#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "rle.h"
+#include "targa.h"
typedef struct TargaContext {
AVFrame picture;
if(avctx->width > 0xffff || avctx->height > 0xffff) {
av_log(avctx, AV_LOG_ERROR, "image dimensions too large\n");
- return -1;
+ return AVERROR(EINVAL);
}
picsize = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
if(buf_size < picsize + 45) {
av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
- return -1;
+ return AVERROR(EINVAL);
}
p->pict_type= FF_I_TYPE;
memset(outbuf, 0, 12);
AV_WL16(outbuf+12, avctx->width);
AV_WL16(outbuf+14, avctx->height);
- outbuf[17] = 0x20; /* origin is top-left. no alpha */
+ /* image descriptor byte: origin is always top-left, bits 0-3 specify alpha */
+ outbuf[17] = 0x20 | (avctx->pix_fmt == PIX_FMT_BGRA ? 8 : 0);
- /* TODO: support alpha channel */
switch(avctx->pix_fmt) {
case PIX_FMT_GRAY8:
- outbuf[2] = 3; /* uncompressed grayscale image */
+ outbuf[2] = TGA_BW; /* uncompressed grayscale image */
outbuf[16] = 8; /* bpp */
break;
case PIX_FMT_RGB555LE:
- outbuf[2] = 2; /* uncompresses true-color image */
+ outbuf[2] = TGA_RGB; /* uncompresses true-color image */
outbuf[16] = 16; /* bpp */
break;
case PIX_FMT_BGR24:
- outbuf[2] = 2; /* uncompressed true-color image */
+ outbuf[2] = TGA_RGB; /* uncompressed true-color image */
outbuf[16] = 24; /* bpp */
break;
+ case PIX_FMT_BGRA:
+ outbuf[2] = TGA_RGB; /* uncompressed true-color image */
+ outbuf[16] = 32; /* bpp */
+ break;
default:
av_log(avctx, AV_LOG_ERROR, "Pixel format '%s' not supported.\n",
avcodec_get_pix_fmt_name(avctx->pix_fmt));
- return -1;
+ return AVERROR(EINVAL);
}
bpp = outbuf[16] >> 3;
return 0;
}
-AVCodec targa_encoder = {
+AVCodec ff_targa_encoder = {
.name = "targa",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_TARGA,
.priv_data_size = sizeof(TargaContext),
.init = targa_encode_init,
.encode = targa_encode_frame,
- .pix_fmts= (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_RGB555LE, PIX_FMT_GRAY8, PIX_FMT_NONE},
+ .pix_fmts= (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_BGRA, PIX_FMT_RGB555LE, PIX_FMT_GRAY8, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("Truevision Targa image"),
};