diff options
author | wm4 <wm4@nowhere> | 2012-11-05 17:02:04 +0100 |
---|---|---|
committer | wm4 <wm4@nowhere> | 2012-11-12 20:06:14 +0100 |
commit | d4bdd0473d6f43132257c9fb3848d829755167a3 (patch) | |
tree | 8021c2f7da1841393c8c832105e20cd527826d6c /demux | |
parent | bd48deba77bd5582c5829d6fe73a7d2571088aba (diff) | |
download | mpv-d4bdd0473d6f43132257c9fb3848d829755167a3.tar.bz2 mpv-d4bdd0473d6f43132257c9fb3848d829755167a3.tar.xz |
Rename directories, move files (step 1 of 2) (does not compile)
Tis drops the silly lib prefixes, and attempts to organize the tree in
a more logical way. Make the top-level directory less cluttered as
well.
Renames the following directories:
libaf -> audio/filter
libao2 -> audio/out
libvo -> video/out
libmpdemux -> demux
Split libmpcodecs:
vf* -> video/filter
vd*, dec_video.* -> video/decode
mp_image*, img_format*, ... -> video/
ad*, dec_audio.* -> audio/decode
libaf/format.* is moved to audio/ - this is similar to how mp_image.*
is located in video/.
Move most top-level .c/.h files to core. (talloc.c/.h is left on top-
level, because it's external.) Park some of the more annoying files
in compat/. Some of these are relicts from the time mplayer used
ffmpeg internals.
sub/ is not split, because it's too much of a mess (subtitle code is
mixed with OSD display and rendering).
Maybe the organization of core is not ideal: it mixes playback core
(like mplayer.c) and utility helpers (like bstr.c/h). Should the need
arise, the playback core will be moved somewhere else, while core
contains all helper and common code.
Diffstat (limited to 'demux')
42 files changed, 19204 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 */ diff --git a/demux/asfguid.h b/demux/asfguid.h new file mode 100644 index 0000000000..91b2760b28 --- /dev/null +++ b/demux/asfguid.h @@ -0,0 +1,89 @@ +/* + * Copyright (C) 2001 Reimar Döffinger + * + * 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_ASFGUID_H +#define MPLAYER_ASFGUID_H + +#include <inttypes.h> +#include "libavutil/common.h" +#include "mpbswap.h" + + +#define ASF_LOAD_GUID_PREFIX(guid) AV_RL32(guid) + +#define ASF_GUID_PREFIX_audio_stream 0xF8699E40 +#define ASF_GUID_PREFIX_video_stream 0xBC19EFC0 +#define ASF_GUID_PREFIX_audio_conceal_none 0x49f1a440 +#define ASF_GUID_PREFIX_audio_conceal_interleave 0xbfc3cd50 +#define ASF_GUID_PREFIX_header 0x75B22630 +#define ASF_GUID_PREFIX_data_chunk 0x75b22636 +#define ASF_GUID_PREFIX_index_chunk 0x33000890 +#define ASF_GUID_PREFIX_stream_header 0xB7DC0791 +#define ASF_GUID_PREFIX_header_2_0 0xD6E229D1 +#define ASF_GUID_PREFIX_file_header 0x8CABDCA1 +#define ASF_GUID_PREFIX_content_desc 0x75b22633 +#define ASF_GUID_PREFIX_stream_group 0x7bf875ce +#define ASF_GUID_PREFIX_ext_audio_stream 0x31178C9D +#define ASF_GUID_PREFIX_ext_stream_embed_stream_header 0x3AFB65E2 +#define ASF_GUID_PREFIX_dvr_ms_timing_rep_data 0xFD3CC02A +#define ASF_GUID_PREFIX_dvr_ms_vid_frame_rep_data 0xDD6432CC + +/* +const char asf_audio_stream_guid[16] = {0x40, 0x9e, 0x69, 0xf8, + 0x4d, 0x5b, 0xcf, 0x11, 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b}; +const char asf_video_stream_guid[16] = {0xc0, 0xef, 0x19, 0xbc, + 0x4d, 0x5b, 0xcf, 0x11, 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b}; +*/ +static const char asf_stream_header_guid[16] = {0x91, 0x07, 0xdc, 0xb7, + 0xb7, 0xa9, 0xcf, 0x11, 0x8e, 0xe6, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65}; +static const char asf_file_header_guid[16] = {0xa1, 0xdc, 0xab, 0x8c, + 0x47, 0xa9, 0xcf, 0x11, 0x8e, 0xe4, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65}; +static const char asf_content_desc_guid[16] = {0x33, 