* ASF compatible demuxer
* Copyright (c) 2000, 2001 Fabrice Bellard
*
- * 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
*/
//#define DEBUG
+#include "libavutil/bswap.h"
#include "libavutil/common.h"
#include "libavutil/avstring.h"
+#include "libavutil/dict.h"
+#include "libavutil/mathematics.h"
#include "libavcodec/mpegaudio.h"
#include "avformat.h"
+#include "internal.h"
+#include "avio_internal.h"
#include "riff.h"
#include "asf.h"
#include "asfcrypt.h"
#include "avlanguage.h"
-void ff_mms_set_stream_selection(URLContext *h, AVFormatContext *format);
-
typedef struct {
int asfid2avid[128]; ///< conversion table from asf ID 2 AVStream ID
ASFStream streams[128]; ///< it's max number and it's not that big
0x90, 0x08, 0x00, 0x33, 0xb1, 0xe5, 0xcf, 0x11, 0x89, 0xf4, 0x00, 0xa0, 0xc9, 0x03, 0x49, 0xcb
};
+#ifdef DEBUG
static const ff_asf_guid stream_bitrate_guid = { /* (http://get.to/sdp) */
0xce, 0x75, 0xf8, 0x7b, 0x8d, 0x46, 0xd1, 0x11, 0x8d, 0x82, 0x00, 0x60, 0x97, 0xc9, 0xa2, 0xb2
};
-/**********************************/
-/* decoding */
-#ifdef DEBUG
#define PRINT_IF_GUID(g,cmp) \
if (!ff_guidcmp(g, &cmp)) \
av_dlog(NULL, "(GUID: %s) ", #cmp)
#define print_guid(g)
#endif
-void ff_get_guid(ByteIOContext *s, ff_asf_guid *g)
+void ff_get_guid(AVIOContext *s, ff_asf_guid *g)
{
assert(sizeof(*g) == 16);
- get_buffer(s, *g, sizeof(*g));
+ avio_read(s, *g, sizeof(*g));
}
static int asf_probe(AVProbeData *pd)
return 0;
}
-static int get_value(ByteIOContext *pb, int type){
+static int get_value(AVIOContext *pb, int type){
switch(type){
- case 2: return get_le32(pb);
- case 3: return get_le32(pb);
- case 4: return get_le64(pb);
- case 5: return get_le16(pb);
+ case 2: return avio_rl32(pb);
+ case 3: return avio_rl32(pb);
+ case 4: return avio_rl64(pb);
+ case 5: return avio_rl16(pb);
default:return INT_MIN;
}
}
static void get_tag(AVFormatContext *s, const char *key, int type, int len)
{
char *value;
- int64_t off = url_ftell(s->pb);
+ int64_t off = avio_tell(s->pb);
if ((unsigned)len >= (UINT_MAX - 1)/2)
return;
av_log(s, AV_LOG_DEBUG, "Unsupported value type %d in tag %s.\n", type, key);
goto finish;
}
- av_metadata_set2(&s->metadata, key, value, 0);
+ if (*value)
+ av_dict_set(&s->metadata, key, value, 0);
finish:
av_freep(&value);
- url_fseek(s->pb, off + len, SEEK_SET);
+ avio_seek(s->pb, off + len, SEEK_SET);
}
static int asf_read_file_properties(AVFormatContext *s, int64_t size)
{
ASFContext *asf = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
ff_get_guid(pb, &asf->hdr.guid);
- asf->hdr.file_size = get_le64(pb);
- asf->hdr.create_time = get_le64(pb);
- get_le64(pb); /* number of packets */
- asf->hdr.play_time = get_le64(pb);
- asf->hdr.send_time = get_le64(pb);
- asf->hdr.preroll = get_le32(pb);
- asf->hdr.ignore = get_le32(pb);
- asf->hdr.flags = get_le32(pb);
- asf->hdr.min_pktsize = get_le32(pb);
- asf->hdr.max_pktsize = get_le32(pb);
- asf->hdr.max_bitrate = get_le32(pb);
+ asf->hdr.file_size = avio_rl64(pb);
+ asf->hdr.create_time = avio_rl64(pb);
+ avio_rl64(pb); /* number of packets */
+ asf->hdr.play_time = avio_rl64(pb);
+ asf->hdr.send_time = avio_rl64(pb);
+ asf->hdr.preroll = avio_rl32(pb);
+ asf->hdr.ignore = avio_rl32(pb);
+ asf->hdr.flags = avio_rl32(pb);
+ asf->hdr.min_pktsize = avio_rl32(pb);
+ asf->hdr.max_pktsize = avio_rl32(pb);
+ asf->hdr.max_bitrate = avio_rl32(pb);
s->packet_size = asf->hdr.max_pktsize;
return 0;
static int asf_read_stream_properties(AVFormatContext *s, int64_t size)
{
ASFContext *asf = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
AVStream *st;
ASFStream *asf_st;
ff_asf_guid g;
enum AVMediaType type;
int type_specific_size, sizeX;
- uint64_t total_size;
unsigned int tag1;
int64_t pos1, pos2, start_time;
int test_for_ext_stream_audio, is_dvr_ms_audio=0;
return AVERROR(EINVAL);
}
- pos1 = url_ftell(pb);
+ pos1 = avio_tell(pb);
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
- av_set_pts_info(st, 32, 1, 1000); /* 32 bit pts in ms */
+ avpriv_set_pts_info(st, 32, 1, 1000); /* 32 bit pts in ms */
