static int mpc_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
MPCContext *c = s->priv_data;
AVStream *st;
int t;
t = get_le24(&s->pb);
if(t != MKTAG('M', 'P', '+', 0)){
if(t != MKTAG('I', 'D', '3', 0)){
av_log(s, AV_LOG_ERROR, "Not a Musepack file\n");
return -1;
}
/* skip ID3 tags and try again */
url_fskip(&s->pb, 3);
t = get_byte(&s->pb) << 21;
t |= get_byte(&s->pb) << 14;
t |= get_byte(&s->pb) << 7;
t |= get_byte(&s->pb);
av_log(s, AV_LOG_DEBUG, "Skipping %d(%X) bytes of ID3 data\n", t, t);
url_fskip(&s->pb, t);
if(get_le24(&s->pb) != MKTAG('M', 'P', '+', 0)){
av_log(s, AV_LOG_ERROR, "Not a Musepack file\n");
return -1;
}
}
c->ver = get_byte(&s->pb);
if(c->ver != 0x07 && c->ver != 0x17){
av_log(s, AV_LOG_ERROR, "Can demux Musepack SV7, got version %02X\n", c->ver);
return -1;
}
c->fcount = get_le32(&s->pb);
if((int64_t)c->fcount * sizeof(MPCFrame) >= UINT_MAX){
av_log(s, AV_LOG_ERROR, "Too many frames, seeking is not possible\n");
return -1;
}
c->frames = av_malloc(c->fcount * sizeof(MPCFrame));
c->curframe = 0;
c->lastframe = -1;
c->curbits = 8;
c->frames_noted = 0;
st = av_new_stream(s, 0);
if (!st)
return AVERROR_NOMEM;
st->codec->codec_type = CODEC_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_MUSEPACK7;
st->codec->channels = 2;
st->codec->bits_per_sample = 16;
st->codec->extradata_size = 16;
st->codec->extradata = av_mallocz(st->codec->extradata_size+FF_INPUT_BUFFER_PADDING_SIZE);
get_buffer(&s->pb, st->codec->extradata, 16);
st->codec->sample_rate = mpc_rate[st->codec->extradata[2] & 3];
av_set_pts_info(st, 32, MPC_FRAMESIZE, st->codec->sample_rate);
/* scan for seekpoints */
s->start_time = 0;
s->duration = (int64_t)c->fcount * MPC_FRAMESIZE * AV_TIME_BASE / st->codec->sample_rate;
return 0;
}
// Validates the VP8X header and skips over it.
// Returns VP8_STATUS_BITSTREAM_ERROR for invalid VP8X header,
// VP8_STATUS_NOT_ENOUGH_DATA in case of insufficient data, and
// VP8_STATUS_OK otherwise.
// If a VP8X chunk is found, found_vp8x is set to true and *width_ptr,
// *height_ptr and *flags_ptr are set to the corresponding values extracted
// from the VP8X chunk.
static VP8StatusCode ParseVP8X(const uint8_t** const data,
size_t* const data_size,
int* const found_vp8x,
int* const width_ptr, int* const height_ptr,
uint32_t* const flags_ptr) {
const uint32_t vp8x_size = CHUNK_HEADER_SIZE + VP8X_CHUNK_SIZE;
assert(data != NULL);
assert(data_size != NULL);
assert(found_vp8x != NULL);
*found_vp8x = 0;
if (*data_size < CHUNK_HEADER_SIZE) {
return VP8_STATUS_NOT_ENOUGH_DATA; // Insufficient data.
}
if (!memcmp(*data, "VP8X", TAG_SIZE)) {
int width, height;
uint32_t flags;
const uint32_t chunk_size = get_le32(*data + TAG_SIZE);
if (chunk_size != VP8X_CHUNK_SIZE) {
return VP8_STATUS_BITSTREAM_ERROR; // Wrong chunk size.
}
// Verify if enough data is available to validate the VP8X chunk.
if (*data_size < vp8x_size) {
return VP8_STATUS_NOT_ENOUGH_DATA; // Insufficient data.
