mirror of
https://github.com/mpv-player/mpv
synced 2024-12-16 20:05:07 +00:00
d02f928bc3
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23860 b3059339-0415-0410-9bf9-f77b7e298cf2
765 lines
27 KiB
C
765 lines
27 KiB
C
// .asf fileformat docs from http://divx.euro.ru
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "config.h"
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#include "libavutil/common.h"
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#include "libavutil/intreadwrite.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "stream/stream.h"
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#include "demuxer.h"
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#include "stheader.h"
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#include "asf.h"
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#ifdef ARCH_X86
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#define ASF_LOAD_GUID_PREFIX(guid) (*(uint32_t *)(guid))
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#else
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#define ASF_LOAD_GUID_PREFIX(guid) AV_RL32(guid)
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#endif
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#define ASF_GUID_PREFIX_audio_stream 0xF8699E40
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#define ASF_GUID_PREFIX_video_stream 0xBC19EFC0
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#define ASF_GUID_PREFIX_audio_conceal_none 0x49f1a440
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#define ASF_GUID_PREFIX_audio_conceal_interleave 0xbfc3cd50
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#define ASF_GUID_PREFIX_header 0x75B22630
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#define ASF_GUID_PREFIX_data_chunk 0x75b22636
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#define ASF_GUID_PREFIX_index_chunk 0x33000890
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#define ASF_GUID_PREFIX_stream_header 0xB7DC0791
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#define ASF_GUID_PREFIX_header_2_0 0xD6E229D1
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#define ASF_GUID_PREFIX_file_header 0x8CABDCA1
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#define ASF_GUID_PREFIX_content_desc 0x75b22633
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#define ASF_GUID_PREFIX_stream_group 0x7bf875ce
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#define ASF_GUID_PREFIX_ext_audio_stream 0x31178C9D
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#define ASF_GUID_PREFIX_ext_stream_embed_stream_header 0x3AFB65E2
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#define ASF_GUID_PREFIX_dvr_ms_timing_rep_data 0xFD3CC02A
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#define ASF_GUID_PREFIX_dvr_ms_vid_frame_rep_data 0xDD6432CC
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/*
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const char asf_audio_stream_guid[16] = {0x40, 0x9e, 0x69, 0xf8,
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0x4d, 0x5b, 0xcf, 0x11, 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b};
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const char asf_video_stream_guid[16] = {0xc0, 0xef, 0x19, 0xbc,
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0x4d, 0x5b, 0xcf, 0x11, 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b};
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*/
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const char asf_stream_header_guid[16] = {0x91, 0x07, 0xdc, 0xb7,
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0xb7, 0xa9, 0xcf, 0x11, 0x8e, 0xe6, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65};
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const char asf_file_header_guid[16] = {0xa1, 0xdc, 0xab, 0x8c,
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0x47, 0xa9, 0xcf, 0x11, 0x8e, 0xe4, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65};
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const char asf_content_desc_guid[16] = {0x33, 0x26, 0xb2, 0x75,
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0x8e, 0x66, 0xcf, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c};
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const char asf_stream_group_guid[16] = {0xce, 0x75, 0xf8, 0x7b,
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0x8d, 0x46, 0xd1, 0x11, 0x8d, 0x82, 0x00, 0x60, 0x97, 0xc9, 0xa2, 0xb2};
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const char asf_data_chunk_guid[16] = {0x36, 0x26, 0xb2, 0x75,
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0x8e, 0x66, 0xcf, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c};
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const char asf_ext_stream_embed_stream_header[16] = {0xe2, 0x65, 0xfb, 0x3a,
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0xef, 0x47, 0xf2, 0x40, 0xac, 0x2c, 0x70, 0xa9, 0x0d, 0x71, 0xd3, 0x43};
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const char asf_ext_stream_audio[16] = {0x9d, 0x8c, 0x17, 0x31,
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0xe1, 0x03, 0x28, 0x45, 0xb5, 0x82, 0x3d, 0xf9, 0xdb, 0x22, 0xf5, 0x03};
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const char asf_ext_stream_header[16] = {0xCB, 0xA5, 0xE6, 0x14,
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0x72, 0xC6, 0x32, 0x43, 0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A};
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const char asf_metadata_header[16] = {0xea, 0xcb, 0xf8, 0xc5,
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0xaf, 0x5b, 0x77, 0x48, 0x84, 0x67, 0xaa, 0x8c, 0x44, 0xfa, 0x4c, 0xca};
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const char asf_content_encryption[16] = {0xfb, 0xb3, 0x11, 0x22,
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0x23, 0xbd, 0xd2, 0x11, 0xb4, 0xb7, 0x00, 0xa0, 0xc9, 0x55, 0xfc, 0x6e};
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const char asf_dvr_ms_timing_rep_data[16] = {0x2a, 0xc0, 0x3c,0xfd,
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0xdb, 0x06, 0xfa, 0x4c, 0x80, 0x1c, 0x72, 0x12, 0xd3, 0x87, 0x45, 0xe4};
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const char asf_dvr_ms_vid_frame_rep_data[16] = {0xcc, 0x32, 0x64, 0xdd,
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0x29, 0xe2, 0xdb, 0x40, 0x80, 0xf6, 0xd2, 0x63, 0x28, 0xd2, 0x76, 0x1f};
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typedef struct {
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// must be 0 for metadata record, might be non-zero for metadata lib record
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uint16_t lang_list_index;
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uint16_t stream_num;
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uint16_t name_length;
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uint16_t data_type;
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uint32_t data_length;
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uint16_t* name;
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void* data;
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} ASF_meta_record_t;
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static char* get_ucs2str(const uint16_t* inbuf, uint16_t inlen)
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{
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char* outbuf = calloc(inlen, 2);
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char* q;
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int i;
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if (!outbuf) {
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mp_msg(MSGT_HEADER, MSGL_ERR, MSGTR_MemAllocFailed);
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return NULL;
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}
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q = outbuf;
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for (i = 0; i < inlen / 2; i++) {
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uint8_t tmp;
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PUT_UTF8(AV_RL16(&inbuf[i]), tmp, *q++ = tmp;)
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}
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return outbuf;
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}
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static const char* asf_chunk_type(unsigned char* guid) {
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static char tmp[60];
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char *p;
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int i;
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switch(ASF_LOAD_GUID_PREFIX(guid)){
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case ASF_GUID_PREFIX_audio_stream:
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return "guid_audio_stream";
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case ASF_GUID_PREFIX_ext_audio_stream:
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return "guid_ext_audio_stream";
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case ASF_GUID_PREFIX_ext_stream_embed_stream_header:
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return "guid_ext_stream_embed_stream_header";
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case ASF_GUID_PREFIX_video_stream:
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return "guid_video_stream";
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case ASF_GUID_PREFIX_audio_conceal_none:
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return "guid_audio_conceal_none";
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case ASF_GUID_PREFIX_audio_conceal_interleave:
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return "guid_audio_conceal_interleave";
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case ASF_GUID_PREFIX_header:
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return "guid_header";
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case ASF_GUID_PREFIX_data_chunk:
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return "guid_data_chunk";
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case ASF_GUID_PREFIX_index_chunk:
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return "guid_index_chunk";
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case ASF_GUID_PREFIX_stream_header:
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return "guid_stream_header";
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case ASF_GUID_PREFIX_header_2_0:
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return "guid_header_2_0";
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case ASF_GUID_PREFIX_file_header:
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return "guid_file_header";
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case ASF_GUID_PREFIX_content_desc:
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return "guid_content_desc";
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case ASF_GUID_PREFIX_dvr_ms_timing_rep_data:
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return "guid_dvr_ms_timing_rep_data";
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case ASF_GUID_PREFIX_dvr_ms_vid_frame_rep_data:
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return "guid_dvr_ms_vid_frame_rep_data";
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default:
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strcpy(tmp, "unknown guid ");
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p = tmp + strlen(tmp);
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for (i = 0; i < 16; i++) {
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if ((1 << i) & ((1<<4) | (1<<6) | (1<<8))) *p++ = '-';
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sprintf(p, "%02x", guid[i]);
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p += 2;
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}
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return tmp;
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}
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}
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int asf_check_header(demuxer_t *demuxer){
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unsigned char asfhdrguid[16]={0x30,0x26,0xB2,0x75,0x8E,0x66,0xCF,0x11,0xA6,0xD9,0x00,0xAA,0x00,0x62,0xCE,0x6C};
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struct asf_priv* asf = calloc(1,sizeof(*asf));
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asf->scrambling_h=asf->scrambling_w=asf->scrambling_b=1;
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stream_read(demuxer->stream,(char*) &asf->header,sizeof(asf->header)); // header obj
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le2me_ASF_header_t(&asf->header); // swap to machine endian
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// for(i=0;i<16;i++) printf(" %02X",temp[i]);printf("\n");
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// for(i=0;i<16;i++) printf(" %02X",asfhdrguid[i]);printf("\n");
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if(memcmp(asfhdrguid,asf->header.objh.guid,16)){
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mp_msg(MSGT_HEADER,MSGL_V,"ASF_check: not ASF guid!\n");
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free(asf);
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return 0; // not ASF guid
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}
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if(asf->header.cno>256){
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mp_msg(MSGT_HEADER,MSGL_V,"ASF_check: invalid subchunks_no %d\n",(int) asf->header.cno);
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free(asf);
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return 0; // invalid header???
