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b8c10b5b26
mpv/libvo/vo_jpeg.c
ivo b8c10b5b26 This patch moves the directory creation code to a separate function. I have 
tried to re-use as much code as possible, to reduce the size of the patch.
All duplicate code is removed, resulting in my first patch that actually
decreases the size of the binary by about 700 bytes :-)


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13284 b3059339-0415-0410-9bf9-f77b7e298cf2
2004-09-08 01:11:16 +00:00

503 lines
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/* ------------------------------------------------------------------------- */
/*
* vo_jpeg.c, JPEG Renderer for MPlayer
*
*
* Changelog
*
* Original version: Copyright 2002 by Pontscho (pontscho@makacs.poliod.hu)
* 2003-04-25 Spring cleanup -- Alex
* 2004-08-04 Added multiple subdirectory support -- Ivo (ivop@euronet.nl)
* 2004-09-01 Cosmetics update -- Ivo
* 2004-09-05 Added suboptions parser -- Ivo
*
*/
/* ------------------------------------------------------------------------- */
/* Global Includes */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <jpeglib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <math.h> /* for log10() */
/* ------------------------------------------------------------------------- */
/* Local Includes */
#include "config.h"
#include "mp_msg.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "mplayer.h" /* for exit_player() */
#include "help_mp.h"
/* ------------------------------------------------------------------------- */
/* Defines */
/* Used for temporary buffers to store file- and pathnames */
#define BUFLENGTH 512
/* ------------------------------------------------------------------------- */
/* Info */
static vo_info_t info=
{
"JPEG file",
"jpeg",
"Zoltan Ponekker (pontscho@makacs.poliod.hu)",
""
};
LIBVO_EXTERN (jpeg)
/* ------------------------------------------------------------------------- */
/* Global Variables */
static int image_width;
static int image_height;
int jpeg_baseline = 1;
int jpeg_progressive_mode = 0;
int jpeg_optimize = 100;
int jpeg_smooth = 0;
int jpeg_quality = 75;
char *jpeg_outdir = ".";
char *jpeg_subdirs = NULL;
int jpeg_maxfiles = 1000;
static int framenum = 0;
/* ------------------------------------------------------------------------- */
/** \brief Create a directory.
*
* This function creates a directory. If it already exists, it tests if
* it's a directory and not something else, and if it is, it tests whether
* the directory is writable or not.
*
* \param buf Pointer to directory name.
* \param verbose Verbose on success. If verbose is non-zero, it will print
* a message if it was successful in creating the directory.
*
* \return nothing In case anything fails, the player will exit. If it
* returns, everything went well.
*/
void jpeg_mkdir(char *buf, int verbose) {
struct stat stat_p;
if ( mkdir(buf, 0755) < 0 ) {
switch (errno) { /* use switch in case other errors need to be caught
and handled in the future */
case EEXIST:
if ( stat(buf, &stat_p ) < 0 ) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n", info.short_name,
MSGTR_VO_JPEG_GenericError, strerror(errno) );
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %s\n", info.short_name,
MSGTR_VO_JPEG_UnableToAccess,buf);
exit_player(MSGTR_Exit_error);
}
if ( !S_ISDIR(stat_p.st_mode) ) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %s\n", info.short_name,
buf, MSGTR_VO_JPEG_ExistsButNoDirectory);
exit_player(MSGTR_Exit_error);
}
if ( !(stat_p.st_mode & S_IWUSR) ) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n", info.short_name,
buf, MSGTR_VO_JPEG_DirExistsButNotWritable);
exit_player(MSGTR_Exit_error);
}
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s - %s\n", info.short_name,
buf, MSGTR_VO_JPEG_DirExistsAndIsWritable);
break;
default:
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n", info.short_name,
MSGTR_VO_JPEG_GenericError, strerror(errno) );
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n", info.short_name,
buf, MSGTR_VO_JPEG_CantCreateDirectory);
exit_player(MSGTR_Exit_error);
} /* end switch */
} else if ( verbose ) {
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s - %s\n", info.short_name,
buf, MSGTR_VO_JPEG_DirectoryCreateSuccess);
} /* end if */
}
/* ------------------------------------------------------------------------- */
static uint32_t config(uint32_t width, uint32_t height, uint32_t d_width,
uint32_t d_height, uint32_t fullscreen, char *title,
uint32_t format)
{
char buf[BUFLENGTH];
/* Create outdir. */
snprintf(buf, BUFLENGTH, "%s", jpeg_outdir);
jpeg_mkdir(buf, 1); /* This function only returns if creation was
