* 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/common.h"
+#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
-#include "libavcodec/mpegaudio.h"
+#include "libavutil/bswap.h"
+#include "libavutil/common.h"
+#include "libavutil/dict.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/opt.h"
#include "avformat.h"
+#include "avio_internal.h"
+#include "avlanguage.h"
+#include "id3v2.h"
+#include "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 {
+ const AVClass *class;
+ int asfid2avid[128]; ///< conversion table from asf ID 2 AVStream ID
+ ASFStream streams[128]; ///< it's max number and it's not that big
+ uint32_t stream_bitrates[128]; ///< max number of streams, bitrate for each (for streaming)
+ AVRational dar[128];
+ char stream_languages[128][6]; ///< max number of streams, language for each (RFC1766, e.g. en-US)
+ /* non streamed additonnal info */
+ /* packet filling */
+ int packet_size_left;
+ /* only for reading */
+ uint64_t data_offset; ///< beginning of the first data packet
+ uint64_t data_object_offset; ///< data object offset (excl. GUID & size)
+ uint64_t data_object_size; ///< size of the data object
+ int index_read;
+
+ ASFMainHeader hdr;
+
+ int packet_flags;
+ int packet_property;
+ int packet_timestamp;
+ int packet_segsizetype;
+ int packet_segments;
+ int packet_seq;
+ int packet_replic_size;
+ int packet_key_frame;
+ int packet_padsize;
+ unsigned int packet_frag_offset;
+ unsigned int packet_frag_size;
+ int64_t packet_frag_timestamp;
+ int packet_multi_size;
+ int packet_obj_size;
+ int packet_time_delta;
+ int packet_time_start;
+ int64_t packet_pos;
+
+ int stream_index;
+
+ ASFStream *asf_st; ///< currently decoded stream
+
+ int no_resync_search;
+} ASFContext;
+
+static const AVOption options[] = {
+ { "no_resync_search", "Don't try to resynchronize by looking for a certain optional start code", offsetof(ASFContext, no_resync_search), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
+ { NULL },
+};
+
+static const AVClass asf_class = {
+ .class_name = "asf demuxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
#undef NDEBUG
#include <assert.h>
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 */
-static int guidcmp(const void *g1, const void *g2)
-{
- return memcmp(g1, g2, sizeof(ff_asf_guid));
-}
+#define PRINT_IF_GUID(g, cmp) \
+ if (!ff_guidcmp(g, &cmp)) \
+ av_dlog(NULL, "(GUID: %s) ", # cmp)
-#ifdef DEBUG
-#define PRINT_IF_GUID(g,cmp) \
-if (!guidcmp(g, &cmp)) \
- dprintf(NULL, "(GUID: %s) ", #cmp)
-
-static void print_guid(const ff_asf_guid *g)
+static void print_guid(ff_asf_guid *g)
{
int i;
PRINT_IF_GUID(g, ff_asf_header);
else PRINT_IF_GUID(g, ff_asf_ext_stream_embed_stream_header);
else PRINT_IF_GUID(g, ff_asf_ext_stream_audio_stream);
else PRINT_IF_GUID(g, ff_asf_metadata_header);
+ else PRINT_IF_GUID(g, ff_asf_metadata_library_header);
else PRINT_IF_GUID(g, ff_asf_marker_header);
else PRINT_IF_GUID(g, stream_bitrate_guid);
else PRINT_IF_GUID(g, ff_asf_language_guid);
else
- dprintf(NULL, "(GUID: unknown) ");
- for(i=0;i<16;i++)
- dprintf(NULL, " 0x%02x,", (*g)[i]);
- dprintf(NULL, "}\n");
+ av_dlog(NULL, "(GUID: unknown) ");
+ for (i = 0; i < 16; i++)
+ av_dlog(NULL, " 0x%02x,", (*g)[i]);
+ av_dlog(NULL, "}\n");
}
#undef PRINT_IF_GUID
#else
#define print_guid(g)
#endif
-static void 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));
}
-#if 0
-static void get_str16(ByteIOContext *pb, char *buf, int buf_size)
+static int asf_probe(AVProbeData *pd)
{
- int len, c;
- char *q;
-
- len = get_le16(pb);
- q = buf;
- while (len > 0) {
- c = get_le16(pb);
- if ((q - buf) < buf_size - 1)
- *q++ = c;
- len--;
- }
- *q = '\0';
+ /* check file header */
+ if (!ff_guidcmp(pd->buf, &ff_asf_header))
+ return AVPROBE_SCORE_MAX;
+ else
+ return 0;
}
-#endif
-static void get_str16_nolen(ByteIOContext *pb, int len, char *buf, int buf_size)
+/* size of type 2 (BOOL) is 32bit for "Extended Content Description Object"
+ * but 16 bit for "Metadata Object" and "Metadata Library Object" */
+static int get_value(AVIOContext *pb, int type, int type2_size)
{
- char* q = buf;
- while (len > 1) {
- uint8_t tmp;
- uint32_t ch;
-
- GET_UTF16(ch, (len -= 2) >= 0 ? get_le16(pb) : 0, break;)
- PUT_UTF8(ch, tmp, if (q - buf < buf_size - 1) *q++ = tmp;)
+ switch (type) {
+ case 2:
+ return (type2_size == 32) ? avio_rl32(pb) : avio_rl16(pb);
+ case 3:
+ return avio_rl32(pb);
+ case 4:
+ return avio_rl64(pb);
+ case 5:
+ return avio_rl16(pb);
+ default:
+ return INT_MIN;
}
- if (len > 0)
- url_fskip(pb, len);
- *q = '\0';
}
-static int asf_probe(AVProbeData *pd)
+/* MSDN claims that this should be "compatible with the ID3 frame, APIC",
+ * but in reality this is only loosely similar */
+static int asf_read_picture(AVFormatContext *s, int len)
{
- /* check file header */
- if (!guidcmp(pd->buf, &ff_asf_header))
- return AVPROBE_SCORE_MAX;
- else
+ AVPacket pkt = { 0 };
+ const CodecMime *mime = ff_id3v2_mime_tags;
+ enum AVCodecID id = AV_CODEC_ID_NONE;
+ char mimetype[64];
+ uint8_t *desc = NULL;
+ AVStream *st = NULL;
+ int ret, type, picsize, desc_len;
+
+ /* type + picsize + mime + desc */
+ if (len < 1 + 4 + 2 + 2) {
+ av_log(s, AV_LOG_ERROR, "Invalid attached picture size: %d.\n", len);
+ return AVERROR_INVALIDDATA;
+ }
+
+ /* picture type */
+ type = avio_r8(s->pb);
+ len--;
+ if (type >= FF_ARRAY_ELEMS(ff_id3v2_picture_types) || type < 0) {
+ av_log(s, AV_LOG_WARNING, "Unknown attached picture type: %d.\n", type);
+ type = 0;
+ }
+
+ /* picture data size */
+ picsize = avio_rl32(s->pb);
+ len -= 4;
+
+ /* picture MIME type */
+ len -= avio_get_str16le(s->pb, len, mimetype, sizeof(mimetype));
+ while (mime->id != AV_CODEC_ID_NONE) {
+ if (!strncmp(mime->str, mimetype, sizeof(mimetype))) {
+ id = mime->id;
+ break;
+ }
+ mime++;
+ }
+ if (id == AV_CODEC_ID_NONE) {
+ av_log(s, AV_LOG_ERROR, "Unknown attached picture mimetype: %s.\n",
+ mimetype);
return 0;
-}
+ }
-static int get_value(ByteIOContext *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);
- default:return INT_MIN;
+ if (picsize >= len) {
+ av_log(s, AV_LOG_ERROR, "Invalid attached picture data size: %d >= %d.\n",