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}
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demuxer->priv = asf;
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return DEMUXER_TYPE_ASF;
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}
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void print_wave_header(WAVEFORMATEX *h, int verbose_level);
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void print_video_header(BITMAPINFOHEADER *h, int verbose_level);
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int find_asf_guid(char *buf, const char *guid, int cur_pos, int buf_len)
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{
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int i;
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for (i = cur_pos; i < buf_len - 19; i++) {
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if (memcmp(&buf[i], guid, 16) == 0)
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return i + 16 + 8; // point after guid + length
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}
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return -1;
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}
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static int find_backwards_asf_guid(char *buf, const char *guid, int cur_pos)
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{
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int i;
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for (i=cur_pos-16; i>0; i--) {
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if (memcmp(&buf[i], guid, 16) == 0)
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return i + 16 + 8; // point after guid + length
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}
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return -1;
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}
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static int get_ext_stream_properties(char *buf, int buf_len, int stream_num, struct asf_priv* asf, int is_video)
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{
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int pos=0;
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uint8_t *buffer = &buf[0];
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uint64_t avg_ft;
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unsigned bitrate;
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while ((pos = find_asf_guid(buf, asf_ext_stream_header, pos, buf_len)) >= 0) {
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int this_stream_num, stnamect, payct, i;
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int buf_max_index=pos+50;
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if (buf_max_index > buf_len) return 0;
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buffer = &buf[pos];
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// the following info is available
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// some of it may be useful but we're skipping it for now
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// starttime(8 bytes), endtime(8),
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// leak-datarate(4), bucket-datasize(4), init-bucket-fullness(4),
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// alt-leak-datarate(4), alt-bucket-datasize(4), alt-init-bucket-fullness(4),
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// max-object-size(4),
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// flags(4) (reliable,seekable,no_cleanpoints?,resend-live-cleanpoints, rest of bits reserved)
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buffer += 8+8;
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bitrate = AV_RL32(buffer);
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buffer += 8*4;
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this_stream_num=AV_RL16(buffer);buffer+=2;
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if (this_stream_num == stream_num) {
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buf_max_index+=14;
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if (buf_max_index > buf_len) return 0;
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buffer+=2; //skip stream-language-id-index
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avg_ft = AV_RL64(buffer); // provided in 100ns units
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buffer+=8;
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asf->bps = bitrate / 8;
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// after this are values for stream-name-count and
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// payload-extension-system-count
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// followed by associated info for each
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stnamect = AV_RL16(buffer);buffer+=2;
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payct = AV_RL16(buffer);buffer+=2;
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// need to read stream names if present in order
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// to get lengths - values are ignored for now
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for (i=0; i<stnamect; i++) {
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int stream_name_len;
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buf_max_index+=4;
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if (buf_max_index > buf_len) return 0;
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buffer+=2; //language_id_index
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stream_name_len = AV_RL16(buffer);buffer+=2;
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buffer+=stream_name_len; //stream_name
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buf_max_index+=stream_name_len;
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if (buf_max_index > buf_len) return 0;
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}
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if (is_video) {
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asf->vid_repdata_count = payct;
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asf->vid_repdata_sizes = malloc(payct*sizeof(int));
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} else {
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asf->aud_repdata_count = payct;
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asf->aud_repdata_sizes = malloc(payct*sizeof(int));
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}
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for (i=0; i<payct; i++) {
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int payload_len;
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buf_max_index+=22;
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if (buf_max_index > buf_len) return 0;
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// Each payload extension definition starts with a GUID.
