lavc/raw: Support QT b64a ARGB64 rawvideo.

Decoder based on a patch by v0lt, v0lt rambler ru
Fixes ticket #5657.

libavcodec/raw.c

@@ -225,6 +225,7 @@ const PixelFormatTag ff_raw_pix_fmt_tags[] = {
     { AV_PIX_FMT_ABGR,    MKTAG('A', 'B', 'G', 'R') },
     { AV_PIX_FMT_GRAY16BE,MKTAG('b', '1', '6', 'g') },
     { AV_PIX_FMT_RGB48BE, MKTAG('b', '4', '8', 'r') },
+    { AV_PIX_FMT_RGBA64BE,MKTAG('b', '6', '4', 'a') },
 
     /* vlc */
     { AV_PIX_FMT_YUV410P,     MKTAG('I', '4', '1', '0') },

libavcodec/rawdec.c

@@ -453,6 +453,17 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
         }
     }
 
+    if (avctx->codec_tag == AV_RL32("b64a") &&
+        avctx->pix_fmt   == AV_PIX_FMT_RGBA64BE) {
+        uint8_t *dst = frame->data[0];
+        uint64_t v;
+        int x;
+        for (x = 0; x >> 3 < avctx->width * avctx->height; x += 8) {
+            v = AV_RB64(&dst[x]);
+            AV_WB64(&dst[x], v << 16 | v >> 48);
+        }
+    }
+
     if (avctx->field_order > AV_FIELD_PROGRESSIVE) { /* we have interlaced material flagged in container */
         frame->interlaced_frame = 1;
         if (avctx->field_order == AV_FIELD_TT || avctx->field_order == AV_FIELD_TB)

libavcodec/rawenc.c

@@ -69,6 +69,14 @@ static int raw_encode(AVCodecContext *avctx, AVPacket *pkt,
         int x;
         for(x = 1; x < frame->height*frame->width*2; x += 2)
             pkt->data[x] ^= 0x80;
+    } else if (avctx->codec_tag == AV_RL32("b64a") && ret > 0 &&
+        frame->format == AV_PIX_FMT_RGBA64BE) {
+        uint64_t v;
+        int x;
+        for (x = 0; x < frame->height * frame->width; x++) {
+            v = AV_RB64(&pkt->data[8 * x]);
+            AV_WB64(&pkt->data[8 * x], v << 48 | v >> 16);
+        }
     }
     pkt->flags |= AV_PKT_FLAG_KEY;
     *got_packet = 1;

libavcodec/version.h

@@ -29,7 +29,7 @@
 
 #define LIBAVCODEC_VERSION_MAJOR  57
 #define LIBAVCODEC_VERSION_MINOR  51
-#define LIBAVCODEC_VERSION_MICRO 101
+#define LIBAVCODEC_VERSION_MICRO 102
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \

libavformat/isom.c

@@ -86,6 +86,7 @@ const AVCodecTag ff_codec_movvideo_tags[] = {
     { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
+    { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '6', '4', 'a') },
     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'b', 'g') }, /* BOXX */
     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'r', 'g') },
     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'y', 'v') },

libavformat/version.h

@@ -33,7 +33,7 @@
 // Also please add any ticket numbers that you belive might be affected here
 #define LIBAVFORMAT_VERSION_MAJOR  57
 #define LIBAVFORMAT_VERSION_MINOR  46
-#define LIBAVFORMAT_VERSION_MICRO 100
+#define LIBAVFORMAT_VERSION_MICRO 101
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
                                                LIBAVFORMAT_VERSION_MINOR, \