* Windows Television (WTV) demuxer
* Copyright (c) 2010-2011 Peter Ross <pross@xvid.org>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/intreadwrite.h"
#include "libavutil/intfloat_readwrite.h"
+#include "libavutil/dict.h"
#include "avformat.h"
#include "internal.h"
#include "riff.h"
AVIOContext *pb = wf->pb_filesystem;
int nread = 0;
- if (wf->error || url_ferror(pb))
+ if (wf->error || pb->error)
return -1;
- if (wf->position >= wf->length || url_feof(pb))
+ if (wf->position >= wf->length || pb->eof_reached)
return 0;
buf_size = FFMIN(buf_size, wf->length - wf->position);
int i = wf->position >> wf->sector_bits;
if (i >= wf->nb_sectors ||
(wf->sectors[i] != wf->sectors[i - 1] + (1 << (wf->sector_bits - WTV_SECTOR_BITS)) &&
- url_fseek(pb, (int64_t)wf->sectors[i] << WTV_SECTOR_BITS, SEEK_SET) < 0)) {
+ avio_seek(pb, (int64_t)wf->sectors[i] << WTV_SECTOR_BITS, SEEK_SET) < 0)) {
wf->error = 1;
break;
}
offset = wf->length;
wf->error = offset < 0 || offset >= wf->length ||
- url_fseek(pb, ((int64_t)wf->sectors[offset >> wf->sector_bits] << WTV_SECTOR_BITS)
+ avio_seek(pb, ((int64_t)wf->sectors[offset >> wf->sector_bits] << WTV_SECTOR_BITS)
+ (offset & ((1 << wf->sector_bits) - 1)), SEEK_SET) < 0;
wf->position = offset;
return offset;
WtvFile *wf;
uint8_t *buffer;
- if (url_fseek(s->pb, first_sector << WTV_SECTOR_BITS, SEEK_SET) < 0)
+ if (avio_seek(s->pb, first_sector << WTV_SECTOR_BITS, SEEK_SET) < 0)
return NULL;
wf = av_mallocz(sizeof(WtvFile));
}
wf->nb_sectors = 0;
for (i = 0; i < nb_sectors1; i++) {
- if (url_fseek(s->pb, (int64_t)sectors1[i] << WTV_SECTOR_BITS, SEEK_SET) < 0)
+ if (avio_seek(s->pb, (int64_t)sectors1[i] << WTV_SECTOR_BITS, SEEK_SET) < 0)
break;
wf->nb_sectors += read_ints(s->pb, wf->sectors + i * WTV_SECTOR_SIZE / 4, WTV_SECTOR_SIZE / 4);
}
/* seek to intial sector */
wf->position = 0;
- if (url_fseek(s->pb, (int64_t)wf->sectors[0] << WTV_SECTOR_BITS, SEEK_SET) < 0) {
+ if (avio_seek(s->pb, (int64_t)wf->sectors[0] << WTV_SECTOR_BITS, SEEK_SET) < 0) {
av_free(wf->sectors);
av_free(wf);
return NULL;
char description[1024];
unsigned int filesize;
AVStream *st;
- int64_t pos = url_ftell(pb);
+ int64_t pos = avio_tell(pb);
avio_get_str16le(pb, INT_MAX, mime, sizeof(mime));
if (strcmp(mime, "image/jpeg"))
st = av_new_stream(s, 0);
if (!st)
goto done;
- av_metadata_set2(&st->metadata, "title", description, 0);
+ av_dict_set(&st->metadata, "title", description, 0);
st->codec->codec_id = CODEC_ID_MJPEG;
st->codec->codec_type = AVMEDIA_TYPE_ATTACHMENT;
st->codec->extradata = av_mallocz(filesize);
st->codec->extradata_size = filesize;
avio_read(pb, st->codec->extradata, filesize);
done:
- url_fseek(pb, pos + length, SEEK_SET);
+ avio_seek(pb, pos + length, SEEK_SET);
}
static void get_tag(AVFormatContext *s, AVIOContext *pb, const char *key, int type, int length)
} else {
av_freep(&buf);
av_log(s, AV_LOG_WARNING, "unsupported metadata entry; key:%s, type:%d, length:0x%x\n", key, type, length);
- url_fskip(pb, length);
+ avio_skip(pb, length);
return;
}
- av_metadata_set2(&s->metadata, key, buf, 0);
