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Diffstat (limited to 'demux/asf.h')
| -rw-r--r-- | demux/asf.h | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/demux/asf.h b/demux/asf.h new file mode 100644 index 0000000000..2886a4d752 --- /dev/null +++ b/demux/asf.h @@ -0,0 +1,251 @@ +/* + * This file is part of MPlayer. + * + * MPlayer is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MPlayer 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with MPlayer; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef MPLAYER_ASF_H +#define MPLAYER_ASF_H + +#include <sys/types.h> +#include <inttypes.h> +#include "libavutil/common.h" +#include "mpbswap.h" + +/////////////////////// +// ASF Object Header +/////////////////////// +typedef struct __attribute__((packed)) { + uint8_t guid[16]; + uint64_t size; +} ASF_obj_header_t; + +//////////////// +// ASF Header +//////////////// +typedef struct __attribute__((packed)) { + ASF_obj_header_t objh; + uint32_t cno; // number of subchunks + uint8_t v1; // unknown (0x01) + uint8_t v2; // unknown (0x02) +} ASF_header_t; + +///////////////////// +// ASF File Header +///////////////////// +typedef struct __attribute__((packed)) { + uint8_t stream_id[16]; // stream GUID + uint64_t file_size; + uint64_t creation_time; //File creation time FILETIME 8 + uint64_t num_packets; //Number of packets UINT64 8 + uint64_t play_duration; //Timestamp of the end position UINT64 8 + uint64_t send_duration; //Duration of the playback UINT64 8 + uint64_t preroll; //Time to bufferize before playing UINT64 8 + uint32_t flags; //Unknown, maybe flags ( usually contains 2 ) UINT32 4 + uint32_t min_packet_size; //Min size of the packet, in bytes UINT32 4 + uint32_t max_packet_size; //Max size of the packet UINT32 4 + uint32_t max_bitrate; //Maximum bitrate of the media (sum of all the stream) +} ASF_file_header_t; + +/////////////////////// +// ASF Stream Header +/////////////////////// +typedef struct __attribute__((packed)) { + uint8_t type[16]; // Stream type (audio/video) GUID 16 + uint8_t concealment[16]; // Audio error concealment type GUID 16 + uint64_t unk1; // Unknown, maybe reserved ( usually contains 0 ) UINT64 8 + uint32_t type_size; //Total size of type-specific data UINT32 4 + uint32_t stream_size; //Size of stream-specific data UINT32 4 + uint16_t stream_no; //Stream number UINT16 2 + uint32_t unk2; //Unknown UINT32 4 +} ASF_stream_header_t; + +/////////////////////////// +// ASF Content Description +/////////////////////////// +typedef struct __attribute__((packed)) { + uint16_t title_size; + uint16_t author_size; + uint16_t copyright_size; + uint16_t comment_size; + uint16_t rating_size; +} ASF_content_description_t; + +//////////////////////// +// ASF Segment Header +//////////////////////// +typedef struct __attribute__((packed)) { + uint8_t streamno; + uint8_t seq; + uint32_t x; + uint8_t flag; +} ASF_segmhdr_t; + +////////////////////// +// ASF Stream Chunck +////////////////////// +typedef struct __attribute__((packed)) { + uint16_t type; + uint16_t size; + uint32_t sequence_number; + uint16_t unknown; + uint16_t size_confirm; +} ASF_stream_chunck_t; + +// Definition of the stream type +#if BYTE_ORDER == BIG_ENDIAN + #define ASF_STREAMING_CLEAR 0x2443 // $C + #define ASF_STREAMING_DATA 0x2444 // $D + #define ASF_STREAMING_END_TRANS 0x2445 // $E + #define ASF_STREAMING_HEADER 0x2448 // $H +#else + #define ASF_STREAMING_CLEAR 0x4324 // $C + #define ASF_STREAMING_DATA 0x4424 // $D + #define ASF_STREAMING_END_TRANS 0x4524 // $E + #define ASF_STREAMING_HEADER 0x4824 // $H +#endif + +// Definition of the differents type of ASF streaming +typedef enum { + ASF_Unknown_e, + ASF_Live_e, + ASF_Prerecorded_e, + ASF_Redirector_e, + ASF_PlainText_e, + ASF_Authenticate_e +} ASF_StreamType_e; + +typedef struct { + ASF_StreamType_e streaming_type; + int request; + int packet_size; + int *audio_streams,n_audio,*video_streams,n_video; + int