asf_st = av_mallocz(sizeof(ASFStream));
if (!asf_st)
return AVERROR(ENOMEM);
st->priv_data = asf_st;
+ st->start_time = 0;
start_time = asf->hdr.preroll;
asf_st->stream_language_index = 128; // invalid stream index means no language info
return -1;
}
ff_get_guid(pb, &g);
- total_size = get_le64(pb);
- type_specific_size = get_le32(pb);
- get_le32(pb);
- st->id = get_le16(pb) & 0x7f; /* stream id */
+ avio_skip(pb, 8); /* total_size */
+ type_specific_size = avio_rl32(pb);
+ avio_rl32(pb);
+ st->id = avio_rl16(pb) & 0x7f; /* stream id */
// mapping of asf ID to AV stream ID;
asf->asfid2avid[st->id] = s->nb_streams - 1;
- get_le32(pb);
+ avio_rl32(pb);
if (test_for_ext_stream_audio) {
ff_get_guid(pb, &g);
type = AVMEDIA_TYPE_AUDIO;
is_dvr_ms_audio=1;
ff_get_guid(pb, &g);
- get_le32(pb);
- get_le32(pb);
- get_le32(pb);
+ avio_rl32(pb);
+ avio_rl32(pb);
+ avio_rl32(pb);
ff_get_guid(pb, &g);
- get_le32(pb);
+ avio_rl32(pb);
}
}
st->codec->codec_type = type;
if (type == AVMEDIA_TYPE_AUDIO) {
- ff_get_wav_header(pb, st->codec, type_specific_size);
+ int ret = ff_get_wav_header(pb, st->codec, type_specific_size);
+ if (ret < 0)
+ return ret;
if (is_dvr_ms_audio) {
// codec_id and codec_tag are unreliable in dvr_ms
// files. Set them later by probing stream.
st->need_parsing = AVSTREAM_PARSE_FULL;
}
/* We have to init the frame size at some point .... */
- pos2 = url_ftell(pb);
+ pos2 = avio_tell(pb);
if (size >= (pos2 + 8 - pos1 + 24)) {
- asf_st->ds_span = get_byte(pb);
- asf_st->ds_packet_size = get_le16(pb);
- asf_st->ds_chunk_size = get_le16(pb);
- get_le16(pb); //ds_data_size
- get_byte(pb); //ds_silence_data
+ asf_st->ds_span = avio_r8(pb);
+ asf_st->ds_packet_size = avio_rl16(pb);
+ asf_st->ds_chunk_size = avio_rl16(pb);
+ avio_rl16(pb); //ds_data_size
+ avio_r8(pb); //ds_silence_data
}
//printf("Descrambling: ps:%d cs:%d ds:%d s:%d sd:%d\n",
// asf_st->ds_packet_size, asf_st->ds_chunk_size,
break;
}
} else if (type == AVMEDIA_TYPE_VIDEO &&
- size - (url_ftell(pb) - pos1 + 24) >= 51) {
- get_le32(pb);
- get_le32(pb);
- get_byte(pb);
- get_le16(pb); /* size */
- sizeX= get_le32(pb); /* size */
- st->codec->width = get_le32(pb);
- st->codec->height = get_le32(pb);
+ size - (avio_tell(pb) - pos1 + 24) >= 51) {
+ avio_rl32(pb);
+ avio_rl32(pb);
+ avio_r8(pb);
+ avio_rl16(pb); /* size */
+ sizeX= avio_rl32(pb); /* size */
+ st->codec->width = avio_rl32(pb);
+ st->codec->height = avio_rl32(pb);
/* not available for asf */
- get_le16(pb); /* panes */
- st->codec->bits_per_coded_sample = get_le16(pb); /* depth */
- tag1 = get_le32(pb);
- url_fskip(pb, 20);
+ avio_rl16(pb); /* panes */
+ st->codec->bits_per_coded_sample = avio_rl16(pb); /* depth */
+ tag1 = avio_rl32(pb);
+ avio_skip(pb, 20);
// av_log(s, AV_LOG_DEBUG, "size:%d tsize:%d sizeX:%d\n", size, total_size, sizeX);
if (sizeX > 40) {
st->codec->extradata_size = sizeX - 40;
st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
+ avio_read(pb, st->codec->extradata, st->codec->extradata_size);
}
/* Extract palette from extradata if bpp <= 8 */
/* This code assumes that extradata contains only palette */
- /* This is true for all paletted codecs implemented in ffmpeg */
+ /* This is true for all paletted codecs implemented in libavcodec */
if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
- st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
+ int av_unused i;
#if HAVE_BIGENDIAN
for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++)
- st->codec->palctrl->palette[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
+ asf_st->palette[i] = av_bswap32(((uint32_t*)st->codec->extradata)[i]);
#else
- memcpy(st->codec->palctrl->palette, st->codec->extradata,
- FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
+ memcpy(asf_st->palette, st->codec->extradata,
+ FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
#endif
- st->codec->palctrl->palette_changed = 1;
+ asf_st->palette_changed = 1;
}
st->codec->codec_tag = tag1;
if(st->codec->codec_id == CODEC_ID_H264)