}
flags = get_le32(*data + 8);
width = 1 + get_le24(*data + 12);
height = 1 + get_le24(*data + 15);
if (width * (uint64_t)height >= MAX_IMAGE_AREA) {
return VP8_STATUS_BITSTREAM_ERROR; // image is too large
}
if (flags_ptr != NULL) *flags_ptr = flags;
if (width_ptr != NULL) *width_ptr = width;
if (height_ptr != NULL) *height_ptr = height;
// Skip over VP8X header bytes.
*data += vp8x_size;
*data_size -= vp8x_size;
*found_vp8x = 1;
}
return VP8_STATUS_OK;
}
static VP8StatusCode ParseVP8X(const uint8_t** const data,
size_t* const data_size,
int* const found_vp8x,
int* const width_ptr, int* const height_ptr,
uint32_t* const flags_ptr) {
const uint32_t vp8x_size = CHUNK_HEADER_SIZE + VP8X_CHUNK_SIZE;
assert(data != NULL);
assert(data_size != NULL);
assert(found_vp8x != NULL);
*found_vp8x = 0;
if (*data_size < CHUNK_HEADER_SIZE) {
return VP8_STATUS_NOT_ENOUGH_DATA;
}
if (!memcmp(*data, "VP8X", TAG_SIZE)) {
int width, height;
uint32_t flags;
const uint32_t chunk_size = get_le32(*data + TAG_SIZE);
if (chunk_size != VP8X_CHUNK_SIZE) {
return VP8_STATUS_BITSTREAM_ERROR;
}
if (*data_size < vp8x_size) {
return VP8_STATUS_NOT_ENOUGH_DATA;
}
flags = get_le32(*data + 8);
width = 1 + get_le24(*data + 12);
height = 1 + get_le24(*data + 15);
if (width * (uint64_t)height >= MAX_IMAGE_AREA) {
return VP8_STATUS_BITSTREAM_ERROR;
}
if (flags_ptr != NULL) *flags_ptr = flags;
if (width_ptr != NULL) *width_ptr = width;
if (height_ptr != NULL) *height_ptr = height;
*data += vp8x_size;
*data_size -= vp8x_size;
*found_vp8x = 1;
}
return VP8_STATUS_OK;
}
static int mpc_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
MPCContext *c = s->priv_data;
AVStream *st;
if(get_le24(s->pb) != MKTAG('M', 'P', '+', 0)){
av_log(s, AV_LOG_ERROR, "Not a Musepack file\n");
return -1;
}
c->ver = get_byte(s->pb);
if(c->ver != 0x07 && c->ver != 0x17){
av_log(s, AV_LOG_ERROR, "Can demux Musepack SV7, got version %02X\n", c->ver);
return -1;
}
c->fcount = get_le32(s->pb);
if((int64_t)c->fcount * sizeof(MPCFrame) >= UINT_MAX){
av_log(s, AV_LOG_ERROR, "Too many frames, seeking is not possible\n");
return -1;
}
c->frames = av_malloc(c->fcount * sizeof(MPCFrame));
c->curframe = 0;
c->lastframe = -1;
c->curbits = 8;
c->frames_noted = 0;
st = av_new_stream(s, 0);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_MUSEPACK7;
st->codec->channels = 2;
st->codec->bits_per_coded_sample = 16;
st->codec->extradata_size = 16;
st->codec->extradata = av_mallocz(st->codec->extradata_size+FF_INPUT_BUFFER_PADDING_SIZE);
get_buffer(s->pb, st->codec->extradata, 16);
st->codec->sample_rate = mpc_rate[st->codec->extradata[2] & 3];
av_set_pts_info(st, 32, MPC_FRAMESIZE, st->codec->sample_rate);
/* scan for seekpoints */
st->start_time = 0;
st->duration = c->fcount;
/* try to read APE tags */
if (!url_is_streamed(s->pb)) {
int64_t pos = url_ftell(s->pb);
ff_ape_parse_tag(s);
if (!av_metadata_get(s->metadata, "", NULL, AV_METADATA_IGNORE_SUFFIX))
ff_id3v1_read(s);
url_fseek(s->pb, pos, SEEK_SET);
}
return 0;
}
static int vc1t_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
ByteIOContext *pb = s->pb;
