#include <inttypes.h>
#include <math.h>
-#define ALT_BITSTREAM_READER_LE
+#define BITSTREAM_READER_LE
+#include "libavutil/float_dsp.h"
#include "avcodec.h"
#include "get_bits.h"
-#include "dsputil.h"
#include "fft.h"
#include "fmtconvert.h"
+#include "internal.h"
#include "vorbis.h"
+#include "vorbisdsp.h"
#include "xiph.h"
#define V_NB_BITS 8
#define V_MAX_VLCS (1 << 16)
#define V_MAX_PARTITIONS (1 << 20)
-#undef NDEBUG
-#include <assert.h>
-
typedef struct {
uint8_t dimensions;
uint8_t lookup_type;
} vorbis_mode;
typedef struct vorbis_context_s {
- AVCodecContext *avccontext;
+ AVCodecContext *avctx;
GetBitContext gb;
- DSPContext dsp;
+ VorbisDSPContext dsp;
+ AVFloatDSPContext fdsp;
FmtConvertContext fmt_conv;
FFTContext mdct[2];
uint8_t mode_number; // mode number for the current packet
uint8_t previous_window;
float *channel_residues;
- float *channel_floors;
float *saved;
- float scale_bias; // for float->int conversion
} vorbis_context;
/* Helper functions */
static const char idx_err_str[] = "Index value %d out of range (0 - %d) for %s at %s:%i\n";
#define VALIDATE_INDEX(idx, limit) \
if (idx >= limit) {\
- av_log(vc->avccontext, AV_LOG_ERROR,\
+ av_log(vc->avctx, AV_LOG_ERROR,\
idx_err_str,\
(int)(idx), (int)(limit - 1), #idx, __FILE__, __LINE__);\
- return -1;\
+ return AVERROR_INVALIDDATA;\
}
#define GET_VALIDATED_INDEX(idx, bits, limit) \
{\
int i;
av_freep(&vc->channel_residues);
- av_freep(&vc->channel_floors);
av_freep(&vc->saved);
for (i = 0; i < vc->residue_count; i++)
for (i = 0; i < vc->codebook_count; ++i) {
av_free(vc->codebooks[i].codevectors);
- free_vlc(&vc->codebooks[i].vlc);
+ ff_free_vlc(&vc->codebooks[i].vlc);
}
av_freep(&vc->codebooks);
static int vorbis_parse_setup_hdr_codebooks(vorbis_context *vc)
{
unsigned cb;
- uint8_t *tmp_vlc_bits;
- uint32_t *tmp_vlc_codes;
+ uint8_t *tmp_vlc_bits = NULL;
+ uint32_t *tmp_vlc_codes = NULL;
GetBitContext *gb = &vc->gb;
- uint16_t *codebook_multiplicands;
+ uint16_t *codebook_multiplicands = NULL;
+ int ret = 0;
vc->codebook_count = get_bits(gb, 8) + 1;
tmp_vlc_bits = av_mallocz(V_MAX_VLCS * sizeof(*tmp_vlc_bits));
tmp_vlc_codes = av_mallocz(V_MAX_VLCS * sizeof(*tmp_vlc_codes));
codebook_multiplicands = av_malloc(V_MAX_VLCS * sizeof(*codebook_multiplicands));
+ if (!vc->codebooks ||
+ !tmp_vlc_bits || !tmp_vlc_codes || !codebook_multiplicands) {
+ ret = AVERROR(ENOMEM);
+ goto error;
+ }
for (cb = 0; cb < vc->codebook_count; ++cb) {
vorbis_codebook *codebook_setup = &vc->codebooks[cb];
av_dlog(NULL, " %u. Codebook\n", cb);
if (get_bits(gb, 24) != 0x564342) {
- av_log(vc->avccontext, AV_LOG_ERROR,
+ av_log(vc->avctx, AV_LOG_ERROR,
" %u. Codebook setup data corrupt.\n", cb);
+ ret = AVERROR_INVALIDDATA;
goto error;
}
codebook_setup->dimensions=get_bits(gb, 16);
if (codebook_setup->dimensions > 16 || codebook_setup->dimensions == 0) {
- av_log(vc->avccontext, AV_LOG_ERROR,
+ av_log(vc->avctx, AV_LOG_ERROR,
" %u. Codebook's dimension is invalid (%d).\n",
cb, codebook_setup->dimensions);
+ ret = AVERROR_INVALIDDATA;
goto error;
}
entries = get_bits(gb, 24);
if (entries > V_MAX_VLCS) {
- av_log(vc->avccontext, AV_LOG_ERROR,
+ av_log(vc->avctx, AV_LOG_ERROR,
" %u. Codebook has too many entries (%u).\n",
cb, entries);
+ ret = AVERROR_INVALIDDATA;
goto error;
}
current_entry+=number;
}
if (current_entry>used_entries) {
- av_log(vc->avccontext, AV_LOG_ERROR, " More codelengths than codes in codebook. \n");
+ av_log(vc->avctx, AV_LOG_ERROR, " More codelengths than codes in codebook. \n");
+ ret = AVERROR_INVALIDDATA;
goto error;
}
}
float last = 0.0;
unsigned lookup_offset = i;
- av_dlog(vc->avccontext, "Lookup offset %u ,", i);
+ av_dlog(vc->avctx, "Lookup offset %u ,", i);
for (k = 0; k < dim; ++k) {
unsigned multiplicand_offset = lookup_offset % codebook_lookup_values;
}
tmp_vlc_bits[j] = tmp_vlc_bits[i];
- av_dlog(vc->avccontext, "real lookup offset %u, vector: ", j);
+ av_dlog(vc->avctx, "real lookup offset %u, vector: ", j);
for (k = 0; k < dim; ++k)
- av_dlog(vc->avccontext, " %f ",
+ av_dlog(vc->avctx, " %f ",
codebook_setup->codevectors[j * dim + k]);
- av_dlog(vc->avccontext, "\n");
+ av_dlog(vc->avctx, "\n");
++j;
}
}
if (j != used_entries) {
- av_log(vc->avccontext, AV_LOG_ERROR, "Bug in codevector vector building code. \n");
+ av_log(vc->avctx, AV_LOG_ERROR, "Bug in codevector vector building code. \n");
+ ret = AVERROR_INVALIDDATA;
goto error;
}
entries = used_entries;
} else if (codebook_setup->lookup_type >= 2) {
- av_log(vc->avccontext, AV_LOG_ERROR, "Codebook lookup type not supported. \n");
+ av_log(vc->avctx, AV_LOG_ERROR, "Codebook lookup type not supported. \n");
+ ret = AVERROR_INVALIDDATA;
goto error;
}
// Initialize VLC table
if (ff_vorbis_len2vlc(tmp_vlc_bits, tmp_vlc_codes, entries)) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Invalid code lengths while generating vlcs. \n");
+ av_log(vc->avctx, AV_LOG_ERROR, " Invalid code lengths while generating vlcs. \n");
+ ret = AVERROR_INVALIDDATA;
goto error;
}
codebook_setup->maxdepth = 0;
codebook_setup->maxdepth = (codebook_setup->maxdepth+codebook_setup->nb_bits - 1) / codebook_setup->nb_bits;
- if (init_vlc(&codebook_setup->vlc, codebook_setup->nb_bits, entries, tmp_vlc_bits, sizeof(*tmp_vlc_bits), sizeof(*tmp_vlc_bits), tmp_vlc_codes, sizeof(*tmp_vlc_codes), sizeof(*tmp_vlc_codes), INIT_VLC_LE)) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Error generating vlc tables. \n");