st->need_parsing = AVSTREAM_PARSE_FULL_ONCE;
}
- pos2 = url_ftell(pb);
- url_fskip(pb, size - (pos2 - pos1 + 24));
+ pos2 = avio_tell(pb);
+ avio_skip(pb, size - (pos2 - pos1 + 24));
return 0;
}
static int asf_read_ext_stream_properties(AVFormatContext *s, int64_t size)
{
ASFContext *asf = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
ff_asf_guid g;
int ext_len, payload_ext_ct, stream_ct, i;
- uint32_t ext_d, leak_rate, stream_num;
+ uint32_t leak_rate, stream_num;
unsigned int stream_languageid_index;
- get_le64(pb); // starttime
- get_le64(pb); // endtime
- leak_rate = get_le32(pb); // leak-datarate
- get_le32(pb); // bucket-datasize
- get_le32(pb); // init-bucket-fullness
- get_le32(pb); // alt-leak-datarate
- get_le32(pb); // alt-bucket-datasize
- get_le32(pb); // alt-init-bucket-fullness
- get_le32(pb); // max-object-size
- get_le32(pb); // flags (reliable,seekable,no_cleanpoints?,resend-live-cleanpoints, rest of bits reserved)
- stream_num = get_le16(pb); // stream-num
-
- stream_languageid_index = get_le16(pb); // stream-language-id-index
+ avio_rl64(pb); // starttime
+ avio_rl64(pb); // endtime
+ leak_rate = avio_rl32(pb); // leak-datarate
+ avio_rl32(pb); // bucket-datasize
+ avio_rl32(pb); // init-bucket-fullness
+ avio_rl32(pb); // alt-leak-datarate
+ avio_rl32(pb); // alt-bucket-datasize
+ avio_rl32(pb); // alt-init-bucket-fullness
+ avio_rl32(pb); // max-object-size
+ avio_rl32(pb); // flags (reliable,seekable,no_cleanpoints?,resend-live-cleanpoints, rest of bits reserved)
+ stream_num = avio_rl16(pb); // stream-num
+
+ stream_languageid_index = avio_rl16(pb); // stream-language-id-index
if (stream_num < 128)
asf->streams[stream_num].stream_language_index = stream_languageid_index;
- get_le64(pb); // avg frametime in 100ns units
- stream_ct = get_le16(pb); //stream-name-count
- payload_ext_ct = get_le16(pb); //payload-extension-system-count
+ avio_rl64(pb); // avg frametime in 100ns units
+ stream_ct = avio_rl16(pb); //stream-name-count
+ payload_ext_ct = avio_rl16(pb); //payload-extension-system-count
if (stream_num < 128)
asf->stream_bitrates[stream_num] = leak_rate;
for (i=0; i<stream_ct; i++){
- get_le16(pb);
- ext_len = get_le16(pb);
- url_fseek(pb, ext_len, SEEK_CUR);
+ avio_rl16(pb);
+ ext_len = avio_rl16(pb);
+ avio_skip(pb, ext_len);
}
for (i=0; i<payload_ext_ct; i++){
ff_get_guid(pb, &g);
- ext_d=get_le16(pb);
- ext_len=get_le32(pb);
- url_fseek(pb, ext_len, SEEK_CUR);
+ avio_skip(pb, 2);
+ ext_len=avio_rl32(pb);
+ avio_skip(pb, ext_len);
}
return 0;
static int asf_read_content_desc(AVFormatContext *s, int64_t size)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
int len1, len2, len3, len4, len5;
- len1 = get_le16(pb);
- len2 = get_le16(pb);
- len3 = get_le16(pb);
- len4 = get_le16(pb);
- len5 = get_le16(pb);
+ len1 = avio_rl16(pb);
+ len2 = avio_rl16(pb);
+ len3 = avio_rl16(pb);
+ len4 = avio_rl16(pb);
+ len5 = avio_rl16(pb);
get_tag(s, "title" , 0, len1);
get_tag(s, "author" , 0, len2);
get_tag(s, "copyright", 0, len3);
get_tag(s, "comment" , 0, len4);
- url_fskip(pb, len5);
+ avio_skip(pb, len5);
return 0;
}
static int asf_read_ext_content_desc(AVFormatContext *s, int64_t size)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
ASFContext *asf = s->priv_data;
int desc_count, i, ret;
- desc_count = get_le16(pb);
+ desc_count = avio_rl16(pb);
for(i=0;i<desc_count;i++) {
int name_len,value_type,value_len;
char name[1024];
- name_len = get_le16(pb);
+ name_len = avio_rl16(pb);
if (name_len%2) // must be even, broken lavf versions wrote len-1
name_len += 1;
if ((ret = avio_get_str16le(pb, name_len, name, sizeof(name))) < name_len)
- url_fskip(pb, name_len - ret);
- value_type = get_le16(pb);
- value_len = get_le16(pb);
+ avio_skip(pb, name_len - ret);
+ value_type = avio_rl16(pb);
+ value_len = avio_rl16(pb);
if (!value_type && value_len%2)
value_len += 1;
/**
static int asf_read_language_list(AVFormatContext *s, int64_t size)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
ASFContext *asf = s->priv_data;
