_open2(codec_ctx, dec, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to open decoder for stream #%u\n", i);
return ret;
}
}
stream_ctx[i].dec_ctx = codec_ctx;
stream_ctx[i].dec_frame = av_frame_alloc();
if (!stream_ctx[i].dec_frame)
return AVERROR(ENOMEM);
}
return 0;
}
static int open_output_file(const char *filename)
{
AVStream *out_stream;
AVStream *in_stream;
AVCodecContext *dec_ctx, *enc_ctx;
const AVCodec *encoder;
int ret;
unsigned int i;
ofmt_ctx = NULL;
avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, filename);
if (!ofmt_ctx) {
av_log(NULL, AV_LOG_ERROR, "Could not create output context\n");
return AVERROR_UNKNOWN;
}
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
out_stream = avformat_new_stream(ofmt_ctx, NULL);
if (!out_stream) {
av_log(NULL, AV_LOG_ERROR, "Failed allocating output stream\n");
return AVERROR_UNKNOWN;
}
in_stream = ifmt_ctx->streams[i];
dec_ctx = stream_ctx[i].dec_ctx;
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
|| dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
/* in this example, we choose transcoding to same codec */
encoder = avcodec_find_encoder(dec_ctx->codec_id);
if (!encoder) {
av_log(NULL, AV_LOG_FATAL, "Necessary encoder not found\n");
return AVERROR_INVALIDDATA;
}
enc_ctx = avcodec_alloc_context3(encoder);
if (!enc_ctx) {
av_log(NULL, AV_LOG_FATAL, "Failed to allocate the encoder context\n");
return AVERROR(ENOMEM);
}
/* In this example, we transcode to same properties (picture size,
* sample rate etc.). These properties can be changed for output
* streams easily using filters */
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
enc_ctx->height = dec_ctx->height;
enc_ctx->width = dec_ctx->width;
enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
/* take first format from list of supported formats */
if (encoder->pix_fmts)
enc_ctx->pix_fmt = encoder->pix_fmts[0];
else
enc_ctx->pix_fmt = dec_ctx->pix_fmt;
/* video time_base can be set to whatever is handy and supported by encoder */
enc_ctx->time_base = av_inv_q(dec_ctx->framerate);
} else {
enc_ctx->sample_rate = dec_ctx->sample_rate;
ret = av_channel_layout_copy(&enc_ctx->ch_layout, &dec_ctx->ch_layout);
if (ret < 0)
return ret;
/* take first format from list of supported formats */
enc_ctx->sample_fmt = encoder->sample_fmts[0];
enc_ctx->time_base = (AVRational){1, enc_ctx->sample_rate};
}
if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
/* Third parameter can be used to pass settings to encoder */
ret = avcodec_open2(enc_ctx, encoder, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot open %s encoder for stream #%u\n", encoder->name, i);
return ret;
}
ret = avcodec_parameters_from_context(out_stream->codecpar, enc_ctx);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to copy encoder parameters to output stream #%u\n", i);
return ret;
}
out_stream->time_base = enc_ctx->time_base;
stream_ctx[i].enc_ctx = enc_ctx;
} else if (dec_ctx->codec_type == AVMEDIA_TYPE_UNKNOWN) {
av_log(NULL, AV_LOG_FATAL, "Elementary stream #%d is of unknown type, cannot proceed\n", i);
return AVERROR_INVALIDDATA;
} else {
/* if this stream must be remuxed */
ret = avcodec_parameters_copy(out_stream->codecpar, in_stream->codecpar);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Copying parameters for stream #%u failed\n", i);
return ret;
}
out_stream->time_base = in_stream->time_base;
}
}
av_dump_format(ofmt_ctx, 0, filename, 1);
if (!(ofmt_ctx->oformat->flags & AVFMT_NOFILE)) {
ret = avio_open(&ofmt_ctx->pb, filename, AVIO_FLAG_WRITE);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Could not open output file '%s'", filename);
return ret;
}
}
/* init muxer, write output file header */
ret = avformat_write_header(ofmt_ctx, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error occurred when opening output file\n");
return ret;
}
return 0;
}
static int init_filter(FilteringContext* fctx, AVCodecContext *dec_ctx,
AVCodecContext *enc_ctx, const char *filter_spec)
{
char args[512];
int ret = 0;
const AVFilter *buffersrc = NULL;
const AVFilter *buffersink = NULL;
AVFilterContext *buffersrc_ctx = NULL;
AVFilterContext *buffersink_ctx = NULL;
AVFilterInOut *outputs = avfilter_inout_alloc();
AVFilterInOut *inputs = avfilter_inout_alloc();
AVFilterGraph *filter_graph = avfilter_graph_alloc();
if (!outputs || !inputs || !filter_graph) {
ret = AVERROR(ENOMEM);
goto end;
}
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
buffersrc = avfilter_get_by_name("buffer");
buffersink = avfilter_get_by_name("buffersink");
if (!buffersrc || !buffersink) {
av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
ret = AVERROR_UNKNOWN;
goto end;
}
snprintf(args, sizeof(args),
"video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
dec_ctx->pkt_timebase.num, dec_ctx->pkt_timebase.den,
dec_ctx->sample_aspect_ratio.num,
dec_ctx->sample_aspect_ratio.den);
ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
args, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
goto end;
}
ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
NULL, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
goto end;
}
ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
(uint8_t*)&enc_ctx->pix_fmt, sizeof(enc_ctx->pix_fmt),
AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output pixel format\n");
goto end;
}
} else if (dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
char buf[64];
buffersrc = avfilter_get_by_name("abuffer");
buffersink = avfilter_get_by_name("abuffersink");
if (!buffersrc || !buffersink) {
av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
ret = AVERROR_UNKNOWN;
goto end;
}
if (dec_ctx->ch_layout.order == AV_CHANNEL_ORDER_UNSPEC)
av_channel_layout_default(&dec_ctx->ch_layout, dec_ctx->ch_layout.nb_channels);
av_channel_layout_describe(&dec_ctx->ch_layout, buf, sizeof(buf));
snprintf(args, sizeof(args),
"time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=%s",
dec_ctx->pkt_timebase.num, dec_ctx->pkt_timebase.den, dec_ctx->sample_rate,
av_get_sample_fmt_name(dec_ctx->sample_fmt),
buf);
ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
args, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer source\n");
goto end;
}
ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
NULL, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
goto end;
}
ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
(uint8_t*)&enc_ctx->sample_fmt, sizeof(enc_ctx->sample_fmt),
AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
goto end;
}
av_channel_layout_describe(&enc_ctx->ch_layout, buf, sizeof(buf));
ret = av_opt_set(buffersink_ctx, "ch_layouts",
buf, AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
goto end;
}
ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
(uint8_t*)&enc_ctx->sample_rate, sizeof(enc_ctx->sample_rate),
AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
goto end;
}
} else {
ret = AVERROR_UNKNOWN;
goto end;
}
/* Endpoints for the filter graph. */
outputs->name = av_strdup("in");
outputs->filter_ctx = buffersrc_ctx;
outputs->pad_idx = 0;
outputs->next = NULL;
inputs->name = av_strdup("out");
inputs->filter_ctx = buffersink_ctx;
inputs->pad_idx = 0;
inputs->next = NULL;
if (!outputs->name || !inputs->name) {
ret = AVERROR(ENOMEM);
goto end;
}
if ((ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
&inputs, &outputs, NULL)) < 0)
goto end;
if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
goto end;
/* Fill FilteringContext */
fctx->buffersrc_ctx = buffersrc_ctx;
fctx->buffersink_ctx = buffersink_ctx;
fctx->filter_graph = filter_graph;
end:
avfilter_inout_free(&inputs);
avfilter_inout_free(&outputs);
return ret;
}
static int init_filters(void)
{
const char *filter_spec;
unsigned int i;
int ret;
filter_ctx = static_cast<FilteringContext *>(av_malloc_array(ifmt_ctx->nb_streams, sizeof(*filter_ctx)));
if (!filter_ctx)
return AVERROR(ENOMEM);
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
filter_ctx[i].buffersrc_ctx = NULL;
filter_ctx[i].buffersink_ctx = NULL;
filter_ctx[i].filter_graph = NULL;
if (!(ifmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO
|| ifmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO))
continue;
if (ifmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
filter_spec = "null"; /* passthrough (dummy) filter for video */
else
filter_spec = "anull"; /* passthrough (dummy) filter for audio */
ret = init_filter(&filter_ctx[i], stream_ctx[i].dec_ctx,
stream_ctx[i].enc_ctx, filter_spec);
if (ret)
return ret;
filter_ctx[i].enc_pkt = av_packet_alloc();
if (!filter_ctx[i].enc_pkt)
return AVERROR(ENOMEM);
filter_ctx[i].filtered_frame = av_frame_alloc();
if (!filter_ctx[i].filtered_frame)
return AVERROR(ENOMEM);
}
return 0;
}
static int encode_write_frame(unsigned int stream_index, int flush)
{
StreamContext *stream = &stream_ctx[stream_index];
FilteringContext *filter = &filter_ctx[stream_index];
AVFrame *filt_frame = flush ? NULL : filter->filtered_frame;
AVPacket *enc_pkt = filter->enc_pkt;
int ret;
av_log(NULL, AV_LOG_INFO, "Encoding frame\n");
/* encode filtered frame */
av_packet_unref(enc_pkt);
if (filt_frame && filt_frame->pts != AV_NOPTS_VALUE)
filt_frame->pts = av_rescale_q(filt_frame->pts, filt_frame->time_base,
stream->enc_ctx->time_base);
ret = avcodec_send_frame(stream->enc_ctx, filt_frame);
if (ret < 0)
return ret;
while (ret >= 0) {
ret = avcodec_receive_packet(stream->enc_ctx, enc_pkt);
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
return 0;
/* prepare packet for muxing */
enc_pkt->stream_index = stream_index;
av_packet_rescale_ts(enc_pkt,
stream->enc_ctx->time_base,
ofmt_ctx->streams[stream_index]->time_base);
av_log(NULL, AV_LOG_DEBUG, "Muxing frame\n");
/* mux encoded frame */
ret = av_interleaved_write_frame(ofmt_ctx, enc_pkt);
}
return ret;
}
static int filter_encode_write_frame(AVFrame *frame, unsigned int stream_index)
{
FilteringContext *filter = &filter_ctx[stream_index];
int ret;
av_log(NULL, AV_LOG_INFO, "Pushing decoded frame to filters\n");
/* push the decoded frame into the filtergraph */
ret = av_buffersrc_add_frame_flags(filter->buffersrc_ctx,
frame, 0);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
return ret;
}
/* pull filtered frames from the filtergraph */
while (1) {
av_log(NULL, AV_LOG_INFO, "Pulling filtered frame from filters\n");
ret = av_buffersink_get_frame(filter->buffersink_ctx,
filter->filtered_frame);
if (ret < 0) {
/* if no more frames for output - returns AVERROR(EAGAIN)
* if flushed and no more frames for output - returns AVERROR_EOF
* rewrite retcode to 0 to show it as normal procedure completion
*/
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
ret = 0;
break;
}
filter->filtered_frame->time_base = av_buffersink_get_time_base(filter->buffersink_ctx);;
filter->filtered_frame->pict_type = AV_PICTURE_TYPE_NONE;
ret = encode_write_frame(stream_index, 0);
av_frame_unref(filter->filtered_frame);
if (ret < 0)
break;
}
return ret;
}
static int flush_encoder(unsigned int stream_index)
{
if (!(stream_ctx[stream_index].enc_ctx->codec->capabilities &
AV_CODEC_CAP_DELAY))
return 0;
av_log(NULL, AV_LOG_INFO, "Flushing stream #%u encoder\n", stream_index);
return encode_write_frame(stream_index, 1);
}
int main(int argc, char **argv)
{
int ret;
AVPacket *packet = NULL;
unsigned int stream_index;
unsigned int i;
// if (argc != 3) {
// av_log(NULL, AV_LOG_ERROR, "Usage: %s <input file> <output file>\n", argv[0]);
// return 1;
// }
std::string inputFile = "/Users/gengen/Downloads/material-design/m_in.mp4";
std::string outputFile ="/Users/gengen/Downloads/material-design/out/video_out.mp4";
if ((ret = open_input_file(inputFile.data())) < 0)
goto end;
if ((ret = open_output_file(outputFile.data())) < 0)
goto end;
if ((ret = init_filters()) < 0)
goto end;
if (!(packet = av_packet_alloc()))
goto end;
/* read all packets */
while (1) {
if ((ret = av_read_frame(ifmt_ctx, packet)) < 0)
break;
stream_index = packet->stream_index;
av_log(NULL, AV_LOG_DEBUG, "Demuxer gave frame of stream_index %u\n",
stream_index);
if (filter_ctx[stream_index].filter_graph) {
StreamContext *stream = &stream_ctx[stream_index];
av_log(NULL, AV_LOG_DEBUG, "Going to reencode&filter the frame\n");
ret = avcodec_send_packet(stream->dec_ctx, packet);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Decoding failed\n");
break;
}
while (ret >= 0) {
ret = avcodec_receive_frame(stream->dec_ctx, stream->dec_frame);
if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
break;
else if (ret < 0)
goto end;
stream->dec_frame->pts = stream->dec_frame->best_effort_timestamp;
ret = filter_encode_write_frame(stream->dec_frame, stream_index);
if (ret < 0)
goto end;
}
} else {
/* remux this frame without reencoding */
av_packet_rescale_ts(packet,
ifmt_ctx->streams[stream_index]->time_base,
ofmt_ctx->streams[stream_index]->time_base);
ret = av_interleaved_write_frame(ofmt_ctx, packet);
if (ret < 0)
goto end;
}
av_packet_unref(packet);
}
/* flush decoders, filters and encoders */
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
StreamContext *stream;
if (!filter_ctx[i].filter_graph)
continue;
stream = &stream_ctx[i];
av_log(NULL, AV_LOG_INFO, "Flushing stream %u decoder\n", i);
/* flush decoder */
ret = avcodec_send_packet(stream->dec_ctx, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Flushing decoding failed\n");
goto end;
}
while (ret >= 0) {
ret = avcodec_receive_frame(stream->dec_ctx, stream->dec_frame);
if (ret == AVERROR_EOF)
break;
else if (ret < 0)
goto end;
stream->dec_frame->pts = stream->dec_frame->best_effort_timestamp;
ret = filter_encode_write_frame(stream->dec_frame, i);
if (ret < 0)
goto end;
}
/* flush filter */
ret = filter_encode_write_frame(NULL, i);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Flushing filter failed\n");
goto end;
}
/* flush encoder */
ret = flush_encoder(i);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Flushing encoder failed\n");
goto end;
}
}
av_write_trailer(ofmt_ctx);
end:
av_packet_free(&packet);
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
avcodec_free_context(&stream_ctx[i].dec_ctx);
if (ofmt_ctx && ofmt_ctx->nb_streams > i && ofmt_ctx->streams[i] && stream_ctx[i].enc_ctx)
avcodec_free_context(&stream_ctx[i].enc_ctx);
if (filter_ctx && filter_ctx[i].filter_graph) {
avfilter_graph_free(&filter_ctx[i].filter_graph);
av_packet_free(&filter_ctx[i].enc_pkt);
av_frame_free(&filter_ctx[i].filtered_frame);
}
av_frame_free(&stream_ctx[i].dec_frame);
}
av_free(filter_ctx);
av_free(stream_ctx);
avformat_close_input(&ifmt_ctx);
if (ofmt_ctx && !(ofmt_ctx->oformat->flags & AVFMT_NOFILE))
avio_closep(&ofmt_ctx->pb);
avformat_free_context(ofmt_ctx);
if (ret < 0)
av_log(NULL, AV_LOG_ERROR, "Error occurred: %s\n", av_err2str(ret));
return ret ? 1 : 0;
}
\ No newline at end of file
//
// Created by 崔华根 on 2024/6/13.
