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mpv/libvo/vo_pnm.c

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/*
* PPM/PGM/PGMYUV video output driver
*
* copyright (C) 2004, 2005 Ivo van Poorten
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/* ------------------------------------------------------------------------- */
/* Global Includes */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/stat.h>
/* ------------------------------------------------------------------------- */
/* Local Includes */
#include "config.h"
#include "subopt-helper.h"
#include "mp_msg.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "mplayer.h" /* for exit_player_bad() */
#include "osdep/io.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 const vo_info_t info=
{
"PPM/PGM/PGMYUV file",
"pnm",
"Ivo van Poorten (ivop@euronet.nl)",
""
};
const 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 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.
*/
static void pnm_write_error(void) {
mp_tmsg(MSGT_VO, MSGL_ERR, "%s: Error writing file.\n", info.short_name);
exit_player_bad(_("Fatal 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 int preinit(const char *arg)
{
int ppm_type = 0, pgm_type = 0, pgmyuv_type = 0,
raw_mode = 0, ascii_mode = 0;
const opt_t subopts[] = {
{"ppm", OPT_ARG_BOOL, &ppm_type, NULL},
{"pgm", OPT_ARG_BOOL, &pgm_type, NULL},
{"pgmyuv", OPT_ARG_BOOL, &pgmyuv_type, NULL},
{"raw", OPT_ARG_BOOL, &raw_mode, NULL},
{"ascii", OPT_ARG_BOOL, &ascii_mode, NULL},
{"outdir", OPT_ARG_MSTRZ, &pnm_outdir, NULL},
{"subdirs", OPT_ARG_MSTRZ, &pnm_subdirs, NULL},
{"maxfiles", OPT_ARG_INT, &pnm_maxfiles, int_pos},
{NULL, 0, NULL, NULL}
};
const char *info_message = NULL;
mp_msg(MSGT_VO, MSGL_V, "%s: %s\n", info.short_name,
"Parsing suboptions.");
pnm_maxfiles = 1000;
pnm_outdir = strdup(".");
pnm_subdirs = NULL;
if (subopt_parse(arg, subopts) != 0) {
return -1;
}
pnm_type = PNM_TYPE_PPM;
pnm_mode = PNM_RAW_MODE;
if (pgmyuv_type) pnm_type = PNM_TYPE_PGMYUV;
if (pgm_type) pnm_type = PNM_TYPE_PGM;
if (ppm_type) pnm_type = PNM_TYPE_PPM;
if (ascii_mode) pnm_mode = PNM_ASCII_MODE;
if (raw_mode) pnm_mode = PNM_RAW_MODE;
switch (pnm_mode) {
case PNM_ASCII_MODE:
info_message = _("ASCII mode enabled.");
break;
case PNM_RAW_MODE:
info_message = _("Raw mode enabled.");
break;
}
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name, info_message);
switch (pnm_type) {
case PNM_TYPE_PPM:
info_message = _("Will write PPM files.");
break;
case PNM_TYPE_PGM:
info_message = _("Will write PGM files.");
break;
case PNM_TYPE_PGMYUV:
info_message = _("Will write PGMYUV files.");
break;
}
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name, info_message);
mp_msg(MSGT_VO, MSGL_V, "%s: %s\n", info.short_name,
"Suboptions parsed OK.");
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.
*/
static void pnm_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 ( mp_stat(buf, &stat_p ) < 0 ) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n", info.short_name,
_("This error has occurred"), strerror(errno) );
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %s\n", info.short_name,
_("Unable to access"), buf);
exit_player_bad(_("Fatal error"));
}
if ( !S_ISDIR(stat_p.st_mode) ) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %s\n", info.short_name,
buf, _("already exists, but is not a directory."));
exit_player_bad(_("Fatal error"));
}
if ( !(stat_p.st_mode & S_IWUSR) ) {
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n", info.short_name,
buf, _("Output directory already exists, but is not writable."));
exit_player_bad(_("Fatal error"));
}
if (strcmp(buf, ".") != 0) {
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s - %s\n", info.short_name,
buf, _("Output directory already exists and is writable."));
}
break;
default:
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n", info.short_name,
_("This error has occurred"), strerror(errno) );
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n", info.short_name,
buf, _("Unable to create output directory."));
exit_player_bad(_("Fatal error"));
} /* end switch */
} else if ( verbose ) {
mp_msg(MSGT_VO, MSGL_INFO, "%s: %s - %s\n", info.short_name,
buf, _("Output directory successfully created."));
} /* 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 int config(uint32_t width, uint32_t height, uint32_t d_width,
uint32_t d_height, uint32_t flags, 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");
}
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.
*/
static 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];
unsigned 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.
*/
static void pnm_write_image(mp_image_t *mpi)
{
static int 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 supplied to video output driver\n", info.short_name );
exit_player_bad(_("Fatal 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,
"Unable to create output file.");
mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n",
info.short_name, "This error has occurred",
strerror(errno) );
exit_player_bad(_("Fatal 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 int draw_frame(uint8_t *src[])
{
mp_msg(MSGT_VO, MSGL_V, "%s: draw_frame() is called!\n", info.short_name);
return -1;
}
/* ------------------------------------------------------------------------- */
static int draw_slice(uint8_t *src[], int stride[], int w, int h,
int x, int y)
{
return 0;
}
/* ------------------------------------------------------------------------- */
static int 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 int 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)
{
free(pnm_subdirs);
pnm_subdirs = NULL;
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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