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mpv/libvo/vo_pnm.c
ivo 766abce5a0 New generic 'portable anymap' video output driver. It supports portable 
pixmaps and graymaps in both raw and ASCII mode. Besides PPM and PGM, it
can also output PGMYUV files which are PGM files with the U and V plane
appended to the bottom of the Y image (bottom left and bottom right). All
files can be written to the current directory, to a specified output directory
or to multiple subdirectories if the filesystem can't handle the amount of
files in one directory anymore.

Note: This driver is not yet activated and will not be compiled and linked
to libvo. A separate patch will take care of that. This is just for adding
the file to the repository.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13395 b3059339-0415-0410-9bf9-f77b7e298cf2
2004-09-20 00:54:57 +00:00

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/* ------------------------------------------------------------------------- */
/*
* vo_pnm.c, PPM/PGM/PGMYUV Video Output Driver for MPlayer
*
*
* Written by Ivo van Poorten. (GPL)2004
*
*
* Changelog
*
* 2004-09-09 First draft.
* 2004-09-16 Second draft. It now acts on VOCTRL_DRAW_IMAGE and does not
* maintain a local copy of the image if the format is YV12.
* Speed improvement and uses less memory.
*
*
*/
/* ------------------------------------------------------------------------- */
/* Global Includes */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/stat.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
#define PNM_ASCII_MODE 0
#define PNM_RAW_MODE 1
#define PNM_TYPE_PPM 0
#define PNM_TYPE_PGM 1
#define PNM_TYPE_PGMYUV 2
#define PNM_LINE_OF_ASCII "%03d %03d %03d %03d %03d %03d %03d %03d %03d %03d %03d %03d %03d %03d %03d\n"
#define PNM_LINE15(a,b) a[b], a[b+1], a[b+2], a[b+3], a[b+4], a[b+5], a[b+6], \
a[b+7], a[b+8], a[b+9], a[b+10], a[b+11], a[b+12], \
a[b+13], a[b+14]
/* ------------------------------------------------------------------------- */
/* Info */
static vo_info_t info=
{
"PPM/PGM/PGMYUV file",
"pnm",
"Ivo van Poorten (ivop@euronet.nl)",
""
};
LIBVO_EXTERN (pnm)
/* ------------------------------------------------------------------------- */
/* Global Variables */
int pnm_type = PNM_TYPE_PPM;
int pnm_mode = PNM_RAW_MODE;
char *pnm_outdir = NULL;
char *pnm_subdirs = NULL;
int pnm_maxfiles = 1000;
char *pnm_file_extension = NULL;
/* ------------------------------------------------------------------------- */
/** \brief Memory allocation failed.
*
* The video output driver failed to allocate a block of memory it needed.
* It displays a message and exits the player.
*
* \return nothing It does not return.
*/
void pnm_malloc_failed(void) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s\n", info.short_name,
MSGTR_MemAllocFailed);
exit_player(MSGTR_Exit_error);
}
/* ------------------------------------------------------------------------- */
/** \brief An error occured while writing to a file.
*
* The program failed to write data to a file.
* It displays a message and exits the player.
*
* \return nothing It does not return.
*/
void pnm_write_error(void) {
mp_msg(MSGT_VO, MSGL_ERR, MSGTR_ErrorWritingFile, info.short_name);
exit_player(MSGTR_Exit_error);
}
/* ------------------------------------------------------------------------- */
/** \brief Pre-initialisation.
*
* This function is called before initialising the video output driver. It
* parses all suboptions and sets variables accordingly. If an error occurs
* (like an option being out of range, not having any value or an unknown
* option is stumbled upon) the player will exit.
*
* \param arg A string containing all the suboptions passed to the video
* output driver.
*
* \return 0 All went well.