AVStream *st;
int frames;
uint32_t fps;
frames = get_le24(pb);
if(get_byte(pb) != 0xC5 || get_le32(pb) != 4)
return -1;
/* init video codec */
st = av_new_stream(s, 0);
if (!st)
return -1;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_WMV3;
st->codec->extradata = av_malloc(VC1_EXTRADATA_SIZE);
st->codec->extradata_size = VC1_EXTRADATA_SIZE;
get_buffer(pb, st->codec->extradata, VC1_EXTRADATA_SIZE);
st->codec->height = get_le32(pb);
st->codec->width = get_le32(pb);
if(get_le32(pb) != 0xC)
return -1;
url_fskip(pb, 8);
fps = get_le32(pb);
if(fps == 0xFFFFFFFF)
av_set_pts_info(st, 32, 1, 1000);
else{
if (!fps) {
av_log(s, AV_LOG_ERROR, "Zero FPS specified, defaulting to 1 FPS\n");
fps = 1;
}
av_set_pts_info(st, 24, 1, fps);
st->duration = frames;
}
return 0;
}
static int vc1t_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
ByteIOContext *pb = s->pb;
AVStream *st;
int fps, frames;
frames = get_le24(pb);
if(get_byte(pb) != 0xC5 || get_le32(pb) != 4)
return -1;
/* init video codec */
st = av_new_stream(s, 0);
if (!st)
return -1;
st->codec->codec_type = CODEC_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_WMV3;
st->codec->extradata = av_malloc(VC1_EXTRADATA_SIZE);
st->codec->extradata_size = VC1_EXTRADATA_SIZE;
get_buffer(pb, st->codec->extradata, VC1_EXTRADATA_SIZE);
st->codec->height = get_le32(pb);
st->codec->width = get_le32(pb);
if(get_le32(pb) != 0xC)
return -1;
url_fskip(pb, 8);
fps = get_le32(pb);
if(fps == -1)
av_set_pts_info(st, 32, 1, 1000);
else{
av_set_pts_info(st, 24, 1, fps);
st->duration = frames;
}
return 0;
}
static int vc1t_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
ByteIOContext *pb = s->pb;
int frame_size;
int keyframe = 0;
uint32_t pts;
if(url_feof(pb))
return AVERROR(EIO);
frame_size = get_le24(pb);
if(get_byte(pb) & 0x80)
keyframe = 1;
pts = get_le32(pb);
if(av_get_packet(pb, pkt, frame_size) < 0)
return AVERROR(EIO);
if(s->streams[0]->time_base.den == 1000)
pkt->pts = pts;
pkt->flags |= keyframe ? PKT_FLAG_KEY : 0;
pkt->pos -= 8;
return pkt->size;
}
int
voc_get_packet(AVFormatContext *s, AVPacket *pkt, AVStream *st, int max_size)
{
voc_dec_context_t *voc = s->priv_data;
AVCodecContext *dec = st->codec;
ByteIOContext *pb = s->pb;
voc_type_t type;
int size;
int sample_rate = 0;
int channels = 1;
while (!voc->remaining_size) {
type = get_byte(pb);
if (type == VOC_TYPE_EOF)
return AVERROR(EIO);
voc->remaining_size = get_le24(pb);
max_size -= 4;
switch (type) {
case VOC_TYPE_VOICE_DATA:
dec->sample_rate = 1000000 / (256 - get_byte(pb));
if (sample_rate)
dec->sample_rate = sample_rate;
dec->channels = channels;
dec->codec_id = codec_get_id(voc_codec_tags, get_byte(pb));
dec->bits_per_sample = av_get_bits_per_sample(dec->codec_id);
voc->remaining_size -= 2;
max_size -= 2;
channels = 1;
break;
case VOC_TYPE_VOICE_DATA_CONT:
break;
case VOC_TYPE_EXTENDED:
sample_rate = get_le16(pb);
get_byte(pb);
channels = get_byte(pb) + 1;
sample_rate = 256000000 / (channels * (65536 - sample_rate));
voc->remaining_size = 0;
max_size -= 4;
break;
case VOC_TYPE_NEW_VOICE_DATA:
dec->sample_rate = get_le32(pb);