int j, ret;
- int stream_count = get_le16(pb);
+ int stream_count = avio_rl16(pb);
for(j = 0; j < stream_count; j++) {
char lang[6];
- unsigned int lang_len = get_byte(pb);
+ unsigned int lang_len = avio_r8(pb);
if ((ret = avio_get_str16le(pb, lang_len, lang, sizeof(lang))) < lang_len)
- url_fskip(pb, lang_len - ret);
+ avio_skip(pb, lang_len - ret);
if (j < 128)
av_strlcpy(asf->stream_languages[j], lang, sizeof(*asf->stream_languages));
}
static int asf_read_metadata(AVFormatContext *s, int64_t size)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
ASFContext *asf = s->priv_data;
- int n, stream_num, name_len, value_len, value_type, value_num;
+ int n, stream_num, name_len, value_len, value_num;
int ret, i;
- n = get_le16(pb);
+ n = avio_rl16(pb);
for(i=0;i<n;i++) {
char name[1024];
- get_le16(pb); //lang_list_index
- stream_num= get_le16(pb);
- name_len= get_le16(pb);
- value_type= get_le16(pb);
- value_len= get_le32(pb);
+ avio_rl16(pb); //lang_list_index
+ stream_num= avio_rl16(pb);
+ name_len= avio_rl16(pb);
+ avio_skip(pb, 2); /* value_type */
+ value_len= avio_rl32(pb);
if ((ret = avio_get_str16le(pb, name_len, name, sizeof(name))) < name_len)
- url_fskip(pb, name_len - ret);
+ avio_skip(pb, name_len - ret);
//av_log(s, AV_LOG_ERROR, "%d %d %d %d %d <%s>\n", i, stream_num, name_len, value_type, value_len, name);
- value_num= get_le16(pb);//we should use get_value() here but it does not work 2 is le16 here but le32 elsewhere
- url_fskip(pb, value_len - 2);
+ value_num= avio_rl16(pb);//we should use get_value() here but it does not work 2 is le16 here but le32 elsewhere
+ avio_skip(pb, value_len - 2);
if(stream_num<128){
if (!strcmp(name, "AspectRatioX")) asf->dar[stream_num].num= value_num;
static int asf_read_marker(AVFormatContext *s, int64_t size)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
int i, count, name_len, ret;
char name[1024];
- get_le64(pb); // reserved 16 bytes
- get_le64(pb); // ...
- count = get_le32(pb); // markers count
- get_le16(pb); // reserved 2 bytes
- name_len = get_le16(pb); // name length
+ avio_rl64(pb); // reserved 16 bytes
+ avio_rl64(pb); // ...
+ count = avio_rl32(pb); // markers count
+ avio_rl16(pb); // reserved 2 bytes
+ name_len = avio_rl16(pb); // name length
for(i=0;i<name_len;i++){
- get_byte(pb); // skip the name
+ avio_r8(pb); // skip the name
}
for(i=0;i<count;i++){
int64_t pres_time;
int name_len;
- get_le64(pb); // offset, 8 bytes
- pres_time = get_le64(pb); // presentation time
- get_le16(pb); // entry length
- get_le32(pb); // send time
- get_le32(pb); // flags
- name_len = get_le32(pb); // name length
+ avio_rl64(pb); // offset, 8 bytes
+ pres_time = avio_rl64(pb); // presentation time
+ avio_rl16(pb); // entry length
+ avio_rl32(pb); // send time
+ avio_rl32(pb); // flags
+ name_len = avio_rl32(pb); // name length
if ((ret = avio_get_str16le(pb, name_len * 2, name, sizeof(name))) < name_len)
- url_fskip(pb, name_len - ret);
- ff_new_chapter(s, i, (AVRational){1, 10000000}, pres_time, AV_NOPTS_VALUE, name );
+ avio_skip(pb, name_len - ret);
+ avpriv_new_chapter(s, i, (AVRational){1, 10000000}, pres_time, AV_NOPTS_VALUE, name );
}
return 0;
{
ASFContext *asf = s->priv_data;
ff_asf_guid g;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
int i;
int64_t gsize;
ff_get_guid(pb, &g);
if (ff_guidcmp(&g, &ff_asf_header))
return -1;
- get_le64(pb);
- get_le32(pb);
- get_byte(pb);
- get_byte(pb);
+ avio_rl64(pb);
+ avio_rl32(pb);
+ avio_r8(pb);
+ avio_r8(pb);
memset(&asf->asfid2avid, -1, sizeof(asf->asfid2avid));
for(;;) {
- uint64_t gpos= url_ftell(pb);
+ uint64_t gpos= avio_tell(pb);
ff_get_guid(pb, &g);
- gsize = get_le64(pb);
+ gsize = avio_rl64(pb);
av_dlog(s, "%08"PRIx64": ", gpos);
print_guid(&g);
av_dlog(s, " size=0x%"PRIx64"\n", gsize);
if (!ff_guidcmp(&g, &ff_asf_data_header)) {
- asf->data_object_offset = url_ftell(pb);
+ asf->data_object_offset = avio_tell(pb);
// if not streaming, gsize is not unlimited (how?), and there is enough space in the file..