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// In dvr-ms files one of these indicates the presence an
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// extension that contains pts values and this is always present
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// in the video and audio streams.
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// Another GUID indicates the presence of an extension
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// that contains useful video frame demuxing information.
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// Note that the extension data in each packet does not contain
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// these GUIDs and that this header section defines the order the data
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// will appear in.
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if (memcmp(buffer, asf_dvr_ms_timing_rep_data, 16) == 0) {
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if (is_video)
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asf->vid_ext_timing_index = i;
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else
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asf->aud_ext_timing_index = i;
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} else if (is_video && memcmp(buffer, asf_dvr_ms_vid_frame_rep_data, 16) == 0)
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asf->vid_ext_frame_index = i;
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buffer+=16;
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payload_len = AV_RL16(buffer);buffer+=2;
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if (is_video)
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asf->vid_repdata_sizes[i] = payload_len;
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else
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asf->aud_repdata_sizes[i] = payload_len;
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buffer+=4;//sys_len
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}
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return 1;
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}
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}
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return 1;
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}
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#define CHECKDEC(l, n) if (((l) -= (n)) < 0) return 0
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static char* read_meta_record(ASF_meta_record_t* dest, char* buf,
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int* buf_len)
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{
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CHECKDEC(*buf_len, 2 + 2 + 2 + 2 + 4);
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dest->lang_list_index = AV_RL16(buf);
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dest->stream_num = AV_RL16(&buf[2]);
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dest->name_length = AV_RL16(&buf[4]);
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dest->data_type = AV_RL16(&buf[6]);
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dest->data_length = AV_RL32(&buf[8]);
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buf += 2 + 2 + 2 + 2 + 4;
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CHECKDEC(*buf_len, dest->name_length);
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dest->name = (uint16_t*)buf;
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buf += dest->name_length;
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CHECKDEC(*buf_len, dest->data_length);
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dest->data = buf;
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buf += dest->data_length;
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return buf;
