tiff: support encoding and decoding 64bit images

libavcodec/tiff.c

@@ -273,6 +273,9 @@ static int init_image(TiffContext *s, AVFrame *frame)
     case 483:
         s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE;
         break;
+    case 644:
+        s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE;
+        break;
     default:
         av_log(s->avctx, AV_LOG_ERROR,
                "This format is not supported (bpp=%d, bppcount=%d)\n",
@@ -636,13 +639,15 @@ static int decode_frame(AVCodecContext *avctx,
         dst   = p->data[0];
         soff  = s->bpp >> 3;
         ssize = s->width * soff;
-        if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE) {
+        if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48LE ||
+            s->avctx->pix_fmt == AV_PIX_FMT_RGBA64LE) {
             for (i = 0; i < s->height; i++) {
                 for (j = soff; j < ssize; j += 2)
                     AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
                 dst += stride;
             }
-        } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE) {
+        } else if (s->avctx->pix_fmt == AV_PIX_FMT_RGB48BE ||
+                   s->avctx->pix_fmt == AV_PIX_FMT_RGBA64BE) {
             for (i = 0; i < s->height; i++) {
                 for (j = soff; j < ssize; j += 2)
                     AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));

libavcodec/tiffenc.c

@@ -246,6 +246,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     s->subsampling[1] = 1;
 
     switch (avctx->pix_fmt) {
+    case AV_PIX_FMT_RGBA64LE:
     case AV_PIX_FMT_RGB48LE:
     case AV_PIX_FMT_GRAY16LE:
     case AV_PIX_FMT_RGBA:
@@ -535,7 +536,7 @@ AVCodec ff_tiff_encoder = {
     .encode2        = encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]) {
         AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48LE, AV_PIX_FMT_PAL8,
-        AV_PIX_FMT_RGBA,
+        AV_PIX_FMT_RGBA, AV_PIX_FMT_RGBA64LE,
         AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16LE,
         AV_PIX_FMT_MONOBLACK, AV_PIX_FMT_MONOWHITE,
         AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,

libavcodec/version.h

@@ -30,7 +30,7 @@
 
 #define LIBAVCODEC_VERSION_MAJOR 56
 #define LIBAVCODEC_VERSION_MINOR  6
-#define LIBAVCODEC_VERSION_MICRO  0
+#define LIBAVCODEC_VERSION_MICRO  1
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \