/* raw input */
int ff_raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
AVStream *st;
enum CodecID id;
st = av_new_stream(s, 0);
if (!st)
return AVERROR(ENOMEM);
id = s->iformat->value;
if (id == CODEC_ID_RAWVIDEO) {
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
} else {
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
}
st->codec->codec_id = id;
switch(st->codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
st->codec->sample_rate = ap->sample_rate;
if(ap->channels) st->codec->channels = ap->channels;
else st->codec->channels = 1;
st->codec->bits_per_coded_sample = av_get_bits_per_sample(st->codec->codec_id);
assert(st->codec->bits_per_coded_sample > 0);
st->codec->block_align = st->codec->bits_per_coded_sample*st->codec->channels/8;
av_set_pts_info(st, 64, 1, st->codec->sample_rate);
break;
case AVMEDIA_TYPE_VIDEO:
if(ap->time_base.num)
av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
else
av_set_pts_info(st, 64, 1, 25);
st->r_frame_rate.num = st->time_base.den;
st->r_frame_rate.den = st->time_base.num;
st->codec->width = ap->width;
st->codec->height = ap->height;
st->codec->pix_fmt = ap->pix_fmt;
if(st->codec->codec_id == CODEC_ID_RAWVIDEO &&
st->codec->pix_fmt != PIX_FMT_NONE && !url_is_streamed(s->pb)) {
int frame_size = avpicture_get_size(st->codec->pix_fmt,
st->codec->width, st->codec->height);
if (frame_size < 0) {
av_log(s, AV_LOG_ERROR, "could not get frame size\n");
return -1;
}
if (url_fsize(s->pb) % frame_size)
av_log(s, AV_LOG_WARNING, "partial file\n");
st->nb_frames = url_fsize(s->pb) / frame_size;
st->duration = st->nb_frames;
}
if(st->codec->pix_fmt == PIX_FMT_NONE)
st->codec->pix_fmt= PIX_FMT_YUV420P;
break;
default:
return -1;
}
return 0;
}
static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
{
VideoData *s = s1->priv_data;
char filename[1024];
int i;
int size[3]={0}, ret[3]={0};
ByteIOContext f1[3], *f[3]= {&f1[0], &f1[1], &f1[2]};
AVCodecContext *codec= s1->streams[0]->codec;
if (!s->is_pipe) {
/* loop over input */
if (s1->loop_input && s->img_number > s->img_last) {
s->img_number = s->img_first;
}
if (av_get_frame_filename(filename, sizeof(filename),
s->path, s->img_number)<0 && s->img_number > 1)
return AVERROR_IO;
for(i=0; i<3; i++){
if (url_fopen(f[i], filename, URL_RDONLY) < 0)
return AVERROR_IO;
size[i]= url_fsize(f[i]);
if(codec->codec_id != CODEC_ID_RAWVIDEO)
break;
filename[ strlen(filename) - 1 ]= 'U' + i;
}
if(codec->codec_id == CODEC_ID_RAWVIDEO && !codec->width)
infer_size(&codec->width, &codec->height, size[0]);
} else {
f[0] = &s1->pb;
if (url_feof(f[0]))
return AVERROR_IO;
size[0]= 4096;
}
av_new_packet(pkt, size[0] + size[1] + size[2]);
pkt->stream_index = 0;
pkt->flags |= PKT_FLAG_KEY;
pkt->size= 0;
for(i=0; i<3; i++){
if(size[i]){
ret[i]= get_buffer(f[i], pkt->data + pkt->size, size[i]);
if (!s->is_pipe)
url_fclose(f[i]);
if(ret[i]>0)
pkt->size += ret[i];
}
}
if (ret[0] <= 0 || ret[1]<0 || ret[2]<0) {
av_free_packet(pkt);
return AVERROR_IO; /* signal EOF */
} else {
s->img_count++;
s->img_number++;
return 0;
}
}
static int read_header(AVFormatContext *avctx,
AVFormatParameters *ap)
{
TtyDemuxContext *s = avctx->priv_data;
