X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fasf.c;h=ec34b5010d334cedb9d8bde258a07f7e14956fc7;hb=e73d26bbd65f1ac5fc73ef3fd24cab1bed8ba2e2;hp=161aa58039db0fa8c087108997c6ca6ba21ce256;hpb=4e15cc8ba3246935c1788bc2579a0ace0e8840ab;p=ffmpeg diff --git a/libavformat/asf.c b/libavformat/asf.c index 161aa58039d..ec34b5010d3 100644 --- a/libavformat/asf.c +++ b/libavformat/asf.c @@ -1,937 +1,167 @@ /* - * ASF compatible demuxer - * Copyright (c) 2000, 2001 Fabrice Bellard. + * 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 */ -#include "avformat.h" -#include "riff.h" -#include "mpegaudio.h" -#include "asf.h" -#include "common.h" - -#undef NDEBUG -#include -#define FRAME_HEADER_SIZE 17 -// Fix Me! FRAME_HEADER_SIZE may be different. +#include "asf.h" -static const GUID index_guid = { - 0x90, 0x08, 0x00, 0x33, 0xb1, 0xe5, 0xcf, 0x11, 0x89, 0xf4, 0x00, 0xa0, 0xc9, 0x03, 0x49, 0xcb +const ff_asf_guid ff_asf_header = { + 0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C }; -/**********************************/ -/* decoding */ - -//#define DEBUG - -#ifdef DEBUG -#define PRINT_IF_GUID(g,cmp) \ -if (!memcmp(g, &cmp, sizeof(GUID))) \ - printf("(GUID: %s) ", #cmp) - -static void print_guid(const GUID *g) -{ - int i; - PRINT_IF_GUID(g, asf_header); - else PRINT_IF_GUID(g, file_header); - else PRINT_IF_GUID(g, stream_header); - else PRINT_IF_GUID(g, audio_stream); - else PRINT_IF_GUID(g, audio_conceal_none); - else PRINT_IF_GUID(g, video_stream); - else PRINT_IF_GUID(g, video_conceal_none); - else PRINT_IF_GUID(g, command_stream); - else PRINT_IF_GUID(g, comment_header); - else PRINT_IF_GUID(g, codec_comment_header); - else PRINT_IF_GUID(g, codec_comment1_header); - else PRINT_IF_GUID(g, data_header); - else PRINT_IF_GUID(g, index_guid); - else PRINT_IF_GUID(g, head1_guid); - else PRINT_IF_GUID(g, head2_guid); - else PRINT_IF_GUID(g, my_guid); - else PRINT_IF_GUID(g, ext_stream_header); - else PRINT_IF_GUID(g, extended_content_header); - else PRINT_IF_GUID(g, ext_stream_embed_stream_header); - else PRINT_IF_GUID(g, ext_stream_audio_stream); - else - printf("(GUID: unknown) "); - for(i=0;i<16;i++) - printf(" 0x%02x,", (*g)[i]); - printf("}\n"); -} -#undef PRINT_IF_GUID -#endif - -static void get_guid(ByteIOContext *s, GUID *g) -{ - assert(sizeof(*g) == 16); - get_buffer(s, g, sizeof(*g)); -} - -#if 0 -static void get_str16(ByteIOContext *pb, char *buf, int buf_size) -{ - 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'; -} -#endif - -static void get_str16_nolen(ByteIOContext *pb, int len, char *buf, int buf_size) -{ - char* q = buf; - len /= 2; - while (len--) { - uint8_t tmp; - PUT_UTF8(get_le16(pb), tmp, if (q - buf < buf_size - 1) *q++ = tmp;) - } - *q = '\0'; -} - -static int asf_probe(AVProbeData *pd) -{ - /* check file header */ - if (pd->buf_size <= 32) - return 0; - - if (!memcmp(pd->buf, &asf_header, sizeof(GUID))) - return AVPROBE_SCORE_MAX; - else - return 0; -} - -static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap) -{ - ASFContext *asf = s->priv_data; - GUID g; - ByteIOContext *pb = &s->pb; - AVStream *st; - ASFStream *asf_st; - int size, i; - int64_t gsize; - - get_guid(pb, &g); - if (memcmp(&g, &asf_header, sizeof(GUID))) - goto fail; - get_le64(pb); - get_le32(pb); - get_byte(pb); - get_byte(pb); - memset(&asf->asfid2avid, -1, sizeof(asf->asfid2avid)); - for(;;) { - get_guid(pb, &g); - gsize = get_le64(pb); -#ifdef DEBUG - printf("%08"PRIx64": ", url_ftell(pb) - 24); - print_guid(&g); - printf(" size=0x%"PRIx64"\n", gsize); -#endif - if (gsize < 24) - goto fail; - if (!memcmp(&g, &file_header, sizeof(GUID))) { - 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.send_time = get_le64(pb); - asf->hdr.play_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->packet_size = asf->hdr.max_pktsize; - } else if (!memcmp(&g, &stream_header, sizeof(GUID))) { - int type, type_specific_size, sizeX; - uint64_t total_size; - unsigned int tag1; - int64_t pos1, pos2; - int test_for_ext_stream_audio; - - pos1 = url_ftell(pb); - - st = av_new_stream(s, 0); - if (!st) - goto fail; - av_set_pts_info(st, 32, 1, 1000); /* 32 bit pts in ms */ - asf_st = av_mallocz(sizeof(ASFStream)); - if (!asf_st) - goto fail; - st->priv_data = asf_st; - st->start_time = asf->hdr.preroll; - if(!(asf->hdr.flags & 0x01)) { // if we aren't streaming... - st->duration = asf->hdr.send_time / - (10000000 / 1000) - st->start_time; - } - get_guid(pb, &g); - - test_for_ext_stream_audio = 0; - if (!memcmp(&g, &audio_stream, sizeof(GUID))) { - type = CODEC_TYPE_AUDIO; - } else if (!memcmp(&g, &video_stream, sizeof(GUID))) { - type = CODEC_TYPE_VIDEO; - } else if (!memcmp(&g, &command_stream, sizeof(GUID))) { - type = CODEC_TYPE_UNKNOWN; - } else if (!memcmp(&g, &ext_stream_embed_stream_header, sizeof(GUID))) { - test_for_ext_stream_audio = 1; - type = CODEC_TYPE_UNKNOWN; - } else { - goto fail; - } - 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 (!memcmp(&g, &ext_stream_audio_stream, sizeof(GUID))) { - type = CODEC_TYPE_AUDIO; - 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) { - get_wav_header(pb, st->codec, type_specific_size); - st->need_parsing = 1; - /* 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_sample = get_le16(pb); /* depth */ - tag1 = get_le32(pb); - url_fskip(pb, 20); -// av_log(NULL, 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_sample <= 8)) { - st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl)); -#ifdef WORDS_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 = codec_get_id(codec_bmp_tags, tag1); - if(tag1 == MKTAG('D', 'V', 'R', ' ')) - st->need_parsing = 1; - } - pos2 = url_ftell(pb); - url_fskip(pb, gsize - (pos2 - pos1 + 24)); - } else if (!memcmp(&g, &data_header, sizeof(GUID))) { - 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 != (uint64_t)-1 && gsize >= 24) { - asf->data_object_size = gsize - 24; - } else { - asf->data_object_size = (uint64_t)-1; - } - break; - } else if (!memcmp(&g, &comment_header, sizeof(GUID))) { - 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_str16_nolen(pb, len1, s->title , sizeof(s->title)); - get_str16_nolen(pb, len2, s->author , sizeof(s->author)); - get_str16_nolen(pb, len3, s->copyright, sizeof(s->copyright)); - get_str16_nolen(pb, len4, s->comment , sizeof(s->comment)); - url_fskip(pb, len5); - } else if (!memcmp(&g, &extended_content_header, sizeof(GUID))) { - int desc_count, i; - - desc_count = get_le16(pb); - for(i=0;ialbum, sizeof(s->album)); - if (!strcmp(name,"WM/Genre" )) get_str16_nolen(pb, value_len, s->genre, sizeof(s->genre)); - } - if ((value_type >= 2) && (value_type <= 5)) // boolean or DWORD or QWORD