*/
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, "ascii", 5)) {
arg += 5;
pnm_mode = PNM_ASCII_MODE;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_PNM_ASCIIMode);
} else if (!strncmp(arg, "raw", 3)) {
arg += 3;
pnm_mode = PNM_RAW_MODE;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_PNM_RawMode);
} else if (!strncmp(arg, "ppm", 3)) {
arg += 3;
pnm_type = PNM_TYPE_PPM;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_PNM_PPMType);
} else if (!strncmp(arg, "pgmyuv", 6)) {
arg += 6;
pnm_type = PNM_TYPE_PGMYUV;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_PNM_PGMYUVType);
} else if (!strncmp(arg, "pgm", 3)) {
arg += 3;
pnm_type = PNM_TYPE_PGM;
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_PNM_PGMType);
} else if (!strncmp(arg, "outdir=", 7)) {
arg += 7;
buf = malloc(strlen(arg)+1); /* maximum length possible */
if (!buf) {
pnm_malloc_failed(); /* message and exit_player! */
}
if (sscanf(arg, "%[^:]", buf) == 1) {
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s --> %s\n",
info.short_name, "outdir", buf);
arg += strlen(buf);
pnm_outdir = strdup(buf);
if (!pnm_outdir) pnm_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) {
pnm_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);
pnm_subdirs = strdup(buf);
if (!pnm_subdirs) pnm_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 {
pnm_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 pnm_outdir is not set by an option, resort to default of "." */
if (!pnm_outdir) {
pnm_outdir = strdup(".");
if (!pnm_outdir) pnm_malloc_failed();
}
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
MSGTR_VO_SuboptionsParsedOK);
return 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 pnm_mkdir(char *buf, int verbose) {
struct stat stat_p;
/* Silly MING32 bug workaround */
#ifndef __MINGW32__
if ( mkdir(buf, 0755) < 0 ) {
#else
if ( mkdir(buf) < 0 ) {
#endif
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 */
}
/* ------------------------------------------------------------------------- */
/** \brief Configure the video output driver.
*
* This functions configures the video output driver. It determines the
* width and height of the image(s) and creates the output directory.
*
* \return 0 All went well.
*/
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];
if (vo_config_count > 0 ) { /* Already configured */
return 0;
}
/* Create outdir. */
snprintf(buf, BUFLENGTH, "%s", pnm_outdir);
pnm_mkdir(buf, 1); /* This function only returns if creation was
successful. If not, the player will exit. */
if (pnm_type == PNM_TYPE_PPM) {
pnm_file_extension = strdup("ppm");
} else if (pnm_type == PNM_TYPE_PGM) {
pnm_file_extension = strdup("pgm");
} else if (pnm_type == PNM_TYPE_PGMYUV) {
pnm_file_extension = strdup("pgmyuv");
}
if (!pnm_file_extension) pnm_malloc_failed();
return 0;
}
/* ------------------------------------------------------------------------- */
/** \brief Write PNM file to output file
*
* This function writes PPM, PGM or PGMYUV data to an output file, depending
* on which type was selected on the commandline. pnm_type and pnm_mode are
* global variables. Depending on which mode was selected, it will write
* a RAW or an ASCII file.
*
* \param outfile Filedescriptor of output file.
* \param mpi The image to write.
*
* \return none The player will exit if anything goes wrong.