+ if ((ret = init_vlc(&codebook_setup->vlc, codebook_setup->nb_bits,
+ entries, tmp_vlc_bits, sizeof(*tmp_vlc_bits),
+ sizeof(*tmp_vlc_bits), tmp_vlc_codes,
+ sizeof(*tmp_vlc_codes), sizeof(*tmp_vlc_codes),
+ INIT_VLC_LE))) {
+ av_log(vc->avctx, AV_LOG_ERROR, " Error generating vlc tables. \n");
goto error;
}
}
av_free(tmp_vlc_bits);
av_free(tmp_vlc_codes);
av_free(codebook_multiplicands);
- return -1;
+ return ret;
}
// Process time domain transforms part (unused in Vorbis I)
vorbis_time_count, vorbis_tdtransform);
if (vorbis_tdtransform) {
- av_log(vc->avccontext, AV_LOG_ERROR, "Vorbis time domain transform data nonzero. \n");
- return -1;
+ av_log(vc->avctx, AV_LOG_ERROR, "Vorbis time domain transform data nonzero. \n");
+ return AVERROR_INVALIDDATA;
}
}
return 0;
static int vorbis_floor0_decode(vorbis_context *vc,
vorbis_floor_data *vfu, float *vec);
-static void create_map(vorbis_context *vc, unsigned floor_number);
+static int create_map(vorbis_context *vc, unsigned floor_number);
static int vorbis_floor1_decode(vorbis_context *vc,
vorbis_floor_data *vfu, float *vec);
static int vorbis_parse_setup_hdr_floors(vorbis_context *vc)
{
GetBitContext *gb = &vc->gb;
- int i,j,k;
+ int i, j, k, ret;
vc->floor_count = get_bits(gb, 6) + 1;
vc->floors = av_mallocz(vc->floor_count * sizeof(*vc->floors));
+ if (!vc->floors)
+ return AVERROR(ENOMEM);
for (i = 0; i < vc->floor_count; ++i) {
vorbis_floor *floor_setup = &vc->floors[i];
floor_setup->data.t1.list = av_mallocz(floor_setup->data.t1.x_list_dim *
sizeof(*floor_setup->data.t1.list));
-
+ if (!floor_setup->data.t1.list)
+ return AVERROR(ENOMEM);
rangebits = get_bits(gb, 4);
rangemax = (1 << rangebits);
if (rangemax > vc->blocksize[1] / 2) {
- av_log(vc->avccontext, AV_LOG_ERROR,
+ av_log(vc->avctx, AV_LOG_ERROR,
"Floor value is too large for blocksize: %u (%"PRIu32")\n",
rangemax, vc->blocksize[1] / 2);
- return -1;
+ return AVERROR_INVALIDDATA;
}
floor_setup->data.t1.list[0].x = 0;
floor_setup->data.t1.list[1].x = rangemax;
}
// Precalculate order of x coordinates - needed for decode
- ff_vorbis_ready_floor1_list(floor_setup->data.t1.list, floor_setup->data.t1.x_list_dim);
+ if (ff_vorbis_ready_floor1_list(vc->avctx,
+ floor_setup->data.t1.list,
+ floor_setup->data.t1.x_list_dim)) {
+ return AVERROR_INVALIDDATA;
+ }
} else if (floor_setup->floor_type == 0) {
unsigned max_codebook_dim = 0;
floor_setup->decode = vorbis_floor0_decode;
floor_setup->data.t0.order = get_bits(gb, 8);
+ if (!floor_setup->data.t0.order) {
+ av_log(vc->avctx, AV_LOG_ERROR, "Floor 0 order is 0.\n");
+ return AVERROR_INVALIDDATA;
+ }
floor_setup->data.t0.rate = get_bits(gb, 16);
+ if (!floor_setup->data.t0.rate) {
+ av_log(vc->avctx, AV_LOG_ERROR, "Floor 0 rate is 0.\n");
+ return AVERROR_INVALIDDATA;
+ }
floor_setup->data.t0.bark_map_size = get_bits(gb, 16);
- floor_setup->data.t0.amplitude_bits = get_bits(gb, 6);
- /* zero would result in a div by zero later *
- * 2^0 - 1 == 0 */
- if (floor_setup->data.t0.amplitude_bits == 0) {
- av_log(vc->avccontext, AV_LOG_ERROR,
- "Floor 0 amplitude bits is 0.\n");
- return -1;
+ if (!floor_setup->data.t0.bark_map_size) {
+ av_log(vc->avctx, AV_LOG_ERROR,
+ "Floor 0 bark map size is 0.\n");
+ return AVERROR_INVALIDDATA;
}
+ floor_setup->data.t0.amplitude_bits = get_bits(gb, 6);
floor_setup->data.t0.amplitude_offset = get_bits(gb, 8);
floor_setup->data.t0.num_books = get_bits(gb, 4) + 1;
floor_setup->data.t0.book_list =
av_malloc(floor_setup->data.t0.num_books);
if (!floor_setup->data.t0.book_list)
- return -1;
+ return AVERROR(ENOMEM);
/* read book indexes */
{
int idx;
}
}
- create_map(vc, i);
+ if ((ret = create_map(vc, i)) < 0)
+ return ret;
/* codebook dim is for padding if codebook dim doesn't *
* divide order+1 then we need to read more data */
av_malloc((floor_setup->data.t0.order + 1 + max_codebook_dim)
* sizeof(*floor_setup->data.t0.lsp));
if (!floor_setup->data.t0.lsp)
- return -1;
+ return AVERROR(ENOMEM);
/* debug output parsed headers */
av_dlog(NULL, "floor0 order: %u\n", floor_setup->data.t0.order);
}
}
} else {
- av_log(vc->avccontext, AV_LOG_ERROR, "Invalid floor type!\n");
- return -1;
+ av_log(vc->avctx, AV_LOG_ERROR, "Invalid floor type!\n");
+ return AVERROR_INVALIDDATA;
}
}
return 0;
vc->residue_count = get_bits(gb, 6)+1;
vc->residues = av_mallocz(vc->residue_count * sizeof(*vc->residues));
+ if (!vc->residues)
+ return AVERROR(ENOMEM);
av_dlog(NULL, " There are %d residues. \n", vc->residue_count);
res_setup->partition_size = get_bits(gb, 24) + 1;
/* Validations to prevent a buffer overflow later. */
if (res_setup->begin>res_setup->end ||
- res_setup->end > vc->avccontext->channels * vc->blocksize[1] / 2 ||
+ res_setup->end > (res_setup->type == 2 ? vc->avctx->channels : 1) * vc->blocksize[1] / 2 ||
(res_setup->end-res_setup->begin) / res_setup->partition_size > V_MAX_PARTITIONS) {
- av_log(vc->avccontext, AV_LOG_ERROR,
+ av_log(vc->avctx, AV_LOG_ERROR,
"partition out of bounds: type, begin, end, size, blocksize: %"PRIu16", %"PRIu32", %"PRIu32", %u, %"PRIu32"\n",
res_setup->type, res_setup->begin, res_setup->end,
res_setup->partition_size, vc->blocksize[1] / 2);
