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/*
* export_ppm.c
*
* Copyright (C) Thomas Oestreich - June 2001
*
* This file is part of transcode, a video stream processing tool
*
* transcode 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, or (at your option)
* any later version.
*
* transcode 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#define MOD_NAME "export_ppm.so"
#define MOD_VERSION "v0.1.1 (2002-02-14)"
#define MOD_CODEC "(video) PPM/PGM | (audio) MPEG/AC3/PCM"
#include "transcode.h"
#include "avilib/avilib.h"
#include "aud_aux.h"
#include "libtcvideo/tcvideo.h"
#include <stdio.h>
#include <stdlib.h>
static int verbose_flag=TC_QUIET;
static int capability_flag=TC_CAP_YUV|TC_CAP_RGB|TC_CAP_PCM|TC_CAP_AC3|TC_CAP_AUD|TC_CAP_YUV422;
#define MOD_PRE ppm
#include "export_def.h"
static char buf[256];
static char buf2[64];
static uint8_t *tmp_buffer; //[SIZE_RGB_FRAME];
static int codec, width, height, row_bytes;
static int counter=0;
static const char *prefix="frame";
static const char *type;
static int interval=1;
static unsigned int int_counter=0;
static TCVHandle tcvhandle;
/* ------------------------------------------------------------
*
* init codec
*
* ------------------------------------------------------------*/
MOD_init
{
/* set the 'spit-out-frame' interval */
interval = vob->frame_interval;
if(param->flag == TC_VIDEO) {
/* this supports output of 4:2:0 YUV material, ie CODEC_YUV */
if(vob->im_v_codec == CODEC_YUV) {
width = vob->ex_v_width;
height = vob->ex_v_height;
row_bytes = BPP/8 * vob->ex_v_width;
codec = CODEC_YUV;
if (!tmp_buffer)
tmp_buffer = malloc (vob->ex_v_width*vob->ex_v_height*3);
if (!tmp_buffer)
return -1;
tcvhandle = tcv_init();
if (!tcvhandle) {
tc_log_error(MOD_NAME, "tcv_init() failed");
return -1;
}
}
/* this supports output of 4:2:2 YUV material, ie CODEC_YUV422 */
if(vob->im_v_codec == CODEC_YUV422) {
/* size of the exported image */
width = vob->ex_v_width;
height = vob->ex_v_height;
/* bytes per scan line (aka row) */
row_bytes = BPP/8 * vob->ex_v_width;
codec = CODEC_YUV422;
/* this is for the output, one byte each for R, G and B per pixel */
if (!tmp_buffer)
tmp_buffer = malloc (vob->ex_v_width*vob->ex_v_height*3);
if (!tmp_buffer)
return -1;
tcvhandle = tcv_init();
if (!tcvhandle) {
tc_log_error(MOD_NAME, "tcv_init() failed");
return -1;
}
}
/* source stream encoding format not supported */
return(0);
}
/* audio is not supported in PPM image format... */
if(param->flag == TC_AUDIO) return(tc_audio_init(vob, verbose_flag));
// invalid flag
return(TC_EXPORT_ERROR);
}
/* ------------------------------------------------------------
*
* open outputfile
*
* ------------------------------------------------------------*/
MOD_open
{
if(param->flag == TC_VIDEO) {
// video
switch(vob->im_v_codec) {
case CODEC_YUV:
case CODEC_YUV422:
case CODEC_RGB:
if(vob->video_out_file!=NULL && strcmp(vob->video_out_file,"/dev/null")!=0) prefix=vob->video_out_file;
type = (vob->decolor) ? "P5":"P6";
tc_snprintf(buf, sizeof(buf), "%s\n#(%s-v%s) \n%d %d 255\n", type, PACKAGE, VERSION, vob->ex_v_width, vob->ex_v_height);
break;
default:
tc_log_warn(MOD_NAME, "codec not supported");
return(TC_EXPORT_ERROR);
break;
}
return(TC_EXPORT_OK);
}
if(param->flag == TC_AUDIO) {
tc_log_warn(MOD_NAME, "Usage of this module for audio encoding is deprecated.");
tc_log_warn(MOD_NAME, "Consider switch to export_tcaud module.");
return(tc_audio_open(vob, NULL));
}
// invalid flag
return(TC_EXPORT_ERROR);
}
/* ------------------------------------------------------------
*
* encode and export
*
* ------------------------------------------------------------*/
MOD_encode
{
FILE *fd;
char *out_buffer = param->buffer;
int n, out_size = param->size;
if ((++int_counter-1) % interval != 0)
return (0);
if(param->flag == TC_VIDEO) {
if(codec==CODEC_YUV) {
tcv_convert(tcvhandle, param->buffer, tmp_buffer, width, height,
IMG_YUV_DEFAULT, IMG_RGB24);
out_buffer = tmp_buffer;
out_size = height * 3 *width;
}
if(codec==CODEC_YUV422) {
tcv_convert(tcvhandle, param->buffer, tmp_buffer, width, height,
IMG_YUV422P, IMG_RGB24);
out_buffer = tmp_buffer;
out_size = height * 3 *width;
}
if(strncmp(type, "P5", 2)==0) {
out_size /= 3;
//tcv_convert(tcvhandle, tmp_buffer, tmp_buffer, width, height,
// IMG_RGB24, IMG_GRAY8);
for (n=0; n<out_size; ++n) out_buffer[n] = out_buffer[3*n];
tc_snprintf(buf2, sizeof(buf2), "%s%06d.pgm", prefix, counter++);
} else
tc_snprintf(buf2, sizeof(buf2), "%s%06d.ppm", prefix, counter++);
if((fd = fopen(buf2, "w"))==NULL) {
tc_log_perror(MOD_NAME, "fopen file");
return(TC_EXPORT_ERROR);
}
if(fwrite(buf, strlen(buf), 1, fd) != 1) {
tc_log_perror(MOD_NAME, "write header");
return(TC_EXPORT_ERROR);
}
if(fwrite(out_buffer, out_size, 1, fd) != 1) {
tc_log_perror(MOD_NAME, "write frame");
return(TC_EXPORT_ERROR);
}
fclose(fd);
return(0);
}
if(param->flag == TC_AUDIO) return(tc_audio_encode(param->buffer, param->size, NULL));
// invalid flag
return(TC_EXPORT_ERROR);
}
/* ------------------------------------------------------------
*
* stop encoder
*
* ------------------------------------------------------------*/
MOD_stop
{
if(param->flag == TC_VIDEO) return(0);
if(param->flag == TC_AUDIO) return(tc_audio_stop());
free(tmp_buffer);
tmp_buffer = NULL;
tcv_free(tcvhandle);
tcvhandle = 0;
return(TC_EXPORT_ERROR);
}
/* ------------------------------------------------------------
*
* close outputfiles
*
* ------------------------------------------------------------*/
MOD_close
{
if(param->flag == TC_AUDIO) return(tc_audio_close());
if(param->flag == TC_VIDEO) return(0);
return(TC_EXPORT_ERROR);
}
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