AVStream *st = av_new_stream(avctx, 0);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_tag = 0;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_ANSI;
if (ap->width) st->codec->width = ap->width;
if (ap->height) st->codec->height = ap->height;
if (!ap->time_base.num) {
av_set_pts_info(st, 60, 1, 25);
} else {
av_set_pts_info(st, 60, ap->time_base.num, ap->time_base.den);
}
/* simulate tty display speed */
s->chars_per_frame = FFMAX(av_q2d(st->time_base) * (ap->sample_rate ? ap->sample_rate : LINE_RATE), 1);
if (!url_is_streamed(avctx->pb)) {
s->fsize = url_fsize(avctx->pb);
st->duration = (s->fsize + s->chars_per_frame - 1) / s->chars_per_frame;
if (ff_sauce_read(avctx, &s->fsize, 0, 0) < 0)
efi_read(avctx, s->fsize - 51);
url_fseek(avctx->pb, 0, SEEK_SET);
}
return 0;
}
static int mp3_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
AVStream *st;
uint8_t buf[ID3v1_TAG_SIZE];
int len, ret, filesize;
offset_t off;
st = av_new_stream(s, 0);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = CODEC_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_MP3;
st->need_parsing = AVSTREAM_PARSE_FULL;
st->start_time = 0;
/* try to get the TAG */
if (!url_is_streamed(s->pb)) {
/* XXX: change that */
filesize = url_fsize(s->pb);
if (filesize > 128) {
url_fseek(s->pb, filesize - 128, SEEK_SET);
ret = get_buffer(s->pb, buf, ID3v1_TAG_SIZE);
if (ret == ID3v1_TAG_SIZE) {
id3v1_parse_tag(s, buf);
}
url_fseek(s->pb, 0, SEEK_SET);
}
}
/* if ID3v2 header found, skip it */
ret = get_buffer(s->pb, buf, ID3v2_HEADER_SIZE);
if (ret != ID3v2_HEADER_SIZE)
return -1;
if (id3v2_match(buf)) {
/* parse ID3v2 header */
len = ((buf[6] & 0x7f) << 21) |
((buf[7] & 0x7f) << 14) |
((buf[8] & 0x7f) << 7) |
(buf[9] & 0x7f);
id3v2_parse(s, len, buf[3], buf[5]);
} else {
url_fseek(s->pb, 0, SEEK_SET);
}
off = url_ftell(s->pb);
mp3_parse_vbr_tags(s, st, off);
url_fseek(s->pb, off, SEEK_SET);
/* the parameters will be extracted from the compressed bitstream */
return 0;
}
/* XXX: use llseek */
static int64_t list_seek(URLContext *h, int64_t pos, int whence)
{
struct list_mgt *mgt = h->priv_data;
struct list_item *item,*item1;
if (whence == AVSEEK_BUFFERED_TIME)
{
int64_t buffed_time=0;
if(mgt->current_item && mgt->current_item->duration>0){
//av_log(NULL, AV_LOG_INFO, "list_seek uui=%ld,size=%lld\n",mgt->cur_uio,url_fsize(mgt->cur_uio));
if(mgt->cur_uio && url_fsize(mgt->cur_uio)>0)
{
//av_log(NULL, AV_LOG_INFO, "list_seek start_time=%ld,pos=%lld\n",mgt->current_item->start_time,url_buffed_pos(mgt->cur_uio));
buffed_time=mgt->current_item->start_time+url_buffed_pos(mgt->cur_uio)*mgt->current_item->duration/url_fsize(mgt->cur_uio);
}
else{
buffed_time=mgt->current_item->start_time;
}
}
av_log(NULL, AV_LOG_INFO, "list current buffed_time=%lld\n",buffed_time);
return buffed_time;
}
av_log(NULL, AV_LOG_INFO, "list_seek pos=%lld,whence=%x\n",pos,whence);
if (whence == AVSEEK_SIZE)
return mgt->file_size;
if (whence == AVSEEK_FULLTIME)
{
if(mgt->have_list_end)
return mgt->full_time;
else
return -1;
}
if(whence == AVSEEK_TO_TIME && pos>=0 && pos<mgt->full_time)
{
av_log(NULL, AV_LOG_INFO, "list_seek to Time =%lld,whence=%x\n",pos,whence);
for(item=mgt->item_list;item;item=item->next)
{
if(item->start_time<=pos && pos <item->start_time+item->duration)
