- 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 CodecType 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;
-
- pos1 = url_ftell(pb);
-
- 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;
-
- 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;
- }
- get_guid(pb, &g);
-
- test_for_ext_stream_audio = 0;
- if (!guidcmp(&g, &ff_asf_audio_stream)) {
- type = CODEC_TYPE_AUDIO;
- } else if (!guidcmp(&g, &ff_asf_video_stream)) {
- type = CODEC_TYPE_VIDEO;
- } else if (!guidcmp(&g, &ff_asf_command_stream)) {
- type = CODEC_TYPE_DATA;
- } else if (!guidcmp(&g, &ff_asf_ext_stream_embed_stream_header)) {
- test_for_ext_stream_audio = 1;
- type = CODEC_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 = CODEC_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);
- }
- }
-
- st->codec->codec_type = type;
- if (type == CODEC_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 == CODEC_TYPE_VIDEO) {
- 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);
- }
-
- /* 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] = bswap_32(((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;
- }
-
- 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;
- }
- 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);
- get_str16_nolen(pb, name_len, name, sizeof(name));
- value_type = get_le16(pb);
- value_len = get_le16(pb);
- 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);
- }
-
- 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);
- }