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Original Commit: r36 | ods15 | 2006-09-23 08:43:09 +0300 (Sat, 23 Sep 2006) | 2 lines

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starting point for packet encode, writing floor

Originally committed as revision 6444 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Oded Shimon
2006-10-02 05:56:18 +00:00
parent e3bbb5910f
commit b9b040236e
1 changed files with 35 additions and 4 deletions
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39
libavcodec/vorbis_enc.c
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@ -589,14 +589,45 @@ static int vorbis_encode_init(AVCodecContext * avccontext)
static int vorbis_encode_frame(AVCodecContext * avccontext, unsigned char * packets, int buf_size, void *data) static int vorbis_encode_frame(AVCodecContext * avccontext, unsigned char * packets, int buf_size, void *data)
{ {
#if 0
venc_context_t * venc = avccontext->priv_data; venc_context_t * venc = avccontext->priv_data;
signed short * audio = data; signed short * audio = data;
int samples = data ? avccontext->frame_size : 0; int samples = data ? avccontext->frame_size : 0;
vorbis_mode_t * mode;
mapping_t * mapping;
PutBitContext pb;
int i;
init_put_bits(&pb, packets, buf_size);
put_bits(&pb, 1, 0); // magic bit
put_bits(&pb, ilog(venc->nmodes - 1), 0); // 0 bits, the mode
mode = &venc->modes[0];
mapping = &venc->mappings[mode->mapping];
if (mode->blockflag) {
put_bits(&pb, 1, 0);
put_bits(&pb, 1, 0);
}
for (i = 0; i < venc->channels; i++) {
floor_t * fc = &venc->floors[mapping->floor[mapping->mux[i]]];
int range = 255 / fc->multiplier + 1;
int j;
put_bits(&pb, 1, 1); // non zero
put_bits(&pb, ilog(range - 1), 113); // magic value - 3.7180282E-05
put_bits(&pb, ilog(range - 1), 113); // both sides of X
for (j = 0; j < fc->partitions; j++) {
floor_class_t * c = &fc->classes[fc->partition_to_class[j]];
codebook_t * book = &venc->codebooks[c->books[0]];
int entry = 0;
int k;
for (k = 0; k < c->dim; k++) {
put_bits(&pb, book->entries[entry].len, book->entries[entry].codeword);
}
}
}
avccontext->coded_frame->pts = av_rescale_q(op2->granulepos, (AVRational){1, avccontext->sample_rate}, avccontext->time_base);
memcpy(packets, compressed_frame, l);
#endif
return data ? 50 : 0; return data ? 50 : 0;
} }