//
/*
* Copyright (c) 2010 Nicolas George
* Copyright (c) 2011 Stefano Sabatini
* Copyright (c) 2014 Andrey Utkin
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/**
* @file demuxing, decoding, filtering, encoding and muxing API usage example
* @example transcode.c
*
* Convert input to output file, applying some hard-coded filter-graph on both
* audio and video streams.
*/
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavfilter/buffersink.h>
#include <libavfilter/buffersrc.h>
#include <libavutil/channel_layout.h>
#include <libavutil/mem.h>
#include <libavutil/opt.h>
#include <libavutil/pixdesc.h>
}
#include <string>
#include <map>
static AVFormatContext *ifmt_ctx;
static AVFormatContext *ofmt_ctx;
typedef struct FilteringContext {
AVFilterContext *buffersink_ctx;
AVFilterContext *buffersrc_ctx;
AVFilterGraph *filter_graph;
AVPacket *enc_pkt;
AVFrame *filtered_frame;
} FilteringContext;
static FilteringContext *filter_ctx;
typedef struct StreamContext {
AVCodecContext *dec_ctx;
AVCodecContext *enc_ctx;
AVFrame *dec_frame;
} StreamContext;
static StreamContext *stream_ctx;
static std::string inputFile = "/Users/gengen/Downloads/material-design/video.mp4";
static std::string outputFile ="/Users/gengen/Downloads/material-design/out/video_out.mp4";
std::map<unsigned int,int> maxDts;
std::map<unsigned int,int> maxPts;
static int open_input_file(const char *filename)
{
int ret;
unsigned int i;
ifmt_ctx = NULL;
if ((ret = avformat_open_input(&ifmt_ctx, filename, NULL, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot open input file\n");
return ret;
}
if ((ret = avformat_find_stream_info(ifmt_ctx, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
return ret;
}
av_dump_format(ifmt_ctx, 0, filename, 0);
stream_ctx = static_cast<StreamContext *>( av_calloc(ifmt_ctx->nb_streams, sizeof(*stream_ctx)));
if (!stream_ctx)
return AVERROR(ENOMEM);
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
AVStream *stream = ifmt_ctx->streams[i];
const AVCodec *dec = avcodec_find_decoder(stream->codecpar->codec_id);
AVCodecContext *codec_ctx;
if (!dec) {
av_log(NULL, AV_LOG_ERROR, "Failed to find decoder for stream #%u\n", i);
// return AVERROR_DECODER_NOT_FOUND;
continue;
}
codec_ctx = avcodec_alloc_context3(dec);
if (!codec_ctx) {
av_log(NULL, AV_LOG_ERROR, "Failed to allocate the decoder context for stream #%u\n", i);
return AVERROR(ENOMEM);
}
ret = avcodec_parameters_to_context(codec_ctx, stream->codecpar);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to copy decoder parameters to input decoder context "
"for stream #%u\n", i);
return ret;
}
/* Inform the decoder about the timebase for the packet timestamps.