{
if(mgt->cur_uio)
url_fclose(mgt->cur_uio);
mgt->cur_uio=NULL;
mgt->current_item=item;
av_log(NULL, AV_LOG_INFO, "list_seek to item->file =%s\n",item->file);
return item->start_time;/*pos=0;*/
}
}
}
av_log(NULL, AV_LOG_INFO, "list_seek failed\n");
return -1;
static int r3d_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
R3DContext *r3d = s->priv_data;
Atom atom;
int ret;
if (read_atom(s, &atom) < 0) {
av_log(s, AV_LOG_ERROR, "error reading atom\n");
return -1;
}
if (atom.tag == MKTAG('R','E','D','1')) {
if ((ret = r3d_read_red1(s)) < 0) {
av_log(s, AV_LOG_ERROR, "error parsing 'red1' atom\n");
return ret;
}
} else {
av_log(s, AV_LOG_ERROR, "could not find 'red1' atom\n");
return -1;
}
s->data_offset = url_ftell(s->pb);
dprintf(s, "data offset %#llx\n", s->data_offset);
if (url_is_streamed(s->pb))
return 0;
// find REOB/REOF/REOS to load index
url_fseek(s->pb, url_fsize(s->pb)-48-8, SEEK_SET);
if (read_atom(s, &atom) < 0)
av_log(s, AV_LOG_ERROR, "error reading end atom\n");
if (atom.tag != MKTAG('R','E','O','B') &&
atom.tag != MKTAG('R','E','O','F') &&
atom.tag != MKTAG('R','E','O','S'))
goto out;
r3d_read_reos(s);
if (r3d->rdvo_offset) {
url_fseek(s->pb, r3d->rdvo_offset, SEEK_SET);
if (read_atom(s, &atom) < 0)
av_log(s, AV_LOG_ERROR, "error reading 'rdvo' atom\n");
if (atom.tag == MKTAG('R','D','V','O')) {
if (r3d_read_rdvo(s, &atom) < 0)
av_log(s, AV_LOG_ERROR, "error parsing 'rdvo' atom\n");
}
}
out:
url_fseek(s->pb, s->data_offset, SEEK_SET);
return 0;
}
static int gxf_write_material_data_section(AVFormatContext *s)
{
GXFContext *gxf = s->priv_data;
AVIOContext *pb = s->pb;
int64_t pos;
int len;
const char *filename = strrchr(s->filename, '/');
pos = url_ftell(pb);
avio_wb16(pb, 0); /* size */
/* name */
if (filename)
filename++;
else
filename = s->filename;
len = strlen(filename);
avio_w8(pb, MAT_NAME);
avio_w8(pb, strlen(SERVER_PATH) + len + 1);
avio_write(pb, SERVER_PATH, sizeof(SERVER_PATH) - 1);
avio_write(pb, filename, len);
avio_w8(pb, 0);
/* first field */
avio_w8(pb, MAT_FIRST_FIELD);
avio_w8(pb, 4);
avio_wb32(pb, 0);
/* last field */
avio_w8(pb, MAT_LAST_FIELD);
avio_w8(pb, 4);
avio_wb32(pb, gxf->nb_fields);
/* reserved */
avio_w8(pb, MAT_MARK_IN);
avio_w8(pb, 4);
avio_wb32(pb, 0);
avio_w8(pb, MAT_MARK_OUT);
avio_w8(pb, 4);
avio_wb32(pb, gxf->nb_fields);
/* estimated size */
avio_w8(pb, MAT_SIZE);
avio_w8(pb, 4);
avio_wb32(pb, url_fsize(pb) / 1024);
return updateSize(pb, pos);
}
static int yuv_read(ByteIOContext *f,
int (*alloc_cb)(void *opaque, AVImageInfo *info), void *opaque)
{
ByteIOContext pb1, *pb = &pb1;
int img_size, ret;
char fname[1024], *p;
int size;
URLContext *h;
AVImageInfo info1, *info = &info1;
img_size = url_fsize(f);
/* XXX: hack hack */
h = url_fileno(f);
url_get_filename(h, fname, sizeof(fname));
if (infer_size(&info->width, &info->height, img_size) < 0) {
return AVERROR_IO;
}
info->pix_fmt = PIX_FMT_YUV420P;
ret = alloc_cb(opaque, info);
if (ret)
return ret;
size = info->width * info->height;
p = strrchr(fname, '.');
if (!p || p[1] != 'Y')
return AVERROR_IO;
get_buffer(f, info->pict.data[0], size);
p[1] = 'U';
if (url_fopen(pb, fname, URL_RDONLY) < 0)
return AVERROR_IO;
get_buffer(pb, info->pict.data[1], size / 4);
