Commit 2c0c00cb authored by Bobby Bingham's avatar Bobby Bingham Committed by Guillaume Poirier
Browse files

Targa (.tga) encoder,

patch by Bobby Bingham % uhmmmm A gmail P com %
Only handles 24-bit BGR and 8-bit grayscale, no RLE at the moment either.
Original thread:
Date: Mar 11, 2007 7:58 PM
Subject: [Ffmpeg-devel] [PATCH] Targa encoder

Originally committed as revision 8411 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 65d0bea8
......@@ -139,6 +139,7 @@ OBJS-$(CONFIG_SVQ1_DECODER) += svq1.o
OBJS-$(CONFIG_SVQ1_ENCODER) += svq1.o
OBJS-$(CONFIG_SVQ3_DECODER) += h264.o
OBJS-$(CONFIG_TARGA_DECODER) += targa.o
OBJS-$(CONFIG_TARGA_ENCODER) += targaenc.o
OBJS-$(CONFIG_THEORA_DECODER) += vp3.o
OBJS-$(CONFIG_TIERTEXSEQVIDEO_DECODER) += tiertexseqv.o
OBJS-$(CONFIG_TIFF_DECODER) += tiff.o lzw.o
......
......@@ -127,7 +127,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(SP5X, sp5x);
REGISTER_ENCDEC (SVQ1, svq1);
REGISTER_DECODER(SVQ3, svq3);
REGISTER_DECODER(TARGA, targa);
REGISTER_ENCDEC (TARGA, targa);
REGISTER_DECODER(THEORA, theora);
REGISTER_DECODER(TIERTEXSEQVIDEO, tiertexseqvideo);
REGISTER_DECODER(TIFF, tiff);
......
......@@ -2203,6 +2203,7 @@ extern AVCodec snow_encoder;
extern AVCodec sonic_encoder;
extern AVCodec sonic_ls_encoder;
extern AVCodec svq1_encoder;
extern AVCodec targa_encoder;
extern AVCodec vcr1_encoder;
extern AVCodec vorbis_encoder;
extern AVCodec wmav1_encoder;
......
/*
* Targa (.tga) image encoder
* Copyright (c) 2007 Bobby Bingham
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "avcodec.h"
static int targa_encode_frame(AVCodecContext *avctx,
unsigned char *outbuf,
int buf_size, void *data){
AVFrame *p = data;
int i, n, linesize;
uint8_t *ptr, *out;
if(avctx->width > 0xffff || avctx->height > 0xffff) {
av_log(avctx, AV_LOG_ERROR, "image dimensions too large\n");
return -1;
}
if(buf_size < avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height) + 45) {
av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
return -1;
}
p->pict_type= FF_I_TYPE;
p->key_frame= 1;
/* zero out the header and only set applicable fields */
memset(outbuf, 0, 11);
AV_WL16(outbuf+12, avctx->width);
AV_WL16(outbuf+14, avctx->height);
outbuf[17] = 0x20; /* origin is top-left. no alpha */
/* TODO: support alpha channel and other bit-depths. and RLE? */
switch(avctx->pix_fmt) {
case PIX_FMT_GRAY8:
outbuf[2] = 3; /* uncompressed grayscale image */
outbuf[16] = 8; /* bpp */
n = avctx->width;
break;
case PIX_FMT_BGR24:
outbuf[2] = 2; /* uncompressed true-color image */
outbuf[16] = 24; /* bpp */
n = 3 * avctx->width;
break;
default:
return -1;
}
out = outbuf + 18; /* skip past the header we just output */
ptr = p->data[0];
linesize = p->linesize[0];
for(i=0; i < avctx->height; i++) {
memcpy(out, ptr, n);
out += n;
ptr += linesize;
}
/* The standard recommends including this section, even if we don't use
* any of the features it affords. TODO: take advantage of the pixel
* aspect ratio and encoder ID fields available? */
memcpy(out, "\0\0\0\0\0\0\0\0TRUEVISION-XFILE.", 26);
return out + 26 - outbuf;
}
static int targa_encode_init(AVCodecContext *avctx)
{
return 0;
}
AVCodec targa_encoder = {
.name = "targa",
.type = CODEC_TYPE_VIDEO,
.id = CODEC_ID_TARGA,
.priv_data_size = 0,
.init = targa_encode_init,
.encode = targa_encode_frame,
.pix_fmts= (enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_GRAY8, -1},
};
......@@ -167,6 +167,7 @@ const AVCodecTag codec_bmp_tags[] = {
{ CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') },
{ CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
{ CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
{ CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') },
{ CODEC_ID_NONE, 0 },
};
......
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