* This is highly recommended, but not mandatory. */
codec_ctx->pkt_timebase = stream->time_base;
/* Reencode video & audio and remux subtitles etc. */
if (codec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
|| codec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
if (codec_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
codec_ctx->framerate = av_guess_frame_rate(ifmt_ctx, stream, NULL);
/* Open decoder */
ret = avcodec_open2(codec_ctx, dec, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to open decoder for stream #%u\n", i);
return ret;
}
}
stream_ctx[i].dec_ctx = codec_ctx;
stream_ctx[i].dec_frame = av_frame_alloc();
if (!stream_ctx[i].dec_frame)
return AVERROR(ENOMEM);
}
return 0;
}
static int open_output_file(const char *filename)
{
AVStream *out_stream;
AVStream *in_stream;
AVCodecContext *dec_ctx, *enc_ctx;
const AVCodec *encoder;
int ret;
unsigned int i;
ofmt_ctx = NULL;
avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, filename);
if (!ofmt_ctx) {
av_log(NULL, AV_LOG_ERROR, "Could not create output context\n");
return AVERROR_UNKNOWN;
}
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
av_log(NULL,AV_LOG_INFO,"open_output_file begin %u\n",i);
in_stream = ifmt_ctx->streams[i];
dec_ctx = stream_ctx[i].dec_ctx;
if (dec_ctx== nullptr) {
continue;
}
maxPts[i] = -1;
maxDts[i] = -1;
out_stream = avformat_new_stream(ofmt_ctx, NULL);
if (!out_stream) {
av_log(NULL, AV_LOG_ERROR, "Failed allocating output stream\n");
return AVERROR_UNKNOWN;
}
av_log(NULL,AV_LOG_INFO,"avformat_new_stream %u\n",i);
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
|| dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
/* in this example, we choose transcoding to same codec */
encoder = avcodec_find_encoder(dec_ctx->codec_id);
if (!encoder) {
av_log(NULL, AV_LOG_FATAL, "Necessary encoder not found\n");
return AVERROR_INVALIDDATA;
}
enc_ctx = avcodec_alloc_context3(encoder);
if (!enc_ctx) {
av_log(NULL, AV_LOG_FATAL, "Failed to allocate the encoder context\n");
return AVERROR(ENOMEM);
}
/* In this example, we transcode to same properties (picture size,
* sample rate etc.). These properties can be changed for output
* streams easily using filters */
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
enc_ctx->height = dec_ctx->height;
enc_ctx->width = dec_ctx->width;
enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
/* take first format from list of supported formats */
if (encoder->pix_fmts)
enc_ctx->pix_fmt = encoder->pix_fmts[0];
else
enc_ctx->pix_fmt = dec_ctx->pix_fmt;
/* video time_base can be set to whatever is handy and supported by encoder */
enc_ctx->time_base = av_inv_q(dec_ctx->framerate);
} else {
enc_ctx->sample_rate = dec_ctx->sample_rate;
ret = av_channel_layout_copy(&enc_ctx->ch_layout, &dec_ctx->ch_layout);
if (ret < 0)
return ret;
/* take first format from list of supported formats */
enc_ctx->sample_fmt = encoder->sample_fmts[0];
enc_ctx->time_base = (AVRational){1, enc_ctx->sample_rate};
}
if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
/* Third parameter can be used to pass settings to encoder */
ret = avcodec_open2(enc_ctx, encoder, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot open %s encoder for stream #%u\n", encoder->name, i);
return ret;
}
ret = avcodec_parameters_from_context(out_stream->codecpar, enc_ctx);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Failed to copy encoder parameters to output stream #%u\n", i);
return ret;
}
out_stream->time_base = enc_ctx->time_base;
stream_ctx[i].enc_ctx = enc_ctx;
} else if (dec_ctx->codec_type == AVMEDIA_TYPE_UNKNOWN) {
av_log(NULL, AV_LOG_FATAL, "Elementary stream #%d is of unknown type, cannot proceed\n", i);
return AVERROR_INVALIDDATA;
} else {
/* if this stream must be remuxed */
ret = avcodec_parameters_copy(out_stream->codecpar, in_stream->codecpar);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Copying parameters for stream #%u failed\n", i);
return ret;
}
out_stream->time_base = in_stream->time_base;
}
}
av_dump_format(ofmt_ctx, 0, filename, 1);
if (!(ofmt_ctx->oformat->flags & AVFMT_NOFILE)) {
ret = avio_open(&ofmt_ctx->pb, filename, AVIO_FLAG_WRITE);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Could not open output file '%s'", filename);
return ret;
}
}
/* init muxer, write output file header */
ret = avformat_write_header(ofmt_ctx, NULL);
av_log(NULL,AV_LOG_INFO,"avformat_write_header \n");
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error occurred when opening output file\n");
return ret;
}
return 0;
}
static int init_filter(FilteringContext* fctx, AVCodecContext *dec_ctx,
AVCodecContext *enc_ctx, const char *filter_spec)