- return -1;
+ return AVERROR_INVALIDDATA;
}
res_setup->classifications = get_bits(gb, 6) + 1;
vc->mapping_count = get_bits(gb, 6)+1;
vc->mappings = av_mallocz(vc->mapping_count * sizeof(*vc->mappings));
+ if (!vc->mappings)
+ return AVERROR(ENOMEM);
av_dlog(NULL, " There are %d mappings. \n", vc->mapping_count);
vorbis_mapping *mapping_setup = &vc->mappings[i];
if (get_bits(gb, 16)) {
- av_log(vc->avccontext, AV_LOG_ERROR, "Other mappings than type 0 are not compliant with the Vorbis I specification. \n");
- return -1;
+ av_log(vc->avctx, AV_LOG_ERROR, "Other mappings than type 0 are not compliant with the Vorbis I specification. \n");
+ return AVERROR_INVALIDDATA;
}
if (get_bits1(gb)) {
mapping_setup->submaps = get_bits(gb, 4) + 1;
sizeof(*mapping_setup->magnitude));
mapping_setup->angle = av_mallocz(mapping_setup->coupling_steps *
sizeof(*mapping_setup->angle));
+ if (!mapping_setup->angle || !mapping_setup->magnitude)
+ return AVERROR(ENOMEM);
+
for (j = 0; j < mapping_setup->coupling_steps; ++j) {
GET_VALIDATED_INDEX(mapping_setup->magnitude[j], ilog(vc->audio_channels - 1), vc->audio_channels)
GET_VALIDATED_INDEX(mapping_setup->angle[j], ilog(vc->audio_channels - 1), vc->audio_channels)
i, mapping_setup->coupling_steps);
if (get_bits(gb, 2)) {
- av_log(vc->avccontext, AV_LOG_ERROR, "%u. mapping setup data invalid.\n", i);
- return -1; // following spec.
+ av_log(vc->avctx, AV_LOG_ERROR, "%u. mapping setup data invalid.\n", i);
+ return AVERROR_INVALIDDATA; // following spec.
}
if (mapping_setup->submaps>1) {
mapping_setup->mux = av_mallocz(vc->audio_channels *
sizeof(*mapping_setup->mux));
+ if (!mapping_setup->mux)
+ return AVERROR(ENOMEM);
+
for (j = 0; j < vc->audio_channels; ++j)
mapping_setup->mux[j] = get_bits(gb, 4);
}
// Process modes part
-static void create_map(vorbis_context *vc, unsigned floor_number)
+static int create_map(vorbis_context *vc, unsigned floor_number)
{
vorbis_floor *floors = vc->floors;
vorbis_floor0 *vf;
n = vc->blocksize[blockflag] / 2;
floors[floor_number].data.t0.map[blockflag] =
av_malloc((n + 1) * sizeof(int32_t)); // n + sentinel
+ if (!floors[floor_number].data.t0.map[blockflag])
+ return AVERROR(ENOMEM);
map = floors[floor_number].data.t0.map[blockflag];
vf = &floors[floor_number].data.t0;
for (idx = 0; idx < n; ++idx) {
map[idx] = floor(BARK((vf->rate * idx) / (2.0f * n)) *
- ((vf->bark_map_size) /
- BARK(vf->rate / 2.0f)));
+ (vf->bark_map_size / BARK(vf->rate / 2.0f)));
if (vf->bark_map_size-1 < map[idx])
map[idx] = vf->bark_map_size - 1;
}
for (idx = 0; idx <= n; ++idx) {
av_dlog(NULL, "floor0 map: map at pos %d is %d\n", idx, map[idx]);
}
+
+ return 0;
}
static int vorbis_parse_setup_hdr_modes(vorbis_context *vc)
vc->mode_count = get_bits(gb, 6) + 1;
vc->modes = av_mallocz(vc->mode_count * sizeof(*vc->modes));
+ if (!vc->modes)
+ return AVERROR(ENOMEM);
av_dlog(NULL, " There are %d modes.\n", vc->mode_count);
static int vorbis_parse_setup_hdr(vorbis_context *vc)
{
GetBitContext *gb = &vc->gb;
+ int ret;
if ((get_bits(gb, 8) != 'v') || (get_bits(gb, 8) != 'o') ||
(get_bits(gb, 8) != 'r') || (get_bits(gb, 8) != 'b') ||
(get_bits(gb, 8) != 'i') || (get_bits(gb, 8) != 's')) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis setup header packet corrupt (no vorbis signature). \n");
- return -1;
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis setup header packet corrupt (no vorbis signature). \n");
+ return AVERROR_INVALIDDATA;
}
- if (vorbis_parse_setup_hdr_codebooks(vc)) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis setup header packet corrupt (codebooks). \n");
- return -2;
+ if ((ret = vorbis_parse_setup_hdr_codebooks(vc))) {
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis setup header packet corrupt (codebooks). \n");
+ return ret;
}
- if (vorbis_parse_setup_hdr_tdtransforms(vc)) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis setup header packet corrupt (time domain transforms). \n");
- return -3;
+ if ((ret = vorbis_parse_setup_hdr_tdtransforms(vc))) {
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis setup header packet corrupt (time domain transforms). \n");
+ return ret;
}
- if (vorbis_parse_setup_hdr_floors(vc)) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis setup header packet corrupt (floors). \n");
- return -4;
+ if ((ret = vorbis_parse_setup_hdr_floors(vc))) {
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis setup header packet corrupt (floors). \n");
+ return ret;
}
- if (vorbis_parse_setup_hdr_residues(vc)) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis setup header packet corrupt (residues). \n");
- return -5;
+ if ((ret = vorbis_parse_setup_hdr_residues(vc))) {
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis setup header packet corrupt (residues). \n");
+ return ret;
}
- if (vorbis_parse_setup_hdr_mappings(vc)) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis setup header packet corrupt (mappings). \n");
- return -6;
+ if ((ret = vorbis_parse_setup_hdr_mappings(vc))) {
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis setup header packet corrupt (mappings). \n");
+ return ret;
}
- if (vorbis_parse_setup_hdr_modes(vc)) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis setup header packet corrupt (modes). \n");
- return -7;
