TGA_BW            154 libavcodec/targa.c         avctx->pix_fmt = ((compr & (~TGA_RLE)) == TGA_BW) ? AV_PIX_FMT_GRAY8 : AV_PIX_FMT_PAL8;
TGA_BW            124 libavcodec/targaenc.c         pkt->data[2]  = TGA_BW;     /* uncompressed grayscale image */