{
char args[512];
int ret = 0;
const AVFilter *buffersrc = NULL;
const AVFilter *buffersink = NULL;
AVFilterContext *buffersrc_ctx = NULL;
AVFilterContext *buffersink_ctx = NULL;
AVFilterInOut *outputs = avfilter_inout_alloc();
AVFilterInOut *inputs = avfilter_inout_alloc();
AVFilterGraph *filter_graph = avfilter_graph_alloc();
if (!outputs || !inputs || !filter_graph) {
av_log(NULL, AV_LOG_ERROR, "!outputs || !inputs || !filter_graph \n");
ret = AVERROR(ENOMEM);
goto end;
}
if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
buffersrc = avfilter_get_by_name("buffer");
buffersink = avfilter_get_by_name("buffersink");
if (!buffersrc || !buffersink) {
av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
ret = AVERROR_UNKNOWN;
goto end;
}
snprintf(args, sizeof(args),
"video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
dec_ctx->pkt_timebase.num, dec_ctx->pkt_timebase.den,
dec_ctx->sample_aspect_ratio.num,
dec_ctx->sample_aspect_ratio.den);
ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
args, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
goto end;
}
ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
NULL, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
goto end;
}
ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
(uint8_t*)&enc_ctx->pix_fmt, sizeof(enc_ctx->pix_fmt),
AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output pixel format\n");
goto end;
}
} else if (dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
char buf[64];
buffersrc = avfilter_get_by_name("abuffer");
buffersink = avfilter_get_by_name("abuffersink");
if (!buffersrc || !buffersink) {
av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
ret = AVERROR_UNKNOWN;
goto end;
}
if (dec_ctx->ch_layout.order == AV_CHANNEL_ORDER_UNSPEC)
av_channel_layout_default(&dec_ctx->ch_layout, dec_ctx->ch_layout.nb_channels);
av_channel_layout_describe(&dec_ctx->ch_layout, buf, sizeof(buf));
snprintf(args, sizeof(args),
"time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=%s",
dec_ctx->pkt_timebase.num, dec_ctx->pkt_timebase.den, dec_ctx->sample_rate,
av_get_sample_fmt_name(dec_ctx->sample_fmt),
buf);
ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
args, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer source\n");
goto end;
}
ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
NULL, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
goto end;
}
ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
(uint8_t*)&enc_ctx->sample_fmt, sizeof(enc_ctx->sample_fmt),
AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
goto end;
}
av_channel_layout_describe(&enc_ctx->ch_layout, buf, sizeof(buf));
ret = av_opt_set(buffersink_ctx, "ch_layouts",
buf, AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
goto end;
}
ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
(uint8_t*)&enc_ctx->sample_rate, sizeof(enc_ctx->sample_rate),
AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
goto end;
}
} else {
ret = AVERROR_UNKNOWN;
av_log(NULL, AV_LOG_ERROR, "AVERROR_UNKNOWN dec_ctx->codec_type:%u \n",dec_ctx->codec_type );
goto end;
}
/* Endpoints for the filter graph. */
outputs->name = av_strdup("in");
outputs->filter_ctx = buffersrc_ctx;
outputs->pad_idx = 0;
outputs->next = NULL;
inputs->name = av_strdup("out");
inputs->filter_ctx = buffersink_ctx;
inputs->pad_idx = 0;
inputs->next = NULL;
if (!outputs->name || !inputs->name) {
av_log(NULL, AV_LOG_ERROR, "!outputs->name || !inputs->name \n");
ret = AVERROR(ENOMEM);
goto end;
}
if ((ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
&inputs, &outputs, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR, "avfilter_graph_parse_ptr failed \n");
goto end;
}
if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR, "avfilter_graph_config failed \n");
goto end;
}
/* Fill FilteringContext */
fctx->buffersrc_ctx = buffersrc_ctx;
fctx->buffersink_ctx = buffersink_ctx;
fctx->filter_graph = filter_graph;
end:
avfilter_inout_free(&inputs);
avfilter_inout_free(&outputs);
return ret;
}
static int init_filters(void)
{
const char *filter_spec;
unsigned int i;
int ret;
filter_ctx = static_cast<FilteringContext *>(av_malloc_array(ifmt_ctx->nb_streams, sizeof(*filter_ctx)));
if (!filter_ctx)
return AVERROR(ENOMEM);
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
filter_ctx[i].buffersrc_ctx = NULL;
filter_ctx[i].buffersink_ctx = NULL;
filter_ctx[i].filter_graph = NULL;
// if (!(ifmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO
// || ifmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO))
if (!(ifmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO))
continue;
if (ifmt_ctx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
