avcodec/proresdec : add 12b decoding

based on patch by Kieran Kunhya

ticket 7163

libavcodec/proresdec2.c

@@ -155,15 +155,23 @@ static av_cold int decode_init(AVCodecContext *avctx)
         break;
     case MKTAG('a','p','4','h'):
         avctx->profile = FF_PROFILE_PRORES_4444;
+        avctx->bits_per_raw_sample = 12;
         break;
     case MKTAG('a','p','4','x'):
         avctx->profile = FF_PROFILE_PRORES_XQ;
+        avctx->bits_per_raw_sample = 12;
         break;
     default:
         avctx->profile = FF_PROFILE_UNKNOWN;
         av_log(avctx, AV_LOG_WARNING, "Unknown prores profile %d\n", avctx->codec_tag);
     }
 
+    if (avctx->bits_per_raw_sample == 10) {
+        av_log(avctx, AV_LOG_DEBUG, "Auto bitdepth precision. Use 10b decoding based on codec tag");
+    } else { /* 12b */
+        av_log(avctx, AV_LOG_DEBUG, "Auto bitdepth precision. Use 12b decoding based on codec tag");
+    }
+
     ff_blockdsp_init(&ctx->bdsp, avctx);
     ret = ff_proresdsp_init(&ctx->prodsp, avctx);
     if (ret < 0) {
@@ -211,6 +219,7 @@ static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
 
     width  = AV_RB16(buf + 8);
     height = AV_RB16(buf + 10);
+
     if (width != avctx->width || height != avctx->height) {
         av_log(avctx, AV_LOG_ERROR, "picture resolution change: %dx%d -> %dx%d\n",
                avctx->width, avctx->height, width, height);
@@ -237,9 +246,17 @@ static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
     }
 
     if (ctx->alpha_info) {
-        avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P10 : AV_PIX_FMT_YUVA422P10;
+        if (avctx->bits_per_raw_sample == 10) {
+            avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P10 : AV_PIX_FMT_YUVA422P10;
+        } else { /* 12b */
+            avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUVA444P12 : AV_PIX_FMT_YUVA422P12;
+        }
     } else {
-        avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV422P10;
+        if (avctx->bits_per_raw_sample == 10) {
+            avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV422P10;
+        } else { /* 12b */
+            avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P12 : AV_PIX_FMT_YUV422P12;
+        }
     }
 
     avctx->color_primaries = buf[14];
@@ -585,6 +602,7 @@ static void decode_slice_alpha(ProresContext *ctx,
     }
 
     block = blocks;
+
     for (i = 0; i < 16; i++) {
         memcpy(dst, block, 16 * blocks_per_slice * sizeof(*dst));
         dst   += dst_stride >> 1;
@@ -606,6 +624,7 @@ static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int
     LOCAL_ALIGNED_16(int16_t, qmat_chroma_scaled,[64]);
     int mb_x_shift;
     int ret;
+    uint16_t val_no_chroma;
 
     slice->ret = -1;
     //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
@@ -643,7 +662,8 @@ static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int
         chroma_stride = pic->linesize[1] << 1;
     }
 
-    if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10) {
+    if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P10 ||
+        avctx->pix_fmt == AV_PIX_FMT_YUV444P12 || avctx->pix_fmt == AV_PIX_FMT_YUVA444P12) {
         mb_x_shift = 5;
         log2_chroma_blocks_per_mb = 2;
     } else {
@@ -684,10 +704,15 @@ static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int
     else {
         size_t mb_max_x = slice->mb_count << (mb_x_shift - 1);
         size_t i, j;
+        if (avctx->bits_per_raw_sample == 10) {
+            val_no_chroma = 511;
+        } else { /* 12b */
+            val_no_chroma = 511 * 4;
+        }
         for (i = 0; i < 16; ++i)
             for (j = 0; j < mb_max_x; ++j) {
-                *(uint16_t*)(dest_u + (i * chroma_stride) + (j << 1)) = 511;
-                *(uint16_t*)(dest_v + (i * chroma_stride) + (j << 1)) = 511;
+                *(uint16_t*)(dest_u + (i * chroma_stride) + (j << 1)) = val_no_chroma;
+                *(uint16_t*)(dest_v + (i * chroma_stride) + (j << 1)) = val_no_chroma;
             }
     }
 