+ if ((ret = vorbis_parse_setup_hdr_modes(vc))) {
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis setup header packet corrupt (modes). \n");
+ return ret;
}
if (!get_bits1(gb)) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis setup header packet corrupt (framing flag). \n");
- return -8; // framing flag bit unset error
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis setup header packet corrupt (framing flag). \n");
+ return AVERROR_INVALIDDATA; // framing flag bit unset error
}
return 0;
if ((get_bits(gb, 8) != 'v') || (get_bits(gb, 8) != 'o') ||
(get_bits(gb, 8) != 'r') || (get_bits(gb, 8) != 'b') ||
(get_bits(gb, 8) != 'i') || (get_bits(gb, 8) != 's')) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis id header packet corrupt (no vorbis signature). \n");
- return -1;
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis id header packet corrupt (no vorbis signature). \n");
+ return AVERROR_INVALIDDATA;
}
vc->version = get_bits_long(gb, 32); //FIXME check 0
vc->audio_channels = get_bits(gb, 8);
if (vc->audio_channels <= 0) {
- av_log(vc->avccontext, AV_LOG_ERROR, "Invalid number of channels\n");
- return -1;
+ av_log(vc->avctx, AV_LOG_ERROR, "Invalid number of channels\n");
+ return AVERROR_INVALIDDATA;
}
vc->audio_samplerate = get_bits_long(gb, 32);
if (vc->audio_samplerate <= 0) {
- av_log(vc->avccontext, AV_LOG_ERROR, "Invalid samplerate\n");
- return -1;
+ av_log(vc->avctx, AV_LOG_ERROR, "Invalid samplerate\n");
+ return AVERROR_INVALIDDATA;
}
vc->bitrate_maximum = get_bits_long(gb, 32);
vc->bitrate_nominal = get_bits_long(gb, 32);
vc->blocksize[0] = (1 << bl0);
vc->blocksize[1] = (1 << bl1);
if (bl0 > 13 || bl0 < 6 || bl1 > 13 || bl1 < 6 || bl1 < bl0) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis id header packet corrupt (illegal blocksize). \n");
- return -3;
- }
- // output format int16
- if (vc->blocksize[1] / 2 * vc->audio_channels * 2 > AVCODEC_MAX_AUDIO_FRAME_SIZE) {
- av_log(vc->avccontext, AV_LOG_ERROR, "Vorbis channel count makes "
- "output packets too large.\n");
- return -4;
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis id header packet corrupt (illegal blocksize). \n");
+ return AVERROR_INVALIDDATA;
}
vc->win[0] = ff_vorbis_vwin[bl0 - 6];
vc->win[1] = ff_vorbis_vwin[bl1 - 6];
if ((get_bits1(gb)) == 0) {
- av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis id header packet corrupt (framing flag not set). \n");
- return -2;
+ av_log(vc->avctx, AV_LOG_ERROR, " Vorbis id header packet corrupt (framing flag not set). \n");
+ return AVERROR_INVALIDDATA;
}
vc->channel_residues = av_malloc((vc->blocksize[1] / 2) * vc->audio_channels * sizeof(*vc->channel_residues));
- vc->channel_floors = av_malloc((vc->blocksize[1] / 2) * vc->audio_channels * sizeof(*vc->channel_floors));
vc->saved = av_mallocz((vc->blocksize[1] / 4) * vc->audio_channels * sizeof(*vc->saved));
+ if (!vc->channel_residues || !vc->saved)
+ return AVERROR(ENOMEM);
+
vc->previous_window = 0;
- ff_mdct_init(&vc->mdct[0], bl0, 1, -vc->scale_bias);
- ff_mdct_init(&vc->mdct[1], bl1, 1, -vc->scale_bias);
+ ff_mdct_init(&vc->mdct[0], bl0, 1, -1.0);
+ ff_mdct_init(&vc->mdct[1], bl1, 1, -1.0);
av_dlog(NULL, " vorbis version %d \n audio_channels %d \n audio_samplerate %d \n bitrate_max %d \n bitrate_nom %d \n bitrate_min %d \n blk_0 %d blk_1 %d \n ",
vc->version, vc->audio_channels, vc->audio_samplerate, vc->bitrate_maximum, vc->bitrate_nominal, vc->bitrate_minimum, vc->blocksize[0], vc->blocksize[1]);
// Process the extradata using the functions above (identification header, setup header)
-static av_cold int vorbis_decode_init(AVCodecContext *avccontext)
+static av_cold int vorbis_decode_init(AVCodecContext *avctx)
{
- vorbis_context *vc = avccontext->priv_data ;
- uint8_t *headers = avccontext->extradata;
- int headers_len = avccontext->extradata_size;
+ vorbis_context *vc = avctx->priv_data;
+ uint8_t *headers = avctx->extradata;
+ int headers_len = avctx->extradata_size;
uint8_t *header_start[3];
int header_len[3];
- GetBitContext *gb = &(vc->gb);
- int hdr_type;
+ GetBitContext *gb = &vc->gb;
+ int hdr_type, ret;
- vc->avccontext = avccontext;
- dsputil_init(&vc->dsp, avccontext);
- ff_fmt_convert_init(&vc->fmt_conv, avccontext);
+ vc->avctx = avctx;
+ ff_vorbisdsp_init(&vc->dsp);
+ avpriv_float_dsp_init(&vc->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
+ ff_fmt_convert_init(&vc->fmt_conv, avctx);
- if (avccontext->request_sample_fmt == AV_SAMPLE_FMT_FLT) {
- avccontext->sample_fmt = AV_SAMPLE_FMT_FLT;
- vc->scale_bias = 1.0f;
- } else {
- avccontext->sample_fmt = AV_SAMPLE_FMT_S16;
- vc->scale_bias = 32768.0f;
- }
+ avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;
if (!headers_len) {
- av_log(avccontext, AV_LOG_ERROR, "Extradata missing.\n");
- return -1;
+ av_log(avctx, AV_LOG_ERROR, "Extradata missing.\n");
+ return AVERROR_INVALIDDATA;
}
- if (ff_split_xiph_headers(headers, headers_len, 30, header_start, header_len) < 0) {
- av_log(avccontext, AV_LOG_ERROR, "Extradata corrupt.\n");
- return -1;
+ if ((ret = avpriv_split_xiph_headers(headers, headers_len, 30, header_start, header_len)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Extradata corrupt.\n");
+ return ret;
}
init_get_bits(gb, header_start[0], header_len[0]*8);
hdr_type = get_bits(gb, 8);