+ picsize, len);
+ return AVERROR_INVALIDDATA;
}
+
+ /* picture description */
+ desc_len = (len - picsize) * 2 + 1;
+ desc = av_malloc(desc_len);
+ if (!desc)
+ return AVERROR(ENOMEM);
+ len -= avio_get_str16le(s->pb, len - picsize, desc, desc_len);
+
+ ret = av_get_packet(s->pb, &pkt, picsize);
+ if (ret < 0)
+ goto fail;
+
+ st = avformat_new_stream(s, NULL);
+ if (!st) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = id;
+ st->attached_pic = pkt;
+ st->attached_pic.stream_index = st->index;
+ st->attached_pic.flags |= AV_PKT_FLAG_KEY;
+
+ if (*desc)
+ av_dict_set(&st->metadata, "title", desc, AV_DICT_DONT_STRDUP_VAL);
+ else
+ av_freep(&desc);
+
+ av_dict_set(&st->metadata, "comment", ff_id3v2_picture_types[type], 0);
+
+ return 0;
+
+fail:
+ av_freep(&desc);
+ av_free_packet(&pkt);
+ return ret;
}
-static void get_tag(AVFormatContext *s, const char *key, int type, int len)
+static void get_id3_tag(AVFormatContext *s, int len)
+{
+ ID3v2ExtraMeta *id3v2_extra_meta = NULL;
+
+ ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta);
+ if (id3v2_extra_meta)
+ ff_id3v2_parse_apic(s, &id3v2_extra_meta);
+ ff_id3v2_free_extra_meta(&id3v2_extra_meta);
+}
+
+static void get_tag(AVFormatContext *s, const char *key, int type, int len, int type2_size)
{
char *value;
+ int64_t off = avio_tell(s->pb);
- if ((unsigned)len >= (UINT_MAX - 1)/2)
+ if ((unsigned)len >= (UINT_MAX - 1) / 2)
return;
- value = av_malloc(2*len+1);
+ value = av_malloc(2 * len + 1);
if (!value)
- return;
+ goto finish;
if (type == 0) { // UTF16-LE
- get_str16_nolen(s->pb, len, value, 2*len + 1);
+ avio_get_str16le(s->pb, len, value, 2 * len + 1);
+ } else if (type == 1) { // byte array
+ if (!strcmp(key, "WM/Picture")) { // handle cover art
+ asf_read_picture(s, len);
+ } else if (!strcmp(key, "ID3")) { // handle ID3 tag
+ get_id3_tag(s, len);
+ } else {
+ av_log(s, AV_LOG_VERBOSE, "Unsupported byte array in tag %s.\n", key);
+ }
+ goto finish;
} else if (type > 1 && type <= 5) { // boolean or DWORD or QWORD or WORD
- uint64_t num = get_value(s->pb, type);
+ uint64_t num = get_value(s->pb, type, type2_size);
snprintf(value, len, "%"PRIu64, num);
+ } else if (type == 6) { // (don't) handle GUID
+ av_log(s, AV_LOG_DEBUG, "Unsupported GUID value in tag %s.\n", key);
+ goto finish;
} else {
- url_fskip(s->pb, len);
- av_freep(&value);
- av_log(s, AV_LOG_DEBUG, "Unsupported value type %d in tag %s.\n", type, key);
- 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);
+ avio_seek(s->pb, off + len, SEEK_SET);
}
-static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
+static int asf_read_file_properties(AVFormatContext *s, int64_t size)
{
ASFContext *asf = s->priv_data;
- ff_asf_guid g;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
+
+ ff_get_guid(pb, &asf->hdr.guid);
+ 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);
+ if (asf->hdr.min_pktsize >= (1U << 29))
+ return AVERROR_INVALIDDATA;
+ 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;
+ AVIOContext *pb = s->pb;
AVStream *st;
ASFStream *asf_st;
- int size, i;
- int64_t gsize;
- AVRational dar[128];
- uint32_t bitrate[128];
+ ff_asf_guid g;
+ enum AVMediaType type;
+ int type_specific_size, sizeX;
+ unsigned int tag1;
+ int64_t pos1, pos2, start_time;
+ int test_for_ext_stream_audio, is_dvr_ms_audio = 0;
+
+ if (s->nb_streams == ASF_MAX_STREAMS) {
+ av_log(s, AV_LOG_ERROR, "too many streams\n");
+ return AVERROR(EINVAL);
+ }
+
+ pos1 = avio_tell(pb);
- memset(dar, 0, sizeof(dar));
- memset(bitrate, 0, sizeof(bitrate));
+ st = avformat_new_stream(s, NULL);
+ if (!st)
+ return AVERROR(ENOMEM);
+ 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;
- get_guid(pb, &g);
- if (guidcmp(&g, &ff_asf_header))
+ asf_st->stream_language_index = 128; // invalid stream index means no language info
+
+ if (!(asf->hdr.flags & 0x01)) { // if we aren't streaming...
+ st->duration = asf->hdr.play_time /
+ (10000000 / 1000) - start_time;
+ }
+ ff_get_guid(pb, &g);
+
+ test_for_ext_stream_audio = 0;
+ if (!ff_guidcmp(&g, &ff_asf_audio_stream)) {
+ type = AVMEDIA_TYPE_AUDIO;
+ } else if (!ff_guidcmp(&g, &ff_asf_video_stream)) {
+ type = AVMEDIA_TYPE_VIDEO;
+ } else if (!ff_guidcmp(&g, &ff_asf_jfif_media)) {
+ type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = AV_CODEC_ID_MJPEG;
+ } else if (!ff_guidcmp(&g, &ff_asf_command_stream)) {
+ type = AVMEDIA_TYPE_DATA;
+ } else if (!ff_guidcmp(&g, &ff_asf_ext_stream_embed_stream_header)) {
+ test_for_ext_stream_audio = 1;
+ type = AVMEDIA_TYPE_UNKNOWN;
+ } else {
return -1;
- get_le64(pb);
- get_le32(pb);
- get_byte(pb);
- get_byte(pb);
- memset(&asf->asfid2avid, -1, sizeof(asf->asfid2avid));
- for(;;) {
- uint64_t gpos= url_ftell(pb);
- get_guid(pb, &g);
- gsize = get_le64(pb);
- dprintf(s, "%08"PRIx64": ", gpos);
- print_guid(&g);
- dprintf(s, " size=0x%"PRIx64"\n", gsize);
- if (!guidcmp(&g, &ff_asf_data_header)) {
- asf->data_object_offset = url_ftell(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;
- } else {
- asf->data_object_size = (uint64_t)-1;
- }
- break;
+ }
+ ff_get_guid(pb, &g);
+ 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;
+
+ avio_rl32(pb);
+
+ if (test_for_ext_stream_audio) {
+ ff_get_guid(pb, &g);
+ if (!ff_guidcmp(&g, &ff_asf_ext_stream_audio_stream)) {
+ type = AVMEDIA_TYPE_AUDIO;
+ is_dvr_ms_audio = 1;
+ ff_get_guid(pb, &g);
+ avio_rl32(pb);
+ avio_rl32(pb);
+ avio_rl32(pb);
+ ff_get_guid(pb, &g);
+ avio_rl32(pb);
}
- if (gsize < 24)
- return -1;
- if (!guidcmp(&g, &ff_asf_file_header)) {
- get_guid(pb, &asf->hdr.guid);
- asf->hdr.file_size = get_le64(pb);
- asf->hdr.create_time = get_le64(pb);
- asf->nb_packets = get_le64(pb);
- 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);
- s->packet_size = asf->hdr.max_pktsize;
- } else if (!guidcmp(&g, &ff_asf_stream_header)) {
- 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;
-
- if (s->nb_streams == ASF_MAX_STREAMS) {
- av_log(s, AV_LOG_ERROR, "too many streams\n");
- return AVERROR(EINVAL);
- }
+ }
- pos1 = url_ftell(pb);
+ st->codec->codec_type = type;
+ if (type == AVMEDIA_TYPE_AUDIO) {
+ 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->codec->codec_id = AV_CODEC_ID_PROBE;
