configfile.c
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上传日期:2021-12-09
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文件大小:48k
源码类别:
Audio
开发平台:
Visual C++
- /*!
- ***********************************************************************
- * file
- * configfile.c
- * brief
- * Configuration handling.
- * author
- * Main contributors (see contributors.h for copyright, address and affiliation details)
- * - Stephan Wenger <stewe@cs.tu-berlin.de>
- * note
- * In the future this module should hide the Parameters and offer only
- * Functions for their access. Modules which make frequent use of some parameters
- * (e.g. picture size in macroblocks) are free to buffer them on local variables.
- * This will not only avoid global variable and make the code more readable, but also
- * speed it up. It will also greatly facilitate future enhancements such as the
- * handling of different picture sizes in the same sequence. n
- * n
- * For now, everything is just copied to the inp_par structure (gulp)
- *
- **************************************************************************************
- * par Configuration File Format
- **************************************************************************************
- * Format is line oriented, maximum of one parameter per line n
- * n
- * Lines have the following format: n
- * <ParameterName> = <ParameterValue> # Comments \n n
- * Whitespace is space and \t
- * par
- * <ParameterName> are the predefined names for Parameters and are case sensitive.
- * See configfile.h for the definition of those names and their mapping to
- * configinput->values.
- * par
- * <ParameterValue> are either integers [0..9]* or strings.
- * Integers must fit into the wordlengths, signed values are generally assumed.
- * Strings containing no whitespace characters can be used directly. Strings containing
- * whitespace characters are to be inclosed in double quotes ("string with whitespace")
- * The double quote character is forbidden (may want to implement something smarter here).
- * par
- * Any Parameters whose ParameterName is undefined lead to the termination of the program
- * with an error message.
- *
- * par Known bug/Shortcoming:
- * zero-length strings (i.e. to signal an non-existing file
- * have to be coded as "".
- *
- * par Rules for using command files
- * n
- * All Parameters are initially taken from DEFAULTCONFIGFILENAME, defined in configfile.h.
- * If an -f <config> parameter is present in the command line then this file is used to
- * update the defaults of DEFAULTCONFIGFILENAME. There can be more than one -f parameters
- * present. If -p <ParameterName = ParameterValue> parameters are present then these
- * override the default and the additional config file's settings, and are themselves
- * overridden by future -p parameters. There must be whitespace between -f and -p commands
- * and their respective parameters
- ***********************************************************************
- */
- #define INCLUDED_BY_CONFIGFILE_C
- #include <sys/stat.h>
- #include "global.h"
- #include "configfile.h"
- #include "fmo.h"
- #include "conformance.h"
- char *GetConfigFileContent (char *Filename);
- static void ParseContent (char *buf, int bufsize);
- static int ParameterNameToMapIndex (char *s);
- static int InitEncoderParams(void);
- static int TestEncoderParams(int bitdepth_qp_scale[3]);
- static int DisplayEncoderParams(void);
- static void PatchInp (void);
- static int mb_width_cr[4] = {0,8, 8,16};
- static int mb_height_cr[4]= {0,8,16,16};
- #define MAX_ITEMS_TO_PARSE 10000
- /*!
- ***********************************************************************
- * brief
- * print help message and exit
- ***********************************************************************
- */
- void JMHelpExit (void)
- {
- fprintf( stderr, "n lencod [-h] [-d defenc.cfg] {[-f curenc1.cfg]...[-f curencN.cfg]}"
- " {[-p EncParam1=EncValue1]..[-p EncParamM=EncValueM]}nn"
- "## Parametersnn"
- "## Optionsn"
- " -h : prints function usagen"
- " -d : use <defenc.cfg> as default file for parameter initializations.n"
- " If not used then file defaults to encoder.cfg in local directory.n"
- " -f : read <curencM.cfg> for reseting selected encoder parameters.n"
- " Multiple files could be used that set different parametersn"
- " -p : Set parameter <EncParamM> to <EncValueM>.n"
- " See default encoder.cfg file for description of all parameters.nn"
- "## Supported video file formatsn"
- " RAW: .yuv -> YUV 4:2:0nn"
- "## Examples of usage:n"
- " lencodn"
- " lencod -hn"
- " lencod -d default.cfgn"
- " lencod -f curenc1.cfgn"
- " lencod -f curenc1.cfg -p InputFile="e:\data\container_qcif_30.yuv" -p SourceWidth=176 -p SourceHeight=144n"
- " lencod -f curenc1.cfg -p FramesToBeEncoded=30 -p QPISlice=28 -p QPPSlice=28 -p QPBSlice=30n");
- exit(-1);
- }
- /*!
- ************************************************************************
- * brief
- * Reads Input File Size
- *
- ************************************************************************
- */
- int64 getVideoFileSize(void)
- {
- int64 fsize;
- lseek(p_in, 0, SEEK_END);
- fsize = tell((int) p_in);
- lseek(p_in, 0, SEEK_SET);
- return fsize;
- }
- /*!
- ************************************************************************
- * brief
- * Updates the number of frames to encode based on the file size
- *
- ************************************************************************
- */
- static void getNumberOfFrames (void)
- {
- int64 fsize = getVideoFileSize();
- int64 isize = (int64) params->output.size;
- int maxBitDepth = imax(params->output.bit_depth[0], params->output.bit_depth[1]);
- isize <<= (maxBitDepth > 8)? 1: 0;
- params->no_frames = (int) (((fsize - params->infile_header)/ isize) - params->start_frame - 1) / (1 + params->jumpd) + 1;
- }
- /*!