tests/fate/prores.mak

@@ -15,10 +15,10 @@ fate-prores-422:       CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/pror
 fate-prores-422_hq:    CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/prores/Sequence_1-Apple_ProRes_422_HQ.mov -pix_fmt yuv422p10le
 fate-prores-422_lt:    CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/prores/Sequence_1-Apple_ProRes_422_LT.mov -pix_fmt yuv422p10le
 fate-prores-422_proxy: CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/prores/Sequence_1-Apple_ProRes_422_Proxy.mov -pix_fmt yuv422p10le
-fate-prores-alpha:     CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/prores/Sequence_1-Apple_ProRes_with_Alpha.mov -pix_fmt yuva444p10le
-fate-prores-alpha_skip: CMD = framecrc -flags +bitexact -skip_alpha 1 -i $(TARGET_SAMPLES)/prores/Sequence_1-Apple_ProRes_with_Alpha.mov -pix_fmt yuv444p10le
-fate-prores-transparency: CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/prores/prores4444_with_transparency.mov -pix_fmt yuva444p10le
-fate-prores-transparency_skip: CMD = framecrc -flags +bitexact -skip_alpha 1 -i $(TARGET_SAMPLES)/prores/prores4444_with_transparency.mov -pix_fmt yuv444p10le
+fate-prores-alpha:     CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/prores/Sequence_1-Apple_ProRes_with_Alpha.mov -pix_fmt yuva444p12le
+fate-prores-alpha_skip: CMD = framecrc -flags +bitexact -skip_alpha 1 -i $(TARGET_SAMPLES)/prores/Sequence_1-Apple_ProRes_with_Alpha.mov -pix_fmt yuv444p12le
+fate-prores-transparency: CMD = framecrc -flags +bitexact -i $(TARGET_SAMPLES)/prores/prores4444_with_transparency.mov -pix_fmt yuva444p12le
+fate-prores-transparency_skip: CMD = framecrc -flags +bitexact -skip_alpha 1 -i $(TARGET_SAMPLES)/prores/prores4444_with_transparency.mov -pix_fmt yuv444p12le
 fate-prores-gray:      CMD = framecrc -flags +bitexact -c:a aac_fixed -i $(TARGET_SAMPLES)/prores/gray.mov -pix_fmt yuv422p10le
 
 #Test bsf prores-metadata

tests/ref/fate/prores-alpha

@@ -3,5 +3,5 @@
 #codec_id 0: rawvideo
 #dimensions 0: 1920x1080
 #sar 0: 0/1
-0,          0,          0,        1, 16588800, 0x8e4dac48
-0,          1,          1,        1, 16588800, 0x8e4dac48
+0,          0,          0,        1, 16588800, 0xb035f658
+0,          1,          1,        1, 16588800, 0xb035f658

tests/ref/fate/prores-alpha_skip

@@ -3,5 +3,5 @@
 #codec_id 0: rawvideo
 #dimensions 0: 1920x1080
 #sar 0: 0/1
-0,          0,          0,        1, 12441600, 0xf11685dd
-0,          1,          1,        1, 12441600, 0xf11685dd
+0,          0,          0,        1, 12441600, 0x65e009b8
+0,          1,          1,        1, 12441600, 0x65e009b8

tests/ref/fate/prores-transparency

@@ -9,6 +9,6 @@
 #sample_rate 1: 48000
 #channel_layout 1: 3
 #channel_layout_name 1: stereo
-0,          0,          0,        1, 16588800, 0x7163b01a
+0,          0,          0,        1, 16588800, 0xcfb3d806
 1,          0,          0,     1024,     4096, 0x00000000
 1,       1024,       1024,      896,     3584, 0x00000000

tests/ref/fate/prores-transparency_skip

@@ -9,6 +9,6 @@
 #sample_rate 1: 48000
 #channel_layout 1: 3
 #channel_layout_name 1: stereo
-0,          0,          0,        1, 12441600, 0x627d1548
+0,          0,          0,        1, 12441600, 0x74f53304
 1,          0,          0,     1024,     4096, 0x00000000
 1,       1024,       1024,      896,     3584, 0x00000000