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mpv/libvo/vo_jpeg.c

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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 = NULL;
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_GenericError, strerror(errno) );
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %s\n", info.short_name,
MSGTR_VO_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_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_DirExistsButNotWritable);
exit_player(MSGTR_Exit_error);
}
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s - %s\n", info.short_name,
buf, MSGTR_VO_DirExistsAndIsWritable);
break;
default:
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n", info.short_name,
MSGTR_VO_GenericError, strerror(errno) );
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n", info.short_name,
buf, MSGTR_VO_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_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_CantCreateFile);
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n",
info.short_name, MSGTR_VO_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] = "";
/* 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 ) {
subdircounter++;
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)
{
if (jpeg_subdirs) {
free(jpeg_subdirs);
jpeg_subdirs = NULL;
}
if (jpeg_outdir) {
free(jpeg_outdir);
jpeg_outdir = NULL;
}
}
/* ------------------------------------------------------------------------- */
static void check_events(void)
{
}
/* ------------------------------------------------------------------------- */
/** \brief Memory allocation failed.
*
* This function can be called if memory allocations failed. It prints a
* message and exits the player.
*
* \return none It never returns.
*/
void jpeg_malloc_failed(void) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s\n", info.short_name,
MSGTR_MemAllocFailed);
exit_player(MSGTR_Exit_error);
}
/* ------------------------------------------------------------------------- */
static uint32_t preinit(const char *arg)
{
char *buf; /* buf is used to store parsed string values */
int value; /* storage for parsed integer values */
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_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_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_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_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_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_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_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) jpeg_malloc_failed(); /* print msg and exit */
if (sscanf(arg, "%[^:]", buf) == 1) {
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s --> %s\n",
info.short_name, "outdir", buf);
arg += strlen(buf);
jpeg_outdir = strdup(buf);
if (!jpeg_outdir) jpeg_malloc_failed();
free(buf);
} else {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n",
info.short_name, "outdir",
MSGTR_VO_NoValueSpecified);
exit_player(MSGTR_Exit_error);
}
} else if (!strncmp(arg, "subdirs=", 8)) {
arg += 8;
buf = malloc(strlen(arg)+1); /* maximum length possible */
if (!buf) jpeg_malloc_failed();
if (sscanf(arg, "%[^:]", buf) == 1) {
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s --> %s\n",
info.short_name, "subdirs", buf);
arg += strlen(buf);
jpeg_subdirs = strdup(buf);
if (!jpeg_subdirs) jpeg_malloc_failed();
free(buf);
} else {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n",
info.short_name, "subdirs",
MSGTR_VO_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_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_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_UnknownSuboptions, arg);
exit_player(MSGTR_Exit_error);
}
} /* end while */
} /* endif */
/* If jpeg_outdir is not set by an option, resort to default of "." */
if (!jpeg_outdir) {
jpeg_outdir = strdup(".");
}
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_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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