successful. If not, the player will exit. */
image_height = height;
image_width = width;
return 0;
}
/* ------------------------------------------------------------------------- */
static uint32_t jpeg_write(uint8_t * name, uint8_t * buffer)
{
FILE *outfile;
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
JSAMPROW row_pointer[1];
int row_stride;
if ( !buffer ) return 1;
if ( (outfile = fopen(name, "wb") ) == NULL ) {
mp_msg(MSGT_VO, MSGL_ERR, "\n%s: %s\n", info.short_name,
MSGTR_VO_JPEG_CantCreateFile);
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n",
info.short_name, MSGTR_VO_JPEG_GenericError,
strerror(errno) );
exit_player(MSGTR_Exit_error);
}
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_compress(&cinfo);
jpeg_stdio_dest(&cinfo, outfile);
cinfo.image_width = image_width;
cinfo.image_height = image_height;
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults(&cinfo);
jpeg_set_quality(&cinfo,jpeg_quality, jpeg_baseline);
cinfo.optimize_coding = jpeg_optimize;
cinfo.smoothing_factor = jpeg_smooth;
if ( jpeg_progressive_mode ) {
jpeg_simple_progression(&cinfo);
}
jpeg_start_compress(&cinfo, TRUE);
row_stride = image_width * 3;
while (cinfo.next_scanline < cinfo.image_height) {
row_pointer[0] = &buffer[cinfo.next_scanline * row_stride];
(void)jpeg_write_scanlines(&cinfo, row_pointer,1);
}
jpeg_finish_compress(&cinfo);
fclose(outfile);
jpeg_destroy_compress(&cinfo);
return 0;
}
/* ------------------------------------------------------------------------- */
static uint32_t draw_frame(uint8_t *src[])
{
static uint32_t framecounter = 0, subdircounter = 0;
char buf[BUFLENGTH];
static char subdirname[BUFLENGTH] = "";
struct stat stat_p;
/* Start writing to new subdirectory after a certain amount of frames */
if ( framecounter == jpeg_maxfiles ) {
framecounter = 0;
}
/* If framecounter is zero (or reset to zero), increment subdirectory
* number and create the subdirectory.
* If jpeg_subdirs is not set, do nothing and resort to old behaviour. */
if ( !framecounter && jpeg_subdirs ) {
snprintf(subdirname, BUFLENGTH, "%s%08d", jpeg_subdirs,
++subdircounter);
snprintf(buf, BUFLENGTH, "%s/%s", jpeg_outdir, subdirname);
jpeg_mkdir(buf, 0); /* This function only returns if creation was
successful. If not, the player will exit. */
}
framenum++;
/* snprintf the full pathname of the outputfile */
snprintf(buf, BUFLENGTH, "%s/%s/%08d.jpg", jpeg_outdir, subdirname,
framenum);
framecounter++;
return jpeg_write(buf, src[0]);
}
/* ------------------------------------------------------------------------- */
static void draw_osd(void)
{
}
/* ------------------------------------------------------------------------- */
static void flip_page (void)
{
}
/* ------------------------------------------------------------------------- */
static uint32_t draw_slice(uint8_t *src[], int stride[], int w, int h,
int x, int y)
{
return 0;
}
/* ------------------------------------------------------------------------- */
static uint32_t query_format(uint32_t format)
{
if (format == IMGFMT_RGB24) {
return VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW;
}
return 0;
}
/* ------------------------------------------------------------------------- */
static void uninit(void)
{
}
/* ------------------------------------------------------------------------- */
static void check_events(void)
{
}
/* ------------------------------------------------------------------------- */
static uint32_t preinit(const char *arg)
{
char *buf; /* buf is used to store parsed string values */
int length; /* length is used when calculating the length of buf */
int value; /* storage for parsed integer values */
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_JPEG_ParsingSuboptions);
if (arg) {
while (*arg != '\0') {
if (!strncmp(arg, ":", 1)) {
arg++;
continue; /* multiple ':' is not really an error */
} if (!strncmp(arg, "progressive", 11)) {
arg += 11;
jpeg_progressive_mode = 1;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_JPEG_ProgressiveJPEG);
} else if (!strncmp(arg, "noprogressive", 13)) {
arg += 13;
jpeg_progressive_mode = 0;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_JPEG_NoProgressiveJPEG);
} else if (!strncmp(arg, "baseline", 8)) {
arg += 8;
jpeg_baseline = 1;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_JPEG_BaselineJPEG);
} else if (!strncmp(arg, "nobaseline", 10)) {
arg += 10;
jpeg_baseline = 0;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_JPEG_NoBaselineJPEG);
} else if (!strncmp(arg, "optimize=", 9)) {
arg += 9;
if (sscanf(arg, "%d", &value) == 1) {
if ( (value < 0 ) || (value > 100) ) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s %s.\n",
info.short_name, "optimize",
