rv34: Fix buffer size used for MC of B frames after a resolution change

[ffmpeg] / libavcodec / tta.c

diff --git a/libavcodec/tta.c b/libavcodec/tta.c
index 81217f57d20a608e09ecb62971957f229289677b..5a11436ca9fa39266722cf5d30aed15603ed5bdf 100644 (file)
--- a/libavcodec/tta.c
+++ b/libavcodec/tta.c
@@ -2,29 +2,29 @@
  * TTA (The Lossless True Audio) decoder
  * Copyright (c) 2006 Alex Beregszaszi
  *
- * 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
  * TTA (The Lossless True Audio) decoder
- * (www.true-audio.com or tta.corecodec.org)
+ * @see http://www.true-audio.com/
+ * @see http://tta.corecodec.org/
  * @author Alex Beregszaszi
- *
  */
 
 #define ALT_BITSTREAM_READER_LE
@@ -66,23 +66,6 @@ typedef struct TTAContext {
     TTAChannel *ch_ctx;
 } TTAContext;
 
-#if 0
-static inline int shift_1(int i)
-{
-    if (i < 32)
-        return 1 << i;
-    else
-        return 0x80000000; // 16 << 31
-}
-
-static inline int shift_16(int i)
-{
-    if (i < 28)
-        return 16 << i;
-    else
-        return 0x80000000; // 16 << 27
-}
-#else
 static const uint32_t shift_1[] = {
     0x00000001, 0x00000002, 0x00000004, 0x00000008,
     0x00000010, 0x00000020, 0x00000040, 0x00000080,
@@ -97,7 +80,6 @@ static const uint32_t shift_1[] = {
 };
 
 static const uint32_t * const shift_16 = shift_1 + 4;
-#endif
 
 static const int32_t ttafilter_configs[4][2] = {
     {10, 1},
@@ -216,7 +198,7 @@ static av_cold int tta_decode_init(AVCodecContext * avctx)
     if (avctx->extradata_size < 30)
         return -1;
 
-    init_get_bits(&s->gb, avctx->extradata, avctx->extradata_size);
+    init_get_bits(&s->gb, avctx->extradata, avctx->extradata_size * 8);
     if (show_bits_long(&s->gb, 32) == AV_RL32("TTA1"))
     {
         /* signature */
@@ -246,17 +228,18 @@ static av_cold int tta_decode_init(AVCodecContext * avctx)
 
         if (s->is_float)
         {
-            avctx->sample_fmt = SAMPLE_FMT_FLT;
-            av_log(s->avctx, AV_LOG_ERROR, "Unsupported sample format. Please contact the developers.\n");
+            avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
+            av_log_ask_for_sample(s->avctx, "Unsupported sample format.\n");
             return -1;
         }
         else switch(s->bps) {
-//            case 1: avctx->sample_fmt = SAMPLE_FMT_U8; break;
-            case 2: avctx->sample_fmt = SAMPLE_FMT_S16; break;
-//            case 3: avctx->sample_fmt = SAMPLE_FMT_S24; break;
-            case 4: avctx->sample_fmt = SAMPLE_FMT_S32; break;
+//            case 1: avctx->sample_fmt = AV_SAMPLE_FMT_U8; break;
+            case 2: avctx->sample_fmt = AV_SAMPLE_FMT_S16; break;
+//            case 3: avctx->sample_fmt = AV_SAMPLE_FMT_S24; break;
+            case 4: avctx->sample_fmt = AV_SAMPLE_FMT_S32; break;
             default:
-                av_log(s->avctx, AV_LOG_ERROR, "Invalid/unsupported sample format. Please contact the developers.\n");
+                av_log_ask_for_sample(s->avctx,
+                                      "Invalid/unsupported sample format.\n");
                 return -1;
         }
 
@@ -388,19 +371,6 @@ static int tta_decode_frame(AVCodecContext *avctx,
             }
             *predictor = *p;
 
-#if 0
-            // extract 32bit float from last two int samples
-            if (s->is_float && ((p - data) & 1)) {
-                uint32_t neg = *p & 0x80000000;
-                uint32_t hi = *(p - 1);
-                uint32_t lo = abs(*p) - 1;
-
-                hi += (hi || lo) ? 0x3f80 : 0;
-                // SWAP16: swap all the 16 bits
-                *(p - 1) = (hi << 16) | SWAP16(lo) | neg;
-            }
-#endif
-
             /*if ((get_bits_count(&s->gb)+7)/8 > buf_size)
             {
                 av_log(NULL, AV_LOG_INFO, "overread!!\n");
@@ -449,21 +419,19 @@ static int tta_decode_frame(AVCodecContext *avctx,
 static av_cold int tta_decode_close(AVCodecContext *avctx) {
     TTAContext *s = avctx->priv_data;
 
-    if (s->decode_buffer)
-        av_free(s->decode_buffer);
+    av_free(s->decode_buffer);
     av_freep(&s->ch_ctx);
 
     return 0;
 }
 
-AVCodec tta_decoder = {
-    "tta",
-    AVMEDIA_TYPE_AUDIO,
-    CODEC_ID_TTA,
-    sizeof(TTAContext),
-    tta_decode_init,
-    NULL,
-    tta_decode_close,
-    tta_decode_frame,
+AVCodec ff_tta_decoder = {
+    .name           = "tta",
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = CODEC_ID_TTA,
+    .priv_data_size = sizeof(TTAContext),
+    .init           = tta_decode_init,
+    .close          = tta_decode_close,
+    .decode         = tta_decode_frame,
     .long_name = NULL_IF_CONFIG_SMALL("True Audio (TTA)"),
 };