dec->bits_per_sample = get_byte(pb);
dec->channels = get_byte(pb);
dec->codec_id = codec_get_id(voc_codec_tags, get_le16(pb));
url_fskip(pb, 4);
voc->remaining_size -= 12;
max_size -= 12;
break;
default:
url_fskip(pb, voc->remaining_size);
max_size -= voc->remaining_size;
voc->remaining_size = 0;
break;
}
}
dec->bit_rate = dec->sample_rate * dec->bits_per_sample;
if (max_size <= 0)
max_size = 2048;
size = FFMIN(voc->remaining_size, max_size);
voc->remaining_size -= size;
return av_get_packet(pb, pkt, size);
}
bool PackHeader::fillPackHeader(const upx_bytep buf, int blen)
{
int boff = find_le32(buf, blen, UPX_MAGIC_LE32);
if (boff < 0)
return false;
if (boff + 8 <= 0 || boff + 8 > blen)
throwCantUnpack("header corrupted 1");
const upx_bytep p = buf + boff;
version = p[4];
format = p[5];
method = p[6];
level = p[7];
filter_cto = 0;
const int size = getPackHeaderSize();
if (boff + size <= 0 || boff + size > blen)
throwCantUnpack("header corrupted 2");
//
// decode the new variable length header
//
int off_filter = 0;
if (format < 128)
{
u_adler = get_le32(p+8);
c_adler = get_le32(p+12);
if (format == UPX_F_DOS_COM || format == UPX_F_DOS_SYS)
{
u_len = get_le16(p+16);
c_len = get_le16(p+18);
u_file_size = u_len;
off_filter = 20;
}
else if (format == UPX_F_DOS_EXE || format == UPX_F_DOS_EXEH)
{
u_len = get_le24(p+16);
c_len = get_le24(p+19);
u_file_size = get_le24(p+22);
off_filter = 25;
}
else
{
u_len = get_le32(p+16);
c_len = get_le32(p+20);
u_file_size = get_le32(p+24);
off_filter = 28;
filter_cto = p[29];
n_mru = p[30] ? 1 + p[30] : 0;
}
}
else
{
u_len = get_be32(p+8);
c_len = get_be32(p+12);
u_adler = get_be32(p+16);
c_adler = get_be32(p+20);
u_file_size = get_be32(p+24);
off_filter = 28;
filter_cto = p[29];
n_mru = p[30] ? 1 + p[30] : 0;
}
if (version >= 10)
filter = p[off_filter];
else if ((level & 128) == 0)
filter = 0;
else
{
// convert old flags to new filter id
level &= 127;
if (format == UPX_F_DOS_COM || format == UPX_F_DOS_SYS)
filter = 0x06;
else
filter = 0x26;
}
level &= 15;
//
// now some checks
//
if (version == 0xff)
throwCantUnpack("cannot unpack UPX ;-)");
// check header_checksum
if (version > 9)
if (p[size - 1] != get_packheader_checksum(p, size - 1))
throwCantUnpack("header corrupted 3");
//
// success
//
this->buf_offset = boff;
return true;
}
static WEBP_INLINE uint32_t get_le32(const uint8_t* const data) {
return (uint32_t)get_le24(data) | (data[3] << 24);
}
int __acc_cdecl_qsort le24_compare(const void *e1, const void *e2)
{
const unsigned d1 = get_le24(e1);
const unsigned d2 = get_le24(e2);
return (d1 < d2) ? -1 : ((d1 > d2) ? 1 : 0);
}
static int wv_read_block_header(AVFormatContext *ctx, ByteIOContext *pb, int append)
{
WVContext *wc = ctx->priv_data;
uint32_t tag, ver;
int size;
int rate, bpp, chan;
uint32_t chmask;
wc->pos = url_ftell(pb);
if(!append){
tag = get_le32(pb);
if (tag != MKTAG('w', 'v', 'p', 'k'))
return -1;
size = get_le32(pb);
if(size < 24 || size > WV_BLOCK_LIMIT){
av_log(ctx, AV_LOG_ERROR, "Incorrect block size %i\n", size);
return -1;
}
wc->blksize = size;
ver = get_le16(pb);
if(ver < 0x402 || ver > 0x410){