filter_spec = "null"; /* passthrough (dummy) filter for video */
else
filter_spec = "anull"; /* passthrough (dummy) filter for audio */
ret = init_filter(&filter_ctx[i], stream_ctx[i].dec_ctx,
stream_ctx[i].enc_ctx, filter_spec);
if (ret)
return ret;
filter_ctx[i].enc_pkt = av_packet_alloc();
if (!filter_ctx[i].enc_pkt)
return AVERROR(ENOMEM);
filter_ctx[i].filtered_frame = av_frame_alloc();
if (!filter_ctx[i].filtered_frame)
return AVERROR(ENOMEM);
}
return 0;
}
static int encode_write_frame(unsigned int stream_index, int flush)
{
StreamContext *stream = &stream_ctx[stream_index];
FilteringContext *filter = &filter_ctx[stream_index];
AVFrame *filt_frame = flush ? NULL : filter->filtered_frame;
AVPacket *enc_pkt = filter->enc_pkt;
int ret;
av_log(NULL, AV_LOG_INFO, "Encoding frame\n");
/* encode filtered frame */
av_packet_unref(enc_pkt);
if (filt_frame && filt_frame->pts != AV_NOPTS_VALUE) {
filt_frame->pts = av_rescale_q(filt_frame->pts, filt_frame->time_base,
stream->enc_ctx->time_base);
filt_frame->pkt_dts = av_rescale_q(filt_frame->pkt_dts, filt_frame->time_base,
stream->enc_ctx->time_base);
av_log(NULL, AV_LOG_INFO, "Encoding frame filt_frame->sample_rate:%u\n", filt_frame->sample_rate);
av_log(NULL, AV_LOG_INFO, "Encoding frame filt_frame->pts:%u\n", filt_frame->pts);
av_log(NULL, AV_LOG_INFO, "Encoding framefilt_frame->nb_samples:%u\n", filt_frame->nb_samples);
av_log(NULL, AV_LOG_INFO, "Encoding frame filt_frame->dts:%u\n", filt_frame->pkt_dts);
}
ret = avcodec_send_frame(stream->enc_ctx, filt_frame);
if (ret < 0) {
av_log(NULL, AV_LOG_INFO, "avcodec_send_frame fail\n");
return ret;
}
while (ret >= 0) {
ret = avcodec_receive_packet(stream->enc_ctx, enc_pkt);
av_log(NULL, AV_LOG_INFO, "Encoding frame avcodec_receive_packet %u\n",stream_index);
av_log(NULL, AV_LOG_INFO, "Encoding enc_pkt pts before %u\n",enc_pkt->pts);
av_log(NULL, AV_LOG_INFO, "Encoding enc_pkt dts before %u\n",enc_pkt->dts);
av_log(NULL, AV_LOG_INFO, "Encoding enc_pkt ret %u\n",ret);
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
av_log(NULL, AV_LOG_INFO, "avcodec_receive_packet ret == AVERROR(EAGAIN) || ret == AVERROR_EOF\n");
return 0;
}
// if (enc_pkt->dts>maxDts[stream_index]) {
// maxDts[stream_index]=enc_pkt->dts;
// } else {
// enc_pkt->dts=maxDts[stream_index]+1;
// maxDts[stream_index] = enc_pkt->dts;
// }
// av_log(NULL, AV_LOG_INFO, "Encoding enc_pkt pts after %u\n",enc_pkt->pts);
// av_log(NULL, AV_LOG_INFO, "Encoding enc_pkt dts after %u\n",enc_pkt->dts);
av_log(NULL,AV_LOG_INFO,"pre set stream index\n");
/* prepare packet for muxing */
enc_pkt->stream_index = stream_index;
av_log(NULL, AV_LOG_INFO, "av_packet_rescale_ts enc_pkt->time_base:%u\n",enc_pkt->time_base);
av_packet_rescale_ts(enc_pkt,
stream->enc_ctx->time_base,
ofmt_ctx->streams[stream_index]->time_base);
av_log(NULL, AV_LOG_INFO, "Muxing frame\n");
/* mux encoded frame */
ret = av_interleaved_write_frame(ofmt_ctx, enc_pkt);
}
return ret;
}
static int filter_encode_write_frame(AVFrame *frame, unsigned int stream_index)
{
FilteringContext *filter = &filter_ctx[stream_index];
int ret;
av_log(NULL, AV_LOG_INFO, "Pushing decoded frame to filters\n");
/* push the decoded frame into the filtergraph */
ret = av_buffersrc_add_frame_flags(filter->buffersrc_ctx,
frame, 0);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
return ret;
}
/* pull filtered frames from the filtergraph */
while (1) {
av_log(NULL, AV_LOG_INFO, "Pulling filtered frame from filters\n");
ret = av_buffersink_get_frame(filter->buffersink_ctx,
filter->filtered_frame);
if (ret < 0) {
/* if no more frames for output - returns AVERROR(EAGAIN)
* if flushed and no more frames for output - returns AVERROR_EOF
* rewrite retcode to 0 to show it as normal procedure completion
*/
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
ret = 0;
break;
}
filter->filtered_frame->time_base = av_buffersink_get_time_base(filter->buffersink_ctx);;
filter->filtered_frame->pict_type = AV_PICTURE_TYPE_NONE;
ret = encode_write_frame(stream_index, 0);
av_log(NULL, AV_LOG_INFO, "encode_write_frame stream_index:%u\n",ret);
av_frame_unref(filter->filtered_frame);
if (ret < 0)
break;
}
return ret;
}
static int flush_encoder(unsigned int stream_index)
{
if (!(stream_ctx[stream_index].enc_ctx->codec->capabilities &
AV_CODEC_CAP_DELAY))
return 0;
av_log(NULL, AV_LOG_INFO, "Flushing stream #%u encoder\n", stream_index);
return encode_write_frame(stream_index, 1);
}
int main(int argc, char **argv)
{
int ret;
AVPacket *packet = NULL;
unsigned int stream_index;
unsigned int i;
// if (argc != 3) {
// av_log(NULL, AV_LOG_ERROR, "Usage: %s <input file> <output file>\n", argv[0]);