0x26, 0xb2, 0x75, + 0x8e, 0x66, 0xcf, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c}; +static const char asf_stream_group_guid[16] = {0xce, 0x75, 0xf8, 0x7b, + 0x8d, 0x46, 0xd1, 0x11, 0x8d, 0x82, 0x00, 0x60, 0x97, 0xc9, 0xa2, 0xb2}; +static const char asf_data_chunk_guid[16] = {0x36, 0x26, 0xb2, 0x75, + 0x8e, 0x66, 0xcf, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c}; +static const char asf_ext_stream_embed_stream_header[16] = {0xe2, 0x65, 0xfb, 0x3a, + 0xef, 0x47, 0xf2, 0x40, 0xac, 0x2c, 0x70, 0xa9, 0x0d, 0x71, 0xd3, 0x43}; +static const char asf_ext_stream_audio[16] = {0x9d, 0x8c, 0x17, 0x31, + 0xe1, 0x03, 0x28, 0x45, 0xb5, 0x82, 0x3d, 0xf9, 0xdb, 0x22, 0xf5, 0x03}; +static const char asf_ext_stream_header[16] = {0xCB, 0xA5, 0xE6, 0x14, + 0x72, 0xC6, 0x32, 0x43, 0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A}; +static const char asf_metadata_header[16] = {0xea, 0xcb, 0xf8, 0xc5, + 0xaf, 0x5b, 0x77, 0x48, 0x84, 0x67, 0xaa, 0x8c, 0x44, 0xfa, 0x4c, 0xca}; +static const char asf_content_encryption[16] = {0xfb, 0xb3, 0x11, 0x22, + 0x23, 0xbd, 0xd2, 0x11, 0xb4, 0xb7, 0x00, 0xa0, 0xc9, 0x55, 0xfc, 0x6e}; +static const char asf_dvr_ms_timing_rep_data[16] = {0x2a, 0xc0, 0x3c,0xfd, + 0xdb, 0x06, 0xfa, 0x4c, 0x80, 0x1c, 0x72, 0x12, 0xd3, 0x87, 0x45, 0xe4}; +static const char asf_dvr_ms_vid_frame_rep_data[16] = {0xcc, 0x32, 0x64, 0xdd, + 0x29, 0xe2, 0xdb, 0x40, 0x80, 0xf6, 0xd2, 0x63, 0x28, 0xd2, 0x76, 0x1f}; + +static int find_asf_guid(char *buf, const char *guid, int cur_pos, int buf_len) +{ + int i; + for (i = cur_pos; i < buf_len - 19; i++) { + if (memcmp(&buf[i], guid, 16) == 0) + return i + 16 + 8; // point after guid + length + } + return -1; +} + +#endif /* MPLAYER_ASFGUID_H */ diff --git a/demux/asfheader.c b/demux/asfheader.c new file mode 100644 index 0000000000..bd775b7660 --- /dev/null +++ b/demux/asfheader.c @@ -0,0 +1,717 @@ +/* + * 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. + */ + +// .asf fileformat docs from http://divx.euro.ru + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include <libavutil/intreadwrite.h> +#include <libavutil/common.h> + +#include "config.h" +#include "mp_msg.h" + +#include "stream/stream.h" +#include "aviprint.h" +#include "demuxer.h" +#include "stheader.h" + +#include "asf.h" +#include "asfguid.h" +#include "asfheader.h" + +typedef struct { + // must be 0 for metadata record, might be non-zero for metadata lib record + uint16_t lang_list_index; + uint16_t stream_num; + uint16_t name_length; + uint16_t data_type; + uint32_t data_length; + uint16_t* name; + void* data; +} ASF_meta_record_t; + +static char* get_ucs2str(const uint16_t* inbuf, uint16_t inlen) +{ + char* outbuf = calloc(inlen, 2); + char* q; + int i; + + if (!outbuf) { + mp_tmsg(MSGT_HEADER, MSGL_ERR, "Memory allocation failed.\n"); + return NULL; + } + q = outbuf; + for (i = 0; i < inlen / 2; i++) { + uint8_t tmp; + PUT_UTF8(AV_RL16(&inbuf[i]), tmp, *q++ = tmp;) + } + return outbuf; +} + +static const char* asf_chunk_type(unsigned char* guid) { + static char tmp[60]; + char *p; + int i; + + switch(ASF_LOAD_GUID_PREFIX(guid)){ + case ASF_GUID_PREFIX_audio_stream: + return "guid_audio_stream"; + case ASF_GUID_PREFIX_ext_audio_stream: + return "guid_ext_audio_stream"; + case ASF_GUID_PREFIX_ext_stream_embed_stream_header: + return "guid_ext_stream_embed_stream_header"; + case ASF_GUID_PREFIX_video_stream: + return "guid_video_stream"; + case ASF_GUID_PREFIX_audio_conceal_none: + return "guid_audio_conceal_none"; + case ASF_GUID_PREFIX_audio_conceal_interleave: + return "guid_audio_conceal_interleave"; + case