+ st->codec->codec_tag = 0;
+ }
+ if (st->codec->codec_id == AV_CODEC_ID_AAC)
+ st->need_parsing = AVSTREAM_PARSE_NONE;
+ else
+ st->need_parsing = AVSTREAM_PARSE_FULL;
+ /* We have to init the frame size at some point .... */
+ pos2 = avio_tell(pb);
+ if (size >= (pos2 + 8 - pos1 + 24)) {
+ 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
+ }
+ if (asf_st->ds_span > 1) {
+ if (!asf_st->ds_chunk_size ||
+ (asf_st->ds_packet_size / asf_st->ds_chunk_size <= 1) ||
+ asf_st->ds_packet_size % asf_st->ds_chunk_size)
+ asf_st->ds_span = 0; // disable descrambling
+ }
+ } else if (type == AVMEDIA_TYPE_VIDEO &&
+ 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 */
+ avio_rl16(pb); /* panes */
+ st->codec->bits_per_coded_sample = avio_rl16(pb); /* depth */
+ tag1 = avio_rl32(pb);
+ avio_skip(pb, 20);
+ if (sizeX > 40) {
+ st->codec->extradata_size = sizeX - 40;
+ st->codec->extradata = av_mallocz(st->codec->extradata_size +
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ avio_read(pb, st->codec->extradata, st->codec->extradata_size);
+ }
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR(ENOMEM);
- av_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;
- start_time = asf->hdr.preroll;
+ /* Extract palette from extradata if bpp <= 8 */
+ /* This code assumes that extradata contains only palette */
+ /* This is true for all paletted codecs implemented in libavcodec */
+ if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
+#if HAVE_BIGENDIAN
+ int i;
+ for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE) / 4; i++)
+ asf_st->palette[i] = av_bswap32(((uint32_t *)st->codec->extradata)[i]);
+#else
+ memcpy(asf_st->palette, st->codec->extradata,
+ FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
+#endif
+ asf_st->palette_changed = 1;
+ }
- asf_st->stream_language_index = 128; // invalid stream index means no language info
+ st->codec->codec_tag = tag1;
+ st->codec->codec_id = ff_codec_get_id(ff_codec_bmp_tags, tag1);
+ if (tag1 == MKTAG('D', 'V', 'R', ' ')) {
+ st->need_parsing = AVSTREAM_PARSE_FULL;
+ /* issue658 contains wrong w/h and MS even puts a fake seq header
+ * with wrong w/h in extradata while a correct one is in the stream.
+ * maximum lameness */
+ st->codec->width =
+ st->codec->height = 0;
+ av_freep(&st->codec->extradata);
+ st->codec->extradata_size = 0;
+ }
+ if (st->codec->codec_id == AV_CODEC_ID_H264)
+ st->need_parsing = AVSTREAM_PARSE_FULL_ONCE;
+ }
+ pos2 = avio_tell(pb);
+ avio_skip(pb, size - (pos2 - pos1 + 24));
- if(!(asf->hdr.flags & 0x01)) { // if we aren't streaming...
- st->duration = asf->hdr.play_time /
- (10000000 / 1000) - start_time;
- }
- get_guid(pb, &g);
-
- test_for_ext_stream_audio = 0;
- if (!guidcmp(&g, &ff_asf_audio_stream)) {
- type = AVMEDIA_TYPE_AUDIO;
- } else if (!guidcmp(&g, &ff_asf_video_stream)) {
- type = AVMEDIA_TYPE_VIDEO;
- } else if (!guidcmp(&g, &ff_asf_jfif_media)) {
- type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_id = CODEC_ID_MJPEG;
- } else if (!guidcmp(&g, &ff_asf_command_stream)) {
- type = AVMEDIA_TYPE_DATA;
- } else if (!guidcmp(&g, &ff_asf_ext_stream_embed_stream_header)) {
- test_for_ext_stream_audio = 1;
- type = AVMEDIA_TYPE_UNKNOWN;
- } else {
- return -1;
- }
- 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 */
- // mapping of asf ID to AV stream ID;
- asf->asfid2avid[st->id] = s->nb_streams - 1;
-
- get_le32(pb);
-
- if (test_for_ext_stream_audio) {
- get_guid(pb, &g);
- if (!guidcmp(&g, &ff_asf_ext_stream_audio_stream)) {
- type = AVMEDIA_TYPE_AUDIO;
- is_dvr_ms_audio=1;
- get_guid(pb, &g);
- get_le32(pb);
- get_le32(pb);
- get_le32(pb);
- get_guid(pb, &g);
- get_le32(pb);
- }
- }
+ return 0;
+}
- st->codec->codec_type = type;
- if (type == AVMEDIA_TYPE_AUDIO) {
- ff_get_wav_header(pb, st->codec, type_specific_size);
- if (is_dvr_ms_audio) {
- // codec_id and codec_tag are unreliable in dvr_ms
- // files. Set them later by probing stream.
- st->codec->codec_id = CODEC_ID_PROBE;
- st->codec->codec_tag = 0;
- }
- if (st->codec->codec_id == CODEC_ID_AAC) {
- st->need_parsing = AVSTREAM_PARSE_NONE;
- } else {
- st->need_parsing = AVSTREAM_PARSE_FULL;
- }
- /* We have to init the frame size at some point .... */
- pos2 = url_ftell(pb);
- if (gsize >= (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
- }
- //printf("Descrambling: ps:%d cs:%d ds:%d s:%d sd:%d\n",
- // asf_st->ds_packet_size, asf_st->ds_chunk_size,
- // asf_st->ds_data_size, asf_st->ds_span, asf_st->ds_silence_data);
- if (asf_st->ds_span > 1) {
- if (!asf_st->ds_chunk_size
- || (asf_st->ds_packet_size/asf_st->ds_chunk_size <= 1)
- || asf_st->ds_packet_size % asf_st->ds_chunk_size)
- asf_st->ds_span = 0; // disable descrambling
- }
- switch (st->codec->codec_id) {
- case CODEC_ID_MP3:
- st->codec->frame_size = MPA_FRAME_SIZE;
- break;
- case CODEC_ID_PCM_S16LE:
- case CODEC_ID_PCM_S16BE:
- case CODEC_ID_PCM_U16LE:
- case CODEC_ID_PCM_U16BE:
- case CODEC_ID_PCM_S8:
- case CODEC_ID_PCM_U8:
- case CODEC_ID_PCM_ALAW:
- case CODEC_ID_PCM_MULAW:
- st->codec->frame_size = 1;
- break;
- default:
- /* This is probably wrong, but it prevents a crash later */
- st->codec->frame_size = 1;
- break;
- }
- } else if (type == AVMEDIA_TYPE_VIDEO &&
- gsize - (url_ftell(pb) - pos1 + 24) >= 51) {
- get_le32(pb);
- get_le32(pb);
- get_byte(pb);
- size = get_le16(pb); /* size */
- sizeX= get_le32(pb); /* size */
- st->codec->width = get_le32(pb);
- st->codec->height = get_le32(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);
-// av_log(s, AV_LOG_DEBUG, "size:%d tsize:%d sizeX:%d\n", size, total_size, sizeX);
- size= sizeX;
- if (size > 40) {
- st->codec->extradata_size = size - 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);
- }
+static int asf_read_ext_stream_properties(AVFormatContext *s, int64_t size)
+{
+ ASFContext *asf = s->priv_data;
+ AVIOContext *pb = s->pb;
+ ff_asf_guid g;
+ int ext_len, payload_ext_ct, stream_ct, i;
+ uint32_t leak_rate, stream_num;
+ unsigned int stream_languageid_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;
+
+ 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++) {
