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authorStefano Sabatini <stefano.sabatini-lala@poste.it>2010-10-13 13:11:45 +0000
committerStefano Sabatini <stefano.sabatini-lala@poste.it>2010-10-13 13:11:45 +0000
commitaec966958ce03821d974463b5146ae04f10654cd (patch)
tree412d580067a0d87a039a0ce32bdacdae7f1657fd /libavcodec
parent54b2a4238cca294e4d74583499c961956c6cdc6b (diff)
downloadffmpeg-aec966958ce03821d974463b5146ae04f10654cd.tar.gz
Add support for PIX_FMT_RGBA in the targa encoder.
Patch sponsored by Animoto. Originally committed as revision 25470 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/targaenc.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/libavcodec/targaenc.c b/libavcodec/targaenc.c
index a179baad3c..09da7270bb 100644
--- a/libavcodec/targaenc.c
+++ b/libavcodec/targaenc.c
@@ -97,9 +97,9 @@ static int targa_encode_frame(AVCodecContext *avctx,
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] = TGA_BW; /* uncompressed grayscale image */
@@ -113,6 +113,10 @@ static int targa_encode_frame(AVCodecContext *avctx,
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));
@@ -161,6 +165,6 @@ AVCodec targa_encoder = {
.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"),
};