ASF_GUID_PREFIX_header: + return "guid_header"; + case ASF_GUID_PREFIX_data_chunk: + return "guid_data_chunk"; + case ASF_GUID_PREFIX_index_chunk: + return "guid_index_chunk"; + case ASF_GUID_PREFIX_stream_header: + return "guid_stream_header"; + case ASF_GUID_PREFIX_header_2_0: + return "guid_header_2_0"; + case ASF_GUID_PREFIX_file_header: + return "guid_file_header"; + case ASF_GUID_PREFIX_content_desc: + return "guid_content_desc"; + case ASF_GUID_PREFIX_dvr_ms_timing_rep_data: + return "guid_dvr_ms_timing_rep_data"; + case ASF_GUID_PREFIX_dvr_ms_vid_frame_rep_data: + return "guid_dvr_ms_vid_frame_rep_data"; + default: + strcpy(tmp, "unknown guid "); + p = tmp + strlen(tmp); + for (i = 0; i < 16; i++) { + if ((1 << i) & ((1<<4) | (1<<6) | (1<<8))) *p++ = '-'; + sprintf(p, "%02x", guid[i]); + p += 2; + } + return tmp; + } +} + +int asf_check_header(demuxer_t *demuxer){ + unsigned char asfhdrguid[16]={0x30,0x26,0xB2,0x75,0x8E,0x66,0xCF,0x11,0xA6,0xD9,0x00,0xAA,0x00,0x62,0xCE,0x6C}; + struct asf_priv* asf = calloc(1,sizeof(*asf)); + asf->scrambling_h=asf->scrambling_w=asf->scrambling_b=1; + stream_read(demuxer->stream,(char*) &asf->header,sizeof(asf->header)); // header obj + le2me_ASF_header_t(&asf->header); // swap to machine endian +// for(i=0;i<16;i++) printf(" %02X",temp[i]);printf("\n"); +// for(i=0;i<16;i++) printf(" %02X",asfhdrguid[i]);printf("\n"); + if(memcmp(asfhdrguid,asf->header.objh.guid,16)){ + mp_msg(MSGT_HEADER,MSGL_V,"ASF_check: not ASF guid!\n"); + free(asf); + return 0; // not ASF guid + } + if(asf->header.cno>256){ + mp_msg(MSGT_HEADER,MSGL_V,"ASF_check: invalid subchunks_no %d\n",(int) asf->header.cno); + free(asf); + return 0; // invalid header??? + } + demuxer->priv = asf; + return DEMUXER_TYPE_ASF; +} + +static int get_ext_stream_properties(char *buf, int buf_len, int stream_num, struct asf_priv* asf, int is_video) +{ + int pos=0; + uint8_t *buffer = &buf[0]; + uint64_t avg_ft av_unused; + unsigned bitrate; + + while ((pos = find_asf_guid(buf, asf_ext_stream_header, pos, buf_len)) >= 0) { + int this_stream_num, stnamect, payct, i; + int buf_max_index=pos+50; + if (buf_max_index > buf_len) return 0; + buffer = &buf[pos]; + + // the following info is available + // some of it may be useful but we're skipping it for now + // starttime(8 bytes), endtime(8), + // leak-datarate(4), bucket-datasize(4), init-bucket-fullness(4), + // alt-leak-datarate(4), alt-bucket-datasize(4), alt-init-bucket-fullness(4), + // max-object-size(4), + // flags(4) (reliable,seekable,no_cleanpoints?,resend-live-cleanpoints, rest of bits reserved) + + buffer += 8+8; + bitrate = AV_RL32(buffer); + buffer += 8*4; + this_stream_num=AV_RL16(buffer);buffer+=2; + + if (this_stream_num == stream_num) { + buf_max_index+=14; + if (buf_max_index > buf_len) return 0; + buffer+=2; //skip stream-language-id-index + avg_ft = AV_RL64(buffer); // provided in 100ns units + buffer+=8; + asf->bps = bitrate / 8; + + // after this are values for stream-name-count and + // payload-extension-system-count + // followed by associated info for each + stnamect = AV_RL16(buffer);buffer+=2; + payct = AV_RL16(buffer);buffer+=2; + + // need to read stream names if present in order + // to get lengths - values are ignored for now + for (i=0; i<stnamect; i++) { + int stream_name_len; + buf_max_index+=4; + if (buf_max_index > buf_len) return 0; + buffer+=2; //language_id_index + stream_name_len = AV_RL16(buffer);buffer+=2; + buffer+=stream_name_len; //stream_name + buf_max_index+=stream_name_len; + if (buf_max_index > buf_len) return 0; + } + + if (is_video) { + asf->vid_repdata_count = payct; + asf->vid_repdata_sizes = malloc(payct*sizeof(int)); + } else { + asf->aud_repdata_count = payct; + asf->aud_repdata_sizes = malloc(payct*sizeof(int)); + } + + for (i=0; i<payct; i++) { + int payload_len; + buf_max_index+=22; + if (buf_max_index > buf_len) return 0; + // Each payload extension definition starts with a GUID. + // In dvr-ms files one of these indicates the presence an + // extension that contains pts values and this is always present + // in the video and audio streams. + // Another GUID indicates the presence of an extension + // that contains useful video frame demuxing information. + // Note that the extension data in each packet does not contain + // these GUIDs and that this header section defines the order the data + // will appear in. + if (memcmp(buffer, asf_dvr_ms_timing_rep_data, 16) == 0) { + if (is_video) + asf->vid_ext_timing_index = i; + else + asf->aud_ext_timing_index = i; + } else if (is_video && memcmp(buffer, asf_dvr_ms_vid_frame_rep_data, 16) == 0) + asf->vid_ext_frame_index = i; + buffer+=16; + + payload_len = AV_RL16(buffer);buffer+=2; + + if (is_video) + asf->vid_repdata_sizes[i] = payload_len; + else + asf->aud_repdata_sizes[i] = payload_len; + buffer+=4;//sys_len + } + + return 1; + } + } + return 1; +} + +#define CHECKDEC(l, n) if (((l) -= (n)) < 0) return 0 +static char* read_meta_record(ASF_meta_record_t* dest, char* buf, + int* buf_len) +{ + CHECKDEC(*buf_len, 2 + 2 + 2 + 2 + 4); + dest->lang_list_index = AV_RL16(buf); + dest->stream_num = AV_RL16(&buf[2]); + dest->name_length = AV_RL16(&buf[4]); + dest->data_type = AV_RL16(&buf[6]); + dest->data_length = AV_RL32(&buf[8]); + buf += 2 + 2 + 2 + 2 + 4; + CHECKDEC(*buf_len, dest->name_length); + dest->name = (uint16_t*)buf; + buf += dest->name_length; + CHECKDEC(*buf_len, dest->data_length); + dest->data = buf; + buf += dest->data_length; + return buf; +} + +static int get_meta(char *buf, int buf_len, int this_stream_num, + float* asp_ratio) +{ + int pos = 0; + uint16_t records_count; + uint16_t x = 0, y = 0; + + if ((pos = find_asf_guid(buf, asf_metadata_header, pos, buf_len)) < 0) + return 0; + + CHECKDEC(buf_len, pos); + buf += pos; + CHECKDEC(buf_len, 2); + records_count = AV_RL16(buf); + buf += 2; + + while (records_count--) { + ASF_meta_record_t record_entry; + char* name; + + if (!(buf = read_meta_record(&record_entry, buf, &buf_len))) + return 0; + /* reserved, must be zero */ + if (record_entry.lang_list_index) + continue; + /* match stream number: 0 to match all */ + if (record_entry.stream_num && record_entry.stream_num != this_stream_num) + continue; + if (!(name = get_ucs2str(record_entry.name, record_entry.name_length))) { + mp_tmsg(MSGT_HEADER, MSGL_ERR, "Memory allocation failed.\n"); + continue; + } + if (strcmp(name, "AspectRatioX") == 0) + x = AV_RL16(record_entry.data); + else if (strcmp(name, "AspectRatioY") == 0) + y = AV_RL16(record_entry.data); + free(name); + } + if (x && y) { + *asp_ratio = (float)x / (float)y; + return 1; + } + return 0; +} + +static int is_drm(char* buf, int buf_len) +{ + uint32_t data_len, type_len, key_len, url_len; + int pos = find_asf_guid(buf, asf_content_encryption, 0, buf_len); + + if (pos < 0) + return 0; + + CHECKDEC(buf_len, pos + 4); + buf += pos; + data_len = AV_RL32(buf); + buf += 4; + CHECKDEC(buf_len, data_len); + buf += data_len; + type_len = AV_RL32(buf); + if (type_len < 4) + return 0; + CHECKDEC(buf_len, 4 + type_len + 4); + buf += 4; + + if (buf[0] != 'D' || buf[1] != 'R' || buf[2] != 'M' || buf[3] != '\0') + return 0; + + buf += type_len; + key_len = AV_RL32(buf); + CHECKDEC(buf_len, key_len + 4); |