*/
void pnm_write_pnm(FILE *outfile, mp_image_t *mpi)
{
uint32_t w = mpi->w;
uint32_t h = mpi->h;
uint8_t *rgbimage = mpi->planes[0];
uint8_t *planeY = mpi->planes[0];
uint8_t *planeU = mpi->planes[1];
uint8_t *planeV = mpi->planes[2];
uint8_t *curline;
uint32_t strideY = mpi->stride[0];
uint32_t strideU = mpi->stride[1];
uint32_t strideV = mpi->stride[2];
int i, j;
if (pnm_mode == PNM_RAW_MODE) {
if (pnm_type == PNM_TYPE_PPM) {
if ( fprintf(outfile, "P6\n%d %d\n255\n", w, h) < 0 )
pnm_write_error();
if ( fwrite(rgbimage, w * 3, h, outfile) < h ) pnm_write_error();
} else if (pnm_type == PNM_TYPE_PGM) {
if ( fprintf(outfile, "P5\n%d %d\n255\n", w, h) < 0 )
pnm_write_error();
for (i=0; i<h; i++) {
if ( fwrite(planeY + i * strideY, w, 1, outfile) < 1 )
pnm_write_error();
}
} else if (pnm_type == PNM_TYPE_PGMYUV) {
if ( fprintf(outfile, "P5\n%d %d\n255\n", w, h*3/2) < 0 )
pnm_write_error();
for (i=0; i<h; i++) {
if ( fwrite(planeY + i * strideY, w, 1, outfile) < 1 )
pnm_write_error();
}
w = w / 2;
h = h / 2;
for (i=0; i<h; i++) {
if ( fwrite(planeU + i * strideU, w, 1, outfile) < 1 )
pnm_write_error();
if ( fwrite(planeV + i * strideV, w, 1, outfile) < 1 )
pnm_write_error();
}
} /* end if pnm_type */
} else if (pnm_mode == PNM_ASCII_MODE) {
if (pnm_type == PNM_TYPE_PPM) {
if ( fprintf(outfile, "P3\n%d %d\n255\n", w, h) < 0 )
pnm_write_error();
for (i=0; i <= w * h * 3 - 16 ; i += 15) {
if ( fprintf(outfile, PNM_LINE_OF_ASCII,
PNM_LINE15(rgbimage,i) ) < 0 ) pnm_write_error();
}
while (i < (w * h * 3) ) {
if ( fprintf(outfile, "%03d ", rgbimage[i]) < 0 )
pnm_write_error();
i++;
}
if ( fputc('\n', outfile) < 0 ) pnm_write_error();
} else if ( (pnm_type == PNM_TYPE_PGM) ||
(pnm_type == PNM_TYPE_PGMYUV) ) {
/* different header for pgm and pgmyuv. pgmyuv is 'higher' */
if (pnm_type == PNM_TYPE_PGM) {
if ( fprintf(outfile, "P2\n%d %d\n255\n", w, h) < 0 )
pnm_write_error();
} else { /* PNM_TYPE_PGMYUV */
if ( fprintf(outfile, "P2\n%d %d\n255\n", w, h*3/2) < 0 )
pnm_write_error();
}
/* output Y plane for both PGM and PGMYUV */
for (j=0; j<h; j++) {
curline = planeY + strideY * j;
for (i=0; i <= w - 16; i+=15) {
if ( fprintf(outfile, PNM_LINE_OF_ASCII,
PNM_LINE15(curline,i) ) < 0 ) pnm_write_error();
}
while (i < w ) {
if ( fprintf(outfile, "%03d ", curline[i]) < 0 )
pnm_write_error();
i++;
}
if ( fputc('\n', outfile) < 0 ) pnm_write_error();
}
/* also output U and V planes fpr PGMYUV */
if (pnm_type == PNM_TYPE_PGMYUV) {
w = w / 2;
h = h / 2;
for (j=0; j<h; j++) {
curline = planeU + strideU * j;
for (i=0; i<= w-16; i+=15) {
if ( fprintf(outfile, PNM_LINE_OF_ASCII,
PNM_LINE15(curline,i) ) < 0 ) pnm_write_error();
}
while (i < w ) {
if ( fprintf(outfile, "%03d ", curline[i]) < 0 )
pnm_write_error();
i++;
}
if ( fputc('\n', outfile) < 0 ) pnm_write_error();
curline = planeV + strideV * j;
for (i=0; i<= w-16; i+=15) {
if ( fprintf(outfile, PNM_LINE_OF_ASCII,
PNM_LINE15(curline,i) ) < 0 ) pnm_write_error();
}
while (i < w ) {
if ( fprintf(outfile, "%03d ", curline[i]) < 0 )
pnm_write_error();
i++;
}
if ( fputc('\n', outfile) < 0 ) pnm_write_error();
}
}
} /* end if pnm_type */
} /* end if pnm_mode */
}
/* ------------------------------------------------------------------------- */
/** \brief Write a PNM image.
*
* This function gets called first if a PNM image has to be written to disk.
* It contains the subdirectory framework and it calls pnm_write_pnm() to
* actually write the image to disk.
