#include "bytestream.h"
#include "adpcm.h"
#include "adpcm_data.h"
+#include "internal.h"
/**
* @file
/* end of tables */
typedef struct ADPCMDecodeContext {
- AVFrame frame;
ADPCMChannelStatus status[6];
int vqa_version; /**< VQA version. Used for ADPCM_IMA_WS */
} ADPCMDecodeContext;
case AV_CODEC_ID_ADPCM_IMA_QT:
case AV_CODEC_ID_ADPCM_IMA_WAV:
case AV_CODEC_ID_ADPCM_4XM:
+ case AV_CODEC_ID_ADPCM_XA:
+ case AV_CODEC_ID_ADPCM_EA_R1:
+ case AV_CODEC_ID_ADPCM_EA_R2:
+ case AV_CODEC_ID_ADPCM_EA_R3:
+ case AV_CODEC_ID_ADPCM_EA_XAS:
+ case AV_CODEC_ID_ADPCM_THP:
avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
break;
+ case AV_CODEC_ID_ADPCM_IMA_WS:
+ avctx->sample_fmt = c->vqa_version == 3 ? AV_SAMPLE_FMT_S16P :
+ AV_SAMPLE_FMT_S16;
+ break;
default:
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
}
- avcodec_get_frame_defaults(&c->frame);
- avctx->coded_frame = &c->frame;
-
return 0;
}
return c->predictor;
}
-static int xa_decode(AVCodecContext *avctx,
- short *out, const unsigned char *in,
- ADPCMChannelStatus *left, ADPCMChannelStatus *right, int inc)
+static int xa_decode(AVCodecContext *avctx, int16_t *out0, int16_t *out1,
+ const uint8_t *in, ADPCMChannelStatus *left,
+ ADPCMChannelStatus *right, int channels, int sample_offset)
{
int i, j;
int shift,filter,f0,f1;
int s_1,s_2;
int d,s,t;
- for(i=0;i<4;i++) {
+ out0 += sample_offset;
+ if (channels == 1)
+ out1 = out0 + 28;
+ else
+ out1 += sample_offset;
+ for(i=0;i<4;i++) {
shift = 12 - (in[4+i*2] & 15);
filter = in[4+i*2] >> 4;
if (filter > 4) {
s = ( t<<shift ) + ((s_1*f0 + s_2*f1+32)>>6);
s_2 = s_1;
s_1 = av_clip_int16(s);
- *out = s_1;
- out += inc;
+ out0[j] = s_1;
}
- if (inc==2) { /* stereo */
+ if (channels == 2) {
left->sample1 = s_1;
left->sample2 = s_2;
s_1 = right->sample1;
s_2 = right->sample2;
- out = out + 1 - 28*2;
}
shift = 12 - (in[5+i*2] & 15);
s = ( t<<shift ) + ((s_1*f0 + s_2*f1+32)>>6);
s_2 = s_1;
s_1 = av_clip_int16(s);
- *out = s_1;
- out += inc;
+ out1[j] = s_1;
}
- if (inc==2) { /* stereo */
+ if (channels == 2) {
right->sample1 = s_1;
right->sample2 = s_2;
- out -= 1;
} else {
left->sample1 = s_1;
left->sample2 = s_2;
}
+
+ out0 += 28 * (3 - channels);
+ out1 += 28 * (3 - channels);
}
return 0;
static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
+ AVFrame *frame = data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
ADPCMDecodeContext *c = avctx->priv_data;
}
/* get output buffer */
- c->frame.nb_samples = nb_samples;
- if ((ret = avctx->get_buffer(avctx, &c->frame)) < 0) {
+ frame->nb_samples = nb_samples;
+ if ((ret = ff_get_buffer(avctx, frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
- samples = (short *)c->frame.data[0];
- samples_p = (int16_t **)c->frame.extended_data;
+ samples = (short *)frame->data[0];
+ samples_p = (int16_t **)frame->extended_data;
/* use coded_samples when applicable */
/* it is always <= nb_samples, so the output buffer will be large enough */
if (coded_samples) {
if (coded_samples != nb_samples)
av_log(avctx, AV_LOG_WARNING, "mismatch in coded sample count\n");
- c->frame.nb_samples = nb_samples = coded_samples;
+ frame->nb_samples = nb_samples = coded_samples;
}
st = avctx->channels == 2 ? 1 : 0;
}
for (i = 0; i < avctx->channels; i++) {
- samples = (int16_t *)c->frame.data[i];
+ samples = (int16_t *)frame->data[i];
cs = &c->status[i];
for (n = nb_samples >> 1; n > 0; n--) {
int v = bytestream2_get_byteu(&gb);
case AV_CODEC_ID_ADPCM_IMA_WS:
if (c->vqa_version == 3) {
for (channel = 0; channel < avctx->channels; channel++) {
- int16_t *smp = samples + channel;
+ int16_t *smp = samples_p[channel];
for (n = nb_samples / 2; n > 0; n--) {
int v = bytestream2_get_byteu(&gb);
- *smp = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
- smp += avctx->channels;
