From aec966958ce03821d974463b5146ae04f10654cd Mon Sep 17 00:00:00 2001 From: Stefano Sabatini Date: Wed, 13 Oct 2010 13:11:45 +0000 Subject: [PATCH] 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 --- libavcodec/targaenc.c | 10 +++++++--- 1 file 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"), };