if (hdr_type != 1) {
- av_log(avccontext, AV_LOG_ERROR, "First header is not the id header.\n");
- return -1;
+ av_log(avctx, AV_LOG_ERROR, "First header is not the id header.\n");
+ return AVERROR_INVALIDDATA;
}
- if (vorbis_parse_id_hdr(vc)) {
- av_log(avccontext, AV_LOG_ERROR, "Id header corrupt.\n");
+ if ((ret = vorbis_parse_id_hdr(vc))) {
+ av_log(avctx, AV_LOG_ERROR, "Id header corrupt.\n");
vorbis_free(vc);
- return -1;
+ return ret;
}
init_get_bits(gb, header_start[2], header_len[2]*8);
hdr_type = get_bits(gb, 8);
if (hdr_type != 5) {
- av_log(avccontext, AV_LOG_ERROR, "Third header is not the setup header.\n");
+ av_log(avctx, AV_LOG_ERROR, "Third header is not the setup header.\n");
vorbis_free(vc);
- return -1;
+ return AVERROR_INVALIDDATA;
}
- if (vorbis_parse_setup_hdr(vc)) {
- av_log(avccontext, AV_LOG_ERROR, "Setup header corrupt.\n");
+ if ((ret = vorbis_parse_setup_hdr(vc))) {
+ av_log(avctx, AV_LOG_ERROR, "Setup header corrupt.\n");
vorbis_free(vc);
- return -1;
+ return ret;
}
if (vc->audio_channels > 8)
- avccontext->channel_layout = 0;
+ avctx->channel_layout = 0;
else
- avccontext->channel_layout = ff_vorbis_channel_layouts[vc->audio_channels - 1];
+ avctx->channel_layout = ff_vorbis_channel_layouts[vc->audio_channels - 1];
- avccontext->channels = vc->audio_channels;
- avccontext->sample_rate = vc->audio_samplerate;
- avccontext->frame_size = FFMIN(vc->blocksize[0], vc->blocksize[1]) >> 2;
+ avctx->channels = vc->audio_channels;
+ avctx->sample_rate = vc->audio_samplerate;
- return 0 ;
+ return 0;
}
// Decode audiopackets -------------------------------------------------
unsigned amplitude, book_idx;
unsigned blockflag = vc->modes[vc->mode_number].blockflag;
+ if (!vf->amplitude_bits)
+ return 1;
+
amplitude = get_bits(&vc->gb, vf->amplitude_bits);
if (amplitude > 0) {
float last = 0;
book_idx = get_bits(&vc->gb, ilog(vf->num_books));
if (book_idx >= vf->num_books) {
- av_log(vc->avccontext, AV_LOG_ERROR,
- "floor0 dec: booknumber too high!\n");
+ av_log(vc->avctx, AV_LOG_ERROR, "floor0 dec: booknumber too high!\n");
book_idx = 0;
}
av_dlog(NULL, "floor0 dec: booknumber: %u\n", book_idx);
codebook = vc->codebooks[vf->book_list[book_idx]];
/* Invalid codebook! */
if (!codebook.codevectors)
- return -1;
+ return AVERROR_INVALIDDATA;
while (lsp_len<vf->order) {
int vec_off;
if (highroom < lowroom) {
room = highroom * 2;
} else {
- room = lowroom * 2; // SPEC mispelling
+ room = lowroom * 2; // SPEC misspelling
}
if (val) {
floor1_flag[low_neigh_offs] = 1;
floor1_flag[i] = 1;
if (val >= room) {
if (highroom > lowroom) {
- floor1_Y_final[i] = val - lowroom + predicted;
+ floor1_Y_final[i] = av_clip_uint16(val - lowroom + predicted);
} else {
- floor1_Y_final[i] = predicted - val + highroom - 1;
+ floor1_Y_final[i] = av_clip_uint16(predicted - val + highroom - 1);
}
} else {
if (val & 1) {
- floor1_Y_final[i] = predicted - (val + 1) / 2;
+ floor1_Y_final[i] = av_clip_uint16(predicted - (val + 1) / 2);
} else {
- floor1_Y_final[i] = predicted + val / 2;
+ floor1_Y_final[i] = av_clip_uint16(predicted + val / 2);
}
}
} else {
floor1_flag[i] = 0;
- floor1_Y_final[i] = predicted;
+ floor1_Y_final[i] = av_clip_uint16(predicted);
}
av_dlog(NULL, " Decoded floor(%d) = %u / val %u\n",
return 0;
}
+static av_always_inline int setup_classifs(vorbis_context *vc,
+ vorbis_residue *vr,
+ uint8_t *do_not_decode,
+ unsigned ch_used,
+ int partition_count)
+{
+ int p, j, i;
+ unsigned c_p_c = vc->codebooks[vr->classbook].dimensions;
+ unsigned inverse_class = ff_inverse[vr->classifications];
+ unsigned temp, temp2;
+ for (p = 0, j = 0; j < ch_used; ++j) {
+ if (!do_not_decode[j]) {
+ temp = get_vlc2(&vc->gb, vc->codebooks[vr->classbook].vlc.table,
+ vc->codebooks[vr->classbook].nb_bits, 3);
+
+ av_dlog(NULL, "Classword: %u\n", temp);
+
+ if (temp <= 65536) {
+ for (i = partition_count + c_p_c - 1; i >= partition_count; i--) {
+ temp2 = (((uint64_t)temp) * inverse_class) >> 32;
+
+ if (i < vr->ptns_to_read)
+ vr->classifs[p + i] = temp - temp2 * vr->classifications;
+ temp = temp2;
+ }
+ } else {
+ for (i = partition_count + c_p_c - 1; i >= partition_count; i--) {
+ temp2 = temp / vr->classifications;
+
+ if (i < vr->ptns_to_read)
+ vr->classifs[p + i] = temp - temp2 * vr->classifications;
+ temp = temp2;
+ }
+ }
+ }
+ p += vr->ptns_to_read;
+ }
+ return 0;
+}
// Read and decode residue
static av_always_inline int vorbis_residue_decode_internal(vorbis_context *vc,
uint8_t *do_not_decode,
float *vec,
unsigned vlen,
+ unsigned ch_left,
int vr_type)
{
GetBitContext *gb = &vc->gb;
unsigned c_p_c = vc->codebooks[vr->classbook].dimensions;
- unsigned ptns_to_read = vr->ptns_to_read;
uint8_t *classifs = vr->classifs;
unsigned pass, ch_used, i, j, k, l;
+ unsigned max_output = (ch - 1) * vlen;
+ int ptns_to_read = vr->ptns_to_read;
if (vr_type == 2) {
for (j = 1; j < ch; ++j)
if (do_not_decode[0])
return 0;
ch_used = 1;
+ max_output += vr->end / ch;
} else {
ch_used = ch;
+ max_output += vr->end;
+ }
+
+ if (max_output > ch_left * vlen) {
+ av_log(vc->avctx, AV_LOG_ERROR, "Insufficient output buffer\n");
+ return AVERROR_INVALIDDATA;
}
av_dlog(NULL, " residue type 0/1/2 decode begin, ch: %d cpc %d \n", ch, c_p_c);
for (pass = 0; pass <= vr->maxpass; ++pass) { // FIXME OPTIMIZE?