url_fclose(pb);
p[1] = 'V';
if (url_fopen(pb, fname, URL_RDONLY) < 0)
return AVERROR_IO;
get_buffer(pb, info->pict.data[2], size / 4);
url_fclose(pb);
return 0;
}
void ff_ape_parse_tag(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
int file_size = url_fsize(pb);
uint32_t val, fields, tag_bytes;
uint8_t buf[8];
int i;
if (file_size < APE_TAG_FOOTER_BYTES)
return;
url_fseek(pb, file_size - APE_TAG_FOOTER_BYTES, SEEK_SET);
avio_read(pb, buf, 8); /* APETAGEX */
if (strncmp(buf, "APETAGEX", 8)) {
return;
}
val = avio_rl32(pb); /* APE tag version */
if (val > APE_TAG_VERSION) {
av_log(s, AV_LOG_ERROR, "Unsupported tag version. (>=%d)\n", APE_TAG_VERSION);
return;
}
tag_bytes = avio_rl32(pb); /* tag size */
if (tag_bytes - APE_TAG_FOOTER_BYTES > (1024 * 1024 * 16)) {
av_log(s, AV_LOG_ERROR, "Tag size is way too big\n");
return;
}
fields = avio_rl32(pb); /* number of fields */
if (fields > 65536) {
av_log(s, AV_LOG_ERROR, "Too many tag fields (%d)\n", fields);
return;
}
val = avio_rl32(pb); /* flags */
if (val & APE_TAG_FLAG_IS_HEADER) {
av_log(s, AV_LOG_ERROR, "APE Tag is a header\n");
return;
}
url_fseek(pb, file_size - tag_bytes, SEEK_SET);
for (i=0; i<fields; i++)
if (ape_tag_read_field(s) < 0) break;
}
static int gxf_write_material_data_section(ByteIOContext *pb, GXFContext *ctx)
{
int64_t pos;
const char *filename = strrchr(ctx->fc->filename, '/');
pos = url_ftell(pb);
put_be16(pb, 0); /* size */
/* name */
if (filename)
filename++;
else
filename = ctx->fc->filename;
put_byte(pb, MAT_NAME);
put_byte(pb, strlen(SERVER_PATH) + strlen(filename) + 1);
put_tag(pb, SERVER_PATH);
put_tag(pb, filename);
put_byte(pb, 0);
/* first field */
put_byte(pb, MAT_FIRST_FIELD);
put_byte(pb, 4);
put_be32(pb, 0);
/* last field */
put_byte(pb, MAT_LAST_FIELD);
put_byte(pb, 4);
put_be32(pb, ctx->nb_frames);
/* reserved */
put_byte(pb, MAT_MARK_IN);
put_byte(pb, 4);
put_be32(pb, 0);
put_byte(pb, MAT_MARK_OUT);
put_byte(pb, 4);
put_be32(pb, ctx->nb_frames);
/* estimated size */
put_byte(pb, MAT_SIZE);
put_byte(pb, 4);
put_be32(pb, url_fsize(pb) / 1024);
return updateSize(pb, pos);
}
void ff_id3v1_read(AVFormatContext *s)
{
int ret, filesize;
uint8_t buf[ID3v1_TAG_SIZE];
if (!url_is_streamed(s->pb)) {
/* XXX: change that */
filesize = url_fsize(s->pb);
if (filesize > 128) {
avio_seek(s->pb, filesize - 128, SEEK_SET);
ret = avio_read(s->pb, buf, ID3v1_TAG_SIZE);
if (ret == ID3v1_TAG_SIZE) {
parse_tag(s, buf);
}
avio_seek(s->pb, 0, SEEK_SET);
}
}
}
static int read_header(AVFormatContext *s, AVFormatParameters *ap)
{
AVStream *vst;
int ret;
vst = av_new_stream(s, 0);
if (!vst)
return AVERROR(ENOMEM);
vst->codec->codec_type = CODEC_TYPE_VIDEO;
vst->codec->codec_id = CODEC_ID_CDGRAPHICS;
/// 75 sectors/sec * 4 packets/sector = 300 packets/sec
av_set_pts_info(vst, 32, 1, 300);
ret = url_fsize(s->pb);
if (ret < 0)
return ret;
vst->duration = (ret * vst->time_base.den) / (CDG_PACKET_SIZE * 300);
return 0;
}
static int read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
FilmstripDemuxContext *film = s->priv_data;
ByteIOContext *pb = s->pb;
AVStream *st;
if (url_is_streamed(s->pb))
return AVERROR(EIO);
url_fseek(pb, url_fsize(pb) - 36, SEEK_SET);
if (get_be32(pb) != RAND_TAG) {