if (!(asf->hdr.flags & 0x01) && gsize >= 100) {
asf->data_object_size = gsize - 24;
// if so the next iteration will pick it up
continue;
} else if (!ff_guidcmp(&g, &ff_asf_head1_guid)) {
- int v1, v2;
ff_get_guid(pb, &g);
- v1 = get_le32(pb);
- v2 = get_le16(pb);
+ avio_skip(pb, 6);
continue;
} else if (!ff_guidcmp(&g, &ff_asf_marker_header)) {
asf_read_marker(s, gsize);
- } else if (url_feof(pb)) {
+ } else if (pb->eof_reached) {
return -1;
} else {
if (!s->keylen) {
}
}
}
- if(url_ftell(pb) != gpos + gsize)
- av_log(s, AV_LOG_DEBUG, "gpos mismatch our pos=%"PRIu64", end=%"PRIu64"\n", url_ftell(pb)-gpos, gsize);
- url_fseek(pb, gpos + gsize, SEEK_SET);
+ if(avio_tell(pb) != gpos + gsize)
+ av_log(s, AV_LOG_DEBUG, "gpos mismatch our pos=%"PRIu64", end=%"PRIu64"\n", avio_tell(pb)-gpos, gsize);
+ avio_seek(pb, gpos + gsize, SEEK_SET);
}
ff_get_guid(pb, &g);
- get_le64(pb);
- get_byte(pb);
- get_byte(pb);
- if (url_feof(pb))
+ avio_rl64(pb);
+ avio_r8(pb);
+ avio_r8(pb);
+ if (pb->eof_reached)
return -1;
- asf->data_offset = url_ftell(pb);
+ asf->data_offset = avio_tell(pb);
asf->packet_size_left = 0;
const char primary_tag[3] = { rfc1766[0], rfc1766[1], '\0' }; // ignore country code if any
const char *iso6392 = av_convert_lang_to(primary_tag, AV_LANG_ISO639_2_BIBL);
if (iso6392)
- av_metadata_set2(&st->metadata, "language", iso6392, 0);
+ av_dict_set(&st->metadata, "language", iso6392, 0);
}
}
}
#define DO_2BITS(bits, var, defval) \
switch (bits & 3) \
{ \
- case 3: var = get_le32(pb); rsize += 4; break; \
- case 2: var = get_le16(pb); rsize += 2; break; \
- case 1: var = get_byte(pb); rsize++; break; \
+ case 3: var = avio_rl32(pb); rsize += 4; break; \
+ case 2: var = avio_rl16(pb); rsize += 2; break; \
+ case 1: var = avio_r8(pb); rsize++; break; \
default: var = defval; break; \
}
* @param pb context to read data from
* @return 0 on success, <0 on error
*/
-static int ff_asf_get_packet(AVFormatContext *s, ByteIOContext *pb)
+static int ff_asf_get_packet(AVFormatContext *s, AVIOContext *pb)
{
ASFContext *asf = s->priv_data;
uint32_t packet_length, padsize;
// if we do not know packet size, allow skipping up to 32 kB
off= 32768;
if (s->packet_size > 0)
- off= (url_ftell(pb) - s->data_offset) % s->packet_size + 3;
+ off= (avio_tell(pb) - s->data_offset) % s->packet_size + 3;
c=d=e=-1;
while(off-- > 0){
c=d; d=e;
- e= get_byte(pb);
+ e= avio_r8(pb);
if(c == 0x82 && !d && !e)
break;
}
* imply complete -EAGAIN handling support at random positions in
* the stream.
*/
- if (url_ferror(pb) == AVERROR(EAGAIN))
+ if (pb->error == AVERROR(EAGAIN))
return AVERROR(EAGAIN);
- if (!url_feof(pb))
- av_log(s, AV_LOG_ERROR, "ff asf bad header %x at:%"PRId64"\n", c, url_ftell(pb));
+ if (!pb->eof_reached)
+ av_log(s, AV_LOG_ERROR, "ff asf bad header %x at:%"PRId64"\n", c, avio_tell(pb));
}
if ((c & 0x8f) == 0x82) {
if (d || e) {
- if (!url_feof(pb))
+ if (!pb->eof_reached)
av_log(s, AV_LOG_ERROR, "ff asf bad non zero\n");
return -1;
}
- c= get_byte(pb);
- d= get_byte(pb);
+ c= avio_r8(pb);
+ d= avio_r8(pb);
rsize+=3;
}else{
- url_fseek(pb, -1, SEEK_CUR); //FIXME
+ avio_seek(pb, -1, SEEK_CUR); //FIXME
}
asf->packet_flags = c;
//the following checks prevent overflows and infinite loops
if(!packet_length || packet_length >= (1U<<29)){
- av_log(s, AV_LOG_ERROR, "invalid packet_length %d at:%"PRId64"\n", packet_length, url_ftell(pb));
+ av_log(s, AV_LOG_ERROR, "invalid packet_length %d at:%"PRId64"\n", packet_length, avio_tell(pb));
return -1;
}
if(padsize >= packet_length){
- av_log(s, AV_LOG_ERROR, "invalid padsize %d at:%"PRId64"\n", padsize, url_ftell(pb));
+ av_log(s, AV_LOG_ERROR, "invalid padsize %d at:%"PRId64"\n", padsize, avio_tell(pb));
return -1;
}
- asf->packet_timestamp = get_le32(pb);
- get_le16(pb); /* duration */
+ asf->packet_timestamp = avio_rl32(pb);
+ avio_rl16(pb); /* duration */
// rsize has at least 11 bytes which have to be present
