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-rw-r--r--libavcodec/wmv2enc.c44
1 files changed, 26 insertions, 18 deletions
diff --git a/libavcodec/wmv2enc.c b/libavcodec/wmv2enc.c
index e4e51d3..0499f0a 100644
--- a/libavcodec/wmv2enc.c
+++ b/libavcodec/wmv2enc.c
@@ -1,20 +1,20 @@
/*
- * Copyright (c) 2002 The Libav Project
+ * Copyright (c) 2002 The FFmpeg Project
*
- * 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
*/
@@ -62,7 +62,9 @@ static av_cold int wmv2_encode_init(AVCodecContext *avctx)
ff_wmv2_common_init(w);
avctx->extradata_size = 4;
- avctx->extradata = av_mallocz(avctx->extradata_size + 10);
+ avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (!avctx->extradata)
+ return AVERROR(ENOMEM);
encode_ext_header(w);
return 0;
@@ -85,10 +87,10 @@ int ff_wmv2_encode_picture_header(MpegEncContext *s, int picture_number)
w->abt_type = 0;
w->j_type = 0;
- assert(s->flipflop_rounding);
+ av_assert0(s->flipflop_rounding);
if (s->pict_type == AV_PICTURE_TYPE_I) {
- assert(s->no_rounding == 1);
+ av_assert0(s->no_rounding == 1);
if (w->j_type_bit)
put_bits(&s->pb, 1, w->j_type);
@@ -109,16 +111,7 @@ int ff_wmv2_encode_picture_header(MpegEncContext *s, int picture_number)
put_bits(&s->pb, 2, SKIP_TYPE_NONE);
ff_msmpeg4_code012(&s->pb, cbp_index = 0);
- if (s->qscale <= 10) {
- int map[3] = { 0, 2, 1 };
- w->cbp_table_index = map[cbp_index];
- } else if (s->qscale <= 20) {
- int map[3] = { 1, 0, 2 };
- w->cbp_table_index = map[cbp_index];
- } else {
- int map[3] = { 2, 1, 0 };
- w->cbp_table_index = map[cbp_index];
- }
+ w->cbp_table_index = wmv2_get_cbp_table_index(s, cbp_index);
if (w->mspel_bit)
put_bits(&s->pb, 1, s->mspel);
@@ -171,10 +164,12 @@ void ff_wmv2_encode_mb(MpegEncContext *s, int16_t block[6][64],
ff_wmv2_inter_table[w->cbp_table_index][cbp + 64][1],
ff_wmv2_inter_table[w->cbp_table_index][cbp + 64][0]);
+ s->misc_bits += get_bits_diff(s);
/* motion vector */
ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
ff_msmpeg4_encode_motion(s, motion_x - pred_x,
motion_y - pred_y);
+ s->mv_bits += get_bits_diff(s);
} else {
/* compute cbp */
cbp = 0;
@@ -207,12 +202,24 @@ void ff_wmv2_encode_mb(MpegEncContext *s, int16_t block[6][64],
ff_table_inter_intra[s->h263_aic_dir][1],
ff_table_inter_intra[s->h263_aic_dir][0]);
}
+ s->misc_bits += get_bits_diff(s);
}
for (i = 0; i < 6; i++)
ff_msmpeg4_encode_block(s, block[i], i);
+ if (s->mb_intra)
+ s->i_tex_bits += get_bits_diff(s);
+ else
+ s->p_tex_bits += get_bits_diff(s);
}
+static const AVClass wmv2_class = {
+ .class_name = "wmv2 encoder",
+ .item_name = av_default_item_name,
+ .option = ff_mpv_generic_options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
AVCodec ff_wmv2_encoder = {
.name = "wmv2",
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 8"),
@@ -224,4 +231,5 @@ AVCodec ff_wmv2_encoder = {
.close = ff_mpv_encode_end,
.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
AV_PIX_FMT_NONE },
+ .priv_class = &wmv2_class,
};
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