av_log(s, AV_LOG_ERROR, "magic number not found");
return AVERROR_INVALIDDATA;
}
st = av_new_stream(s, 0);
if (!st)
return AVERROR(ENOMEM);
st->nb_frames = get_be32(pb);
if (get_be16(pb) != 0) {
av_log_ask_for_sample(s, "unsupported packing method\n");
return AVERROR_INVALIDDATA;
}
url_fskip(pb, 2);
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_RAWVIDEO;
st->codec->pix_fmt = PIX_FMT_RGBA;
st->codec->codec_tag = 0; /* no fourcc */
st->codec->width = get_be16(pb);
st->codec->height = get_be16(pb);
film->leading = get_be16(pb);
av_set_pts_info(st, 64, 1, get_be16(pb));
url_fseek(pb, 0, SEEK_SET);
return 0;
}
int sj_index_load(char *filename, SJ_IndexContext *sj_ic)
{
ByteIOContext pb;
register_protocol(&file_protocol);
if (url_fopen(&pb, filename, URL_RDONLY) < 0) {
// file could not be open
return -1;
}
sj_ic->size = url_fsize(&pb) - HEADER_SIZE;
sj_ic->index_num = (sj_ic->size / INDEX_SIZE);
sj_ic->indexes = av_malloc(sj_ic->index_num * sizeof(Index));
int64_t magic = get_le64(&pb);
if (magic != 0x534A2D494E444558LL) {
// not an index file
url_fclose(&pb);
return -2;
}
sj_ic->version = get_byte(&pb);
sj_ic->start_pts = get_le64(&pb);
sj_ic->start_dts = get_le64(&pb);
sj_ic->start_timecode.frames = get_byte(&pb);
sj_ic->start_timecode.seconds = get_byte(&pb);
sj_ic->start_timecode.minutes = get_byte(&pb);
sj_ic->start_timecode.hours = get_byte(&pb);
if (!sj_ic->index_num) {
// empty index
url_fclose(&pb);
return -4;
}
for(int i = 0; i < sj_ic->index_num; i++) {
read_index(&sj_ic->indexes[i], &pb);
}
url_fclose(&pb);
return 0;
}
static int yop_read_seek(AVFormatContext *s, int stream_index,
int64_t timestamp, int flags)
{
YopDecContext *yop = s->priv_data;
int64_t frame_pos, pos_min, pos_max;
int frame_count;
av_free_packet(&yop->video_packet);
if (!stream_index)
return -1;
pos_min = s->data_offset;
pos_max = url_fsize(s->pb) - yop->frame_size;
frame_count = (pos_max - pos_min) / yop->frame_size;
timestamp = FFMAX(0, FFMIN(frame_count, timestamp));
frame_pos = timestamp * yop->frame_size + pos_min;
yop->odd_frame = timestamp & 1;
avio_seek(s->pb, frame_pos, SEEK_SET);
return 0;
}
static int read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
ByteIOContext *pb = s->pb;
CaffContext *caf = s->priv_data;
AVStream *st;
uint32_t tag = 0;
int found_data, ret;
int64_t size;
url_fskip(pb, 8); /* magic, version, file flags */
/* audio description chunk */
if (get_be32(pb) != MKBETAG('d','e','s','c')) {
av_log(s, AV_LOG_ERROR, "desc chunk not present\n");
return AVERROR_INVALIDDATA;
}
size = get_be64(pb);
if (size != 32)
return AVERROR_INVALIDDATA;
ret = read_desc_chunk(s);
if (ret)
return ret;
st = s->streams[0];
/* parse each chunk */
found_data = 0;
while (!url_feof(pb)) {
/* stop at data chunk if seeking is not supported or
data chunk size is unknown */
if (found_data && (caf->data_size < 0 || url_is_streamed(pb)))
break;
tag = get_be32(pb);
size = get_be64(pb);
if (url_feof(pb))
break;
switch (tag) {
case MKBETAG('d','a','t','a'):
url_fskip(pb, 4); /* edit count */
caf->data_start = url_ftell(pb);
caf->data_size = size < 0 ? -1 : size - 4;
if (caf->data_size > 0 && !url_is_streamed(pb))
url_fskip(pb, caf->data_size);
found_data = 1;
break;