+ av_dict_set(&s->metadata, key, buf, 0);
av_freep(&buf);
}
{
ff_asf_guid guid;
int length, type;
- while(!url_feof(pb)) {
+ while(!pb->eof_reached) {
char key[1024];
ff_get_guid(pb, &guid);
type = avio_rl32(pb);
WtvContext *wtv = s->priv_data;
AVIOContext *pb = wtv->pb;
- url_fskip(pb, 72); // picture aspect ratio is unreliable
+ avio_skip(pb, 72); // picture aspect ratio is unreliable
ff_get_bmp_header(pb, st);
return 72 + 40;
if (size < 32) {
av_log(s, AV_LOG_WARNING, "format buffer size underflow\n");
- url_fskip(pb, size);
+ avio_skip(pb, size);
return NULL;
}
- url_fskip(pb, size - 32);
+ avio_skip(pb, size - 32);
ff_get_guid(pb, &actual_subtype);
ff_get_guid(pb, &actual_formattype);
- url_fseek(pb, -size, SEEK_CUR);
+ avio_seek(pb, -size, SEEK_CUR);
st = parse_media_type(s, st, sid, mediatype, actual_subtype, actual_formattype, size - 32);
- url_fskip(pb, 32);
+ avio_skip(pb, 32);
return st;
} else if (!ff_guidcmp(mediatype, mediatype_audio)) {
st = new_stream(s, st, sid, AVMEDIA_TYPE_AUDIO);
if (!st)
return NULL;
if (!ff_guidcmp(formattype, format_waveformatex)) {
- ff_get_wav_header(pb, st->codec, size);
+ int ret = ff_get_wav_header(pb, st->codec, size);
+ if (ret < 0)
+ return NULL;
} else {
if (ff_guidcmp(formattype, format_none))
av_log(s, AV_LOG_WARNING, "unknown formattype:"PRI_GUID"\n", ARG_GUID(formattype));
- url_fskip(pb, size);
+ avio_skip(pb, size);
}
if (!memcmp(subtype + 4, (const uint8_t[]){MEDIASUBTYPE_BASE_GUID}, 12)) {
return NULL;
if (!ff_guidcmp(formattype, format_videoinfo2)) {
int consumed = parse_videoinfoheader2(s, st);
- url_fskip(pb, FFMAX(size - consumed, 0));
+ avio_skip(pb, FFMAX(size - consumed, 0));
} else if (!ff_guidcmp(formattype, format_mpeg2_video)) {
int consumed = parse_videoinfoheader2(s, st);
- url_fskip(pb, FFMAX(size - consumed, 0));
+ avio_skip(pb, FFMAX(size - consumed, 0));
} else {
if (ff_guidcmp(formattype, format_none))
av_log(s, AV_LOG_WARNING, "unknown formattype:"PRI_GUID"\n", ARG_GUID(formattype));
- url_fskip(pb, size);
+ avio_skip(pb, size);
}
if (!memcmp(subtype + 4, (const uint8_t[]){MEDIASUBTYPE_BASE_GUID}, 12)) {
return NULL;
if (ff_guidcmp(formattype, format_none))
av_log(s, AV_LOG_WARNING, "unknown formattype:"PRI_GUID"\n", ARG_GUID(formattype));
- url_fskip(pb, size);
+ avio_skip(pb, size);
st->codec->codec_id = CODEC_ID_DVB_SUBTITLE;
return st;
} else if (!ff_guidcmp(mediatype, mediatype_mstvcaption) &&
return NULL;
if (ff_guidcmp(formattype, format_none))
av_log(s, AV_LOG_WARNING, "unknown formattype:"PRI_GUID"\n", ARG_GUID(formattype));
- url_fskip(pb, size);
+ avio_skip(pb, size);
st->codec->codec_id = CODEC_ID_DVB_TELETEXT;
return st;
} else if (!ff_guidcmp(mediatype, mediatype_mpeg2_sections) &&
!ff_guidcmp(subtype, mediasubtype_mpeg2_sections)) {
if (ff_guidcmp(formattype, format_none))
av_log(s, AV_LOG_WARNING, "unknown formattype:"PRI_GUID"\n", ARG_GUID(formattype));
- url_fskip(pb, size);
+ avio_skip(pb, size);
return NULL;
}
av_log(s, AV_LOG_WARNING, "unknown media type, mediatype:"PRI_GUID
", subtype:"PRI_GUID", formattype:"PRI_GUID"\n",