+ avio_rl16(pb);
+ ext_len = avio_rl16(pb);
+ avio_skip(pb, ext_len);
+ }
- /* 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 */
- if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
- st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl));
-#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]);
-#else
- memcpy(st->codec->palctrl->palette, st->codec->extradata,
- FFMIN(st->codec->extradata_size, AVPALETTE_SIZE));
-#endif
- st->codec->palctrl->palette_changed = 1;
- }
+ for (i = 0; i < payload_ext_ct; i++) {
+ ff_get_guid(pb, &g);
+ avio_skip(pb, 2);
+ ext_len = avio_rl32(pb);
+ avio_skip(pb, ext_len);
+ }
- st->codec->codec_tag = tag1;
- st->codec->codec_id = ff_codec_get_id(ff_codec_bmp_tags, tag1);
- if(tag1 == MKTAG('D', 'V', 'R', ' ')){
- st->need_parsing = AVSTREAM_PARSE_FULL;
- // issue658 containse wrong w/h and MS even puts a fake seq header with wrong w/h in extradata while a correct one is in te stream. maximum lameness
- st->codec->width =
- st->codec->height = 0;
- av_freep(&st->codec->extradata);
- st->codec->extradata_size=0;
- }
- if(st->codec->codec_id == CODEC_ID_H264)
- st->need_parsing = AVSTREAM_PARSE_FULL_ONCE;
- }
- pos2 = url_ftell(pb);
- url_fskip(pb, gsize - (pos2 - pos1 + 24));
- } else if (!guidcmp(&g, &ff_asf_comment_header)) {
- 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);
- 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);
- } else if (!guidcmp(&g, &stream_bitrate_guid)) {
- int stream_count = get_le16(pb);
- int j;
-
-// av_log(s, AV_LOG_ERROR, "stream bitrate properties\n");
-// av_log(s, AV_LOG_ERROR, "streams %d\n", streams);
- for(j = 0; j < stream_count; j++) {
- int flags, bitrate, stream_id;
-
- flags= get_le16(pb);
- bitrate= get_le32(pb);
- stream_id= (flags & 0x7f);
-// av_log(s, AV_LOG_ERROR, "flags: 0x%x stream id %d, bitrate %d\n", flags, stream_id, bitrate);
- asf->stream_bitrates[stream_id]= bitrate;
- }
- } else if (!guidcmp(&g, &ff_asf_language_guid)) {
- int j;
- int stream_count = get_le16(pb);
- for(j = 0; j < stream_count; j++) {
- char lang[6];
- unsigned int lang_len = get_byte(pb);
- get_str16_nolen(pb, lang_len, lang, sizeof(lang));
- if (j < 128)
- av_strlcpy(asf->stream_languages[j], lang, sizeof(*asf->stream_languages));
- }
- } else if (!guidcmp(&g, &ff_asf_extended_content_header)) {
- int desc_count, i;
-
- desc_count = get_le16(pb);
- for(i=0;i<desc_count;i++) {
- int name_len,value_type,value_len;
- char name[1024];
-
- name_len = get_le16(pb);
- if (name_len%2) // must be even, broken lavf versions wrote len-1
- name_len += 1;
- get_str16_nolen(pb, name_len, name, sizeof(name));
- value_type = get_le16(pb);
- value_len = get_le16(pb);
- if (!value_type && value_len%2)
- value_len += 1;
- /**
- * My sample has that stream set to 0 maybe that mean the container.
- * Asf stream count start at 1. I am using 0 to the container value since it's unused
- */
- if (!strcmp(name, "AspectRatioX")){
- dar[0].num= get_value(s->pb, value_type);
- } else if(!strcmp(name, "AspectRatioY")){
- dar[0].den= get_value(s->pb, value_type);
- } else
- get_tag(s, name, value_type, value_len);
- }
- } else if (!guidcmp(&g, &ff_asf_metadata_header)) {
- int n, stream_num, name_len, value_len, value_type, value_num;
- n = get_le16(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);
-
- get_str16_nolen(pb, name_len, name, sizeof(name));
-//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);
-
- if(stream_num<128){
- if (!strcmp(name, "AspectRatioX")) dar[stream_num].num= value_num;
- else if(!strcmp(name, "AspectRatioY")) dar[stream_num].den= value_num;
- }
- }
- } else if (!guidcmp(&g, &ff_asf_ext_stream_header)) {
- int ext_len, payload_ext_ct, stream_ct;
- uint32_t ext_d, 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
- 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
-
- if (stream_num < 128)
- bitrate[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);
- }
+ return 0;
+}
- for (i=0; i<payload_ext_ct; i++){
- get_guid(pb, &g);
- ext_d=get_le16(pb);
- ext_len=get_le32(pb);
- url_fseek(pb, ext_len, SEEK_CUR);
- }
+static int asf_read_content_desc(AVFormatContext *s, int64_t size)
+{
+ AVIOContext *pb = s->pb;
+ int len1, len2, len3, len4, len5;
+
+ 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, 32);
+ get_tag(s, "author", 0, len2, 32);
+ get_tag(s, "copyright", 0, len3, 32);
+ get_tag(s, "comment", 0, len4, 32);
+ avio_skip(pb, len5);
+
+ return 0;
+}
+
+static int asf_read_ext_content_desc(AVFormatContext *s, int64_t size)
+{
+ AVIOContext *pb = s->pb;
+ ASFContext *asf = s->priv_data;
+ int desc_count, i, ret;
+
+ desc_count = avio_rl16(pb);
+ for (i = 0; i < desc_count; i++) {
+ int name_len, value_type, value_len;
+ char name[1024];
+
+ 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)
+ 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;
+ /* My sample has that stream set to 0 maybe that mean the container.
+ * ASF stream count starts at 1. I am using 0 to the container value
+ * since it's unused. */
+ if (!strcmp(name, "AspectRatioX"))
+ asf->dar[0].num = get_value(s->pb, value_type, 32);
+ else if (!strcmp(name, "AspectRatioY"))
+ asf->dar[0].den = get_value(s->pb, value_type, 32);
+ else
+ get_tag(s, name, value_type, value_len, 32);
+ }
+
+ return 0;
+}
+
+static int asf_read_language_list(AVFormatContext *s, int64_t size)
+{
+ AVIOContext *pb = s->pb;
+ ASFContext *asf = s->priv_data;
+ int j, ret;
+ int stream_count = avio_rl16(pb);
+ for (j = 0; j < stream_count; j++) {
+ char lang[6];
+ unsigned int lang_len = avio_r8(pb);
+ if ((ret = avio_get_str16le(pb, lang_len, lang,
+ sizeof(lang))) < lang_len)
+ avio_skip(pb, lang_len - ret);
+ if (j < 128)
+ av_strlcpy(asf->stream_languages[j], lang,
+ sizeof(*asf->stream_languages));
+ }
+
+ return 0;
+}
+
+static int asf_read_metadata(AVFormatContext *s, int64_t size)
+{
+ AVIOContext *pb = s->pb;
+ ASFContext *asf = s->priv_data;
+ int n, stream_num, name_len, value_len;
+ int ret, i;
+ n = avio_rl16(pb);
+
+ for (i = 0; i < n; i++) {
+ char name[1024];
+ int value_type;
+
+ avio_rl16(pb); // lang_list_index
+ stream_num = avio_rl16(pb);
+ name_len = avio_rl16(pb);