- ************************************************************************
- * brief
- * Updates images max values
- *
- ************************************************************************
- */
- static void updateMaxValue(FrameFormat *format)
- {
- format->max_value[0] = (1 << format->bit_depth[0]) - 1;
- format->max_value_sq[0] = format->max_value[0] * format->max_value[0];
- format->max_value[1] = (1 << format->bit_depth[1]) - 1;
- format->max_value_sq[1] = format->max_value[1] * format->max_value[1];
- format->max_value[2] = (1 << format->bit_depth[2]) - 1;
- format->max_value_sq[2] = format->max_value[2] * format->max_value[2];
- }
- /*!
- ************************************************************************
- * brief
- * Update output format parameters (resolution & bit-depth) given input
- *
- ************************************************************************
- */
- static void updateOutFormat(InputParameters *params)
- {
- params->output.yuv_format = params->yuv_format;
- params->source.yuv_format = params->yuv_format;
- if (params->src_resize == 0)
- {
- params->output.width = params->source.width;
- params->output.height = params->source.height;
- }
- if (params->yuv_format == YUV400) // reset bitdepth of chroma for 400 content
- {
- params->source.bit_depth[1] = 8;
- params->output.bit_depth[1] = 8;
- params->source.width_cr = 0;
- params->source.height_cr = 0;
- params->output.width_cr = 0;
- params->output.height_cr = 0;
- }
- else
- {
- params->source.width_cr = (params->source.width * mb_width_cr [params->yuv_format]) >> 4;
- params->source.height_cr = (params->source.height * mb_height_cr[params->yuv_format]) >> 4;
- params->output.width_cr = (params->output.width * mb_width_cr [params->yuv_format]) >> 4;
- params->output.height_cr = (params->output.height * mb_height_cr[params->yuv_format]) >> 4;
- }
- // source size
- params->source.size_cmp[0] = params->source.width * params->source.height;
- params->source.size_cmp[1] = params->source.width_cr * params->source.height_cr;
- params->source.size_cmp[2] = params->source.size_cmp[1];
- params->source.size = params->source.size_cmp[0] + params->source.size_cmp[1] + params->source.size_cmp[2];
- params->source.mb_width = params->source.width / MB_BLOCK_SIZE;
- params->source.mb_height = params->source.height / MB_BLOCK_SIZE;
- // output size (excluding padding)
- params->output.size_cmp[0] = params->output.width * params->source.height;
- params->output.size_cmp[1] = params->output.width_cr * params->source.height_cr;
- params->output.size_cmp[2] = params->output.size_cmp[1];
- params->output.size = params->output.size_cmp[0] + params->output.size_cmp[1] + params->output.size_cmp[2];
- params->output.mb_width = params->output.width / MB_BLOCK_SIZE;
- params->output.mb_height = params->output.height / MB_BLOCK_SIZE;
- // both chroma components have the same bitdepth
- params->source.bit_depth[2] = params->source.bit_depth[1];
- params->output.bit_depth[2] = params->output.bit_depth[1];
- // if no bitdepth rescale ensure bitdepth is same
- if (params->src_BitDepthRescale == 0)
- {
- params->output.bit_depth[0] = params->source.bit_depth[0];
- params->output.bit_depth[1] = params->source.bit_depth[1];
- params->output.bit_depth[2] = params->source.bit_depth[2];
- }
- updateMaxValue(¶ms->source);
- updateMaxValue(¶ms->output);
- }
- /*!
- ***********************************************************************
- * brief
- * Parse the command line parameters and read the config files.
- * param ac
- * number of command line parameters
- * param av
- * command line parameters
- ***********************************************************************
- */
- void Configure (int ac, char *av[])
- {
- char *content = NULL;
- int CLcount, ContentLen, NumberParams;
- char *filename=DEFAULTCONFIGFILENAME;
- memset (&configinput, 0, sizeof (InputParameters));
- //Set default parameters.
- printf ("Setting Default Parameters...n");
- InitEncoderParams();
- // Process default config file
- CLcount = 1;
- if (ac==2)
- {
- if (0 == strncmp (av[1], "-h", 2))
- {
- JMHelpExit();
- }
- }
- if (ac>=3)
- {
- if (0 == strncmp (av[1], "-d", 2))
- {
- filename=av[2];
- CLcount = 3;
- }
- if (0 == strncmp (av[1], "-h", 2))
- {
- JMHelpExit();
- }
- }
- printf ("Parsing Configfile %s", filename);
- content = GetConfigFileContent (filename);
- if (NULL==content)
- error (errortext, 300);
- ParseContent (content, strlen(content));
- printf ("n");
- free (content);
- // Parse the command line
- while (CLcount < ac)
- {
- if (0 == strncmp (av[CLcount], "-h", 2))
- {
- JMHelpExit();
- }
- if (0 == strncmp (av[CLcount], "-f", 2)) // A file parameter?
- {
- content = GetConfigFileContent (av[CLcount+1]);
- if (NULL==content)
- error (errortext, 300);
- printf ("Parsing Configfile %s", av[CLcount+1]);
- ParseContent (content, strlen (content));
- printf ("n");
- free (content);
- CLcount += 2;
- }
- else
- {
- if (0 == strncmp (av[CLcount], "-p", 2)) // A config change?
- {
- // Collect all data until next parameter (starting with -<x> (x is any character)),
- // put it into content, and parse content.
- CLcount++;
- ContentLen = 0;
- NumberParams = CLcount;
- // determine the necessary size for content
- while (NumberParams < ac && av[NumberParams][0] != '-')
- ContentLen += strlen (av[NumberParams++]); // Space for all the strings
- ContentLen += 1000; // Additional 1000 bytes for spaces and