ARG_GUID(mediatype), ARG_GUID(subtype), ARG_GUID(formattype));
- url_fskip(pb, size);
+ avio_skip(pb, size);
return NULL;
}
* Parse WTV chunks
* @param mode SEEK_TO_DATA or SEEK_TO_PTS
* @param seekts timestamp
- * @param[out] len Length of data chunk
+ * @param[out] len_ptr Length of data chunk
* @return stream index of data chunk, or <0 on error
*/
static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_ptr)
{
WtvContext *wtv = s->priv_data;
AVIOContext *pb = wtv->pb;
- while (!url_feof(pb)) {
+ while (!pb->eof_reached) {
ff_asf_guid g;
int len, sid, consumed;
if (len < 32)
break;
sid = avio_rl32(pb) & 0x7FFF;
- url_fskip(pb, 8);
+ avio_skip(pb, 8);
consumed = 32;
if (!ff_guidcmp(g, stream_guid)) {
if (ff_find_stream_index(s, sid) < 0) {
ff_asf_guid mediatype, subtype, formattype;
int size;
- url_fskip(pb, 28);
+ avio_skip(pb, 28);
ff_get_guid(pb, &mediatype);
ff_get_guid(pb, &subtype);
- url_fskip(pb, 12);
+ avio_skip(pb, 12);
ff_get_guid(pb, &formattype);
size = avio_rl32(pb);
parse_media_type(s, 0, sid, mediatype, subtype, formattype, size);
if (stream_index >= 0 && !((WtvStream*)s->streams[stream_index]->priv_data)->seen_data) {
ff_asf_guid mediatype, subtype, formattype;
int size;
- url_fskip(pb, 12);
+ avio_skip(pb, 12);
ff_get_guid(pb, &mediatype);
ff_get_guid(pb, &subtype);
- url_fskip(pb, 12);
+ avio_skip(pb, 12);
ff_get_guid(pb, &formattype);
size = avio_rl32(pb);
parse_media_type(s, s->streams[stream_index], sid, mediatype, subtype, formattype, size);
const uint8_t *pbuf = buf;
int buf_size;
- url_fskip(pb, 8);
+ avio_skip(pb, 8);
consumed += 8;
if (!ff_guidcmp(g, EVENTID_CtxADescriptorSpanningEvent) ||
!ff_guidcmp(g, EVENTID_CSDescriptorSpanningEvent)) {
- url_fskip(pb, 6);
+ avio_skip(pb, 6);
consumed += 6;
}
if (stream_index >= 0) {
AVStream *st = s->streams[stream_index];
int audio_type;
- url_fskip(pb, 8);
+ avio_skip(pb, 8);
audio_type = avio_r8(pb);
if (audio_type == 2)
st->disposition |= AV_DISPOSITION_HEARING_IMPAIRED;
} else if (!ff_guidcmp(g, EVENTID_DVBScramblingControlSpanningEvent)) {
int stream_index = ff_find_stream_index(s, sid);
if (stream_index >= 0) {
- url_fskip(pb, 12);
+ avio_skip(pb, 12);
if (avio_rl32(pb))
av_log(s, AV_LOG_WARNING, "DVB scrambled stream detected (st:%d), decoding will likely fail\n", stream_index);
consumed += 16;
if (stream_index >= 0) {
AVStream *st = s->streams[stream_index];
uint8_t language[4];
- url_fskip(pb, 12);
+ avio_skip(pb, 12);
avio_read(pb, language, 3);
if (language[0]) {
language[3] = 0;
- av_metadata_set2(&st->metadata, "language", language, 0);
+ av_dict_set(&st->metadata, "language", language, 0);
if (!strcmp(language, "nar") || !strcmp(language, "NAR"))
st->disposition |= AV_DISPOSITION_VISUAL_IMPAIRED;
}
} else if (!ff_guidcmp(g, timestamp_guid)) {
int stream_index = ff_find_stream_index(s, sid);
if (stream_index >= 0) {
- url_fskip(pb, 8);
+ avio_skip(pb, 8);
wtv->pts = avio_rl64(pb);
consumed += 16;
if (wtv->pts == -1)
wtv->epoch = wtv->pts;
if (mode == SEEK_TO_PTS && wtv->pts >= seekts) {
#define WTV_PAD8(x) (((x) + 7) & ~7)
