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-rw-r--r--libavcodec/wmaenc.c79
1 files changed, 30 insertions, 49 deletions
diff --git a/libavcodec/wmaenc.c b/libavcodec/wmaenc.c
index 044114b516..969ffc5f83 100644
--- a/libavcodec/wmaenc.c
+++ b/libavcodec/wmaenc.c
@@ -2,29 +2,27 @@
* WMA compatible encoder
* Copyright (c) 2007 Michael Niedermayer
*
- * 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
*/
#include "avcodec.h"
#include "internal.h"
#include "wma.h"
-
-#undef NDEBUG
-#include <assert.h>
+#include "libavutil/avassert.h"
static int encode_init(AVCodecContext * avctx){
@@ -66,7 +64,7 @@ static int encode_init(AVCodecContext * avctx){
AV_WL32(extradata, flags1);
AV_WL16(extradata+4, flags2);
}else
- assert(0);
+ av_assert0(0);
avctx->extradata= extradata;
s->use_exp_vlc = flags2 & 0x0001;
s->use_bit_reservoir = flags2 & 0x0002;
@@ -84,8 +82,7 @@ static int encode_init(AVCodecContext * avctx){
(avctx->sample_rate * 8);
block_align = FFMIN(block_align, MAX_CODED_SUPERFRAME_SIZE);
avctx->block_align = block_align;
- avctx->bit_rate = avctx->block_align * 8LL * avctx->sample_rate /
- s->frame_len;
+
avctx->frame_size = avctx->delay = s->frame_len;
#if FF_API_OLD_ENCODE_AUDIO
@@ -150,7 +147,7 @@ static void encode_exp_vlc(WMACodecContext *s, int ch, const int *exp_param){
q_end = q + s->block_len;
if (s->version == 1) {
last_exp= *exp_param++;
- assert(last_exp-10 >= 0 && last_exp-10 < 32);
+ av_assert0(last_exp-10 >= 0 && last_exp-10 < 32);
put_bits(&s->pb, 5, last_exp - 10);
q+= *ptr++;
}else
@@ -158,7 +155,7 @@ static void encode_exp_vlc(WMACodecContext *s, int ch, const int *exp_param){
while (q < q_end) {
int exp = *exp_param++;
int code = exp - last_exp + 60;
- assert(code >= 0 && code < 120);
+ av_assert1(code >= 0 && code < 120);
put_bits(&s->pb, ff_aac_scalefactor_bits[code], ff_aac_scalefactor_code[code]);
/* XXX: use a table */
q+= *ptr++;
@@ -174,7 +171,7 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
//FIXME remove duplication relative to decoder
if (s->use_variable_block_len) {
- assert(0); //FIXME not implemented
+ av_assert0(0); //FIXME not implemented
}else{
/* fixed block len */
s->next_block_len_bits = s->frame_len_bits;
@@ -221,7 +218,7 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
mult *= mdct_norm;
coefs = src_coefs[ch];
if (s->use_noise_coding && 0) {
- assert(0); //FIXME not implemented
+ av_assert0(0); //FIXME not implemented
} else {
coefs += s->coefs_start;
n = nb_coefs[ch];
@@ -277,13 +274,13 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
if (s->use_exp_vlc) {
encode_exp_vlc(s, ch, fixed_exp);
} else {
- assert(0); //FIXME not implemented
+ av_assert0(0); //FIXME not implemented
// encode_exp_lsp(s, ch);
}
}
}
} else {
- assert(0); //FIXME not implemented
+ av_assert0(0); //FIXME not implemented
}
for (ch = 0; ch < s->avctx->channels; ch++) {
@@ -305,7 +302,7 @@ static int encode_block(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
code= run + s->int_table[tindex][abs_level-1];
}
- assert(code < s->coef_vlcs[tindex]->n);
+ av_assert2(code < s->coef_vlcs[tindex]->n);
put_bits(&s->pb, s->coef_vlcs[tindex]->huffbits[code], s->coef_vlcs[tindex]->huffcodes[code]);
