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https://github.com/CCExtractor/ccextractor.git
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Merge branch 'pr/n121_anshul1912'
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28
docs/using_cmake_build.txt
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28
docs/using_cmake_build.txt
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For building ccextractor using cmake folllow below steps..
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Step 1) Check you have right version of cmake installed. ( version >= 3.0.2 )
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We are using CMP0037 policy of cmake which was introduced in 3.0.0
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since we have tested our system only with cmake version 3.0.2, I would
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suggest to use 3.0.2 or higher version.
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Step 2) create a seprate directory where you want to build the target.
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In Unix you can do it using follwing commands.
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~> cd ccextractor
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~> mkdir build
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Step 3) make the build sytem using cmake
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~> cmake ../src/
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Step 4) Compile the code.
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~> make
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~> make install
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Step 5) Use CCextractor as you would like
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If you want to build CCExtractor with FFMpeg you need to pass
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cmake -DWITH_FFMPEG=ON ../src/
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Hint for looking all the things you want to set from outside
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cmake -LAH ../src/
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@ -2,6 +2,7 @@ cmake_minimum_required (VERSION 3.0.2)
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project (CCExtractor)
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option(WITH_FFMPEG "Build using FFmpeg demuxer and decoder" OFF)
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#Version number
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set (CCEXTRACTOR_VERSION_MAJOR 0)
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set (CCEXTRACTOR_VERSION_MINOR 75)
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@ -13,6 +14,7 @@ configure_file (
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"${PROJECT_BINARY_DIR}/CCExtractorConfig.h"
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)
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include_directories ("${PROJECT_SOURCE_DIR}")
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include_directories ("${PROJECT_SOURCE_DIR}/lib_ccx")
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include_directories ("${PROJECT_SOURCE_DIR}/gpacmp4/")
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@ -22,7 +24,7 @@ include_directories ("${PROJECT_SOURCE_DIR}/libccx_common/")
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LINK_DIRECTORIES(/opt/local/lib)
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LINK_DIRECTORIES(/usr/local/lib)
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SET (CMAKE_C_FLAGS "-O0 -Wall -g -std=gnu99 -Wno-write-strings -D_FILE_OFFSET_BITS=64")
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SET (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O0 -Wall -g -std=gnu99 -Wno-write-strings -D_FILE_OFFSET_BITS=64")
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add_subdirectory (lib_ccx)
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AUX_SOURCE_DIRECTORY(${PROJECT_SOURCE_DIR} SOURCEFILE)
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@ -30,6 +32,22 @@ set (EXTRA_LIBS ${EXTRA_LIBS} ccx)
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set (EXTRA_LIBS ${EXTRA_LIBS} png)
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set (EXTRA_LIBS ${EXTRA_LIBS} m)
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########################################################
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# Build using FFmpeg libraries
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#
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if (WITH_FFMPEG)
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find_package(PkgConfig)
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pkg_check_modules(AVFORMAT REQUIRED libavformat)
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pkg_check_modules(AVUTIL REQUIRED libavutil)
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pkg_check_modules(AVCODEC REQUIRED libavcodec)
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set (EXTRA_LIBS ${EXTRA_LIBS} ${AVFORMAT_STATIC_LIBRARIES} )
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set (EXTRA_LIBS ${EXTRA_LIBS} ${AVUTIL_STATIC_LIBRARIES} )
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set (EXTRA_LIBS ${EXTRA_LIBS} ${AVCODEC_STATIC_LIBRARIES} )
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SET (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DENABLE_FFMPEG")
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endif (WITH_FFMPEG)
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add_executable(ccextractor ${SOURCEFILE})
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target_link_libraries (ccextractor ${EXTRA_LIBS})
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@ -28,7 +28,9 @@ int main(int argc, char *argv[])
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char *c;
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struct encoder_ctx enc_ctx[2];
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struct cc_subtitle dec_sub;
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#ifdef ENABLE_FFMPEG
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void *ffmpeg_ctx = NULL;
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#endif
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struct lib_ccx_ctx *ctx;
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struct lib_cc_decode *dec_ctx = NULL;
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@ -416,20 +418,12 @@ int main(int argc, char *argv[])
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ffmpeg_ctx = init_ffmpeg(ctx->inputfile[0]);
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if(ffmpeg_ctx)
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{
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int i =0;