or WORD - { - if (value_type==2) value_num = get_le32(pb); - if (value_type==3) value_num = get_le32(pb); - if (value_type==4) value_num = get_le64(pb); - if (value_type==5) value_num = get_le16(pb); - if (!strcmp(name,"WM/Track" )) s->track = value_num + 1; - if (!strcmp(name,"WM/TrackNumber")) s->track = value_num; - } - } - } else if (!memcmp(&g, &ext_stream_header, sizeof(GUID))) { - int ext_len, payload_ext_ct, stream_ct; - uint32_t ext_d; - int64_t pos_ex_st; - pos_ex_st = url_ftell(pb); - - get_le64(pb); - get_le64(pb); - get_le32(pb); - get_le32(pb); - get_le32(pb); - get_le32(pb); - get_le32(pb); - get_le32(pb); - get_le32(pb); - get_le32(pb); - get_le16(pb); - get_le16(pb); - get_le64(pb); - stream_ct = get_le16(pb); - payload_ext_ct = get_le16(pb); - - for (i=0; i 0) { - v1 = get_byte(pb); - if ((q - tag) < sizeof(tag) - 1) - *q++ = v1; - len--; - } - *q = '\0'; - } -#endif - } else if (url_feof(pb)) { - goto fail; - } else { - url_fseek(pb, gsize - 24, SEEK_CUR); - } - } - get_guid(pb, &g); - get_le64(pb); - get_byte(pb); - get_byte(pb); - if (url_feof(pb)) - goto fail; - asf->data_offset = url_ftell(pb); - asf->packet_size_left = 0; - - return 0; - - fail: - for(i=0;inb_streams;i++) { - AVStream *st = s->streams[i]; - if (st) { - av_free(st->priv_data); - av_free(st->codec->extradata); - } - av_free(st); - } - return -1; -} - -#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; \ - } - -static int asf_get_packet(AVFormatContext *s) -{ - ASFContext *asf = s->priv_data; - ByteIOContext *pb = &s->pb; - uint32_t packet_length, padsize; - int rsize = 9; - int c; - - assert((url_ftell(&s->pb) - s->data_offset) % asf->packet_size == 0); - - c = get_byte(pb); - if (c != 0x82) { - if (!url_feof(pb)) - av_log(s, AV_LOG_ERROR, "ff asf bad header %x at:%"PRId64"\n", c, url_ftell(pb)); - } - if ((c & 0x0f) == 2) { // always true for now - if (get_le16(pb) != 0) { - if (!url_feof(pb)) - av_log(s, AV_LOG_ERROR, "ff asf bad non zero\n"); - return AVERROR_IO; - } - rsize+=2; -/* }else{ - if (!url_feof(pb)) - printf("ff asf bad header %x at:%"PRId64"\n", c, url_ftell(pb)); - return AVERROR_IO;*/ - } - - asf->packet_flags = get_byte(pb); - asf->packet_property = get_byte(pb); - - DO_2BITS(asf->packet_flags >> 5, packet_length, asf->packet_size); - 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 >= (1U<<29)){ - av_log(s, AV_LOG_ERROR, "invalid packet_length %d at:%"PRId64"\n", packet_length, url_ftell(pb)); - return 0; // FIXME this should be -1 - } - if(padsize >= (1U<<29)){ - av_log(s, AV_LOG_ERROR, "invalid padsize %d at:%"PRId64"\n", padsize, url_ftell(pb)); - return 0; // FIXME this should be -1 - } - - asf->packet_timestamp = get_le32(pb); - get_le16(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_segments = asf->packet_segsizetype & 0x3f; - } else { - asf->packet_segments = 1; - asf->packet_segsizetype = 0x80; - } - 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; -#ifdef DEBUG - printf("packet: size=%d padsize=%d left=%d\n", asf->packet_size, asf->packet_padsize, asf->packet_size_left); -#endif - return 0; -} - -static int asf_read_packet(AVFormatContext *s, AVPacket *pkt) -{ - ASFContext *asf = s->priv_data; - ASFStream *asf_st = 0; - ByteIOContext *pb = &s->pb; - //static int pc = 0; - for (;;) { - int rsize = 0; - 