if (asf->packet_flags & 0x01) {
- asf->packet_segsizetype = get_byte(pb); rsize++;
+ asf->packet_segsizetype = avio_r8(pb); rsize++;
asf->packet_segments = asf->packet_segsizetype & 0x3f;
} else {
asf->packet_segments = 1;
*
* @return <0 if error
*/
-static int asf_read_frame_header(AVFormatContext *s, ByteIOContext *pb){
+static int asf_read_frame_header(AVFormatContext *s, AVIOContext *pb){
ASFContext *asf = s->priv_data;
int rsize = 1;
- int num = get_byte(pb);
- int64_t ts0, ts1;
+ int num = avio_r8(pb);
+ int64_t ts0;
asf->packet_segments--;
asf->packet_key_frame = num >> 7;
DO_2BITS(asf->packet_property, asf->packet_replic_size, 0);
//printf("key:%d stream:%d seq:%d offset:%d replic_size:%d\n", asf->packet_key_frame, asf->stream_index, asf->packet_seq, //asf->packet_frag_offset, asf->packet_replic_size);
if (asf->packet_replic_size >= 8) {
- asf->packet_obj_size = get_le32(pb);
+ asf->packet_obj_size = avio_rl32(pb);
if(asf->packet_obj_size >= (1<<24) || asf->packet_obj_size <= 0){
av_log(s, AV_LOG_ERROR, "packet_obj_size invalid\n");
return -1;
}
- asf->packet_frag_timestamp = get_le32(pb); // timestamp
+ asf->packet_frag_timestamp = avio_rl32(pb); // timestamp
if(asf->packet_replic_size >= 8+38+4){
// for(i=0; i<asf->packet_replic_size-8; i++)
-// av_log(s, AV_LOG_DEBUG, "%02X ",get_byte(pb));
+// av_log(s, AV_LOG_DEBUG, "%02X ",avio_r8(pb));
// av_log(s, AV_LOG_DEBUG, "\n");
- url_fskip(pb, 10);
- ts0= get_le64(pb);
- ts1= get_le64(pb);
- url_fskip(pb, 12);
- get_le32(pb);
- url_fskip(pb, asf->packet_replic_size - 8 - 38 - 4);
+ avio_skip(pb, 10);
+ ts0= avio_rl64(pb);
+ avio_skip(pb, 8);;
+ avio_skip(pb, 12);
+ avio_rl32(pb);
+ avio_skip(pb, asf->packet_replic_size - 8 - 38 - 4);
if(ts0!= -1) asf->packet_frag_timestamp= ts0/10000;
else asf->packet_frag_timestamp= AV_NOPTS_VALUE;
}else
- url_fskip(pb, asf->packet_replic_size - 8);
+ avio_skip(pb, asf->packet_replic_size - 8);
rsize += asf->packet_replic_size; // FIXME - check validity
} else if (asf->packet_replic_size==1){
// multipacket - frag_offset is beginning timestamp
asf->packet_frag_offset = 0;
asf->packet_frag_timestamp = asf->packet_timestamp;
- asf->packet_time_delta = get_byte(pb);
+ asf->packet_time_delta = avio_r8(pb);
rsize++;
}else if(asf->packet_replic_size!=0){
av_log(s, AV_LOG_ERROR, "unexpected packet_replic_size of %d\n", asf->packet_replic_size);
}
if (asf->packet_flags & 0x01) {
DO_2BITS(asf->packet_segsizetype >> 6, asf->packet_frag_size, 0); // 0 is illegal
- if(asf->packet_frag_size > asf->packet_size_left - rsize){
- av_log(s, AV_LOG_ERROR, "packet_frag_size is invalid\n");
+ if (rsize > asf->packet_size_left) {
+ av_log(s, AV_LOG_ERROR, "packet_replic_size is invalid\n");
return -1;
+ } else if(asf->packet_frag_size > asf->packet_size_left - rsize){
+ if (asf->packet_frag_size > asf->packet_size_left - rsize + asf->packet_padsize) {
+ av_log(s, AV_LOG_ERROR, "packet_frag_size is invalid (%d-%d)\n", asf->packet_size_left, rsize);
+ return -1;
+ } else {
+ int diff = asf->packet_frag_size - (asf->packet_size_left - rsize);
+ asf->packet_size_left += diff;
+ asf->packet_padsize -= diff;
+ }
}
//printf("Fragsize %d\n", asf->packet_frag_size);
} else {
+ if (rsize > asf->packet_size_left) {
+ av_log(s, AV_LOG_ERROR, "packet_replic_size is invalid\n");
+ return -1;
+ }
asf->packet_frag_size = asf->packet_size_left - rsize;
//printf("Using rest %d %d %d\n", asf->packet_frag_size, asf->packet_size_left, rsize);
}
* @return 0 if data was stored in pkt, <0 on error or 1 if more ASF
* packets need to be loaded (through asf_get_packet())
*/
-static int ff_asf_parse_packet(AVFormatContext *s, ByteIOContext *pb, AVPacket *pkt)
+static int ff_asf_parse_packet(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt)
{
ASFContext *asf = s->priv_data;
ASFStream *asf_st = 0;
for (;;) {
int ret;
- if(url_feof(pb))
+ if(pb->eof_reached)
return AVERROR_EOF;
if (asf->packet_size_left < FRAME_HEADER_SIZE