- uint16_t voffset, partition_count, j_times_ptns_to_read;
+ int voffset, partition_count, j_times_ptns_to_read;
voffset = vr->begin;
for (partition_count = 0; partition_count < ptns_to_read;) { // SPEC error
if (!pass) {
- unsigned inverse_class = ff_inverse[vr->classifications];
- for (j_times_ptns_to_read = 0, j = 0; j < ch_used; ++j) {
- if (!do_not_decode[j]) {
- unsigned temp = get_vlc2(gb, vc->codebooks[vr->classbook].vlc.table,
- vc->codebooks[vr->classbook].nb_bits, 3);
-
- av_dlog(NULL, "Classword: %u\n", temp);
-
- assert(vr->classifications > 1 && temp <= 65536); //needed for inverse[]
- for (i = 0; i < c_p_c; ++i) {
- unsigned temp2;
-
- temp2 = (((uint64_t)temp) * inverse_class) >> 32;
- if (partition_count + c_p_c - 1 - i < ptns_to_read)
- classifs[j_times_ptns_to_read + partition_count + c_p_c - 1 - i] = temp - temp2 * vr->classifications;
- temp = temp2;
- }
- }
- j_times_ptns_to_read += ptns_to_read;
- }
+ setup_classifs(vc, vr, do_not_decode, ch_used, partition_count);
}
for (i = 0; (i < c_p_c) && (partition_count < ptns_to_read); ++i) {
for (j_times_ptns_to_read = 0, j = 0; j < ch_used; ++j) {
if (vqbook >= 0 && vc->codebooks[vqbook].codevectors) {
unsigned coffs;
unsigned dim = vc->codebooks[vqbook].dimensions;
- unsigned step = dim == 1 ? vr->partition_size
- : FASTDIV(vr->partition_size, dim);
+ unsigned step = FASTDIV(vr->partition_size << 1, dim << 1);
vorbis_codebook codebook = vc->codebooks[vqbook];
if (vr_type == 0) {
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim;
for (l = 0; l < dim; ++l)
- vec[voffs + k + l * step] += codebook.codevectors[coffs + l]; // FPMATH
+ vec[voffs + k + l * step] += codebook.codevectors[coffs + l];
}
} else if (vr_type == 1) {
voffs = voffset + j * vlen;
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim;
for (l = 0; l < dim; ++l, ++voffs) {
- vec[voffs]+=codebook.codevectors[coffs+l]; // FPMATH
+ vec[voffs]+=codebook.codevectors[coffs+l];
av_dlog(NULL, " pass %d offs: %d curr: %f change: %f cv offs.: %d \n",
pass, voffs, vec[voffs], codebook.codevectors[coffs+l], coffs);
if (dim == 2) {
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * 2;
- vec[voffs + k ] += codebook.codevectors[coffs ]; // FPMATH
- vec[voffs + k + vlen] += codebook.codevectors[coffs + 1]; // FPMATH
+ vec[voffs + k ] += codebook.codevectors[coffs ];
+ vec[voffs + k + vlen] += codebook.codevectors[coffs + 1];
}
} else if (dim == 4) {
for (k = 0; k < step; ++k, voffs += 2) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * 4;
- vec[voffs ] += codebook.codevectors[coffs ]; // FPMATH
- vec[voffs + 1 ] += codebook.codevectors[coffs + 2]; // FPMATH
- vec[voffs + vlen ] += codebook.codevectors[coffs + 1]; // FPMATH
- vec[voffs + vlen + 1] += codebook.codevectors[coffs + 3]; // FPMATH
+ vec[voffs ] += codebook.codevectors[coffs ];
+ vec[voffs + 1 ] += codebook.codevectors[coffs + 2];
+ vec[voffs + vlen ] += codebook.codevectors[coffs + 1];
+ vec[voffs + vlen + 1] += codebook.codevectors[coffs + 3];
}
} else
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim;
for (l = 0; l < dim; l += 2, voffs++) {
- vec[voffs ] += codebook.codevectors[coffs + l ]; // FPMATH
- vec[voffs + vlen] += codebook.codevectors[coffs + l + 1]; // FPMATH
+ vec[voffs ] += codebook.codevectors[coffs + l ];
+ vec[voffs + vlen] += codebook.codevectors[coffs + l + 1];
av_dlog(NULL, " pass %d offs: %d curr: %f change: %f cv offs.: %d+%d \n",
pass, voffset / ch + (voffs % ch) * vlen,
}
} else if (vr_type == 2) {
- voffs = voffset;
+ unsigned voffs_div = FASTDIV(voffset << 1, ch <<1);
+ unsigned voffs_mod = voffset - voffs_div * ch;
for (k = 0; k < step; ++k) {
coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim;
- for (l = 0; l < dim; ++l, ++voffs) {
- vec[voffs / ch + (voffs % ch) * vlen] += codebook.codevectors[coffs + l]; // FPMATH FIXME use if and counter instead of / and %
+ for (l = 0; l < dim; ++l) {
+ vec[voffs_div + voffs_mod * vlen] +=
+ codebook.codevectors[coffs + l];
av_dlog(NULL, " pass %d offs: %d curr: %f change: %f cv offs.: %d+%d \n",
- pass, voffset / ch + (voffs % ch) * vlen,
- vec[voffset / ch + (voffs % ch) * vlen],
+ pass, voffs_div + voffs_mod * vlen,
+ vec[voffs_div + voffs_mod * vlen],
codebook.codevectors[coffs + l], coffs, l);
+
+ if (++voffs_mod == ch) {
+ voffs_div++;
+ voffs_mod = 0;
+ }
}
}
}
static inline int vorbis_residue_decode(vorbis_context *vc, vorbis_residue *vr,
unsigned ch,
uint8_t *do_not_decode,
- float *vec, unsigned vlen)
+ float *vec, unsigned vlen,
+ unsigned ch_left)
{
if (vr->type == 2)
- return vorbis_residue_decode_internal(vc, vr, ch, do_not_decode, vec, vlen, 2);