if(code == 0){
@@ -335,7 +332,7 @@ static int encode_frame(WMACodecContext *s, float (*src_coefs)[BLOCK_MAX_SIZE],
init_put_bits(&s->pb, buf, buf_size);
if (s->use_bit_reservoir) {
- assert(0);//FIXME not implemented
+ av_assert0(0);//FIXME not implemented
}else{
if(encode_block(s, src_coefs, total_gain) < 0)
return INT_MAX;
@@ -350,7 +347,7 @@ static int encode_superframe(AVCodecContext *avctx, AVPacket *avpkt,
const AVFrame *frame, int *got_packet_ptr)
{
WMACodecContext *s = avctx->priv_data;
- int i, total_gain, ret;
+ int i, total_gain, ret, error;
s->block_len_bits= s->frame_len_bits; //required by non variable block len
s->block_len = 1 << s->block_len_bits;
@@ -369,46 +366,27 @@ static int encode_superframe(AVCodecContext *avctx, AVPacket *avpkt,
}
}
- if ((ret = ff_alloc_packet(avpkt, 2 * MAX_CODED_SUPERFRAME_SIZE))) {
- av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");
+ if ((ret = ff_alloc_packet2(avctx, avpkt, 2 * MAX_CODED_SUPERFRAME_SIZE)))
return ret;
- }
-#if 1
total_gain= 128;
for(i=64; i; i>>=1){
- int error = encode_frame(s, s->coefs, avpkt->data, avpkt->size,
+ error = encode_frame(s, s->coefs, avpkt->data, avpkt->size,
total_gain - i);
- if(error<0)
+ if(error<=0)
total_gain-= i;
}
-#else
- total_gain= 90;
- best = encode_frame(s, s->coefs, avpkt->data, avpkt->size, total_gain);
- for(i=32; i; i>>=1){
- int scoreL = encode_frame(s, s->coefs, avpkt->data, avpkt->size, total_gain - i);
- int scoreR = encode_frame(s, s->coefs, avpkt->data, avpkt->size, total_gain + i);
- av_log(NULL, AV_LOG_ERROR, "%d %d %d (%d)\n", scoreL, best, scoreR, total_gain);
- if(scoreL < FFMIN(best, scoreR)){
- best = scoreL;
- total_gain -= i;
- }else if(scoreR < best){
- best = scoreR;
- total_gain += i;
- }
- }
-#endif
- if ((i = encode_frame(s, s->coefs, avpkt->data, avpkt->size, total_gain)) >= 0) {
- av_log(avctx, AV_LOG_ERROR, "required frame size too large. please "
- "use a higher bit rate.\n");
- return AVERROR(EINVAL);
- }
- assert((put_bits_count(&s->pb) & 7) == 0);
- while (i++)
+ while(total_gain <= 128 && error > 0)
+ error = encode_frame(s, s->coefs, avpkt->data, avpkt->size, total_gain++);
+ av_assert0((put_bits_count(&s->pb) & 7) == 0);
+ i= avctx->block_align - (put_bits_count(&s->pb)+7)/8;
+ av_assert0(i>=0);
+ while(i--)
put_bits(&s->pb, 8, 'N');
flush_put_bits(&s->pb);
+ av_assert0(put_bits_ptr(&s->pb) - s->pb.buf == avctx->block_align);
if (frame->pts != AV_NOPTS_VALUE)
avpkt->pts = frame->pts - ff_samples_to_time_base(avctx, avctx->delay);
@@ -418,6 +396,7 @@ static int encode_superframe(AVCodecContext *avctx, AVPacket *avpkt,
return 0;
}
+#if CONFIG_WMAV1_ENCODER
AVCodec ff_wmav1_encoder = {
.name = "wmav1",
.type = AVMEDIA_TYPE_AUDIO,
@@ -430,7 +409,8 @@ AVCodec ff_wmav1_encoder = {
AV_SAMPLE_FMT_NONE },
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 1"),
};
-
+#endif
+#if CONFIG_WMAV2_ENCODER
AVCodec ff_wmav2_encoder = {
.name = "wmav2",
.type = AVMEDIA_TYPE_AUDIO,
@@ -443,3 +423,4 @@ AVCodec ff_wmav2_encoder = {
AV_SAMPLE_FMT_NONE },
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
};
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 20:09:30 +0000