- *smp = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
- smp += avctx->channels;
+ *smp++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
+ *smp++ = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
}
}
} else {
bytestream2_seek(&gb, 0, SEEK_END);
break;
case AV_CODEC_ID_ADPCM_XA:
+ {
+ int16_t *out0 = samples_p[0];
+ int16_t *out1 = samples_p[1];
+ int samples_per_block = 28 * (3 - avctx->channels) * 4;
+ int sample_offset = 0;
while (bytestream2_get_bytes_left(&gb) >= 128) {
- if ((ret = xa_decode(avctx, samples, buf + bytestream2_tell(&gb), &c->status[0],
- &c->status[1], avctx->channels)) < 0)
+ if ((ret = xa_decode(avctx, out0, out1, buf + bytestream2_tell(&gb),
+ &c->status[0], &c->status[1],
+ avctx->channels, sample_offset)) < 0)
return ret;
bytestream2_skipu(&gb, 128);
- samples += 28 * 8;
+ sample_offset += samples_per_block;
}
break;
+ }
case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
for (i=0; i<=st; i++) {
c->status[i].step_index = bytestream2_get_le32u(&gb);
for (channel=0; channel<avctx->channels; channel++) {
bytestream2_seek(&gb, offsets[channel], SEEK_SET);
- samplesC = samples + channel;
+ samplesC = samples_p[channel];
if (avctx->codec->id == AV_CODEC_ID_ADPCM_EA_R1) {
current_sample = sign_extend(bytestream2_get_le16(&gb), 16);
current_sample = sign_extend(bytestream2_get_be16(&gb), 16);
previous_sample = sign_extend(bytestream2_get_be16(&gb), 16);
- for (count2=0; count2<28; count2++) {
- *samplesC = sign_extend(bytestream2_get_be16(&gb), 16);
- samplesC += avctx->channels;
- }
+ for (count2=0; count2<28; count2++)
+ *samplesC++ = sign_extend(bytestream2_get_be16(&gb), 16);
} else {
coeff1 = ea_adpcm_table[ byte >> 4 ];
coeff2 = ea_adpcm_table[(byte >> 4) + 4];
previous_sample = current_sample;
current_sample = next_sample;
- *samplesC = current_sample;
- samplesC += avctx->channels;
+ *samplesC++ = current_sample;
}
}
}
}
}
- c->frame.nb_samples = count * 28;
+ frame->nb_samples = count * 28;
bytestream2_seek(&gb, 0, SEEK_END);
break;
}
case AV_CODEC_ID_ADPCM_EA_XAS:
for (channel=0; channel<avctx->channels; channel++) {
int coeff[2][4], shift[4];
- short *s2, *s = &samples[channel];
- for (n=0; n<4; n++, s+=32*avctx->channels) {
+ int16_t *s = samples_p[channel];
+ for (n = 0; n < 4; n++, s += 32) {
int val = sign_extend(bytestream2_get_le16u(&gb), 16);
for (i=0; i<2; i++)
coeff[i][n] = ea_adpcm_table[(val&0x0F)+4*i];
val = sign_extend(bytestream2_get_le16u(&gb), 16);
shift[n] = 20 - (val & 0x0F);
- s[avctx->channels] = val & ~0x0F;
+ s[1] = val & ~0x0F;
}
for (m=2; m<32; m+=2) {
- s = &samples[m*avctx->channels + channel];
- for (n=0; n<4; n++, s+=32*avctx->channels) {
+ s = &samples_p[channel][m];
+ for (n = 0; n < 4; n++, s += 32) {
+ int level, pred;
int byte = bytestream2_get_byteu(&gb);
- for (s2=s, i=0; i<8; i+=4, s2+=avctx->channels) {
- int level = sign_extend(byte >> (4 - i), 4) << shift[n];
- int pred = s2[-1*avctx->channels] * coeff[0][n]
- + s2[-2*avctx->channels] * coeff[1][n];
- s2[0] = av_clip_int16((level + pred + 0x80) >> 8);
- }
+
+ level = sign_extend(byte >> 4, 4) << shift[n];
+ pred = s[-1] * coeff[0][n] + s[-2] * coeff[1][n];
+ s[0] = av_clip_int16((level + pred + 0x80) >> 8);
+
+ level = sign_extend(byte, 4) << shift[n];
+ pred = s[0] * coeff[0][n] + s[-1] * coeff[1][n];
+ s[1] = av_clip_int16((level + pred + 0x80) >> 8);
}
}
}
prev[i][n] = sign_extend(bytestream2_get_be16u(&gb), 16);
for (ch = 0; ch <= st; ch++) {
- samples = (short *)c->frame.data[0] + ch;
+ samples = samples_p[ch];
/* Read in every sample for this channel. */
for (i = 0; i < nb_samples / 14; i++) {
*samples = av_clip_int16(sampledat);
prev[ch][1] = prev[ch][0];
prev[ch][0] = *samples++;
-
- /* In case of stereo, skip one sample, this sample
- is for the other channel. */