// return 1;
// }
if ((ret = open_input_file(inputFile.data())) < 0) {
av_log(NULL, AV_LOG_ERROR, "open_input_file failed \n");
goto end;
}
av_log(NULL, AV_LOG_INFO, "open_input_file ok\n");
if ((ret = open_output_file(outputFile.data())) < 0) {
av_log(NULL, AV_LOG_ERROR, "open_output_file failed \n");
goto end;
}
av_log(NULL, AV_LOG_INFO, "open_output_file ok\n");
if ((ret = init_filters()) < 0) {
av_log(NULL, AV_LOG_ERROR, "init_filters failed \n");
goto end;
}
av_log(NULL, AV_LOG_INFO, "init_filters ok\n");
if (!(packet = av_packet_alloc())) {
av_log(NULL, AV_LOG_ERROR, "av_packet_alloc failed \n");
goto end;
}
av_log(NULL, AV_LOG_INFO, "av_packet_alloc ok\n");
/* read all packets */
while (1) {
if ((ret = av_read_frame(ifmt_ctx, packet)) < 0) {
av_log(NULL, AV_LOG_INFO, "av_read_frame break\n");
break;
}
stream_index = packet->stream_index;
av_log(NULL, AV_LOG_INFO, "av_read_frame ==========================%u\n",
stream_index);
if (filter_ctx[stream_index].filter_graph) {
StreamContext *stream = &stream_ctx[stream_index];
av_log(NULL, AV_LOG_INFO, "Going to encode&filter the frame\n");
ret = avcodec_send_packet(stream->dec_ctx, packet);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Decoding failed %u\n",stream_index);
break;
}
av_log(NULL, AV_LOG_INFO, "avcodec_send_packet %u\n",ret);
while (ret >= 0) {
av_log(NULL, AV_LOG_INFO, "avcodec_receive_frame \n");
ret = avcodec_receive_frame(stream->dec_ctx, stream->dec_frame);
if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) {
av_log(NULL, AV_LOG_INFO, "ret == AVERROR_EOF || ret == AVERROR(EAGAIN) \n");
break;
}
else if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "avcodec_receive_frame fail \n");
goto end;
}
stream->dec_frame->pts = stream->dec_frame->best_effort_timestamp;
av_log(NULL, AV_LOG_INFO, " stream->dec_frame->pts:%u\n", stream->dec_frame->pts);
ret = filter_encode_write_frame(stream->dec_frame, stream_index);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "filter_encode_write_frame failed %u\n",stream_index);
goto end;
}
}
} else {
av_log(NULL, AV_LOG_INFO, "filter_graph==null\n");
// /* remux this frame without reencoding */
// av_packet_rescale_ts(packet,
// ifmt_ctx->streams[stream_index]->time_base,
// ofmt_ctx->streams[stream_index]->time_base);
//
// ret = av_interleaved_write_frame(ofmt_ctx, packet);
// if (ret < 0)
// goto end;
}
av_packet_unref(packet);
}
/* flush decoders, filters and encoders */
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
StreamContext *stream;
if (!filter_ctx[i].filter_graph)
continue;
stream = &stream_ctx[i];
av_log(NULL, AV_LOG_INFO, "Flushing stream %u decoder\n", i);
/* flush decoder */
ret = avcodec_send_packet(stream->dec_ctx, NULL);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Flushing decoding failed\n");
goto end;
}
while (ret >= 0) {
ret = avcodec_receive_frame(stream->dec_ctx, stream->dec_frame);
if (ret == AVERROR_EOF)
break;
else if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "avcodec_receive_frame failed\n");
goto end;
}
stream->dec_frame->pts = stream->dec_frame->best_effort_timestamp;
av_log(NULL, AV_LOG_INFO, " stream->dec_frame->pts:%u\n", stream->dec_frame->pts);
ret = filter_encode_write_frame(stream->dec_frame, i);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "filter_encode_write_frame failed\n");
goto end;
}
}
av_log(NULL, AV_LOG_INFO, " filter_encode_write_frame(NULL, i)\n");
/* flush filter */
ret = filter_encode_write_frame(NULL, i);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Flushing filter failed\n");
goto end;
}
/* flush encoder */
ret = flush_encoder(i);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Flushing encoder failed\n");
goto end;
}
}
av_write_trailer(ofmt_ctx);
av_log(NULL, AV_LOG_VERBOSE, "av_write_trailer \n");
end:
av_packet_free(&packet);
for (i = 0; i < ifmt_ctx->nb_streams; i++) {
avcodec_free_context(&stream_ctx[i].dec_ctx);
if (ofmt_ctx && ofmt_ctx->nb_streams > i && ofmt_ctx->streams[i] && stream_ctx[i].enc_ctx)
avcodec_free_context(&stream_ctx[i].enc_ctx);
if (filter_ctx && filter_ctx[i].filter_graph) {
avfilter_graph_free(&filter_ctx[i].filter_graph);
av_packet_free(&filter_ctx[i].enc_pkt);
av_frame_free(&filter_ctx[i].filtered_frame);
}
av_frame_free(&stream_ctx[i].dec_frame);
}
av_free(filter_ctx);
av_free(stream_ctx);
avformat_close_input(&ifmt_ctx);
if (ofmt_ctx && !(ofmt_ctx->oformat->flags & AVFMT_NOFILE))
avio_closep(&ofmt_ctx->pb);
avformat_free_context(ofmt_ctx);
if (ret < 0)
av_log(NULL, AV_LOG_ERROR, "Error occurred: %s\n", av_err2str(ret));
return ret ? 1 : 0;
}
\ No newline at end of file
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