+ value_type = avio_rl16(pb); /* value_type */
+ value_len = avio_rl32(pb);
+
+ if ((ret = avio_get_str16le(pb, name_len, name, sizeof(name))) < name_len)
+ avio_skip(pb, name_len - ret);
+ av_dlog(s, "%d stream %d name_len %2d type %d len %4d <%s>\n",
+ i, stream_num, name_len, value_type, value_len, name);
+
+ if (!strcmp(name, "AspectRatioX")){
+ int aspect_x = get_value(s->pb, value_type, 16);
+ if(stream_num < 128)
+ asf->dar[stream_num].num = aspect_x;
+ } else if(!strcmp(name, "AspectRatioY")){
+ int aspect_y = get_value(s->pb, value_type, 16);
+ if(stream_num < 128)
+ asf->dar[stream_num].den = aspect_y;
+ } else {
+ get_tag(s, name, value_type, value_len, 16);
+ }
+ }
+
+ return 0;
+}
+
+static int asf_read_marker(AVFormatContext *s, int64_t size)
+{
+ AVIOContext *pb = s->pb;
+ int i, count, name_len, ret;
+ char name[1024];
+
+ 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++)
+ avio_r8(pb); // skip the name
+
+ for (i = 0; i < count; i++) {
+ int64_t pres_time;
+ int name_len;
+
+ 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)
+ avio_skip(pb, name_len - ret);
+ avpriv_new_chapter(s, i, (AVRational) { 1, 10000000 }, pres_time,
+ AV_NOPTS_VALUE, name);
+ }
+
+ return 0;
+}
+
+static int asf_read_header(AVFormatContext *s)
+{
+ ASFContext *asf = s->priv_data;
+ ff_asf_guid g;
+ AVIOContext *pb = s->pb;
+ int i;
+ int64_t gsize;
+
+ ff_get_guid(pb, &g);
+ if (ff_guidcmp(&g, &ff_asf_header))
+ return -1;
+ avio_rl64(pb);
+ avio_rl32(pb);
+ avio_r8(pb);
+ avio_r8(pb);
+ memset(&asf->asfid2avid, -1, sizeof(asf->asfid2avid));
+ for (;;) {
+ uint64_t gpos = avio_tell(pb);
+ ff_get_guid(pb, &g);
+ gsize = avio_rl64(pb);
+ print_guid(&g);
+ if (!ff_guidcmp(&g, &ff_asf_data_header)) {
+ 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;
+ else
+ asf->data_object_size = (uint64_t)-1;
+ break;
+ }
+ if (gsize < 24)
+ return -1;
+ if (!ff_guidcmp(&g, &ff_asf_file_header)) {
+ int ret = asf_read_file_properties(s, gsize);
+ if (ret < 0)
+ return ret;
+ } else if (!ff_guidcmp(&g, &ff_asf_stream_header)) {
+ asf_read_stream_properties(s, gsize);
+ } else if (!ff_guidcmp(&g, &ff_asf_comment_header)) {
+ asf_read_content_desc(s, gsize);
+ } else if (!ff_guidcmp(&g, &ff_asf_language_guid)) {
+ asf_read_language_list(s, gsize);
+ } else if (!ff_guidcmp(&g, &ff_asf_extended_content_header)) {
+ asf_read_ext_content_desc(s, gsize);
+ } else if (!ff_guidcmp(&g, &ff_asf_metadata_header)) {
+ asf_read_metadata(s, gsize);
+ } else if (!ff_guidcmp(&g, &ff_asf_metadata_library_header)) {
+ asf_read_metadata(s, gsize);
+ } else if (!ff_guidcmp(&g, &ff_asf_ext_stream_header)) {
+ asf_read_ext_stream_properties(s, gsize);
// there could be a optional stream properties object to follow
// if so the next iteration will pick it up
continue;
- } else if (!guidcmp(&g, &ff_asf_head1_guid)) {
- int v1, v2;
- get_guid(pb, &g);
- v1 = get_le32(pb);
- v2 = get_le16(pb);
+ } else if (!ff_guidcmp(&g, &ff_asf_head1_guid)) {
+ ff_get_guid(pb, &g);
+ avio_skip(pb, 6);
continue;
- } else if (!guidcmp(&g, &ff_asf_marker_header)) {
- int i, count, name_len;
- 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
- for(i=0;i<name_len;i++){
- get_byte(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
- get_str16_nolen(pb, name_len * 2, name, sizeof(name));
- ff_new_chapter(s, i, (AVRational){1, 10000000}, pres_time, AV_NOPTS_VALUE, name );
- }
-#if 0
- } else if (!guidcmp(&g, &ff_asf_codec_comment_header)) {
- int len, v1, n, num;
- char str[256], *q;
- char tag[16];
-
- get_guid(pb, &g);
- print_guid(&g);
-
- n = get_le32(pb);
- for(i=0;i<n;i++) {
- num = get_le16(pb); /* stream number */
- get_str16(pb, str, sizeof(str));
- get_str16(pb, str, sizeof(str));
- len = get_le16(pb);
- q = tag;
- while (len > 0) {
- v1 = get_byte(pb);
- if ((q - tag) < sizeof(tag) - 1)
- *q++ = v1;
- len--;
- }
- *q = '\0';
- }
-#endif
- } else if (url_feof(pb)) {
+ } else if (!ff_guidcmp(&g, &ff_asf_marker_header)) {
+ asf_read_marker(s, gsize);
+ } else if (pb->eof_reached) {
return -1;
} else {
if (!s->keylen) {
- if (!guidcmp(&g, &ff_asf_content_encryption)) {
- av_log(s, AV_LOG_WARNING, "DRM protected stream detected, decoding will likely fail!\n");
- } else if (!guidcmp(&g, &ff_asf_ext_content_encryption)) {
- av_log(s, AV_LOG_WARNING, "Ext DRM protected stream detected, decoding will likely fail!\n");
- } else if (!guidcmp(&g, &ff_asf_digital_signature)) {
- av_log(s, AV_LOG_WARNING, "Digital signature detected, decoding will likely fail!\n");
+ if (!ff_guidcmp(&g, &ff_asf_content_encryption)) {
+ av_log(s, AV_LOG_WARNING,
+ "DRM protected stream detected, decoding will likely fail!\n");
+ } else if (!ff_guidcmp(&g, &ff_asf_ext_content_encryption)) {
+ av_log(s, AV_LOG_WARNING,
+ "Ext DRM protected stream detected, decoding will likely fail!\n");
+ } else if (!ff_guidcmp(&g, &ff_asf_digital_signature)) {
+ av_log(s, AV_LOG_WARNING,
+ "Digital signature detected, decoding will likely fail!\n");
}
}
}
- 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=%"PRId64"\n",
+ avio_tell(pb) - gpos, gsize);
+ avio_seek(pb, gpos + gsize, SEEK_SET);
}
- get_guid(pb, &g);
- get_le64(pb);
- get_byte(pb);
- get_byte(pb);
- if (url_feof(pb))
+ ff_get_guid(pb, &g);
+ 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;
-
- for(i=0; i<128; i++){
- int stream_num= asf->asfid2avid[i];
- if(stream_num>=0){
+ for (i = 0; i < 128; i++) {
+ int stream_num = asf->asfid2avid[i];
+ if (stream_num >= 0) {
AVStream *st = s->streams[stream_num];
if (!st->codec->bit_rate)
- st->codec->bit_rate = bitrate[i];
- if (dar[i].num > 0 && dar[i].den > 0){
+ st->codec->bit_rate = asf->stream_bitrates[i];
+ if (asf->dar[i].num > 0 && asf->dar[i].den > 0) {
av_reduce(&st->sample_aspect_ratio.num,
&st->sample_aspect_ratio.den,
- dar[i].num, dar[i].den, INT_MAX);
- } else if ((dar[0].num > 0) && (dar[0].den > 0) && (st->codec->codec_type==AVMEDIA_TYPE_VIDEO)) // Use ASF container value if the stream doesn't AR set.
+ asf->dar[i].num, asf->dar[i].den, INT_MAX);
+ } else if ((asf->dar[0].num > 0) && (asf->dar[0].den > 0) &&
+ // Use ASF container value if the stream doesn't set AR.