- samples += st;
}
}
}
return -1;
}
- *got_frame_ptr = 1;
- *(AVFrame *)data = c->frame;
+ *got_frame_ptr = 1;
return bytestream2_tell(&gb);
}
AV_SAMPLE_FMT_NONE };
static const enum AVSampleFormat sample_fmts_s16p[] = { AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_NONE };
+static const enum AVSampleFormat sample_fmts_both[] = { AV_SAMPLE_FMT_S16,
+ AV_SAMPLE_FMT_S16P,
+ AV_SAMPLE_FMT_NONE };
#define ADPCM_DECODER(id_, sample_fmts_, name_, long_name_) \
AVCodec ff_ ## name_ ## _decoder = { \
ADPCM_DECODER(AV_CODEC_ID_ADPCM_CT, sample_fmts_s16, adpcm_ct, "ADPCM Creative Technology");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA, sample_fmts_s16, adpcm_ea, "ADPCM Electronic Arts");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_MAXIS_XA, sample_fmts_s16, adpcm_ea_maxis_xa, "ADPCM Electronic Arts Maxis CDROM XA");
-ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R1, sample_fmts_s16, adpcm_ea_r1, "ADPCM Electronic Arts R1");
-ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R2, sample_fmts_s16, adpcm_ea_r2, "ADPCM Electronic Arts R2");
-ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R3, sample_fmts_s16, adpcm_ea_r3, "ADPCM Electronic Arts R3");
-ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_XAS, sample_fmts_s16, adpcm_ea_xas, "ADPCM Electronic Arts XAS");
+ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R1, sample_fmts_s16p, adpcm_ea_r1, "ADPCM Electronic Arts R1");
+ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R2, sample_fmts_s16p, adpcm_ea_r2, "ADPCM Electronic Arts R2");
+ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R3, sample_fmts_s16p, adpcm_ea_r3, "ADPCM Electronic Arts R3");
+ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_XAS, sample_fmts_s16p, adpcm_ea_xas, "ADPCM Electronic Arts XAS");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_AMV, sample_fmts_s16, adpcm_ima_amv, "ADPCM IMA AMV");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_APC, sample_fmts_s16, adpcm_ima_apc, "ADPCM IMA CRYO APC");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DK3, sample_fmts_s16, adpcm_ima_dk3, "ADPCM IMA Duck DK3");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_QT, sample_fmts_s16p, adpcm_ima_qt, "ADPCM IMA QuickTime");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_SMJPEG, sample_fmts_s16, adpcm_ima_smjpeg, "ADPCM IMA Loki SDL MJPEG");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WAV, sample_fmts_s16p, adpcm_ima_wav, "ADPCM IMA WAV");
-ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WS, sample_fmts_s16, adpcm_ima_ws, "ADPCM IMA Westwood");
+ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WS, sample_fmts_both, adpcm_ima_ws, "ADPCM IMA Westwood");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_MS, sample_fmts_s16, adpcm_ms, "ADPCM Microsoft");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_2, sample_fmts_s16, adpcm_sbpro_2, "ADPCM Sound Blaster Pro 2-bit");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_3, sample_fmts_s16, adpcm_sbpro_3, "ADPCM Sound Blaster Pro 2.6-bit");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_4, sample_fmts_s16, adpcm_sbpro_4, "ADPCM Sound Blaster Pro 4-bit");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_SWF, sample_fmts_s16, adpcm_swf, "ADPCM Shockwave Flash");
-ADPCM_DECODER(AV_CODEC_ID_ADPCM_THP, sample_fmts_s16, adpcm_thp, "ADPCM Nintendo Gamecube THP");
-ADPCM_DECODER(AV_CODEC_ID_ADPCM_XA, sample_fmts_s16, adpcm_xa, "ADPCM CDROM XA");
+ADPCM_DECODER(AV_CODEC_ID_ADPCM_THP, sample_fmts_s16p, adpcm_thp, "ADPCM Nintendo Gamecube THP");
+ADPCM_DECODER(AV_CODEC_ID_ADPCM_XA, sample_fmts_s16p, adpcm_xa, "ADPCM CDROM XA");
ADPCM_DECODER(AV_CODEC_ID_ADPCM_YAMAHA, sample_fmts_s16, adpcm_yamaha, "ADPCM Yamaha");
projects / ffmpeg / blobdiff