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)); - if((url_ftell(&s->pb) + ret - s->data_offset) % asf->packet_size) - ret += asf->packet_size - ((url_ftell(&s->pb) + ret - s->data_offset) % asf->packet_size); - assert(ret>=0); - /* fail safe */ - url_fskip(pb, ret); - asf->packet_pos= url_ftell(&s->pb); - if (asf->data_object_size != (uint64_t)-1 && - (asf->packet_pos - asf->data_object_offset >= asf->data_object_size)) - return AVERROR_IO; /* Do not exceed the size of the data object */ - ret = asf_get_packet(s); - //printf("READ ASF PACKET %d r:%d c:%d\n", ret, asf->packet_size_left, pc++); - if (ret < 0 || url_feof(pb)) - return AVERROR_IO; - asf->packet_time_start = 0; - continue; - } - if (asf->packet_time_start == 0) { - /* read frame header */ - int num = get_byte(pb); - asf->packet_segments--; - rsize++; - asf->packet_key_frame = num >> 7; - 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); - 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){ - av_log(s, AV_LOG_ERROR, "packet_obj_size invalid\n"); - continue; - } - asf->packet_frag_timestamp = get_le32(pb); // timestamp - url_fskip(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 begining timestamp - 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); - 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); - continue; - } - if (asf->packet_flags & 0x01) { - DO_2BITS(asf->packet_segsizetype >> 6, asf->packet_frag_size, 0); // 0 is illegal -#undef DO_2BITS - //printf("Fragsize %d\n", asf->packet_frag_size); - } else { - 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; - if (asf->packet_multi_size > asf->packet_size_left) { - asf->packet_segments = 0; - continue; - } - } - asf->packet_size_left -= rsize; - //printf("___objsize____ %d %d rs:%d\n", asf->packet_obj_size, asf->packet_frag_offset, rsize); - - 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); - asf->packet_size_left -= asf->packet_frag_size; - if(asf->stream_index < 0) - av_log(s, AV_LOG_ERROR, "ff asf skip %d %d\n", asf->packet_frag_size, num & 0x7f); - continue; - } - asf->asf_st = s->streams[asf->stream_index]->priv_data; - } - asf_st = asf->asf_st; - - if ((asf->packet_frag_offset != asf_st->frag_offset - || (asf->packet_frag_offset - && asf->packet_seq != asf_st->seq)) // seq should be ignored - ) { - /* cannot continue current packet: free it */ - // FIXME better check if packet was already allocated - av_log(s, AV_LOG_INFO, "ff asf parser skips: %d - %d o:%d - %d %d %d fl:%d\n", - asf_st->pkt.size, - asf->packet_obj_size, - asf->packet_frag_offset, asf_st->frag_offset, - asf->packet_seq, asf_st->seq, asf->packet_frag_size); - if (asf_st->pkt.size) - av_free_packet(&asf_st->pkt); - asf_st->frag_offset = 0; - if (asf->packet_frag_offset != 0) { - url_fskip(pb, asf->packet_frag_size); - av_log(s, AV_LOG_INFO, "ff asf parser skipping %db\n", asf->packet_frag_size); - asf->packet_size_left -= asf->packet_frag_size; - continue; - } - } - if (asf->packet_replic_size == 1) { - // frag_offset is here used as the begining 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_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); - 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_st->frag_offset == 0) { - /* new packet */ - av_new_packet(&asf_st->pkt, asf->packet_obj_size); - asf_st->seq = asf->packet_seq; - asf_st->pkt.pts = asf->packet_frag_timestamp; - 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 & PKT_FLAG_KEY, -//s->streams[asf->stream_index]->codec->codec_type == CODEC_TYPE_AUDIO, asf->packet_obj_size); - if (s->streams[asf->stream_index]->codec->codec_type == CODEC_TYPE_AUDIO) - asf->packet_key_frame = 1; - if (asf->packet_key_frame) - asf_st->pkt.flags |= PKT_FLAG_KEY; - } - - /* read data */ - //printf("READ PACKET s:%d os:%d o:%d,%d l:%d DATA:%p\n", - // asf->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; - get_buffer(pb, asf_st->pkt.data + asf->packet_frag_offset, - asf->packet_frag_size); - asf_st->frag_offset += asf->packet_frag_size; - /* test if whole packet is read */ - if (asf_st->frag_offset == asf_st->pkt.size) { - /* 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\n"); - }else{ - /* packet descrambling */ - uint8_t *newdata = av_malloc(asf_st->pkt.size); - if (newdata) { - int offset = 0; - 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; - } - 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; - break; // packet completed - } - } - return 0; -} - -static int asf_read_close(AVFormatContext *s) -{ - int i; - - for(i=0;inb_streams;i++) { - AVStream *st = s->streams[i]; - av_free(st->priv_data); - av_free(st->codec->palctrl); - } - return 0; -} - -// Added to support seeking after packets have been read -// If information is not reset, read_packet fails due to -// leftover information from previous reads -static void asf_reset_header(AVFormatContext *s) -{ - ASFContext *asf = s->priv_data; - ASFStream *asf_st; - int i; +const ff_asf_guid ff_asf_file_header = { + 0xA1, 0xDC, 0xAB, 0x8C, 0x47, 0xA9, 0xCF, 0x11, 0x8E, 0xE4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65 +}; - 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_frag_timestamp = 0; - asf->packet_multi_size = 0; - asf->packet_obj_size = 0; - asf->packet_time_delta = 0; - asf->packet_time_start = 0; +const ff_asf_guid ff_asf_stream_header = { + 0x91, 0x07, 0xDC, 0xB7, 0xB7, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65 +}; - for(i=0; inb_streams; i++){ - asf_st= s->streams[i]->priv_data; - av_free_packet(&asf_st->pkt); - asf_st->frag_offset=0; - asf_st->seq=0; - } - asf->asf_st= NULL; -} +const ff_asf_guid ff_asf_ext_stream_header = { + 0xCB, 0xA5, 0xE6, 0x14, 0x72, 0xC6, 0x32, 0x43, 0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A +}; -static int64_t asf_read_pts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit) -{ - ASFContext *asf = s->priv_data; - AVPacket pkt1, *pkt = &pkt1; - ASFStream *asf_st; - int64_t pts; - int64_t pos= *ppos; - int i; - int64_t start_pos[s->nb_streams]; +const ff_asf_guid ff_asf_audio_stream = { + 0x40, 0x9E, 0x69, 0xF8, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B +}; - for(i=0; inb_streams; i++){ - start_pos[i]= pos; - } +const ff_asf_guid ff_asf_audio_conceal_none = { + // 0x40, 0xa4, 0xf1, 0x49, 0x4ece, 0x11d0, 0xa3, 0xac, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6 + // New value lifted from avifile + 0x00, 0x57, 0xfb, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b +}; - pos= (pos+asf->packet_size-1-s->data_offset)/asf->packet_size*asf->packet_size+ s->data_offset; - *ppos= pos; - url_fseek(&s->pb, pos, SEEK_SET); +const ff_asf_guid ff_asf_audio_conceal_spread = { + 