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}
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static int get_meta(char *buf, int buf_len, int this_stream_num,
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float* asp_ratio)
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{
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int pos = 0;
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uint16_t records_count;
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uint16_t x = 0, y = 0;
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if ((pos = find_asf_guid(buf, asf_metadata_header, pos, buf_len)) < 0)
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return 0;
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CHECKDEC(buf_len, pos);
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buf += pos;
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CHECKDEC(buf_len, 2);
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records_count = AV_RL16(buf);
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buf += 2;
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while (records_count--) {
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ASF_meta_record_t record_entry;
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char* name;
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if (!(buf = read_meta_record(&record_entry, buf, &buf_len)))
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return 0;
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/* reserved, must be zero */
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if (record_entry.lang_list_index)
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continue;
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/* match stream number: 0 to match all */
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if (record_entry.stream_num && record_entry.stream_num != this_stream_num)
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continue;
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if (!(name = get_ucs2str(record_entry.name, record_entry.name_length))) {
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mp_msg(MSGT_HEADER, MSGL_ERR, MSGTR_MemAllocFailed);
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continue;
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}
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if (strcmp(name, "AspectRatioX") == 0)
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x = AV_RL16(record_entry.data);
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else if (strcmp(name, "AspectRatioY") == 0)
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y = AV_RL16(record_entry.data);
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free(name);
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}
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if (x && y) {
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*asp_ratio = (float)x / (float)y;
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return 1;
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}
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return 0;
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}
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static int is_drm(char* buf, int buf_len)
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{
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uint32_t data_len, type_len, key_len, url_len;
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int pos = find_asf_guid(buf, asf_content_encryption, 0, buf_len);
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if (pos < 0)
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return 0;
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CHECKDEC(buf_len, pos + 4);
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buf += pos;