+ (st->codec->codec_type == AVMEDIA_TYPE_VIDEO))
av_reduce(&st->sample_aspect_ratio.num,
&st->sample_aspect_ratio.den,
- dar[0].num, dar[0].den, INT_MAX);
+ asf->dar[0].num, asf->dar[0].den, INT_MAX);
-//av_log(s, AV_LOG_INFO, "i=%d, st->codec->codec_type:%d, dar %d:%d sar=%d:%d\n", i, st->codec->codec_type, dar[i].num, dar[i].den, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
+ av_dlog(s, "i=%d, st->codec->codec_type:%d, asf->dar %d:%d sar=%d:%d\n",
+ i, st->codec->codec_type, asf->dar[i].num, asf->dar[i].den,
+ st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
// copy and convert language codes to the frontend
if (asf->streams[i].stream_language_index < 128) {
const char *rfc1766 = asf->stream_languages[asf->streams[i].stream_language_index];
if (rfc1766 && strlen(rfc1766) > 1) {
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);
+ 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);
}
}
}
return 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; \
- default: var = defval; break; \
+#define DO_2BITS(bits, var, defval) \
+ switch (bits & 3) { \
+ 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;
int c, d, e, off;
// 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;
-
- c=d=e=-1;
- while(off-- > 0){
- c=d; d=e;
- e= get_byte(pb);
- if(c == 0x82 && !d && !e)
+ off = 32768;
+ if (asf->no_resync_search)
+ off = 3;
+ else if (s->packet_size > 0)
+ off = (avio_tell(pb) - s->data_offset) % s->packet_size + 3;
+
+ c = d = e = -1;
+ while (off-- > 0) {
+ c = d;
+ d = e;
+ e = avio_r8(pb);
+ if (c == 0x82 && !d && !e)
break;
}
if (c != 0x82) {
- /**
- * This code allows handling of -EAGAIN at packet boundaries (i.e.
+ /* This code allows handling of -EAGAIN at packet boundaries (i.e.
* if the packet sync code above triggers -EAGAIN). This does not
* imply complete -EAGAIN handling support at random positions in
- * the stream.
- */
- if (url_ferror(pb) == AVERROR(EAGAIN))
+ * the stream. */
+ 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);
- rsize+=3;
- }else{
- url_fseek(pb, -1, SEEK_CUR); //FIXME
+ c = avio_r8(pb);
+ d = avio_r8(pb);
+ rsize += 3;
+ } else if (!pb->eof_reached) {
+ avio_seek(pb, -1, SEEK_CUR); // FIXME
}
asf->packet_flags = c;
DO_2BITS(asf->packet_flags >> 1, padsize, 0); // sequence ignored
DO_2BITS(asf->packet_flags >> 3, padsize, 0); // padding length
- //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));
+ // 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, 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));
+ if (padsize >= packet_length) {
+ 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;
+ asf->packet_segments = 1;
asf->packet_segsizetype = 0x80;
}
+ if (rsize > packet_length - padsize) {
+ asf->packet_size_left = 0;
+ av_log(s, AV_LOG_ERROR,
+ "invalid packet header length %d for pktlen %d-%d at %"PRId64"\n",
+ rsize, packet_length, padsize, avio_tell(pb));
+ return -1;
+ }
asf->packet_size_left = packet_length - padsize - rsize;
if (packet_length < asf->hdr.min_pktsize)
padsize += asf->hdr.min_pktsize - packet_length;
asf->packet_padsize = padsize;
- dprintf(s, "packet: size=%d padsize=%d left=%d\n", s->packet_size, asf->packet_padsize, asf->packet_size_left);
+ av_dlog(s, "packet: size=%d padsize=%d left=%d\n",
+ s->packet_size, asf->packet_padsize, asf->packet_size_left);
return 0;
}
*
* @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 rsize = 1;
+ int num = avio_r8(pb);
+ int64_t ts0;
asf->packet_segments--;
asf->packet_key_frame = num >> 7;
- asf->stream_index = asf->asfid2avid[num & 0x7f];
+ asf->stream_index = asf->asfid2avid[num & 0x7f];
// sequence should be ignored!
DO_2BITS(asf->packet_property >> 4, asf->packet_seq, 0);
DO_2BITS(asf->packet_property >> 2, asf->packet_frag_offset, 0);
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);
+ av_dlog(asf, "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);
- if(asf->packet_obj_size >= (1<<24) || asf->packet_obj_size <= 0){
+ 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
- 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, "\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);
- 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);
+ asf->packet_frag_timestamp = avio_rl32(pb); // timestamp
+ if (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
+ avio_skip(pb, asf->packet_replic_size - 8);
rsize += asf->packet_replic_size; // FIXME - check validity
- } else if (asf->packet_replic_size==1){
+ } else if (asf->packet_replic_size == 1) {
// multipacket - frag_offset is beginning timestamp
- asf->packet_time_start = asf->packet_frag_offset;
- asf->packet_frag_offset = 0;
+ asf->packet_time_start = asf->packet_frag_offset;
+ 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);
+ } else if (asf->packet_replic_size != 0) {
+ av_log(s, AV_LOG_ERROR, "unexpected packet_replic_size of %d\n",
+ asf->packet_replic_size);
return -1;
}
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);
}
if (asf->packet_replic_size == 1) {
asf->packet_multi_size = asf->packet_frag_size;
return -1;
}
asf->packet_size_left -= rsize;
- //printf("___objsize____ %d %d rs:%d\n", asf->packet_obj_size, asf->packet_frag_offset, rsize);
return 0;
}
* @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;
+ 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) {
+
+ if (asf->packet_size_left < FRAME_HEADER_SIZE ||
+ asf->packet_segments < 1) {
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));
- assert(ret>=0);
+
+ 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 */
+ return AVERROR_EOF; /* Do not exceed the size of the data object */
return 1;
}
if (asf->packet_time_start == 0) {
- if(asf_read_frame_header(s, pb) < 0){
- asf->packet_segments= 0;
+ if (asf_read_frame_header(s, pb) < 0) {
+ asf->packet_segments = 0;
continue;
}
- if (asf->stream_index < 0
- || s->streams[asf->stream_index]->discard >= AVDISCARD_ALL
- || (!asf->packet_key_frame && s->streams[asf->stream_index]->discard >= AVDISCARD_NONKEY)
- ) {
+ if (asf->stream_index < 0 ||
+ s->streams[asf->stream_index]->discard >= AVDISCARD_ALL ||
+ (!asf->packet_key_frame &&
+ s->streams[asf->stream_index]->discard >= AVDISCARD_NONKEY)) {
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);
+ if (asf->stream_index < 0)
+ av_log(s, AV_LOG_ERROR, "ff asf skip %d (unknown stream)\n",
+ asf->packet_frag_size);
continue;
}
asf->asf_st = s->streams[asf->stream_index]->priv_data;
}
asf_st = asf->asf_st;
+ av_assert0(asf_st);
if (asf->packet_replic_size == 1) {
// 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_time_start += asf->packet_time_delta;
+ 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)
- {
+ 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;
}
asf->packet_multi_size -= asf->packet_obj_size;
- //printf("COMPRESS size %d %d %d ms:%d\n", asf->packet_obj_size, asf->packet_frag_timestamp, asf->packet_size_left, asf->packet_multi_size);
}
- if( /*asf->packet_frag_size == asf->packet_obj_size*/
- asf_st->frag_offset + asf->packet_frag_size <= asf_st->pkt.size
- && asf_st->frag_offset + asf->packet_frag_size > asf->packet_obj_size){
+ if (asf_st->frag_offset + asf->packet_frag_size <= asf_st->pkt.size &&
+ asf_st->frag_offset + asf->packet_frag_size > asf->packet_obj_size) {
av_log(s, AV_LOG_INFO, "ignoring invalid packet_obj_size (%d %d %d %d)\n",
- asf_st->frag_offset, asf->packet_frag_size,
- asf->packet_obj_size, asf_st->pkt.size);
- asf->packet_obj_size= asf_st->pkt.size;
+ asf_st->frag_offset, asf->packet_frag_size,
+ asf->packet_obj_size, asf_st->pkt.size);
+ asf->packet_obj_size = asf_st->pkt.size;
}
- if ( asf_st->pkt.size != asf->packet_obj_size
- || asf_st->frag_offset + asf->packet_frag_size > asf_st->pkt.size) { //FIXME is this condition sufficient?