audio_id, video_id; +} asf_http_streaming_ctrl_t; + + +/* + * Some macros to swap little endian structures read from an ASF file + * into machine endian format + */ +#if BYTE_ORDER == BIG_ENDIAN +#define le2me_ASF_obj_header_t(h) { \ + (h)->size = le2me_64((h)->size); \ +} +#define le2me_ASF_header_t(h) { \ + le2me_ASF_obj_header_t(&(h)->objh); \ + (h)->cno = le2me_32((h)->cno); \ +} +#define le2me_ASF_stream_header_t(h) { \ + (h)->unk1 = le2me_64((h)->unk1); \ + (h)->type_size = le2me_32((h)->type_size); \ + (h)->stream_size = le2me_32((h)->stream_size); \ + (h)->stream_no = le2me_16((h)->stream_no); \ + (h)->unk2 = le2me_32((h)->unk2); \ +} +#define le2me_ASF_file_header_t(h) { \ + (h)->file_size = le2me_64((h)->file_size); \ + (h)->creation_time = le2me_64((h)->creation_time); \ + (h)->num_packets = le2me_64((h)->num_packets); \ + (h)->play_duration = le2me_64((h)->play_duration); \ + (h)->send_duration = le2me_64((h)->send_duration); \ + (h)->preroll = le2me_64((h)->preroll); \ + (h)->flags = le2me_32((h)->flags); \ + (h)->min_packet_size = le2me_32((h)->min_packet_size); \ + (h)->max_packet_size = le2me_32((h)->max_packet_size); \ + (h)->max_bitrate = le2me_32((h)->max_bitrate); \ +} +#define le2me_ASF_content_description_t(h) { \ + (h)->title_size = le2me_16((h)->title_size); \ + (h)->author_size = le2me_16((h)->author_size); \ + (h)->copyright_size = le2me_16((h)->copyright_size); \ + (h)->comment_size = le2me_16((h)->comment_size); \ + (h)->rating_size = le2me_16((h)->rating_size); \ +} +#define le2me_BITMAPINFOHEADER(h) { \ + (h)->biSize = le2me_32((h)->biSize); \ + (h)->biWidth = le2me_32((h)->biWidth); \ + (h)->biHeight = le2me_32((h)->biHeight); \ + (h)->biPlanes = le2me_16((h)->biPlanes); \ + (h)->biBitCount = le2me_16((h)->biBitCount); \ + (h)->biCompression = le2me_32((h)->biCompression); \ + (h)->biSizeImage = le2me_32((h)->biSizeImage); \ + (h)->biXPelsPerMeter = le2me_32((h)->biXPelsPerMeter); \ + (h)->biYPelsPerMeter = le2me_32((h)->biYPelsPerMeter); \ + (h)->biClrUsed = le2me_32((h)->biClrUsed); \ + (h)->biClrImportant = le2me_32((h)->biClrImportant); \ +} +#define le2me_WAVEFORMATEX(h) { \ + (h)->wFormatTag = le2me_16((h)->wFormatTag); \ + (h)->nChannels = le2me_16((h)->nChannels); \ + (h)->nSamplesPerSec = le2me_32((h)->nSamplesPerSec); \ + (h)->nAvgBytesPerSec = le2me_32((h)->nAvgBytesPerSec); \ + (h)->nBlockAlign = le2me_16((h)->nBlockAlign); \ + (h)->wBitsPerSample = le2me_16((h)->wBitsPerSample); \ + (h)->cbSize = le2me_16((h)->cbSize); \ +} +#define le2me_ASF_stream_chunck_t(h) { \ + (h)->size = le2me_16((h)->size); \ + (h)->sequence_number = le2me_32((h)->sequence_number); \ + (h)->unknown = le2me_16((h)->unknown); \ + (h)->size_confirm = le2me_16((h)->size_confirm); \ +} +#else +#define le2me_ASF_obj_header_t(h) /**/ +#define le2me_ASF_header_t(h) /**/ +#define le2me_ASF_stream_header_t(h) /**/ +#define le2me_ASF_file_header_t(h) /**/ +#define le2me_ASF_content_description_t(h) /**/ +#define le2me_BITMAPINFOHEADER(h) /**/ +#define le2me_WAVEFORMATEX(h) /**/ +#define le2me_ASF_stream_chunck_t(h) /**/ +#endif + +// priv struct for the demuxer +struct asf_priv { + ASF_header_t header; + unsigned char* packet; + int scrambling_h; + int scrambling_w; + int scrambling_b; + unsigned packetsize; + double packetrate; + double movielength; + int asf_is_dvr_ms; + uint32_t asf_frame_state; + int asf_frame_start_found; + double dvr_last_vid_pts; + uint64_t vid_frame_ct; + uint64_t play_duration; + uint64_t num_packets; + int new_vid_frame_seg; + int *vid_repdata_sizes; + int *aud_repdata_sizes; + int vid_repdata_count; + int aud_repdata_count; + uint64_t avg_vid_frame_time; + uint64_t last_key_payload_time; + uint64_t last_aud_pts; + uint64_t last_aud_diff; + int found_first_key_frame; + uint32_t last_vid_seq; + int vid_ext_timing_index; + int aud_ext_timing_index; + int vid_ext_frame_index; + int know_frame_time; + unsigned bps; +}; + +#endif /* MPLAYER_ASF_H */ |