+ return vorbis_residue_decode_internal(vc, vr, ch, do_not_decode, vec, vlen, ch_left, 2);
else if (vr->type == 1)
- return vorbis_residue_decode_internal(vc, vr, ch, do_not_decode, vec, vlen, 1);
+ return vorbis_residue_decode_internal(vc, vr, ch, do_not_decode, vec, vlen, ch_left, 1);
else if (vr->type == 0)
- return vorbis_residue_decode_internal(vc, vr, ch, do_not_decode, vec, vlen, 0);
+ return vorbis_residue_decode_internal(vc, vr, ch, do_not_decode, vec, vlen, ch_left, 0);
else {
- av_log(vc->avccontext, AV_LOG_ERROR, " Invalid residue type while residue decode?! \n");
- return -1;
+ av_log(vc->avctx, AV_LOG_ERROR, " Invalid residue type while residue decode?! \n");
+ return AVERROR_INVALIDDATA;
}
}
-void vorbis_inverse_coupling(float *mag, float *ang, int blocksize)
+void ff_vorbis_inverse_coupling(float *mag, float *ang, intptr_t blocksize)
{
int i;
for (i = 0; i < blocksize; i++) {
// Decode the audio packet using the functions above
-static int vorbis_parse_audio_packet(vorbis_context *vc)
+static int vorbis_parse_audio_packet(vorbis_context *vc, float **floor_ptr)
{
GetBitContext *gb = &vc->gb;
FFTContext *mdct;
uint8_t do_not_decode[255];
vorbis_mapping *mapping;
float *ch_res_ptr = vc->channel_residues;
- float *ch_floor_ptr = vc->channel_floors;
uint8_t res_chan[255];
unsigned res_num = 0;
int retlen = 0;
+ unsigned ch_left = vc->audio_channels;
+ unsigned vlen;
if (get_bits1(gb)) {
- av_log(vc->avccontext, AV_LOG_ERROR, "Not a Vorbis I audio packet.\n");
- return -1; // packet type not audio
+ av_log(vc->avctx, AV_LOG_ERROR, "Not a Vorbis I audio packet.\n");
+ return AVERROR_INVALIDDATA; // packet type not audio
}
if (vc->mode_count == 1) {
blockflag = vc->modes[mode_number].blockflag;
blocksize = vc->blocksize[blockflag];
- if (blockflag)
- skip_bits(gb, 2); // previous_window, next_window
+ vlen = blocksize / 2;
+ if (blockflag) {
+ previous_window = get_bits(gb, 1);
+ skip_bits1(gb); // next_window
+ }
- memset(ch_res_ptr, 0, sizeof(float) * vc->audio_channels * blocksize / 2); //FIXME can this be removed ?
- memset(ch_floor_ptr, 0, sizeof(float) * vc->audio_channels * blocksize / 2); //FIXME can this be removed ?
+ memset(ch_res_ptr, 0, sizeof(float) * vc->audio_channels * vlen); //FIXME can this be removed ?
+ for (i = 0; i < vc->audio_channels; ++i)
+ memset(floor_ptr[i], 0, vlen * sizeof(floor_ptr[0][0])); //FIXME can this be removed ?
// Decode floor
floor = &vc->floors[mapping->submap_floor[0]];
}
- ret = floor->decode(vc, &floor->data, ch_floor_ptr);
+ ret = floor->decode(vc, &floor->data, floor_ptr[i]);
if (ret < 0) {
- av_log(vc->avccontext, AV_LOG_ERROR, "Invalid codebook in vorbis_floor_decode.\n");
- return -1;
+ av_log(vc->avctx, AV_LOG_ERROR, "Invalid codebook in vorbis_floor_decode.\n");
+ return AVERROR_INVALIDDATA;
}
no_residue[i] = ret;
- ch_floor_ptr += blocksize / 2;
}
// Nonzero vector propagate
for (i = 0; i < mapping->submaps; ++i) {
vorbis_residue *residue;
unsigned ch = 0;
+ int ret;
for (j = 0; j < vc->audio_channels; ++j) {
if ((mapping->submaps == 1) || (i == mapping->mux[j])) {
}
}
residue = &vc->residues[mapping->submap_residue[i]];
- vorbis_residue_decode(vc, residue, ch, do_not_decode, ch_res_ptr, blocksize/2);
+ if (ch_left < ch) {
+ av_log(vc->avctx, AV_LOG_ERROR, "Too many channels in vorbis_floor_decode.\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (ch) {
+ ret = vorbis_residue_decode(vc, residue, ch, do_not_decode, ch_res_ptr, vlen, ch_left);
+ if (ret < 0)
+ return ret;
+ }
- ch_res_ptr += ch * blocksize / 2;
+ ch_res_ptr += ch * vlen;
+ ch_left -= ch;
}
+ if (ch_left > 0)
+ return AVERROR_INVALIDDATA;
+
// Inverse coupling
for (i = mapping->coupling_steps - 1; i >= 0; --i) { //warning: i has to be signed
mdct = &vc->mdct[blockflag];
for (j = vc->audio_channels-1;j >= 0; j--) {
- ch_floor_ptr = vc->channel_floors + j * blocksize / 2;
ch_res_ptr = vc->channel_residues + res_chan[j] * blocksize / 2;
- vc->dsp.vector_fmul(ch_floor_ptr, ch_floor_ptr, ch_res_ptr, blocksize / 2);
- mdct->imdct_half(mdct, ch_res_ptr, ch_floor_ptr);
+ vc->fdsp.vector_fmul(floor_ptr[j], floor_ptr[j], ch_res_ptr, blocksize / 2);
+ mdct->imdct_half(mdct, ch_res_ptr, floor_ptr[j]);
}
-// Overlap/add, save data for next overlapping FPMATH
+// Overlap/add, save data for next overlapping
retlen = (blocksize + vc->blocksize[previous_window]) / 4;
for (j = 0; j < vc->audio_channels; j++) {
unsigned bs1 = vc->blocksize[1];
float *residue = vc->channel_residues + res_chan[j] * blocksize / 2;
float *saved = vc->saved + j * bs1 / 4;
- float *ret = vc->channel_floors + j * retlen;