*
* \param mpi The image to write.
*
* \return none The player will exit if anything goes wrong.
*/
void pnm_write_image(mp_image_t *mpi)
{
static uint32_t framenum = 0, framecounter = 0, subdircounter = 0;
char buf[BUFLENGTH];
static char subdirname[BUFLENGTH] = "";
FILE *outfile;
if (!mpi) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: No image data suplied to video output driver\n", info.short_name );
exit_player(MSGTR_Exit_error);
}
/* Start writing to new subdirectory after a certain amount of frames */
if ( framecounter == pnm_maxfiles ) {
framecounter = 0;
}
/* If framecounter is zero (or reset to zero), increment subdirectory
* number and create the subdirectory.
* If pnm_subdirs is not set, do nothing. */
if ( !framecounter && pnm_subdirs ) {
subdircounter++;
snprintf(subdirname, BUFLENGTH, "%s%08d", pnm_subdirs, subdircounter);
snprintf(buf, BUFLENGTH, "%s/%s", pnm_outdir, subdirname);
pnm_mkdir(buf, 0); /* This function only returns if creation was
successful. If not, the player will exit. */
}
framenum++;
framecounter++;
/* snprintf the full pathname of the outputfile */
snprintf(buf, BUFLENGTH, "%s/%s/%08d.%s", pnm_outdir, subdirname,
framenum, pnm_file_extension);
if ( (outfile = fopen(buf, "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);
}
pnm_write_pnm(outfile, mpi);
fclose(outfile);
}
/* ------------------------------------------------------------------------- */
static uint32_t draw_image(mp_image_t *mpi)
{
if (mpi->flags & MP_IMGFLAG_PLANAR) { /* Planar */
if (mpi->flags & MP_IMGFLAG_YUV) { /* Planar YUV */
pnm_write_image(mpi);
return VO_TRUE;
} else { /* Planar RGB */
return VO_FALSE;
}
} else { /* Packed */
if (mpi->flags & MP_IMGFLAG_YUV) { /* Packed YUV */
return VO_FALSE;
} else { /* Packed RGB */
pnm_write_image(mpi);
return VO_TRUE;
}
}
return VO_FALSE;
}
/* ------------------------------------------------------------------------- */
static uint32_t draw_frame(uint8_t *src[])
{
mp_msg(MSGT_VO, MSGL_V, "%s: draw_frame() is called!\n", info.short_name);
return -1;
}
/* ------------------------------------------------------------------------- */
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)
{
/* Ensure that for PPM we get Packed RGB and for PGM(YUV) we get
* Planar YUV */
if (pnm_type == PNM_TYPE_PPM) {
if (format == IMGFMT_RGB24) {
return VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW;
}
} else if ( (pnm_type == PNM_TYPE_PGM) || (pnm_type == PNM_TYPE_PGMYUV) ) {
if (format == IMGFMT_YV12) {
return VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW;
}
}
return 0;
}
/* ------------------------------------------------------------------------- */
static uint32_t control(uint32_t request, void *data, ...)
{
switch (request) {
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
case VOCTRL_DRAW_IMAGE:
return draw_image(data);
}
return VO_NOTIMPL;
}
/* ------------------------------------------------------------------------- */
static void uninit(void)
{
if (pnm_subdirs) {
free(pnm_subdirs);
pnm_subdirs = NULL;
}
if (pnm_outdir) {
free(pnm_outdir);
pnm_outdir = NULL;
}
}
/* ------------------------------------------------------------------------- */
static void check_events(void)
{
}
/* ------------------------------------------------------------------------- */
static void draw_osd(void)
{
}
/* ------------------------------------------------------------------------- */
static void flip_page (void)
{
}
/* ------------------------------------------------------------------------- */
#undef BUFLENGTH
#undef PNM_RAW_MODE
#undef PNM_ASCII_MODE
#undef PNM_TYPE_PPM
#undef PNM_TYPE_PGM
#undef PNM_TYPE_PGMYUV
/* ------------------------------------------------------------------------- */
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