|| asf->packet_segments < 1) {
//asf->packet_size_left <= asf->packet_padsize) {
int ret = asf->packet_size_left + asf->packet_padsize;
- //printf("PacketLeftSize:%d Pad:%d Pos:%"PRId64"\n", asf->packet_size_left, asf->packet_padsize, url_ftell(pb));
+ //printf("PacketLeftSize:%d Pad:%d Pos:%"PRId64"\n", asf->packet_size_left, asf->packet_padsize, avio_tell(pb));
assert(ret>=0);
/* fail safe */
- url_fskip(pb, ret);
+ avio_skip(pb, ret);
- asf->packet_pos= url_ftell(pb);
+ asf->packet_pos= avio_tell(pb);
if (asf->data_object_size != (uint64_t)-1 &&
(asf->packet_pos - asf->data_object_offset >= asf->data_object_size))
return AVERROR_EOF; /* Do not exceed the size of the data object */
) {
asf->packet_time_start = 0;
/* unhandled packet (should not happen) */
- url_fskip(pb, asf->packet_frag_size);
+ avio_skip(pb, asf->packet_frag_size);
asf->packet_size_left -= asf->packet_frag_size;
if(asf->stream_index < 0)
av_log(s, AV_LOG_ERROR, "ff asf skip %d (unknown stream)\n", asf->packet_frag_size);
// frag_offset is here used as the beginning timestamp
asf->packet_frag_timestamp = asf->packet_time_start;
asf->packet_time_start += asf->packet_time_delta;
- asf->packet_obj_size = asf->packet_frag_size = get_byte(pb);
+ asf->packet_obj_size = asf->packet_frag_size = avio_r8(pb);
asf->packet_size_left--;
asf->packet_multi_size--;
if (asf->packet_multi_size < asf->packet_obj_size)
{
asf->packet_time_start = 0;
- url_fskip(pb, asf->packet_multi_size);
+ avio_skip(pb, asf->packet_multi_size);
asf->packet_size_left -= asf->packet_multi_size;
continue;
}
/* new packet */
av_new_packet(&asf_st->pkt, asf->packet_obj_size);
asf_st->seq = asf->packet_seq;
- asf_st->pkt.dts = asf->packet_frag_timestamp;
+ asf_st->pkt.dts = asf->packet_frag_timestamp - asf->hdr.preroll;
asf_st->pkt.stream_index = asf->stream_index;
asf_st->pkt.pos =
asf_st->packet_pos= asf->packet_pos;
+ if (asf_st->pkt.data && asf_st->palette_changed) {
+ uint8_t *pal;
+ pal = av_packet_new_side_data(&asf_st->pkt, AV_PKT_DATA_PALETTE,
+ AVPALETTE_SIZE);
+ if (!pal) {
+ av_log(s, AV_LOG_ERROR, "Cannot append palette to packet\n");
+ } else {
+ memcpy(pal, asf_st->palette, AVPALETTE_SIZE);
+ asf_st->palette_changed = 0;
+ }
+ }
//printf("new packet: stream:%d key:%d packet_key:%d audio:%d size:%d\n",
//asf->stream_index, asf->packet_key_frame, asf_st->pkt.flags & AV_PKT_FLAG_KEY,
//s->streams[asf->stream_index]->codec->codec_type == AVMEDIA_TYPE_AUDIO, asf->packet_obj_size);
continue;
}
- ret = get_buffer(pb, asf_st->pkt.data + asf->packet_frag_offset,
+ ret = avio_read(pb, asf_st->pkt.data + asf->packet_frag_offset,
asf->packet_frag_size);
if (ret != asf->packet_frag_size) {
if (ret < 0 || asf->packet_frag_offset + ret == 0)
assert(asf->packet_size_left < FRAME_HEADER_SIZE || asf->packet_segments < 1);
asf->packet_time_start = 0;
}
-
- return 0;
}
// Added to support seeking after packets have been read
static int asf_read_close(AVFormatContext *s)
{
- int i;
-
asf_reset_header(s);
- for(i=0;i<s->nb_streams;i++) {
- AVStream *st = s->streams[i];
- av_free(st->codec->palctrl);
- }
+
return 0;
}
if (s->packet_size > 0)
pos= (pos+s->packet_size-1-s->data_offset)/s->packet_size*s->packet_size+ s->data_offset;
*ppos= pos;
- url_fseek(s->pb, pos, SEEK_SET);
+ avio_seek(s->pb, pos, SEEK_SET);
//printf("asf_read_pts\n");
asf_reset_header(s);
for(;;){
- if (av_read_frame(s, pkt) < 0){
+ if (asf_read_packet(s, pkt) < 0){
av_log(s, AV_LOG_INFO, "asf_read_pts failed\n");
return AV_NOPTS_VALUE;
}
- pts= pkt->pts;
+ pts = pkt->dts;
av_free_packet(pkt);
if(pkt->flags&AV_PKT_FLAG_KEY){
{
ff_asf_guid g;
ASFContext *asf = s->priv_data;
- int64_t current_pos= url_ftell(s->pb);
+ int64_t current_pos= avio_tell(s->pb);
int i;
- url_fseek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET);
+ avio_seek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET);
ff_get_guid(s->pb, &g);