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ctx->buffer = malloc(1024);
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if(!ctx->buffer)
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{
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mprint("no memory left\n");
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break;
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}
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do
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{
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int ret = 0;
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char *bptr = ctx->buffer;
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unsigned char *bptr = ctx->buffer;
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int len = ff_get_ccframe(ffmpeg_ctx, bptr, 1024);
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int cc_count = 0;
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memset(bptr,0,1024);
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if(len == AVERROR(EAGAIN))
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{
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continue;
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@ -446,15 +440,13 @@ int main(int argc, char *argv[])
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}
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else
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cc_count = len/3;
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store_hdcc(ctx, bptr, cc_count, i++,fts_now,&dec_sub);
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if(dec_sub.got_output)
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ret = process_cc_data(dec_ctx, bptr, cc_count, &dec_sub);
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if(ret >= 0 && dec_sub.got_output)
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{
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encode_sub(enc_ctx, &dec_sub);
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dec_sub.got_output = 0;
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}
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}while(1);
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free(ctx->buffer);
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continue;
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}
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else
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@ -462,7 +454,6 @@ int main(int argc, char *argv[])
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mprint ("\rFailed to initialized ffmpeg falling back to legacy\n");
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}
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#endif
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if (ctx->auto_stream == CCX_SM_AUTODETECT)
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{
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detect_stream_type(ctx);
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cmake_policy(SET CMP0037 NEW)
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SET (CMAKE_C_FLAGS "-O0 -Wall -g -std=gnu99")
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if (WITH_FFMPEG)
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SET (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DENABLE_FFMPEG")
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endif (WITH_FFMPEG)
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AUX_SOURCE_DIRECTORY("${PROJECT_SOURCE_DIR}/lib_ccx/" SOURCEFILE)
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AUX_SOURCE_DIRECTORY("${PROJECT_SOURCE_DIR}/gpacmp4/" SOURCEFILE)
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#AUX_SOURCE_DIRECTORY("${PROJECT_SOURCE_DIR}/libpng/" SOURCEFILE)
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@ -100,7 +100,7 @@ unsigned get_decoder_line_basic(unsigned char *buffer, int line_num, struct eia6
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int process_cc_data (struct lib_cc_decode *ctx, unsigned char *cc_data, int cc_count, struct cc_subtitle *sub)
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{
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int ret = 0;
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int ret = -1;
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for (int j = 0; j < cc_count * 3; j = j + 3)
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{
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if (validate_cc_data_pair( cc_data + j ) )
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@ -126,7 +126,7 @@ fail:
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* @param maxlen length of buffer, where data will be copied
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* @return number of bytes recieved as data
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*/
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int ff_get_ccframe(void *arg,char*data,int maxlen)
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int ff_get_ccframe(void *arg, unsigned char*data, int maxlen)
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{
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struct ffmpeg_ctx *ctx = arg;
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int len = 0;
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@ -19,5 +19,5 @@ void *init_ffmpeg(char *path);
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* @param maxlen length of buffer, where data will be copied
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* @return number of bytes recieved as data
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*/
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int ff_get_ccframe(void *arg,char*data,int maxlen);
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int ff_get_ccframe(void *arg, unsigned char*data, int maxlen);
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#endif
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@ -271,7 +271,7 @@ int parse_PMT (struct lib_ccx_ctx *ctx, unsigned char *buf, int len, int pos)
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#ifndef ENABLE_OCR
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if(ccx_options.write_format != CCX_OF_SPUPNG )
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{
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mprint ("Please Compile with ENABLE_OCR flag \n");
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mprint ("DVB subtitles detected, OCR subsystem not present. Use -out=spupng for graphic output\n");
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continue;
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}
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#endif
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