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data_len = AV_RL32(buf);
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buf += 4;
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CHECKDEC(buf_len, data_len);
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buf += data_len;
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type_len = AV_RL32(buf);
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if (type_len < 4)
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return 0;
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CHECKDEC(buf_len, 4 + type_len + 4);
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buf += 4;
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if (buf[0] != 'D' || buf[1] != 'R' || buf[2] != 'M' || buf[3] != '\0')
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return 0;
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buf += type_len;
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key_len = AV_RL32(buf);
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CHECKDEC(buf_len, key_len + 4);
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buf += 4;
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buf[key_len - 1] = '\0';
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mp_msg(MSGT_HEADER, MSGL_V, "DRM Key ID: %s\n", buf);
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buf += key_len;
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url_len = AV_RL32(buf);
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CHECKDEC(buf_len, url_len);
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buf += 4;
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buf[url_len - 1] = '\0';
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mp_msg(MSGT_HEADER, MSGL_INFO, MSGTR_MPDEMUX_ASFHDR_DRMLicenseURL, buf);
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return 1;
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}
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static int asf_init_audio_stream(demuxer_t *demuxer,struct asf_priv* asf, sh_audio_t* sh_audio, ASF_stream_header_t *streamh, int *ppos, uint8_t** buf, char *hdr, unsigned int hdr_len)
|
|
{
|
|
uint8_t *buffer = *buf;
|
|
int pos = *ppos;
|
|
|
|
sh_audio->wf=calloc((streamh->type_size<sizeof(WAVEFORMATEX))?sizeof(WAVEFORMATEX):streamh->type_size,1);
|
|
memcpy(sh_audio->wf,buffer,streamh->type_size);
|
|
le2me_WAVEFORMATEX(sh_audio->wf);
|
|
if( mp_msg_test(MSGT_HEADER,MSGL_V) ) print_wave_header(sh_audio->wf,MSGL_V);
|
|
if(ASF_LOAD_GUID_PREFIX(streamh->concealment)==ASF_GUID_PREFIX_audio_conceal_interleave){
|
|
buffer = &hdr[pos];
|
|
pos += streamh->stream_size;
|
|
if (pos > hdr_len) return 0;
|
|
asf->scrambling_h=buffer[0];
|
|
asf->scrambling_w=(buffer[2]<<8)|buffer[1];
|
|
asf->scrambling_b=(buffer[4]<<8)|buffer[3];
|
|
if(asf->scrambling_b>0){
|
|
asf->scrambling_w/=asf->scrambling_b;
|
|
}
|
|
} else {
|
|
asf->scrambling_b=asf->scrambling_h=asf->scrambling_w=1;
|
|
}
|
|
mp_msg(MSGT_HEADER,MSGL_V,"ASF: audio scrambling: %d x %d x %d\n",asf->scrambling_h,asf->scrambling_w,asf->scrambling_b);
|
|
return 1;
|
|
}
|
|
|
|
int read_asf_header(demuxer_t *demuxer,struct asf_priv* asf){
|
|
int hdr_len = asf->header.objh.size - sizeof(asf->header);
|
|
int hdr_skip = 0;
|
|
char *hdr = NULL;
|
|
char guid_buffer[16];
|
|
int pos, start = stream_tell(demuxer->stream);
|
|
uint32_t* streams = NULL;
|
|
int audio_streams=0;
|
|
int video_streams=0;
|
|
uint16_t stream_count=0;
|
|
int best_video = -1;
|
|
int best_audio = -1;
|
|
uint64_t data_len;
|
|
ASF_stream_header_t *streamh;
|
|
uint8_t *buffer;
|
|
int audio_pos=0;
|
|
|
|
if(hdr_len < 0) {
|
|
mp_msg(MSGT_HEADER, MSGL_FATAL, "Header size is too small.\n");
|
|
return 0;
|
|
}
|
|
|
|
if (hdr_len > 1024 * 1024) {
|
|
mp_msg(MSGT_HEADER, MSGL_ERR, MSGTR_MPDEMUX_ASFHDR_HeaderSizeOver1MB,
