/*
- * Copyright (c) 2000, 2001 Fabrice Bellard.
+ * Copyright (c) 2000, 2001 Fabrice Bellard
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of Libav.
+ *
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+#ifndef AVFORMAT_ASF_H
+#define AVFORMAT_ASF_H
+
+#include <stdint.h>
+#include "avformat.h"
+#include "metadata.h"
+#include "riff.h"
+
#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
+
+typedef struct ASFMainHeader {
+ ff_asf_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 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 - subtract 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; /**< bandwidth 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 },
-};
+typedef struct ASFIndex {
+ uint32_t packet_number;
+ uint16_t packet_count;
+ uint64_t send_time;
+ uint64_t offset;
+} ASFIndex;
+
+extern const ff_asf_guid ff_asf_header;
+extern const ff_asf_guid ff_asf_file_header;
+extern const ff_asf_guid ff_asf_stream_header;
+extern const ff_asf_guid ff_asf_ext_stream_header;
+extern const ff_asf_guid ff_asf_audio_stream;
+extern const ff_asf_guid ff_asf_audio_conceal_none;
+extern const ff_asf_guid ff_asf_audio_conceal_spread;
+extern const ff_asf_guid ff_asf_video_stream;
+extern const ff_asf_guid ff_asf_jfif_media;
+extern const ff_asf_guid ff_asf_video_conceal_none;
+extern const ff_asf_guid ff_asf_command_stream;
+extern const ff_asf_guid ff_asf_comment_header;
+extern const ff_asf_guid ff_asf_codec_comment_header;
+extern const ff_asf_guid ff_asf_codec_comment1_header;
+extern const ff_asf_guid ff_asf_data_header;
+extern const ff_asf_guid ff_asf_head1_guid;
+extern const ff_asf_guid ff_asf_head2_guid;
+extern const ff_asf_guid ff_asf_extended_content_header;
+extern const ff_asf_guid ff_asf_simple_index_header;
+extern const ff_asf_guid ff_asf_ext_stream_embed_stream_header;
+extern const ff_asf_guid ff_asf_ext_stream_audio_stream;
+extern const ff_asf_guid ff_asf_metadata_header;
+extern const ff_asf_guid ff_asf_metadata_library_header;
+extern const ff_asf_guid ff_asf_marker_header;
+extern const ff_asf_guid ff_asf_reserved_4;
+extern const ff_asf_guid ff_asf_my_guid;
+extern const ff_asf_guid ff_asf_language_guid;
+extern const ff_asf_guid ff_asf_content_encryption;
+extern const ff_asf_guid ff_asf_ext_content_encryption;
+extern const ff_asf_guid ff_asf_digital_signature;
+
+extern const AVMetadataConv ff_asf_metadata_conv[];
+
+#define ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT 0x80 //1000 0000
+
+
+// ASF data packet structure
+// =========================
+//
+//
+// -----------------------------------
+// | Error Correction Data | Optional
+// -----------------------------------
+// | Payload Parsing Information (PPI) |
+// -----------------------------------
+// | Payload Data |
+// -----------------------------------
+// | Padding Data |
+// -----------------------------------
+
+
+// PPI_FLAG - Payload parsing information flags
+#define ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT 1
+
+#define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE 0x02 //0000 0010
+#define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD 0x04 //0000 0100
+#define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD 0x06 //0000 0110
+#define ASF_PPI_MASK_SEQUENCE_FIELD_SIZE 0x06 //0000 0110
+
+#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE 0x08 //0000 1000
+#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD 0x10 //0001 0000
+#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD 0x18 //0001 1000
+#define ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE 0x18 //0001 1000
+
+#define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE 0x20 //0010 0000
+#define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD 0x40 //0100 0000
+#define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD 0x60 //0110 0000
+#define ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE 0x60 //0110 0000
+
+// PL_FLAG - Payload flags
+#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE 0x01 //0000 0001
+#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD 0x02 //0000 0010
+#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD 0x03 //0000 0011
+#define ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE 0x03 //0000 0011
+
+#define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE 0x04 //0000 0100
+#define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD 0x08 //0000 1000
+#define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD 0x0c //0000 1100
+#define ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE 0x0c //0000 1100
+
+#define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE 0x10 //0001 0000
+#define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD 0x20 //0010 0000
+#define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD 0x30 //0011 0000
+#define ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE 0x30 //0011 0000
+
+#define ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE 0x40 //0100 0000
+#define ASF_PL_MASK_STREAM_NUMBER_LENGTH_FIELD_SIZE 0xc0 //1100 0000
+
+#define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE 0x40 //0100 0000
+#define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD 0x80 //1000 0000
+#define ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE 0xc0 //1100 0000
+
+#define ASF_PL_FLAG_KEY_FRAME 0x80 //1000 0000
+
+extern AVInputFormat ff_asf_demuxer;
+
+#endif /* AVFORMAT_ASF_H */
projects / ffmpeg / blobdiff