- url_fskip(pb, WTV_PAD8(len) - consumed);
+ avio_skip(pb, WTV_PAD8(len) - consumed);
return 0;
}
}
} else
av_log(s, AV_LOG_WARNING, "unsupported chunk:"PRI_GUID"\n", ARG_GUID(g));
- url_fskip(pb, WTV_PAD8(len) - consumed);
+ avio_skip(pb, WTV_PAD8(len) - consumed);
}
return AVERROR_EOF;
}
wtv->last_valid_pts = AV_NOPTS_VALUE;
/* read root directory sector */
- url_fskip(s->pb, 0x30);
+ avio_skip(s->pb, 0x30);
root_size = avio_rl32(s->pb);
if (root_size > sizeof(root)) {
av_log(s, AV_LOG_ERROR, "root directory size exceeds sector size\n");
return AVERROR_INVALIDDATA;
}
- url_fskip(s->pb, 4);
+ avio_skip(s->pb, 4);
root_sector = avio_rl32(s->pb);
- url_fseek(s->pb, root_sector << WTV_SECTOR_BITS, SEEK_SET);
+ avio_seek(s->pb, root_sector << WTV_SECTOR_BITS, SEEK_SET);
root_size = avio_read(s->pb, root, root_size);
if (root_size < 0)
return AVERROR_INVALIDDATA;
ret = parse_chunks(s, SEEK_TO_DATA, 0, 0);
if (ret < 0)
return ret;
- url_fseek(wtv->pb, -32, SEEK_CUR);
+ avio_seek(wtv->pb, -32, SEEK_CUR);
- timeline_pos = url_ftell(s->pb); // save before opening another file
+ timeline_pos = avio_tell(s->pb); // save before opening another file
/* read metadata */
pb = wtvfile_open(s, root, root_size, table_0_entries_legacy_attrib_le16);
while(1) {
uint64_t timestamp = avio_rl64(pb);
uint64_t frame_nb = avio_rl64(pb);
- if (url_feof(pb))
+ if (pb->eof_reached)
break;
ff_add_index_entry(&wtv->index_entries, &wtv->nb_index_entries, &wtv->index_entries_allocated_size,
0, timestamp, frame_nb, 0, AVINDEX_KEYFRAME);
while (1) {
uint64_t frame_nb = avio_rl64(pb);
uint64_t position = avio_rl64(pb);
- if (url_feof(pb))
+ if (pb->eof_reached)
break;
for (i = wtv->nb_index_entries - 1; i >= 0; i--) {
AVIndexEntry *e = wtv->index_entries + i;
}
}
- url_fseek(s->pb, timeline_pos, SEEK_SET);
+ avio_seek(s->pb, timeline_pos, SEEK_SET);
return 0;
}
return ret;
pkt->stream_index = stream_index;
pkt->pts = wtv->pts;
- url_fskip(pb, WTV_PAD8(len) - len);
+ avio_skip(pb, WTV_PAD8(len) - len);
return 0;
}
int i;
if ((flags & AVSEEK_FLAG_FRAME) || (flags & AVSEEK_FLAG_BYTE))
- return AVERROR_NOTSUPP;
+ return AVERROR(ENOSYS);
/* timestamp adjustment is required because wtv->pts values are absolute,
* whereas AVIndexEntry->timestamp values are relative to epoch. */
i = ff_index_search_timestamp(wtv->index_entries, wtv->nb_index_entries, ts_relative, flags);
if (i < 0) {
if (wtv->last_valid_pts == AV_NOPTS_VALUE || ts < wtv->last_valid_pts)
- url_fseek(pb, 0, SEEK_SET);
+ avio_seek(pb, 0, SEEK_SET);
else if (st->duration != AV_NOPTS_VALUE && ts_relative > st->duration && wtv->nb_index_entries)
- url_fseek(pb, wtv->index_entries[wtv->nb_index_entries - 1].pos, SEEK_SET);
+ avio_seek(pb, wtv->index_entries[wtv->nb_index_entries - 1].pos, SEEK_SET);
if (parse_chunks(s, SEEK_TO_PTS, ts, 0) < 0)
return AVERROR(ERANGE);
return 0;
if (wtv->epoch != AV_NOPTS_VALUE)
wtv->pts += wtv->epoch;
wtv->last_valid_pts = wtv->pts;
- url_fseek(pb, wtv->index_entries[i].pos, SEEK_SET);
+ avio_seek(pb, wtv->index_entries[i].pos, SEEK_SET);
return 0;
}