|
|
hdr_len);
|
|
hdr_skip = hdr_len - 1024 * 1024;
|
|
hdr_len = 1024 * 1024;
|
|
}
|
|
hdr = malloc(hdr_len);
|
|
if (!hdr) {
|
|
mp_msg(MSGT_HEADER, MSGL_FATAL, MSGTR_MPDEMUX_ASFHDR_HeaderMallocFailed,
|
|
hdr_len);
|
|
return 0;
|
|
}
|
|
stream_read(demuxer->stream, hdr, hdr_len);
|
|
if (hdr_skip)
|
|
stream_skip(demuxer->stream, hdr_skip);
|
|
if (stream_eof(demuxer->stream)) {
|
|
mp_msg(MSGT_HEADER, MSGL_FATAL, MSGTR_MPDEMUX_ASFHDR_EOFWhileReadingHeader);
|
|
goto err_out;
|
|
}
|
|
|
|
if (is_drm(hdr, hdr_len))
|
|
mp_msg(MSGT_HEADER, MSGL_FATAL, MSGTR_MPDEMUX_ASFHDR_DRMProtected);
|
|
|
|
if ((pos = find_asf_guid(hdr, asf_ext_stream_audio, 0, hdr_len)) >= 0)
|
|
{
|
|
// Special case: found GUID for dvr-ms audio.
|
|
// Now skip back to associated stream header.
|
|
int sh_pos=0;
|
|
|
|
sh_pos = find_backwards_asf_guid(hdr, asf_stream_header_guid, pos);
|
|
|
|
if (sh_pos > 0) {
|
|
sh_audio_t *sh_audio;
|
|
|
|
mp_msg(MSGT_HEADER, MSGL_V, "read_asf_header found dvr-ms audio stream header pos=%d\n", sh_pos);
|
|
// found audio stream header - following code reads header and
|
|
// initializes audio stream.
|
|
audio_pos = pos - 16 - 8;
|
|
streamh = (ASF_stream_header_t *)&hdr[sh_pos];
|
|
le2me_ASF_stream_header_t(streamh);
|
|
audio_pos += 64; //16+16+4+4+4+16+4;
|
|
buffer = &hdr[audio_pos];
|
|
sh_audio=new_sh_audio(demuxer,streamh->stream_no & 0x7F);
|
|
mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_AudioID, "asfheader", streamh->stream_no & 0x7F);
|
|
++audio_streams;
|
|
if (!asf_init_audio_stream(demuxer, asf, sh_audio, streamh, &audio_pos, &buffer, hdr, hdr_len))
|
|
goto len_err_out;
|
|
if (!get_ext_stream_properties(hdr, hdr_len, streamh->stream_no, asf, 0))
|
|
goto len_err_out;
|
|
}
|
|
}
|
|
// find stream headers
|
|
// only reset pos if we didnt find dvr_ms audio stream
|
|
// if we did find it then we want to avoid reading its header twice
|
|
if (audio_pos == 0)
|
|
pos = 0;
|
|
|
|
while ((pos = find_asf_guid(hdr, asf_stream_header_guid, pos, hdr_len)) >= 0)
|
|
{
|
|
streamh = (ASF_stream_header_t *)&hdr[pos];
|
|
pos += sizeof(ASF_stream_header_t);
|
|
if (pos > hdr_len) goto len_err_out;
|
|
le2me_ASF_stream_header_t(streamh);
|
|
mp_msg(MSGT_HEADER, MSGL_V, "stream type: %s\n",
|
|
asf_chunk_type(streamh->type));
|
|
mp_msg(MSGT_HEADER, MSGL_V, "stream concealment: %s\n",
|
|
asf_chunk_type(streamh->concealment));
|
|
mp_msg(MSGT_HEADER, MSGL_V, "type: %d bytes, stream: %d bytes ID: %d\n",
|
|
(int)streamh->type_size, (int)streamh->stream_size,
|
|
(int)streamh->stream_no);
|
|
mp_msg(MSGT_HEADER, MSGL_V, "unk1: %lX unk2: %X\n",
|
|
(unsigned long)streamh->unk1, (unsigned int)streamh->unk2);
|
|
mp_msg(MSGT_HEADER, MSGL_V, "FILEPOS=0x%X\n", pos + start);
|
|
// type-specific data:
|
|
buffer = &hdr[pos];
|
|
pos += streamh->type_size;
|
|
if (pos > hdr_len) goto len_err_out;
|
|
switch(ASF_LOAD_GUID_PREFIX(streamh->type)){
|
|
case ASF_GUID_PREFIX_audio_stream: {
|
|
sh_audio_t* sh_audio=new_sh_audio(demuxer,streamh->stream_no & 0x7F);
|
|
mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_AudioID, "asfheader", streamh->stream_no & 0x7F);
|
|
++audio_streams;
|
|
if (!asf_init_audio_stream(demuxer, asf, sh_audio, streamh, &pos, &buffer, hdr, hdr_len))
|
|
goto len_err_out;
|
|
//if(demuxer->audio->id==-1) demuxer->audio->id=streamh.stream_no & 0x7F;
|
|
break;
|
|
}
|
|
case ASF_GUID_PREFIX_video_stream: {
|
|
unsigned int len;
|
|
float asp_ratio;
|
|
sh_video_t* sh_video=new_sh_video(demuxer,streamh->stream_no & 0x7F);
|
|
mp_msg(MSGT_DEMUX, MSGL_INFO, MSGTR_VideoID, "asfheader", streamh->stream_no & 0x7F);
|
|
len=streamh->type_size-(4+4+1+2);
|
|
++video_streams;
|
|
// sh_video->bih=malloc(chunksize); memset(sh_video->bih,0,chunksize);
|
|
sh_video->bih=calloc((len<sizeof(BITMAPINFOHEADER))?sizeof(BITMAPINFOHEADER):len,1);