- if(asf_st->pkt.data){
- av_log(s, AV_LOG_INFO, "freeing incomplete packet size %d, new %d\n", asf_st->pkt.size, asf->packet_obj_size);
+ if (asf_st->pkt.size != asf->packet_obj_size ||
+ // FIXME is this condition sufficient?
+ asf_st->frag_offset + asf->packet_frag_size > asf_st->pkt.size) {
+ if (asf_st->pkt.data) {
+ av_log(s, AV_LOG_INFO,
+ "freeing incomplete packet size %d, new %d\n",
+ asf_st->pkt.size, asf->packet_obj_size);
asf_st->frag_offset = 0;
av_free_packet(&asf_st->pkt);
}
/* 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->seq = asf->packet_seq;
+ 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;
-//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);
+ 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;
+ }
+ }
+ av_dlog(asf, "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);
if (s->streams[asf->stream_index]->codec->codec_type == AVMEDIA_TYPE_AUDIO)
asf->packet_key_frame = 1;
if (asf->packet_key_frame)
}
/* read data */
- //printf("READ PACKET s:%d os:%d o:%d,%d l:%d DATA:%p\n",
- // s->packet_size, asf_st->pkt.size, asf->packet_frag_offset,
- // asf_st->frag_offset, asf->packet_frag_size, asf_st->pkt.data);
+ av_dlog(asf, "READ PACKET s:%d os:%d o:%d,%d l:%d DATA:%p\n",
+ s->packet_size, asf_st->pkt.size, asf->packet_frag_offset,
+ asf_st->frag_offset, asf->packet_frag_size, asf_st->pkt.data);
asf->packet_size_left -= asf->packet_frag_size;
if (asf->packet_size_left < 0)
continue;
- if( asf->packet_frag_offset >= asf_st->pkt.size
- || asf->packet_frag_size > asf_st->pkt.size - asf->packet_frag_offset){
- av_log(s, AV_LOG_ERROR, "packet fragment position invalid %u,%u not in %u\n",
- asf->packet_frag_offset, asf->packet_frag_size, asf_st->pkt.size);
+ if (asf->packet_frag_offset >= asf_st->pkt.size ||
+ asf->packet_frag_size > asf_st->pkt.size - asf->packet_frag_offset) {
+ av_log(s, AV_LOG_ERROR,
+ "packet fragment position invalid %u,%u not in %u\n",
+ asf->packet_frag_offset, asf->packet_frag_size,
+ asf_st->pkt.size);
continue;
}
- ret = get_buffer(pb, asf_st->pkt.data + asf->packet_frag_offset,
- asf->packet_frag_size);
- if (ret != asf->packet_frag_size)
- return ret >= 0 ? AVERROR_EOF : ret;
+ 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)
+ return ret < 0 ? ret : AVERROR_EOF;
+
+ if (asf_st->ds_span > 1) {
+ // scrambling, we can either drop it completely or fill the remainder
+ // TODO: should we fill the whole packet instead of just the current
+ // fragment?
+ memset(asf_st->pkt.data + asf->packet_frag_offset + ret, 0,
+ asf->packet_frag_size - ret);
+ ret = asf->packet_frag_size;
+ } else {
+ // no scrambling, so we can return partial packets
+ av_shrink_packet(&asf_st->pkt, asf->packet_frag_offset + ret);
+ }
+ }
if (s->key && s->keylen == 20)
ff_asfcrypt_dec(s->key, asf_st->pkt.data + asf->packet_frag_offset,
- asf->packet_frag_size);
- asf_st->frag_offset += asf->packet_frag_size;
+ ret);
+ asf_st->frag_offset += ret;
/* test if whole packet is read */
if (asf_st->frag_offset == asf_st->pkt.size) {
- //workaround for macroshit radio DVR-MS files
- if( s->streams[asf->stream_index]->codec->codec_id == CODEC_ID_MPEG2VIDEO
- && asf_st->pkt.size > 100){
+ // workaround for macroshit radio DVR-MS files
+ if (s->streams[asf->stream_index]->codec->codec_id == AV_CODEC_ID_MPEG2VIDEO &&
+ asf_st->pkt.size > 100) {
int i;
- for(i=0; i<asf_st->pkt.size && !asf_st->pkt.data[i]; i++);
- if(i == asf_st->pkt.size){
+ for (i = 0; i < asf_st->pkt.size && !asf_st->pkt.data[i]; i++)
+ ;
+ if (i == asf_st->pkt.size) {
av_log(s, AV_LOG_DEBUG, "discarding ms fart\n");
asf_st->frag_offset = 0;
av_free_packet(&asf_st->pkt);
/* return packet */
if (asf_st->ds_span > 1) {
- if(asf_st->pkt.size != asf_st->ds_packet_size * asf_st->ds_span){
- av_log(s, AV_LOG_ERROR, "pkt.size != ds_packet_size * ds_span (%d %d %d)\n", asf_st->pkt.size, asf_st->ds_packet_size, asf_st->ds_span);
- }else{
- /* packet descrambling */
- uint8_t *newdata = av_malloc(asf_st->pkt.size + FF_INPUT_BUFFER_PADDING_SIZE);
- if (newdata) {
- int offset = 0;
- memset(newdata + asf_st->pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
- while (offset < asf_st->pkt.size) {
- int off = offset / asf_st->ds_chunk_size;
- int row = off / asf_st->ds_span;
- int col = off % asf_st->ds_span;
- int idx = row + col * asf_st->ds_packet_size / asf_st->ds_chunk_size;
- //printf("off:%d row:%d col:%d idx:%d\n", off, row, col, idx);
-
- assert(offset + asf_st->ds_chunk_size <= asf_st->pkt.size);
- assert(idx+1 <= asf_st->pkt.size / asf_st->ds_chunk_size);
- memcpy(newdata + offset,
- asf_st->pkt.data + idx * asf_st->ds_chunk_size,
- asf_st->ds_chunk_size);
- offset += asf_st->ds_chunk_size;
+ if (asf_st->pkt.size != asf_st->ds_packet_size * asf_st->ds_span) {
+ av_log(s, AV_LOG_ERROR,
+ "pkt.size != ds_packet_size * ds_span (%d %d %d)\n",
+ asf_st->pkt.size, asf_st->ds_packet_size,
+ asf_st->ds_span);
+ } else {
+ /* packet descrambling */
+ AVBufferRef *buf = av_buffer_alloc(asf_st->pkt.size +
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ if (buf) {
+ uint8_t *newdata = buf->data;
+ int offset = 0;
+ memset(newdata + asf_st->pkt.size, 0,
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ while (offset < asf_st->pkt.size) {
+ int off = offset / asf_st->ds_chunk_size;
+ int row = off / asf_st->ds_span;
+ int col = off % asf_st->ds_span;
+ int idx = row + col * asf_st->ds_packet_size / asf_st->ds_chunk_size;
+ assert(offset + asf_st->ds_chunk_size <= asf_st->pkt.size);
+ assert(idx + 1 <= asf_st->pkt.size / asf_st->ds_chunk_size);
+ memcpy(newdata + offset,
+ asf_st->pkt.data + idx * asf_st->ds_chunk_size,
+ asf_st->ds_chunk_size);
+ offset += asf_st->ds_chunk_size;
+ }
+ av_buffer_unref(&asf_st->pkt.buf);
+ asf_st->pkt.buf = buf;
+ asf_st->pkt.data = buf->data;
}
- av_free(asf_st->pkt.data);
- asf_st->pkt.data = newdata;
}
- }
}
- asf_st->frag_offset = 0;
- *pkt= asf_st->pkt;
- //printf("packet %d %d\n", asf_st->pkt.size, asf->packet_frag_size);
- asf_st->pkt.size = 0;
- asf_st->pkt.data = 0;
+ asf_st->frag_offset = 0;
+ *pkt = asf_st->pkt;
+#if FF_API_DESTRUCT_PACKET
+ asf_st->pkt.destruct = NULL;
+#endif
+ asf_st->pkt.buf = 0;
+ asf_st->pkt.size = 0;
+ asf_st->pkt.data = 0;
+ asf_st->pkt.side_data_elems = 0;
