* Copyright (c) 2003 Sascha Sommer
* Copyright (c) 2005 Benjamin Larsson
*
- * 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
*/
#include "dsputil.h"
#include "bytestream.h"
#include "fft.h"
+#include "libavutil/audioconvert.h"
+#include "sinewin.h"
#include "cookdata.h"
#define SUBBAND_SIZE 20
#define MAX_SUBPACKETS 5
-//#define COOKDEBUG
typedef struct {
int *now;
/* data buffers */
uint8_t* decoded_bytes_buffer;
- DECLARE_ALIGNED(16, float,mono_mdct_output)[2048];
+ DECLARE_ALIGNED(32, float, mono_mdct_output)[2048];
float decode_buffer_1[1024];
float decode_buffer_2[1024];
float decode_buffer_0[1060]; /* static allocation for joint decode */
static float pow2tab[127];
static float rootpow2tab[127];
-/* debug functions */
-
-#ifdef COOKDEBUG
-static void dump_float_table(float* table, int size, int delimiter) {
- int i=0;
- av_log(NULL,AV_LOG_ERROR,"\n[%d]: ",i);
- for (i=0 ; i<size ; i++) {
- av_log(NULL, AV_LOG_ERROR, "%5.1f, ", table[i]);
- if ((i+1)%delimiter == 0) av_log(NULL,AV_LOG_ERROR,"\n[%d]: ",i+1);
- }
-}
-
-static void dump_int_table(int* table, int size, int delimiter) {
- int i=0;
- av_log(NULL,AV_LOG_ERROR,"\n[%d]: ",i);
- for (i=0 ; i<size ; i++) {
- av_log(NULL, AV_LOG_ERROR, "%d, ", table[i]);
- if ((i+1)%delimiter == 0) av_log(NULL,AV_LOG_ERROR,"\n[%d]: ",i+1);
- }
-}
-
-static void dump_short_table(short* table, int size, int delimiter) {
- int i=0;
- av_log(NULL,AV_LOG_ERROR,"\n[%d]: ",i);
- for (i=0 ; i<size ; i++) {
- av_log(NULL, AV_LOG_ERROR, "%d, ", table[i]);
- if ((i+1)%delimiter == 0) av_log(NULL,AV_LOG_ERROR,"\n[%d]: ",i+1);
- }
-}
-
-#endif
-
/*************** init functions ***************/
/* table generator */
/*************** init functions end ***********/
+#define DECODE_BYTES_PAD1(bytes) (3 - ((bytes)+3) % 4)
+#define DECODE_BYTES_PAD2(bytes) ((bytes) % 4 + DECODE_BYTES_PAD1(2 * (bytes)))
+
/**
* Cook indata decoding, every 32 bits are XORed with 0x37c511f2.
* Why? No idea, some checksum/error detection method maybe.
* @param out pointer to byte array of outdata
* @param bytes number of bytes
*/
-#define DECODE_BYTES_PAD1(bytes) (3 - ((bytes)+3) % 4)
-#define DECODE_BYTES_PAD2(bytes) ((bytes) % 4 + DECODE_BYTES_PAD1(2 * (bytes)))
static inline int decode_bytes(const uint8_t* inbuffer, uint8_t* out, int bytes){
int i, off;
/* FIXME: 64 bit platforms would be able to do 64 bits at a time.
* I'm too lazy though, should be something like
* for(i=0 ; i<bitamount/64 ; i++)
- * (int64_t)out[i] = 0x37c511f237c511f2^be2me_64(int64_t)in[i]);
+ * (int64_t)out[i] = 0x37c511f237c511f2^av_be2ne64(int64_t)in[i]);
* Buffer alignment needs to be checked. */
off = (intptr_t)inbuffer & 3;
buf = (const uint32_t*) (inbuffer - off);
- c = be2me_32((0x37c511f2 >> (off*8)) | (0x37c511f2 << (32-(off*8))));
+ c = av_be2ne32((0x37c511f2 >> (off*8)) | (0x37c511f2 << (32-(off*8))));
bytes += 3 + off;
for (i = 0; i < bytes/4; i++)
obuf[i] = c ^ buf[i];
/**
* Fill the gain array for the timedomain quantization.