/* magic cookie chunk */
case MKBETAG('k','u','k','i'):
if (read_kuki_chunk(s, size))
return AVERROR_INVALIDDATA;
break;
/* packet table chunk */
case MKBETAG('p','a','k','t'):
if (read_pakt_chunk(s, size))
return AVERROR_INVALIDDATA;
break;
case MKBETAG('i','n','f','o'):
read_info_chunk(s, size);
break;
default:
#define _(x) ((x) >= ' ' ? (x) : ' ')
av_log(s, AV_LOG_WARNING, "skipping CAF chunk: %08X (%c%c%c%c)\n",
tag, _(tag>>24), _((tag>>16)&0xFF), _((tag>>8)&0xFF), _(tag&0xFF));
#undef _
case MKBETAG('f','r','e','e'):
if (size < 0)
return AVERROR_INVALIDDATA;
url_fskip(pb, size);
break;
}
}
if (!found_data)
return AVERROR_INVALIDDATA;
if (caf->bytes_per_packet > 0 && caf->frames_per_packet > 0) {
if (caf->data_size > 0)
st->nb_frames = (caf->data_size / caf->bytes_per_packet) * caf->frames_per_packet;
} else if (st->nb_index_entries) {
st->codec->bit_rate = st->codec->sample_rate * caf->data_size * 8 /
st->duration;
} else {
av_log(s, AV_LOG_ERROR, "Missing packet table. It is required when "
"block size or frame size are variable.\n");
return AVERROR_INVALIDDATA;
}
s->file_size = url_fsize(pb);
s->file_size = FFMAX(0, s->file_size);
av_set_pts_info(st, 64, 1, st->codec->sample_rate);
st->start_time = 0;
/* position the stream at the start of data */
if (caf->data_size >= 0)
url_fseek(pb, caf->data_start, SEEK_SET);
return 0;
}
/* XXX: use llseek */
static int64_t list_seek(URLContext *h, int64_t pos, int whence)
{
struct list_mgt *mgt = h->priv_data;
URLContext *subh;
struct list_mgt *submgt;
struct list_item *item,*item1;
struct list_item *cur_item;
int fulltime;
if (!h->support_time_seek) {
if(!mgt->have_list_end && mgt->have_sub_list && mgt->cur_uio){
if(mgt->cur_uio->support_time_seek){
h->support_time_seek = 1;
av_log(NULL, AV_LOG_INFO, "sub list support seek\n");
}
}
}
if (whence == AVSEEK_BUFFERED_TIME)
{
int64_t buffed_time=0;
if(mgt->current_item ){
//av_log(NULL, AV_LOG_INFO, "list_seek uui=%ld,size=%lld\n",mgt->cur_uio,url_fsize(mgt->cur_uio));
if(mgt->cur_uio && url_fsize(mgt->cur_uio)>0 && mgt->current_item->duration>=0){
//av_log(NULL, AV_LOG_INFO, "list_seek start_time=%ld,pos=%lld\n",mgt->current_item->start_time,url_buffed_pos(mgt->cur_uio));
buffed_time=mgt->current_item->start_time+url_buffed_pos(mgt->cur_uio)*mgt->current_item->duration/url_fsize(mgt->cur_uio);
}
else{
buffed_time=mgt->current_item->start_time;
if(mgt->current_item && (mgt->current_item->flags & ENDLIST_FLAG))
buffed_time=mgt->full_time;/*read to end list, show full bufferd*/
}
}
//av_log(NULL, AV_LOG_INFO, "list current buffed_time=%lld\n",buffed_time);
return buffed_time;
}
if (whence == AVSEEK_SIZE)
return mgt->file_size;
av_log(NULL, AV_LOG_INFO, "list_seek pos=%lld,whence=%x\n",pos,whence);
if (whence == AVSEEK_FULLTIME)
{
if(mgt->have_list_end){
av_log(NULL, AV_LOG_INFO, "return mgt->full_timet=%d\n",mgt->full_time);
return mgt->full_time;
}else if(mgt->have_sub_list && mgt->cur_uio){
subh = mgt->cur_uio->opaque;
av_log(NULL, AV_LOG_INFO, "seek sub file for fulltime\n");
return list_seek(subh,pos, whence);
}else
return -1;
}
if(whence == AVSEEK_TO_TIME)
{
av_log(NULL, AV_LOG_INFO, "list_seek to Time =%lld,whence=%x,have sublist:%d\n",pos,whence,mgt->have_sub_list);