MSGTR_VO_JPEG_ValueOutOfRange, "[0-100]");
exit_player(MSGTR_Exit_error);
} else {
jpeg_optimize = value;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s --> %d\n",
info.short_name, "optimize", value);
}
} else {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n",
info.short_name, "optimize",
MSGTR_VO_JPEG_NoValueSpecified);
exit_player(MSGTR_Exit_error);
}
/* only here if value is set and sane */
if (value) {
arg += (int)log10(value) + 1;
} else {
arg++; /* log10(0) fails */
}
} else if (!strncmp(arg, "smooth=", 7)) {
arg += 7;
if (sscanf(arg, "%d", &value) == 1 ) {
if ( (value < 0) || (value > 100) ) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s %s.\n",
info.short_name, "smooth",
MSGTR_VO_JPEG_ValueOutOfRange, "[0-100]");
exit_player(MSGTR_Exit_error);
} else {
jpeg_smooth = value;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s --> %d\n",
info.short_name, "smooth", value);
}
} else {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n",
info.short_name, "smooth",
MSGTR_VO_JPEG_NoValueSpecified);
exit_player(MSGTR_Exit_error);
}
/* only here if value is set and sane */
if (value) {
arg += (int)log10(value) + 1;
} else {
arg++; /* log10(0) fails */
}
} else if (!strncmp(arg, "quality=", 8)) {
arg += 8;
if (sscanf(arg, "%d", &value) == 1) {
if ( (value < 0) || (value > 100) ) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s %s.\n",
info.short_name, "quality",
MSGTR_VO_JPEG_ValueOutOfRange, "[0-100]");
exit_player(MSGTR_Exit_error);
} else {
jpeg_quality = value;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s --> %d\n",
info.short_name, "quality", value);
}
} else {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n",
info.short_name, "quality",
MSGTR_VO_JPEG_NoValueSpecified);
exit_player(MSGTR_Exit_error);
}
/* only here if value is set and sane */
if (value) {
arg += (int)log10(value) + 1;
} else {
arg++; /* log10(0) fails */
}
} else if (!strncmp(arg, "outdir=", 7)) {
arg += 7;
buf = malloc(strlen(arg)+1); /* maximum length possible */
if (!buf) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s\n", info.short_name,
MSGTR_MemAllocFailed);
exit_player(MSGTR_Exit_error);
}
if (sscanf(arg, "%[^:]", buf) == 1) {
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s --> %s\n",
info.short_name, "outdir", buf);
length = strlen(buf);
arg += length;
jpeg_outdir = malloc(length+1);
strncpy(jpeg_outdir, buf, length+1);
free(buf);
} else {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n",
info.short_name, "outdir",
MSGTR_VO_JPEG_NoValueSpecified);
exit_player(MSGTR_Exit_error);
}
} else if (!strncmp(arg, "subdirs=", 8)) {
arg += 8;
buf = malloc(strlen(arg)+1); /* maximum length possible */
if (!buf) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s\n", info.short_name,
MSGTR_MemAllocFailed);
exit_player(MSGTR_Exit_error);
}
if (sscanf(arg, "%[^:]", buf) == 1) {
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s --> %s\n",
info.short_name, "subdirs", buf);
length = strlen(buf);
arg += length;
jpeg_subdirs = malloc(length+1);
strncpy(jpeg_subdirs, buf, length+1);
free(buf);
} else {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n",
info.short_name, "subdirs",
MSGTR_VO_JPEG_NoValueSpecified);
exit_player(MSGTR_Exit_error);
}
} else if (!strncmp(arg, "maxfiles=", 9)) {
arg += 9;
if (sscanf(arg, "%d", &value) == 1) {
if (value < 1) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s %s.\n",
info.short_name, "maxfiles",
MSGTR_VO_JPEG_ValueOutOfRange, ">=1");
exit_player(MSGTR_Exit_error);
} else {
jpeg_maxfiles = value;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s --> %d\n",
info.short_name, "maxfiles", value);
}
} else {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n",
info.short_name, "maxfiles",
MSGTR_VO_JPEG_NoValueSpecified);
exit_player(MSGTR_Exit_error);
}
/* only here if value is set and sane */
if (value) {
arg += (int)log10(value) + 1;
} else {
arg++; /* log10(0) fails */
}
} else {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %-20s...\n", info.short_name,
MSGTR_VO_JPEG_UnknownOptions, arg);
exit_player(MSGTR_Exit_error);
}
} /* end while */
} /* endif */
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_JPEG_SuboptionsParsedOK);
return 0;
}
/* ------------------------------------------------------------------------- */
static uint32_t control(uint32_t request, void *data, ...)
{
switch (request) {
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
}
return VO_NOTIMPL;
}
/* ------------------------------------------------------------------------- */
#undef BUFLENGTH
/* ------------------------------------------------------------------------- */
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