*
- * @param q pointer to the COOKContext
- * @param gaininfo[9] array of gain indexes
+ * @param gb pointer to the GetBitContext
+ * @param gaininfo[9] array of gain indexes
*/
static void decode_gain_info(GetBitContext *gb, int *gaininfo)
* @param previous_buffer pointer to the previous buffer to be used for overlapping
*/
-static void imlt_window_float (COOKContext *q, float *buffer1,
+static void imlt_window_float (COOKContext *q, float *inbuffer,
cook_gains *gains_ptr, float *previous_buffer)
{
const float fc = pow2tab[gains_ptr->previous[0] + 63];
/* Apply window and overlap */
for(i = 0; i < q->samples_per_channel; i++){
- buffer1[i] = buffer1[i] * fc * q->mlt_window[i] -
+ inbuffer[i] = inbuffer[i] * fc * q->mlt_window[i] -
previous_buffer[i] * q->mlt_window[q->samples_per_channel - 1 - i];
}
}
int i;
/* Inverse modified discrete cosine transform */
- ff_imdct_calc(&q->mdct_ctx, q->mono_mdct_output, inbuffer);
+ q->mdct_ctx.imdct_calc(&q->mdct_ctx, q->mono_mdct_output, inbuffer);
q->imlt_window (q, buffer1, gains_ptr, previous_buffer);
*
* @param q pointer to the COOKContext
* @param inbuffer pointer to raw stream data
- * @param gain_ptr array of current/prev gain pointers
+ * @param gains_ptr array of current/prev gain pointers
*/
static inline void
*
* @param q pointer to the COOKContext
* @param decode_buffer pointer to the mlt coefficients
- * @param gain_ptr array of current/prev gain pointers
+ * @param gains_ptr array of current/prev gain pointers
* @param previous_buffer pointer to the previous buffer to be used for overlapping
* @param out pointer to the output buffer
* @param chan 0: left or single channel, 1: right channel
static inline void
mlt_compensate_output(COOKContext *q, float *decode_buffer,
- cook_gains *gains, float *previous_buffer,
+ cook_gains *gains_ptr, float *previous_buffer,
int16_t *out, int chan)
{
- imlt_gain(q, decode_buffer, gains, previous_buffer);
+ imlt_gain(q, decode_buffer, gains_ptr, previous_buffer);
q->saturate_output (q, chan, out);
}
*
* @param q pointer to the COOKContext
* @param inbuffer pointer to the inbuffer
- * @param sub_packet_size subpacket size
* @param outbuffer pointer to the outbuffer
*/
-
-
static void decode_subpacket(COOKContext *q, COOKSubpacket* p, const uint8_t *inbuffer, int16_t *outbuffer) {
int sub_packet_size = p->size;
/* packet dump */
return avctx->block_align;
}
-#ifdef COOKDEBUG
+#ifdef DEBUG
static void dump_cook_context(COOKContext *q)
{
//int i=0;
PRINT("samples_per_channel",q->subpacket[0].samples_per_channel);
PRINT("samples_per_frame",q->subpacket[0].samples_per_frame);
PRINT("subbands",q->subpacket[0].subbands);
- PRINT("random_state",q->random_state);
PRINT("js_subband_start",q->subpacket[0].js_subband_start);
PRINT("log2_numvector_size",q->subpacket[0].log2_numvector_size);
PRINT("numvector_size",q->subpacket[0].numvector_size);
switch (q->subpacket[s].cookversion) {
case MONO:
if (q->nb_channels != 1) {
- av_log(avctx,AV_LOG_ERROR,"Container channels != 1, report sample!\n");
+ av_log_ask_for_sample(avctx, "Container channels != 1.\n");
return -1;
}
av_log(avctx,AV_LOG_DEBUG,"MONO\n");
break;
case JOINT_STEREO:
if (q->nb_channels != 2) {
- av_log(avctx,AV_LOG_ERROR,"Container channels != 2, report sample!\n");
+ av_log_ask_for_sample(avctx, "Container channels != 2.\n");
return -1;
}
av_log(avctx,AV_LOG_DEBUG,"JOINT_STEREO\n");
break;
default:
- av_log(avctx,AV_LOG_ERROR,"Unknown Cook version, report sample!\n");
+ av_log_ask_for_sample(avctx, "Unknown Cook version.\n");
return -1;
break;
}
/* Try to catch some obviously faulty streams, othervise it might be exploitable */
if (q->subpacket[s].total_subbands > 53) {
- av_log(avctx,AV_LOG_ERROR,"total_subbands > 53, report sample!\n");
+ av_log_ask_for_sample(avctx, "total_subbands > 53\n");
return -1;
}
}
if (q->subpacket[s].subbands > 50) {
- av_log(avctx,AV_LOG_ERROR,"subbands > 50, report sample!\n");
+ av_log_ask_for_sample(avctx, "subbands > 50\n");
return -1;
}
q->subpacket[s].gains1.now = q->subpacket[s].gain_1;
q->num_subpackets++;
s++;
if (s > MAX_SUBPACKETS) {
- av_log(avctx,AV_LOG_ERROR,"Too many subpackets > 5, report file!\n");
+ av_log_ask_for_sample(avctx, "Too many subpackets > 5\n");
return -1;
}
}
/* Try to catch some obviously faulty streams, othervise it might be exploitable */
if ((q->samples_per_channel == 256) || (q->samples_per_channel == 512) || (q->samples_per_channel == 1024)) {
} else {
- av_log(avctx,AV_LOG_ERROR,"unknown amount of samples_per_channel = %d, report sample!\n",q->samples_per_channel);
+ av_log_ask_for_sample(avctx,
+ "unknown amount of samples_per_channel = %d\n",
+ q->samples_per_channel);
return -1;
}
- avctx->sample_fmt = SAMPLE_FMT_S16;
+ avctx->sample_fmt = AV_SAMPLE_FMT_S16;
if (channel_mask)
avctx->channel_layout = channel_mask;
else
- avctx->channel_layout = (avctx->channels==2) ? CH_LAYOUT_STEREO : CH_LAYOUT_MONO;
+ avctx->channel_layout = (avctx->channels==2) ? AV_CH_LAYOUT_STEREO : AV_CH_LAYOUT_MONO;
-#ifdef COOKDEBUG
+#ifdef DEBUG
dump_cook_context(q);
#endif
return 0;
}
-AVCodec cook_decoder =
+AVCodec ff_cook_decoder =
{
.name = "cook",
.type = AVMEDIA_TYPE_AUDIO,
projects / ffmpeg / blobdiff