if (!mgt->have_sub_list) {
if(pos>=0 && pos<mgt->full_time) {
for(item=mgt->item_list;item;item=item->next)
{
if(item->start_time<=pos && pos <item->start_time+item->duration)
{
if(mgt->cur_uio){
url_fclose(mgt->cur_uio);
}
mgt->cur_uio=NULL;
mgt->current_item=item;
av_log(NULL, AV_LOG_INFO, "list_seek to item->file =%s\n",item->file);
return item->start_time;/*pos=0;*/
}
}
}
} else {
if(!mgt->cur_uio){
av_log(NULL, AV_LOG_ERROR, "byteio already close, seek failed!\n");
return -1;
}
subh = mgt->cur_uio->opaque;
submgt = subh->priv_data;
if(subh && submgt) {
av_log(NULL, AV_LOG_INFO, "have sub list, go2 low level, location=%s\n",submgt->location);
return list_seek(subh, pos, whence);
}
}
}
av_log(NULL, AV_LOG_INFO, "list_seek failed\n");
return -1;
}
int
voc_get_packet(AVFormatContext *s, AVPacket *pkt, AVStream *st, int max_size)
{
VocDecContext *voc = s->priv_data;
AVCodecContext *dec = st->codec;
ByteIOContext *pb = s->pb;
VocType 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);
if (!voc->remaining_size) {
if (url_is_streamed(s->pb))
return AVERROR(EIO);
voc->remaining_size = url_fsize(pb) - url_ftell(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 = ff_codec_get_id(ff_voc_codec_tags, get_byte(pb));
dec->bits_per_coded_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_coded_sample = get_byte(pb);
dec->channels = get_byte(pb);
dec->codec_id = ff_codec_get_id(ff_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_coded_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);
}
static void ape_parse_tag(AVFormatContext *s)
{
ByteIOContext *pb = &s->pb;
int file_size = url_fsize(pb);
uint32_t val, fields, tag_bytes;
uint8_t buf[8];
int i;
if (file_size < APE_TAG_FOOTER_BYTES)
return;
url_fseek(pb, file_size - APE_TAG_FOOTER_BYTES, SEEK_SET);
get_buffer(pb, buf, 8); /* APETAGEX */
if (strncmp(buf, "APETAGEX", 8)) {
av_log(NULL, AV_LOG_ERROR, "Invalid APE Tags\n");
return;
}
val = get_le32(pb); /* APE tag version */
if (val > APE_TAG_VERSION) {
av_log(NULL, AV_LOG_ERROR, "Unsupported tag version. (>=%d)\n", APE_TAG_VERSION);
return;
}
tag_bytes = get_le32(pb); /* tag size */
if (tag_bytes - APE_TAG_FOOTER_BYTES > (1024 * 1024 * 16)) {
av_log(NULL, AV_LOG_ERROR, "Tag size is way too big\n");
return;
}
fields = get_le32(pb); /* number of fields */
if (fields > 65536) {
av_log(NULL, AV_LOG_ERROR, "Too many tag fields (%d)\n", fields);
return;
}
val = get_le32(pb); /* flags */
if (val & APE_TAG_FLAG_IS_HEADER) {
av_log(NULL, AV_LOG_ERROR, "APE Tag is a header\n");
return;
}
if (val & APE_TAG_FLAG_CONTAINS_HEADER)
tag_bytes += 2*APE_TAG_FOOTER_BYTES;
url_fseek(pb, file_size - tag_bytes, SEEK_SET);
for (i=0; i<fields; i++)
ape_tag_read_field(s);
#if ENABLE_DEBUG
av_log(NULL, AV_LOG_DEBUG, "\nAPE Tags:\n\n");
av_log(NULL, AV_LOG_DEBUG, "title = %s\n", s->title);
av_log(NULL, AV_LOG_DEBUG, "author = %s\n", s->author);
av_log(NULL, AV_LOG_DEBUG, "copyright = %s\n", s->copyright);
av_log(NULL, AV_LOG_DEBUG, "comment = %s\n", s->comment);
av_log(NULL, AV_LOG_DEBUG, "album = %s\n", s->album);
av_log(NULL, AV_LOG_DEBUG, "year = %d\n", s->year);
av_log(NULL, AV_LOG_DEBUG, "track = %d\n", s->track);
av_log(NULL, AV_LOG_DEBUG, "genre = %s\n", s->genre);
#endif
}
