split asf patch by (Konstantin Andreyev <kandreyev at bcsii dot com>)

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@2850 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/asf.h

+/*
+ * Copyright (c) 2000, 2001 Fabrice Bellard.
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#define PACKET_SIZE 3200
+#define PACKET_HEADER_SIZE 12
+#define FRAME_HEADER_SIZE 17
+
+typedef struct {
+    int num;
+    int seq;
+    /* use for reading */
+    AVPacket pkt;
+    int frag_offset;
+    int timestamp;
+    int64_t duration;
+
+    int ds_span;		/* descrambling  */
+    int ds_packet_size;
+    int ds_chunk_size;
+    int ds_data_size;
+    int ds_silence_data;
+    
+    int packet_pos;
+
+} ASFStream;
+
+typedef struct {
+    uint32_t v1;
+    uint16_t v2;
+    uint16_t v3;
+    uint8_t v4[8];
+} GUID;
+
+typedef struct {
+    GUID guid;			// generated by client computer
+    uint64_t file_size;		// in bytes
+                                // invalid if broadcasting
+    uint64_t create_time;	// time of creation, in 100-nanosecond units since 1.1.1601
+                                // invalid if broadcasting
+    uint64_t packets_count;	// how many packets are there in the file
+                                // invalid if broadcasting
+    uint64_t play_time;		// play time, in 100-nanosecond units
+                                // invalid if broadcasting
+    uint64_t send_time;		// time to send file, in 100-nanosecond units
+                                // invalid if broadcasting (could be ignored)
+    uint32_t preroll;		// timestamp of the first packet, in milliseconds
+    				// if nonzero - substract from time
+    uint32_t ignore;            // preroll is 64bit - but let's just ignore it
+    uint32_t flags;		// 0x01 - broadcast
+    				// 0x02 - seekable
+                                // rest is reserved should be 0
+    uint32_t min_pktsize;	// size of a data packet
+                                // invalid if broadcasting
+    uint32_t max_pktsize;	// shall be the same as for min_pktsize
+                                // invalid if broadcasting
+    uint32_t max_bitrate;	// bandwith of stream in bps
+    				// should be the sum of bitrates of the
+                                // individual media streams
+} ASFMainHeader;
+
+
+typedef struct {
+    int seqno;
+    int packet_size;
+    int is_streamed;
+    int asfid2avid[128];        /* conversion table from asf ID 2 AVStream ID */
+    ASFStream streams[128];	/* it's max number and it's not that big */
+    /* non streamed additonnal info */
+    int64_t nb_packets;
+    int64_t duration; /* in 100ns units */
+    /* packet filling */
+    int packet_size_left;
+    int packet_timestamp_start;
+    int packet_timestamp_end;
+    int packet_nb_frames;
+    uint8_t packet_buf[PACKET_SIZE];
+    ByteIOContext pb;
+    /* only for reading */
+    uint64_t data_offset; /* begining of the first data packet */
+
+    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;
+    int packet_frag_offset;
+    int packet_frag_size;
+    int packet_frag_timestamp;
+    int packet_multi_size;
+    int packet_obj_size;
+    int packet_time_delta;
+    int packet_time_start;
+    int packet_pos;
+
+    int stream_index;
+    ASFStream* asf_st; /* currently decoded stream */
+} ASFContext;
+
+static const GUID asf_header = {
+    0x75B22630, 0x668E, 0x11CF, { 0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C },
+};
+
+static const GUID file_header = {
+    0x8CABDCA1, 0xA947, 0x11CF, { 0x8E, 0xE4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65 },
+};
+
+static const GUID stream_header = {
+    0xB7DC0791, 0xA9B7, 0x11CF, { 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65 },
+};
+
+static const GUID audio_stream = {
+    0xF8699E40, 0x5B4D, 0x11CF, { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B },
+};
+
+static const GUID audio_conceal_none = {
+    // 0x49f1a440, 0x4ece, 0x11d0, { 0xa3, 0xac, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6 },
+    // New value lifted from avifile
+    0x20fb5700, 0x5b55, 0x11cf, { 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b },
+};
+
+static const GUID video_stream = {
+    0xBC19EFC0, 0x5B4D, 0x11CF, { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B },
+};
+
+static const GUID video_conceal_none = {
+    0x20FB5700, 0x5B55, 0x11CF, { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B },
+};
+
+
+static const GUID comment_header = {
+    0x75b22633, 0x668e, 0x11cf, { 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c },
+};
+
+static const GUID codec_comment_header = {
+    0x86D15240, 0x311D, 0x11D0, { 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 },
+};
+static const GUID codec_comment1_header = {
+    0x86d15241, 0x311d, 0x11d0, { 0xa3, 0xa4, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6 },
+};
+
+static const GUID data_header = {
+    0x75b22636, 0x668e, 0x11cf, { 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c },
+};
+
+static const GUID head1_guid = {
+    0x5fbf03b5, 0xa92e, 0x11cf, { 0x8e, 0xe3, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65 },
+};
+
+static const GUID head2_guid = {
+    0xabd3d211, 0xa9ba, 0x11cf, { 0x8e, 0xe6, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65 },
+};
+
+static const GUID extended_content_header = {
+        0xD2D0A440, 0xE307, 0x11D2, { 0x97, 0xF0, 0x00, 0xA0, 0xC9, 0x5E, 0xA8, 0x50 },
+};
+
+/* I am not a number !!! This GUID is the one found on the PC used to
+   generate the stream */
+static const GUID my_guid = {
+    0, 0, 0, { 0, 0, 0, 0, 0, 0, 0, 0 },
+};