+ float *ret = floor_ptr[j];
float *buf = residue;
const float *win = vc->win[blockflag & previous_window];
if (blockflag == previous_window) {
- vc->dsp.vector_fmul_window(ret, saved, buf, win, blocksize / 4);
+ vc->fdsp.vector_fmul_window(ret, saved, buf, win, blocksize / 4);
} else if (blockflag > previous_window) {
- vc->dsp.vector_fmul_window(ret, saved, buf, win, bs0 / 4);
+ vc->fdsp.vector_fmul_window(ret, saved, buf, win, bs0 / 4);
memcpy(ret+bs0/2, buf+bs0/4, ((bs1-bs0)/4) * sizeof(float));
} else {
memcpy(ret, saved, ((bs1 - bs0) / 4) * sizeof(float));
- vc->dsp.vector_fmul_window(ret + (bs1 - bs0) / 4, saved + (bs1 - bs0) / 4, buf, win, bs0 / 4);
+ vc->fdsp.vector_fmul_window(ret + (bs1 - bs0) / 4, saved + (bs1 - bs0) / 4, buf, win, bs0 / 4);
}
memcpy(saved, buf + blocksize / 4, blocksize / 4 * sizeof(float));
}
// Return the decoded audio packet through the standard api
-static int vorbis_decode_frame(AVCodecContext *avccontext,
- void *data, int *data_size,
- AVPacket *avpkt)
+static int vorbis_decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame_ptr, AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
- vorbis_context *vc = avccontext->priv_data ;
- GetBitContext *gb = &(vc->gb);
- const float *channel_ptrs[255];
- int i, len;
-
- if (!buf_size)
- return 0;
+ vorbis_context *vc = avctx->priv_data;
+ AVFrame *frame = data;
+ GetBitContext *gb = &vc->gb;
+ float *channel_ptrs[255];
+ int i, len, ret;
av_dlog(NULL, "packet length %d \n", buf_size);
- init_get_bits(gb, buf, buf_size*8);
-
- len = vorbis_parse_audio_packet(vc);
+ /* get output buffer */
+ frame->nb_samples = vc->blocksize[1] / 2;
+ if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
- if (len <= 0) {
- *data_size = 0;
- return buf_size;
+ if (vc->audio_channels > 8) {
+ for (i = 0; i < vc->audio_channels; i++)
+ channel_ptrs[i] = (float *)frame->extended_data[i];
+ } else {
+ for (i = 0; i < vc->audio_channels; i++) {
+ int ch = ff_vorbis_channel_layout_offsets[vc->audio_channels - 1][i];
+ channel_ptrs[ch] = (float *)frame->extended_data[i];
+ }
}
+ init_get_bits(gb, buf, buf_size*8);
+
+ if ((len = vorbis_parse_audio_packet(vc, channel_ptrs)) <= 0)
+ return len;
+
if (!vc->first_frame) {
vc->first_frame = 1;
- *data_size = 0;
- return buf_size ;
+ *got_frame_ptr = 0;
+ av_frame_unref(frame);
+ return buf_size;
}
av_dlog(NULL, "parsed %d bytes %d bits, returned %d samples (*ch*bits) \n",
get_bits_count(gb) / 8, get_bits_count(gb) % 8, len);
- if (vc->audio_channels > 8) {
- for (i = 0; i < vc->audio_channels; i++)
- channel_ptrs[i] = vc->channel_floors + i * len;
- } else {
- for (i = 0; i < vc->audio_channels; i++)
- channel_ptrs[i] = vc->channel_floors +
- len * ff_vorbis_channel_layout_offsets[vc->audio_channels - 1][i];
- }
-
- if (avccontext->sample_fmt == AV_SAMPLE_FMT_FLT)
- vc->fmt_conv.float_interleave(data, channel_ptrs, len, vc->audio_channels);
- else
- vc->fmt_conv.float_to_int16_interleave(data, channel_ptrs, len,
- vc->audio_channels);
-
- *data_size = len * vc->audio_channels *
- av_get_bytes_per_sample(avccontext->sample_fmt);
+ frame->nb_samples = len;
+ *got_frame_ptr = 1;
- return buf_size ;
+ return buf_size;
}
// Close decoder
-static av_cold int vorbis_decode_close(AVCodecContext *avccontext)
+static av_cold int vorbis_decode_close(AVCodecContext *avctx)
{
- vorbis_context *vc = avccontext->priv_data;
+ vorbis_context *vc = avctx->priv_data;
vorbis_free(vc);
- return 0 ;
+ return 0;
+}
+
+static av_cold void vorbis_decode_flush(AVCodecContext *avctx)
+{
+ vorbis_context *vc = avctx->priv_data;
+
+ if (vc->saved) {
+ memset(vc->saved, 0, (vc->blocksize[1] / 4) * vc->audio_channels *
+ sizeof(*vc->saved));
+ }
+ vc->previous_window = 0;
}
AVCodec ff_vorbis_decoder = {
- .name = "vorbis",
- .type = AVMEDIA_TYPE_AUDIO,
- .id = CODEC_ID_VORBIS,
- .priv_data_size = sizeof(vorbis_context),
- .init = vorbis_decode_init,
- .close = vorbis_decode_close,
- .decode = vorbis_decode_frame,
- .long_name = NULL_IF_CONFIG_SMALL("Vorbis"),
+ .name = "vorbis",
+ .long_name = NULL_IF_CONFIG_SMALL("Vorbis"),
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_VORBIS,
+ .priv_data_size = sizeof(vorbis_context),
+ .init = vorbis_decode_init,
+ .close = vorbis_decode_close,
+ .decode = vorbis_decode_frame,
+ .flush = vorbis_decode_flush,
+ .capabilities = CODEC_CAP_DR1,
.channel_layouts = ff_vorbis_channel_layouts,
- .sample_fmts = (const enum AVSampleFormat[]) {
- AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE
- },
+ .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP,
+ AV_SAMPLE_FMT_NONE },
};
-
projects / ffmpeg / blobdiff