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-rw-r--r--libavcodec/mimic.c23
1 files changed, 11 insertions, 12 deletions
diff --git a/libavcodec/mimic.c b/libavcodec/mimic.c
index 179ffeae14..7b981151fc 100644
--- a/libavcodec/mimic.c
+++ b/libavcodec/mimic.c
@@ -2,20 +2,20 @@
* Copyright (C) 2005 Ole André Vadla Ravnås <oleavr@gmail.com>
* Copyright (C) 2008 Ramiro Polla
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -118,7 +118,8 @@ static av_cold int mimic_decode_end(AVCodecContext *avctx)
MimicContext *ctx = avctx->priv_data;
int i;
- av_free(ctx->swap_buf);
+ av_freep(&ctx->swap_buf);
+ ctx->swap_buf_size = 0;
for (i = 0; i < FF_ARRAY_ELEMS(ctx->frames); i++) {
if (ctx->frames[i].f)
@@ -178,7 +179,7 @@ static int mimic_decode_update_thread_context(AVCodecContext *avctx, const AVCod
for (i = 0; i < FF_ARRAY_ELEMS(dst->frames); i++) {
ff_thread_release_buffer(avctx, &dst->frames[i]);
- if (src->frames[i].f->data[0]) {
+ if (i != src->next_cur_index && src->frames[i].f->data[0]) {
ret = ff_thread_ref_frame(&dst->frames[i], &src->frames[i]);
if (ret < 0)
return ret;
@@ -254,7 +255,7 @@ static int vlc_decode_block(MimicContext *ctx, int num_coeffs, int qscale)
value = get_bits(&ctx->gb, num_bits);
- /* Libav's IDCT behaves somewhat different from the original code, so
+ /* FFmpeg's IDCT behaves somewhat different from the original code, so
* a factor of 4 was added to the input */
coeff = vlcdec_lookup[num_bits][value];
@@ -391,8 +392,8 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
avctx->height = height;
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
for (i = 0; i < 3; i++) {
- ctx->num_vblocks[i] = -((-height) >> (3 + !!i));
- ctx->num_hblocks[i] = width >> (3 + !!i);
+ ctx->num_vblocks[i] = FF_CEIL_RSHIFT(height, 3 + !!i);
+ ctx->num_hblocks[i] = width >> (3 + !!i);
}
} else if (width != ctx->avctx->width || height != ctx->avctx->height) {
avpriv_request_sample(avctx, "Resolution changing");
@@ -408,10 +409,8 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
ctx->frames[ctx->cur_index].f->pict_type = is_pframe ? AV_PICTURE_TYPE_P :
AV_PICTURE_TYPE_I;
if ((res = ff_thread_get_buffer(avctx, &ctx->frames[ctx->cur_index],
- AV_GET_BUFFER_FLAG_REF)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ AV_GET_BUFFER_FLAG_REF)) < 0)
return res;
- }
ctx->next_prev_index = ctx->cur_index;
ctx->next_cur_index = (ctx->cur_index - 1) & 15;