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Original Commit: r114 | ods15 | 2006-10-01 21:38:37 +0200 (Sun, 01 Oct 2006) | 2 lines

Browse Source 
blocksize -> log2_blocksize

Originally committed as revision 6518 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Oded Shimon 18 years ago
parent 631941441d
commit 007574482a
1 changed files with 17 additions and 17 deletions
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  1. 34
      libavcodec/vorbis_enc.c

34
libavcodec/vorbis_enc.c
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@ -91,7 +91,7 @@ typedef struct {
typedef struct {
int channels;
int sample_rate;
int blocksize[2]; // in (1<<n) format
int log2_blocksize[2];
MDCTContext mdct[2];
const float * win[2];
int have_saved;
@ -722,7 +722,7 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
venc->channels = avccontext->channels;
venc->sample_rate = avccontext->sample_rate;
venc->blocksize[0] = venc->blocksize[1] = 11;
venc->log2_blocksize[0] = venc->log2_blocksize[1] = 11;
venc->ncodebooks = sizeof(cvectors)/sizeof(cvectors[0]);
venc->codebooks = av_malloc(sizeof(codebook_t) * venc->ncodebooks);
@ -781,7 +781,7 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
for (j = 0; j < books; j++) c->books[j] = floor_classes[i].nbooks[j];
}
fc->multiplier = 2;
fc->rangebits = venc->blocksize[0] - 1;
fc->rangebits = venc->log2_blocksize[0] - 1;
fc->values = 2;
for (i = 0; i < fc->partitions; i++)
@ -859,16 +859,16 @@ static void create_vorbis_context(venc_context_t * venc, AVCodecContext * avccon
venc->modes[0].mapping = 0;
venc->have_saved = 0;
venc->saved = av_malloc(sizeof(float) * venc->channels * (1 << venc->blocksize[1]) / 2);
venc->samples = av_malloc(sizeof(float) * venc->channels * (1 << venc->blocksize[1]));
venc->floor = av_malloc(sizeof(float) * venc->channels * (1 << venc->blocksize[1]) / 2);
venc->coeffs = av_malloc(sizeof(float) * venc->channels * (1 << venc->blocksize[1]) / 2);
venc->saved = av_malloc(sizeof(float) * venc->channels * (1 << venc->log2_blocksize[1]) / 2);
venc->samples = av_malloc(sizeof(float) * venc->channels * (1 << venc->log2_blocksize[1]));
venc->floor = av_malloc(sizeof(float) * venc->channels * (1 << venc->log2_blocksize[1]) / 2);
venc->coeffs = av_malloc(sizeof(float) * venc->channels * (1 << venc->log2_blocksize[1]) / 2);
venc->win[0] = ff_vorbis_vwin[venc->blocksize[0] - 6];
venc->win[1] = ff_vorbis_vwin[venc->blocksize[1] - 6];
venc->win[0] = ff_vorbis_vwin[venc->log2_blocksize[0] - 6];
venc->win[1] = ff_vorbis_vwin[venc->log2_blocksize[1] - 6];
ff_mdct_init(&venc->mdct[0], venc->blocksize[0], 0);
ff_mdct_init(&venc->mdct[1], venc->blocksize[1], 0);
ff_mdct_init(&venc->mdct[0], venc->log2_blocksize[0], 0);
ff_mdct_init(&venc->mdct[1], venc->log2_blocksize[1], 0);
}
static void put_float(PutBitContext * pb, float f) {
@ -1007,8 +1007,8 @@ static int put_main_header(venc_context_t * venc, uint8_t ** out) {
put_bits(&pb, 32, 0); // bitrate
put_bits(&pb, 32, 0); // bitrate
put_bits(&pb, 32, 0); // bitrate
put_bits(&pb, 4, venc->blocksize[0]);
put_bits(&pb, 4, venc->blocksize[1]);
put_bits(&pb, 4, venc->log2_blocksize[0]);
put_bits(&pb, 4, venc->log2_blocksize[1]);
put_bits(&pb, 1, 1); // framing
flush_put_bits(&pb);
@ -1311,8 +1311,8 @@ static void residue_encode(venc_context_t * venc, residue_t * rc, PutBitContext
static int apply_window_and_mdct(venc_context_t * venc, signed short * audio, int samples) {
int i, j, channel;
const float * win = venc->win[0];
int window_len = 1 << (venc->blocksize[0] - 1);
float n = (float)(1 << venc->blocksize[0]) / 4.;
int window_len = 1 << (venc->log2_blocksize[0] - 1);
float n = (float)(1 << venc->log2_blocksize[0]) / 4.;
// FIXME use dsp
if (!venc->have_saved && !samples) return 0;
@ -1375,7 +1375,7 @@ static int vorbis_encode_init(AVCodecContext * avccontext)
avccontext->extradata_size = put_main_header(venc, (uint8_t**)&avccontext->extradata);
avccontext->frame_size = 1 << (venc->blocksize[0] - 1);
avccontext->frame_size = 1 << (venc->log2_blocksize[0] - 1);
avccontext->coded_frame = avcodec_alloc_frame();
avccontext->coded_frame->key_frame = 1;
@ -1394,7 +1394,7 @@ static int vorbis_encode_frame(AVCodecContext * avccontext, unsigned char * pack
int i;
if (!apply_window_and_mdct(venc, audio, samples)) return 0;
samples = 1 << (venc->blocksize[0] - 1);
samples = 1 << (venc->log2_blocksize[0] - 1);
init_put_bits(&pb, packets, buf_size);

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