+ asf_st->pkt.side_data = NULL;
break; // packet completed
}
}
if ((ret = ff_asf_parse_packet(s, s->pb, pkt)) <= 0)
return ret;
if ((ret = ff_asf_get_packet(s, s->pb)) < 0)
- assert(asf->packet_size_left < FRAME_HEADER_SIZE || asf->packet_segments < 1);
+ 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
ASFStream *asf_st;
int i;
- asf->packet_nb_frames = 0;
- asf->packet_size_left = 0;
- asf->packet_segments = 0;
- asf->packet_flags = 0;
- asf->packet_property = 0;
- asf->packet_timestamp = 0;
- asf->packet_segsizetype = 0;
- asf->packet_segments = 0;
- asf->packet_seq = 0;
- asf->packet_replic_size = 0;
- asf->packet_key_frame = 0;
- asf->packet_padsize = 0;
- asf->packet_frag_offset = 0;
- asf->packet_frag_size = 0;
+ asf->packet_size_left = 0;
+ asf->packet_segments = 0;
+ asf->packet_flags = 0;
+ asf->packet_property = 0;
+ asf->packet_timestamp = 0;
+ asf->packet_segsizetype = 0;
+ asf->packet_segments = 0;
+ asf->packet_seq = 0;
+ asf->packet_replic_size = 0;
+ asf->packet_key_frame = 0;
+ asf->packet_padsize = 0;
+ asf->packet_frag_offset = 0;
+ asf->packet_frag_size = 0;
asf->packet_frag_timestamp = 0;
- asf->packet_multi_size = 0;
- asf->packet_obj_size = 0;
- asf->packet_time_delta = 0;
- asf->packet_time_start = 0;
-
- for(i=0; i<s->nb_streams; i++){
- asf_st= s->streams[i]->priv_data;
+ asf->packet_multi_size = 0;
+ asf->packet_obj_size = 0;
+ asf->packet_time_delta = 0;
+ asf->packet_time_start = 0;
+
+ for (i = 0; i < s->nb_streams; i++) {
+ asf_st = s->streams[i]->priv_data;
+ if (!asf_st)
+ continue;
av_free_packet(&asf_st->pkt);
- asf_st->frag_offset=0;
- asf_st->seq=0;
+ asf_st->frag_offset = 0;
+ asf_st->seq = 0;
}
- asf->asf_st= NULL;
+ asf->asf_st = NULL;
}
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;
}
-static int64_t asf_read_pts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
+static int64_t asf_read_pts(AVFormatContext *s, int stream_index,
+ int64_t *ppos, int64_t pos_limit)
{
AVPacket pkt1, *pkt = &pkt1;
ASFStream *asf_st;
int64_t pts;
- int64_t pos= *ppos;
+ int64_t pos = *ppos;
int i;
int64_t start_pos[ASF_MAX_STREAMS];
- for(i=0; i<s->nb_streams; i++){
- start_pos[i]= pos;
- }
+ for (i = 0; i < s->nb_streams; i++)
+ start_pos[i] = pos;
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);
+ pos = (pos + s->packet_size - 1 - s->data_offset) /
+ s->packet_size * s->packet_size +
+ s->data_offset;
+ *ppos = pos;
+ avio_seek(s->pb, pos, SEEK_SET);
-//printf("asf_read_pts\n");
asf_reset_header(s);
- for(;;){
- if (av_read_frame(s, pkt) < 0){
+ for (;;) {
+ 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){
- i= pkt->stream_index;
+ if (pkt->flags & AV_PKT_FLAG_KEY) {
+ i = pkt->stream_index;
- asf_st= s->streams[i]->priv_data;
+ asf_st = s->streams[i]->priv_data;
+ av_assert0(asf_st);
// assert((asf_st->packet_pos - s->data_offset) % s->packet_size == 0);
- pos= asf_st->packet_pos;
+ pos = asf_st->packet_pos;
- av_add_index_entry(s->streams[i], pos, pts, pkt->size, pos - start_pos[i] + 1, AVINDEX_KEYFRAME);
- start_pos[i]= asf_st->packet_pos + 1;
+ av_add_index_entry(s->streams[i], pos, pts, pkt->size,
+ pos - start_pos[i] + 1, AVINDEX_KEYFRAME);
+ start_pos[i] = asf_st->packet_pos + 1;
- if(pkt->stream_index == stream_index)
- break;
+ if (pkt->stream_index == stream_index)
+ break;
}
}
- *ppos= pos;
-//printf("found keyframe at %"PRId64" stream %d stamp:%"PRId64"\n", *ppos, stream_index, pts);
-
+ *ppos = pos;
return pts;
}
static void asf_build_simple_index(AVFormatContext *s, int stream_index)
{
ff_asf_guid g;
- ASFContext *asf = s->priv_data;
- int64_t current_pos= url_ftell(s->pb);
+ ASFContext *asf = s->priv_data;
+ int64_t current_pos = avio_tell(s->pb);
int i;
- url_fseek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET);
- get_guid(s->pb, &g);
+ 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 (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);
+ * skip them until the simple index object is reached */
+ while (ff_guidcmp(&g, &index_guid)) {
+ 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);
- get_guid(s->pb, &g);
+ avio_skip(s->pb, gsize - 24);
+ ff_get_guid(s->pb, &g);
}
{
- int64_t itime, last_pos=-1;
+ int64_t itime, last_pos = -1;
int pct, ict;
- int64_t av_unused gsize= get_le64(s->pb);
- get_guid(s->pb, &g);
- itime=get_le64(s->pb);
- pct=get_le32(s->pb);
- ict=get_le32(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);
- int64_t pos = s->data_offset + s->packet_size*(int64_t)pktnum;
- int64_t index_pts= av_rescale(itime, i, 10000);
-
- if(pos != last_pos){
- av_log(s, AV_LOG_DEBUG, "pktnum:%d, pktct:%d\n", pktnum, pktct);
- av_add_index_entry(s->streams[stream_index], pos, index_pts, s->packet_size, 0, AVINDEX_KEYFRAME);
- last_pos=pos;
+ int64_t av_unused gsize = avio_rl64(s->pb);
+ ff_get_guid(s->pb, &g);
+ 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 = 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 = FFMAX(av_rescale(itime, i, 10000) - asf->hdr.preroll, 0);
+
+ if (pos != last_pos) {
+ 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;
+ asf->index_read = ict > 0;
}
- 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)
+static int asf_read_seek(AVFormatContext *s, int stream_index,
+ int64_t pts, int flags)
{
ASFContext *asf = s->priv_data;
- AVStream *st = s->streams[stream_index];
+ AVStream *st = s->streams[stream_index];
int64_t pos;
int index;
return -1;
/* Try using the protocol's read_seek if available */
- if(s->pb) {
- int ret = av_url_read_fseek(s->pb, stream_index, pts, flags);
- if(ret >= 0)
+ if (s->pb) {
+ int ret = avio_seek_time(s->pb, stream_index, pts, flags);
+ if (ret >= 0)
asf_reset_header(s);
if (ret != AVERROR(ENOSYS))
return ret;
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{
- index= av_index_search_timestamp(st, pts, flags);
- if(index<0)
- return -1;
+ if ((asf->index_read && st->index_entries)) {
+ index = av_index_search_timestamp(st, pts, flags);
+ 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 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,
+AVInputFormat ff_asf_demuxer = {
+ .name = "asf",
+ .long_name = NULL_IF_CONFIG_SMALL("ASF (Advanced / Active Streaming 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,
+ .priv_class = &asf_class,
};
projects / ffmpeg / blobdiff