H.264: disable 2tap qpel with CODEC_FLAG2_FAST and >8-bit

[ffmpeg] / libavcodec / libopenjpeg.c

diff --git a/libavcodec/libopenjpeg.c b/libavcodec/libopenjpeg.c
index a3035fd290d591d746dcc827ce9db6366aaefc8c..342dcd98ac13cbe5a27ca8871a9313a528ddd1a0 100644 (file)
--- a/libavcodec/libopenjpeg.c
+++ b/libavcodec/libopenjpeg.c
@@ -2,28 +2,29 @@
  * JPEG 2000 decoding support via OpenJPEG
  * Copyright (c) 2009 Jaikrishnan Menon <realityman@gmx.net>
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
-* @file libavcodec/libopenjpeg.c
+* @file
 * JPEG 2000 decoder using libopenjpeg
 */
 
+#include "libavutil/imgutils.h"
 #include "avcodec.h"
 #include "libavutil/intreadwrite.h"
 #define  OPJ_STATIC
@@ -39,12 +40,12 @@ typedef struct {
 
 static int check_image_attributes(opj_image_t *image)
 {
-    return(image->comps[0].dx == image->comps[1].dx &&
+    return image->comps[0].dx == image->comps[1].dx &&
            image->comps[1].dx == image->comps[2].dx &&
            image->comps[0].dy == image->comps[1].dy &&
            image->comps[1].dy == image->comps[2].dy &&
            image->comps[0].prec == image->comps[1].prec &&
-           image->comps[1].prec == image->comps[2].prec);
+           image->comps[1].prec == image->comps[2].prec;
 }
 
 static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
@@ -78,9 +79,13 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
     if((AV_RB32(buf) == 12) &&
        (AV_RB32(buf + 4) == JP2_SIG_TYPE) &&
        (AV_RB32(buf + 8) == JP2_SIG_VALUE)) {
-         dec = opj_create_decompress(CODEC_JP2);
+        dec = opj_create_decompress(CODEC_JP2);
     } else {
-         dec = opj_create_decompress(CODEC_J2K);
+        // If the AVPacket contains a jp2c box, then skip to
+        // the starting byte of the codestream.
+        if (AV_RB32(buf + 4) == AV_RB32("jp2c"))
+            buf += 8;
+        dec = opj_create_decompress(CODEC_J2K);
     }
 
     if(!dec) {
@@ -89,6 +94,7 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
     }
     opj_set_event_mgr((opj_common_ptr)dec, NULL, NULL);
 
+    ctx->dec_params.cp_reduce = avctx->lowres;
     // Tie decoder with decoding parameters
     opj_setup_decoder(dec, &ctx->dec_params);
     stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size);
@@ -106,9 +112,9 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
         opj_destroy_decompress(dec);
         return -1;
     }
-    width  = image->comps[0].w;
-    height = image->comps[0].h;
-    if(avcodec_check_dimensions(avctx, width, height) < 0) {
+    width  = image->comps[0].w << avctx->lowres;
+    height = image->comps[0].h << avctx->lowres;
+    if(av_image_check_size(width, height, 0, avctx) < 0) {
         av_log(avctx, AV_LOG_ERROR, "%dx%d dimension invalid.\n", width, height);
         goto done;
     }
@@ -126,7 +132,7 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
                  }
                  break;
         case 4:  has_alpha = 1;
-                 avctx->pix_fmt = PIX_FMT_RGB32;
+                 avctx->pix_fmt = PIX_FMT_RGBA;
                  break;
         default: av_log(avctx, AV_LOG_ERROR, "%d components unsupported.\n", image->numcomps);
                  goto done;
@@ -144,10 +150,10 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
         adjust[x] = FFMAX(image->comps[x].prec - 8, 0);
     }
 
-    for(y = 0; y < height; y++) {
-        index = y*width;
+    for(y = 0; y < avctx->height; y++) {
+        index = y*avctx->width;
         img_ptr = picture->data[0] + y*picture->linesize[0];
-        for(x = 0; x < width; x++, index++) {
+        for(x = 0; x < avctx->width; x++, index++) {
             *img_ptr++ = image->comps[0].data[index] >> adjust[0];
             if(image->numcomps > 2 && check_image_attributes(image)) {
                 *img_ptr++ = image->comps[1].data[index] >> adjust[1];
@@ -178,15 +184,16 @@ static av_cold int libopenjpeg_decode_close(AVCodecContext *avctx)
 }
 
 
-AVCodec libopenjpeg_decoder = {
+AVCodec ff_libopenjpeg_decoder = {
     "libopenjpeg",
-    CODEC_TYPE_VIDEO,
+    AVMEDIA_TYPE_VIDEO,
     CODEC_ID_JPEG2000,
     sizeof(LibOpenJPEGContext),
     libopenjpeg_decode_init,
     NULL,
     libopenjpeg_decode_close,
     libopenjpeg_decode_frame,
-    NULL,
+    CODEC_CAP_DR1,
+    .max_lowres = 5,
     .long_name = NULL_IF_CONFIG_SMALL("OpenJPEG based JPEG 2000 decoder"),
 } ;