av_log(ctx, AV_LOG_ERROR, "Unsupported version %03X\n", ver);
return -1;
}
get_byte(pb); // track no
get_byte(pb); // track sub index
wc->samples = get_le32(pb); // total samples in file
wc->soff = get_le32(pb); // offset in samples of current block
get_buffer(pb, wc->extra, WV_EXTRA_SIZE);
}else{
size = wc->blksize;
}
wc->flags = AV_RL32(wc->extra + 4);
//parse flags
bpp = ((wc->flags & 3) + 1) << 3;
chan = 1 + !(wc->flags & WV_MONO);
chmask = wc->flags & WV_MONO ? AV_CH_LAYOUT_MONO : AV_CH_LAYOUT_STEREO;
rate = wv_rates[(wc->flags >> 23) & 0xF];
wc->multichannel = !!((wc->flags & WV_SINGLE_BLOCK) != WV_SINGLE_BLOCK);
if(wc->multichannel){
chan = wc->chan;
chmask = wc->chmask;
}
if((rate == -1 || !chan) && !wc->block_parsed){
int64_t block_end = url_ftell(pb) + wc->blksize - 24;
if(url_is_streamed(pb)){
av_log(ctx, AV_LOG_ERROR, "Cannot determine additional parameters\n");
return -1;
}
while(url_ftell(pb) < block_end){
int id, size;
id = get_byte(pb);
size = (id & 0x80) ? get_le24(pb) : get_byte(pb);
size <<= 1;
if(id&0x40)
size--;
switch(id&0x3F){
case 0xD:
if(size <= 1){
av_log(ctx, AV_LOG_ERROR, "Insufficient channel information\n");
return -1;
}
chan = get_byte(pb);
switch(size - 2){
case 0:
chmask = get_byte(pb);
break;
case 1:
chmask = get_le16(pb);
break;
case 2:
chmask = get_le24(pb);
break;
case 3:
chmask = get_le32(pb);
break;
case 5:
url_fskip(pb, 1);
chan |= (get_byte(pb) & 0xF) << 8;
chmask = get_le24(pb);
break;
default:
av_log(ctx, AV_LOG_ERROR, "Invalid channel info size %d\n", size);
return -1;
}
break;
case 0x27:
rate = get_le24(pb);
break;
default:
url_fskip(pb, size);
}
if(id&0x40)
url_fskip(pb, 1);
}
if(rate == -1){
av_log(ctx, AV_LOG_ERROR, "Cannot determine custom sampling rate\n");
return -1;
}
url_fseek(pb, block_end - wc->blksize + 24, SEEK_SET);
}
if(!wc->bpp) wc->bpp = bpp;
if(!wc->chan) wc->chan = chan;
if(!wc->chmask) wc->chmask = chmask;
if(!wc->rate) wc->rate = rate;
if(wc->flags && bpp != wc->bpp){
av_log(ctx, AV_LOG_ERROR, "Bits per sample differ, this block: %i, header block: %i\n", bpp, wc->bpp);
return -1;
}
if(wc->flags && !wc->multichannel && chan != wc->chan){
av_log(ctx, AV_LOG_ERROR, "Channels differ, this block: %i, header block: %i\n", chan, wc->chan);
return -1;
}
if(wc->flags && rate != -1 && rate != wc->rate){
av_log(ctx, AV_LOG_ERROR, "Sampling rate differ, this block: %i, header block: %i\n", rate, wc->rate);
return -1;
}
wc->blksize = size - 24;
return 0;
}
static int mtv_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
MTVDemuxContext *mtv = s->priv_data;
ByteIOContext *pb = s->pb;
AVStream *st;
unsigned int audio_subsegments;
url_fskip(pb, 3);
mtv->file_size = get_le32(pb);
mtv->segments = get_le32(pb);
url_fskip(pb, 32);
mtv->audio_identifier = get_le24(pb);
mtv->audio_br = get_le16(pb);
mtv->img_colorfmt = get_le24(pb);
mtv->img_bpp = get_byte(pb);
mtv->img_width = get_le16(pb);
mtv->img_height = get_le16(pb);
mtv->img_segment_size = get_le16(pb);
url_fskip(pb, 4);
audio_subsegments = get_le16(pb);
mtv->full_segment_size =
audio_subsegments * (MTV_AUDIO_PADDING_SIZE + MTV_ASUBCHUNK_DATA_SIZE) +