0x50, 0xCD, 0xC3, 0xBF, 0x8F, 0x61, 0xCF, 0x11, 0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20 +}; -//printf("asf_read_pts\n"); - asf_reset_header(s); - for(;;){ - if (av_read_frame(s, pkt) < 0){ - av_log(s, AV_LOG_INFO, "seek failed\n"); - return AV_NOPTS_VALUE; - } +const ff_asf_guid ff_asf_video_stream = { + 0xC0, 0xEF, 0x19, 0xBC, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B +}; - pts= pkt->pts; +const ff_asf_guid ff_asf_jfif_media = { + 0x00, 0xE1, 0x1B, 0xB6, 0x4E, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B +}; - av_free_packet(pkt); - if(pkt->flags&PKT_FLAG_KEY){ - i= pkt->stream_index; +const ff_asf_guid ff_asf_video_conceal_none = { + 0x00, 0x57, 0xFB, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B +}; - asf_st= s->streams[i]->priv_data; +const ff_asf_guid ff_asf_command_stream = { + 0xC0, 0xCF, 0xDA, 0x59, 0xE6, 0x59, 0xD0, 0x11, 0xA3, 0xAC, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 +}; - assert((asf_st->packet_pos - s->data_offset) % asf->packet_size == 0); - pos= asf_st->packet_pos; +const ff_asf_guid ff_asf_comment_header = { + 0x33, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c +}; - 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; +const ff_asf_guid ff_asf_codec_comment_header = { + 0x40, 0x52, 0xD1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 +}; +const ff_asf_guid ff_asf_codec_comment1_header = { + 0x41, 0x52, 0xd1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xa3, 0xa4, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6 +}; - if(pkt->stream_index == stream_index) - break; - } - } +const ff_asf_guid ff_asf_data_header = { + 0x36, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c +}; - *ppos= pos; -//printf("found keyframe at %"PRId64" stream %d stamp:%"PRId64"\n", *ppos, stream_index, pts); +const ff_asf_guid ff_asf_head1_guid = { + 0xb5, 0x03, 0xbf, 0x5f, 0x2E, 0xA9, 0xCF, 0x11, 0x8e, 0xe3, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65 +}; - return pts; -} +const ff_asf_guid ff_asf_head2_guid = { + 0x11, 0xd2, 0xd3, 0xab, 0xBA, 0xA9, 0xCF, 0x11, 0x8e, 0xe6, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65 +}; -static void asf_build_simple_index(AVFormatContext *s, int stream_index) -{ - GUID g; - ASFContext *asf = s->priv_data; - int64_t gsize, itime; - int64_t pos, current_pos, index_pts; - int i; - int pct,ict; +const ff_asf_guid ff_asf_extended_content_header = { + 0x40, 0xA4, 0xD0, 0xD2, 0x07, 0xE3, 0xD2, 0x11, 0x97, 0xF0, 0x00, 0xA0, 0xC9, 0x5E, 0xA8, 0x50 +}; - current_pos = url_ftell(&s->pb); +const ff_asf_guid ff_asf_simple_index_header = { + 0x90, 0x08, 0x00, 0x33, 0xB1, 0xE5, 0xCF, 0x11, 0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB +}; - url_fseek(&s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET); - get_guid(&s->pb, &g); - if (!memcmp(&g, &index_guid, sizeof(GUID))) { - 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(NULL, AV_LOG_DEBUG, "itime:0x%"PRIx64", pct:%d, ict:%d\n",itime,pct,ict); +const ff_asf_guid ff_asf_ext_stream_embed_stream_header = { + 0xe2, 0x65, 0xfb, 0x3a, 0xEF, 0x47, 0xF2, 0x40, 0xac, 0x2c, 0x70, 0xa9, 0x0d, 0x71, 0xd3, 0x43 +}; - for (i=0;ipb); - int pktct =get_le16(&s->pb); - av_log(NULL, AV_LOG_DEBUG, "pktnum:%d, pktct:%d\n", pktnum, pktct); +const ff_asf_guid ff_asf_ext_stream_audio_stream = { + 0x9d, 0x8c, 0x17, 0x31, 0xE1, 0x03, 0x28, 0x45, 0xb5, 0x82, 0x3d, 0xf9, 0xdb, 0x22, 0xf5, 0x03 +}; - pos=s->data_offset + asf->packet_size*(int64_t)pktnum; - index_pts=av_rescale(itime, i, 10000); +const ff_asf_guid ff_asf_metadata_header = { + 0xea, 0xcb, 0xf8, 0xc5, 0xaf, 0x5b, 0x77, 0x48, 0x84, 0x67, 0xaa, 0x8c, 0x44, 0xfa, 0x4c, 0xca +}; - av_add_index_entry(s->streams[stream_index], pos, index_pts, asf->packet_size, 0, AVINDEX_KEYFRAME); - } - asf->index_read= 1; - } - url_fseek(&s->pb, current_pos, SEEK_SET); -} +const ff_asf_guid ff_asf_metadata_library_header = { + 0x94, 0x1c, 0x23, 0x44, 0x98, 0x94, 0xd1, 0x49, 0xa1, 0x41, 0x1d, 0x13, 0x4e, 0x45, 0x70, 0x54 +}; -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]; - int64_t pos; - int index; +const ff_asf_guid ff_asf_marker_header = { + 0x01, 0xCD, 0x87, 0xF4, 0x51, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65 +}; - if (asf->packet_size <= 0) - return -1; +const ff_asf_guid ff_asf_reserved_4 = { + 0x20, 0xdb, 0xfe, 0x4c, 0xf6, 0x75, 0xCF, 0x11, 0x9c, 0x0f, 0x00, 0xa0, 0xc9, 0x03, 0x49, 0xcb +}; - if (!asf->index_read) - asf_build_simple_index(s, stream_index); +/* I am not a number !!! This GUID is the one found on the PC used to + * generate the stream */ +const ff_asf_guid ff_asf_my_guid = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; - 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; +const ff_asf_guid ff_asf_language_guid = { + 0xa9, 0x46, 0x43, 0x7c, 0xe0, 0xef, 0xfc, 0x4b, 0xb2, 0x29, 0x39, 0x3e, 0xde, 0x41, 0x5c, 0x85 +}; - /* find the position */ - pos = st->index_entries[index].pos; - pts = st->index_entries[index].timestamp; +const ff_asf_guid ff_asf_content_encryption = { + 0xfb, 0xb3, 0x11, 0x22, 0x23, 0xbd, 0xd2, 0x11, 0xb4, 0xb7, 0x00, 0xa0, 0xc9, 0x55, 0xfc, 0x6e +}; - // 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); - // } +const ff_asf_guid ff_asf_ext_content_encryption = { + 0x14, 0xe6, 0x8a, 0x29, 0x22, 0x26, 0x17, 0x4c, 0xb9, 0x35, 0xda, 0xe0, 0x7e, 0xe9, 0x28, 0x9c +}; - /* do the seek */ - av_log(NULL, AV_LOG_DEBUG, "SEEKTO: %"PRId64"\n", pos); - url_fseek(&s->pb, pos, SEEK_SET); - } - asf_reset_header(s); - return 0; -} +const ff_asf_guid ff_asf_digital_signature = { + 0xfc, 0xb3, 0x11, 0x22, 0x23, 0xbd, 0xd2, 0x11, 0xb4, 0xb7, 0x00, 0xa0, 0xc9, 0x55, 0xfc, 0x6e +}; -AVInputFormat asf_demuxer = { - "asf", - "asf format", - sizeof(ASFContext), - asf_probe, - asf_read_header, - asf_read_packet, - asf_read_close, - asf_read_seek, - asf_read_pts, +/* List of official tags at http://msdn.microsoft.com/en-us/library/dd743066(VS.85).aspx */ +const AVMetadataConv ff_asf_metadata_conv[] = { + { "WM/AlbumArtist", "album_artist" }, + { "WM/AlbumTitle", "album" }, + { "Author", "artist" }, + { "Description", "comment" }, + { "WM/Composer", "composer" }, + { "WM/EncodedBy", "encoded_by" }, + { "WM/EncodingSettings", "encoder" }, + { "WM/Genre", "genre" }, + { "WM/Language", "language" }, + { "WM/OriginalFilename", "filename" }, + { "WM/PartOfSet", "disc" }, + { "WM/Publisher", "publisher" }, + { "WM/Tool", "encoder" }, + { "WM/TrackNumber", "track" }, + { "WM/Track", "track" }, + { "WM/MediaStationCallSign", "service_provider" }, + { "WM/MediaStationName", "service_name" }, +// { "Year" , "date" }, TODO: conversion year<->date + { 0 } };