/* the data object can be followed by other top-level objects,
skip them until the simple index object is reached */
while (ff_guidcmp(&g, &index_guid)) {
- int64_t gsize= get_le64(s->pb);
- if (gsize < 24 || url_feof(s->pb)) {
- url_fseek(s->pb, current_pos, SEEK_SET);
+ int64_t gsize= avio_rl64(s->pb);
+ if (gsize < 24 || s->pb->eof_reached) {
+ avio_seek(s->pb, current_pos, SEEK_SET);
return;
}
- url_fseek(s->pb, gsize-24, SEEK_CUR);
+ avio_skip(s->pb, gsize-24);
ff_get_guid(s->pb, &g);
}
{
int64_t itime, last_pos=-1;
int pct, ict;
- int64_t av_unused gsize= get_le64(s->pb);
+ int64_t av_unused gsize= avio_rl64(s->pb);
ff_get_guid(s->pb, &g);
- itime=get_le64(s->pb);
- pct=get_le32(s->pb);
- ict=get_le32(s->pb);
+ itime=avio_rl64(s->pb);
+ pct=avio_rl32(s->pb);
+ ict=avio_rl32(s->pb);
av_log(s, AV_LOG_DEBUG, "itime:0x%"PRIx64", pct:%d, ict:%d\n",itime,pct,ict);
for (i=0;i<ict;i++){
- int pktnum=get_le32(s->pb);
- int pktct =get_le16(s->pb);
+ int pktnum=avio_rl32(s->pb);
+ int pktct =avio_rl16(s->pb);
int64_t pos = s->data_offset + s->packet_size*(int64_t)pktnum;
- int64_t index_pts= av_rescale(itime, i, 10000);
+ int64_t index_pts= FFMAX(av_rescale(itime, i, 10000) - asf->hdr.preroll, 0);
if(pos != last_pos){
- av_log(s, AV_LOG_DEBUG, "pktnum:%d, pktct:%d\n", pktnum, pktct);
+ av_log(s, AV_LOG_DEBUG, "pktnum:%d, pktct:%d pts: %"PRId64"\n", pktnum, pktct, index_pts);
av_add_index_entry(s->streams[stream_index], pos, index_pts, s->packet_size, 0, AVINDEX_KEYFRAME);
last_pos=pos;
}
}
asf->index_read= 1;
}
- url_fseek(s->pb, current_pos, SEEK_SET);
+ avio_seek(s->pb, current_pos, SEEK_SET);
}
static int asf_read_seek(AVFormatContext *s, int stream_index, int64_t pts, int flags)
/* Try using the protocol's read_seek if available */
if(s->pb) {
- int ret = av_url_read_fseek(s->pb, stream_index, pts, flags);
+ int ret = avio_seek_time(s->pb, stream_index, pts, flags);
if(ret >= 0)
asf_reset_header(s);
if (ret != AVERROR(ENOSYS))
if (!asf->index_read)
asf_build_simple_index(s, stream_index);
- if(!(asf->index_read && st->index_entries)){
- if(av_seek_frame_binary(s, stream_index, pts, flags)<0)
- return -1;
- }else{
+ if((asf->index_read && st->index_entries)){
index= av_index_search_timestamp(st, pts, flags);
- if(index<0)
- return -1;
+ if(index >= 0) {
+ /* find the position */
+ pos = st->index_entries[index].pos;
- /* find the position */
- pos = st->index_entries[index].pos;
-
- // various attempts to find key frame have failed so far
- // asf_reset_header(s);
- // url_fseek(s->pb, pos, SEEK_SET);
- // key_pos = pos;
- // for(i=0;i<16;i++){
- // pos = url_ftell(s->pb);
- // if (av_read_frame(s, &pkt) < 0){
- // av_log(s, AV_LOG_INFO, "seek failed\n");
- // return -1;
- // }
- // asf_st = s->streams[stream_index]->priv_data;
- // pos += st->parser->frame_offset;
- //
- // if (pkt.size > b) {
- // b = pkt.size;
- // key_pos = pos;
- // }
- //
- // av_free_packet(&pkt);
- // }
-
- /* do the seek */
- av_log(s, AV_LOG_DEBUG, "SEEKTO: %"PRId64"\n", pos);
- url_fseek(s->pb, pos, SEEK_SET);
+ /* do the seek */
+ av_log(s, AV_LOG_DEBUG, "SEEKTO: %"PRId64"\n", pos);
+ avio_seek(s->pb, pos, SEEK_SET);
+ asf_reset_header(s);
+ return 0;
+ }
}
+ /* no index or seeking by index failed */
+ if (ff_seek_frame_binary(s, stream_index, pts, flags) < 0)
+ return -1;
asf_reset_header(s);
return 0;
}
AVInputFormat ff_asf_demuxer = {
- "asf",
- NULL_IF_CONFIG_SMALL("ASF format"),
- sizeof(ASFContext),
- asf_probe,
- asf_read_header,
- asf_read_packet,
- asf_read_close,
- asf_read_seek,
- asf_read_pts,
+ .name = "asf",
+ .long_name = NULL_IF_CONFIG_SMALL("ASF format"),
+ .priv_data_size = sizeof(ASFContext),
+ .read_probe = asf_probe,
+ .read_header = asf_read_header,
+ .read_packet = asf_read_packet,
+ .read_close = asf_read_close,
+ .read_seek = asf_read_seek,
+ .read_timestamp = asf_read_pts,
+ .flags = AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH,
};
projects / ffmpeg / blobdiff