mtv->img_segment_size;
mtv->video_fps = (mtv->audio_br / 4) / audio_subsegments;
// FIXME Add sanity check here
// all systems go! init decoders
// video - raw rgb565
st = av_new_stream(s, VIDEO_SID);
if(!st)
return AVERROR(ENOMEM);
av_set_pts_info(st, 64, 1, mtv->video_fps);
st->codec->codec_type = CODEC_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_RAWVIDEO;
st->codec->codec_tag = MKTAG('R', 'G', 'B', mtv->img_bpp);
st->codec->width = mtv->img_width;
st->codec->height = mtv->img_height;
st->codec->bits_per_coded_sample = mtv->img_bpp;
st->codec->sample_rate = mtv->video_fps;
// audio - mp3
st = av_new_stream(s, AUDIO_SID);
if(!st)
return AVERROR(ENOMEM);
av_set_pts_info(st, 64, 1, AUDIO_SAMPLING_RATE);
st->codec->codec_type = CODEC_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_MP3;
st->codec->bit_rate = mtv->audio_br;
st->need_parsing = AVSTREAM_PARSE_FULL;
// Jump over header
if(url_fseek(pb, MTV_HEADER_SIZE, SEEK_SET) != MTV_HEADER_SIZE)
return AVERROR(EIO);
return 0;
}
static int wv_read_block_header(AVFormatContext *ctx, ByteIOContext *pb)
{
WVContext *wc = ctx->priv_data;
uint32_t tag, ver;
int size;
int rate, bpp, chan;
wc->pos = url_ftell(pb);
tag = get_le32(pb);
if (tag != MKTAG('w', 'v', 'p', 'k'))
return -1;
size = get_le32(pb);
if(size < 24 || size > WV_BLOCK_LIMIT){
av_log(ctx, AV_LOG_ERROR, "Incorrect block size %i\n", size);
return -1;
}
wc->blksize = size;
ver = get_le16(pb);
if(ver < 0x402 || ver > 0x410){
av_log(ctx, AV_LOG_ERROR, "Unsupported version %03X\n", ver);
return -1;
}
get_byte(pb); // track no
get_byte(pb); // track sub index
wc->samples = get_le32(pb); // total samples in file
wc->soff = get_le32(pb); // offset in samples of current block
get_buffer(pb, wc->extra, WV_EXTRA_SIZE);
wc->flags = AV_RL32(wc->extra + 4);
//parse flags
bpp = ((wc->flags & 3) + 1) << 3;
chan = 1 + !(wc->flags & WV_MONO);
rate = wv_rates[(wc->flags >> 23) & 0xF];
if(rate == -1 && !wc->block_parsed){
int64_t block_end = url_ftell(pb) + wc->blksize - 24;
if(url_is_streamed(pb)){
av_log(ctx, AV_LOG_ERROR, "Cannot determine custom sampling rate\n");
return -1;
}
while(url_ftell(pb) < block_end){
int id, size;
id = get_byte(pb);
size = (id & 0x80) ? get_le24(pb) : get_byte(pb);
size <<= 1;
if(id&0x40)
size--;
if((id&0x3F) == 0x27){
rate = get_le24(pb);
break;
}else{
url_fskip(pb, size);
}
}
if(rate == -1){
av_log(ctx, AV_LOG_ERROR, "Cannot determine custom sampling rate\n");
return -1;
}
url_fseek(pb, block_end - wc->blksize + 24, SEEK_SET);
}
if(!wc->bpp) wc->bpp = bpp;
if(!wc->chan) wc->chan = chan;
if(!wc->rate) wc->rate = rate;
if(wc->flags && bpp != wc->bpp){
av_log(ctx, AV_LOG_ERROR, "Bits per sample differ, this block: %i, header block: %i\n", bpp, wc->bpp);
return -1;
}
if(wc->flags && chan != wc->chan){
av_log(ctx, AV_LOG_ERROR, "Channels differ, this block: %i, header block: %i\n", chan, wc->chan);
return -1;
}
if(wc->flags && rate != -1 && rate != wc->rate){
av_log(ctx, AV_LOG_ERROR, "Sampling rate differ, this block: %i, header block: %i\n", rate, wc->rate);
return -1;
}
wc->blksize = size - 24;
return 0;
}