|
|
memcpy(sh_video->bih,&buffer[4+4+1+2],len);
|
|
le2me_BITMAPINFOHEADER(sh_video->bih);
|
|
if (sh_video->bih->biSize > len && sh_video->bih->biSize > sizeof(BITMAPINFOHEADER))
|
|
sh_video->bih->biSize = len;
|
|
if (sh_video->bih->biCompression == mmioFOURCC('D', 'V', 'R', ' ')) {
|
|
//mp_msg(MSGT_DEMUXER, MSGL_WARN, MSGTR_MPDEMUX_ASFHDR_DVRWantsLibavformat);
|
|
//sh_video->fps=(float)sh_video->video.dwRate/(float)sh_video->video.dwScale;
|
|
//sh_video->frametime=(float)sh_video->video.dwScale/(float)sh_video->video.dwRate;
|
|
asf->asf_frame_state=-1;
|
|
asf->asf_frame_start_found=0;
|
|
asf->asf_is_dvr_ms=1;
|
|
asf->dvr_last_vid_pts=0.0;
|
|
} else asf->asf_is_dvr_ms=0;
|
|
if (!get_ext_stream_properties(hdr, hdr_len, streamh->stream_no, asf, 1))
|
|
goto len_err_out;
|
|
if (get_meta(hdr, hdr_len, streamh->stream_no, &asp_ratio)) {
|
|
sh_video->aspect = asp_ratio * sh_video->bih->biWidth /
|
|
sh_video->bih->biHeight;
|
|
}
|
|
sh_video->i_bps = asf->bps;
|
|
|
|
if( mp_msg_test(MSGT_DEMUX,MSGL_V) ) print_video_header(sh_video->bih, MSGL_V);
|
|
//asf_video_id=streamh.stream_no & 0x7F;
|
|
//if(demuxer->video->id==-1) demuxer->video->id=streamh.stream_no & 0x7F;
|
|
break;
|
|
}
|
|
}
|
|
// stream-specific data:
|
|
// stream_read(demuxer->stream,(char*) buffer,streamh.stream_size);
|
|
}
|
|
|
|
// find file header
|
|
pos = find_asf_guid(hdr, asf_file_header_guid, 0, hdr_len);
|
|
if (pos >= 0) {
|
|
ASF_file_header_t *fileh = (ASF_file_header_t *)&hdr[pos];
|
|
pos += sizeof(ASF_file_header_t);
|
|
if (pos > hdr_len) goto len_err_out;
|
|
le2me_ASF_file_header_t(fileh);
|
|
mp_msg(MSGT_HEADER, MSGL_V, "ASF: packets: %d flags: %d "
|
|
"max_packet_size: %d min_packet_size: %d max_bitrate: %d "
|
|
"preroll: %d\n",
|
|
(int)fileh->num_packets, (int)fileh->flags,
|
|
(int)fileh->min_packet_size, (int)fileh->max_packet_size,
|
|
(int)fileh->max_bitrate, (int)fileh->preroll);
|
|
asf->packetsize=fileh->max_packet_size;
|
|
asf->packet=malloc(asf->packetsize); // !!!
|
|
asf->packetrate=fileh->max_bitrate/8.0/(double)asf->packetsize;
|
|
asf->movielength=(fileh->play_duration-fileh->preroll)/10000000LL;
|
|
}
|
|
|
|
// find content header
|
|
pos = find_asf_guid(hdr, asf_content_desc_guid, 0, hdr_len);
|
|
if (pos >= 0) {
|
|
ASF_content_description_t *contenth = (ASF_content_description_t *)&hdr[pos];
|
|
char *string=NULL;
|
|
uint16_t* wstring = NULL;
|
|
uint16_t len;
|
|
pos += sizeof(ASF_content_description_t);
|
|
if (pos > hdr_len) goto len_err_out;
|
|
le2me_ASF_content_description_t(contenth);
|
|
mp_msg(MSGT_HEADER,MSGL_V,"\n");
|
|
// extract the title
|
|
if((len = contenth->title_size) != 0) {
|
|
wstring = (uint16_t*)&hdr[pos];
|
|
pos += len;
|
|
if (pos > hdr_len) goto len_err_out;
|
|
if ((string = get_ucs2str(wstring, len))) {
|
|
mp_msg(MSGT_HEADER,MSGL_V," Title: %s\n", string);
|
|
demux_info_add(demuxer, "name", string);
|
|
free(string);
|
|
}
|
|
}
|
|
// extract the author
|
|
if((len = contenth->author_size) != 0) {
|
|
wstring = (uint16_t*)&hdr[pos];
|
|
pos += len;
|
|
if (pos > hdr_len) goto len_err_out;
|
|
if ((string = get_ucs2str(wstring, len))) {
|
|
mp_msg(MSGT_HEADER,MSGL_V," Author: %s\n", string);
|
|
demux_info_add(demuxer, "author", string);
|
|
free(string);
|
|
}
|
|
}
|
|
// extract the copyright
|
|
if((len = contenth->copyright_size) != 0) {
|
|
wstring = (uint16_t*)&hdr[pos];
|
|
pos += len;
|
|
if (pos > hdr_len) goto len_err_out;
|
|
if ((string = get_ucs2str(wstring, len))) {
|
|
mp_msg(MSGT_HEADER,MSGL_V," Copyright: %s\n", string);
|
|
demux_info_add(demuxer, "copyright", string);
|
|
free(string);
|
|
}
|
|
}
|
|
// extract the comment
|
|
if((len = contenth->comment_size) != 0) {
|
|
wstring = (uint16_t*)&hdr[pos];
|
|
pos += len;
|
|
if (pos > hdr_len) goto len_err_out;
|
|
if ((string = get_ucs2str(wstring, len))) {
|
|
mp_msg(MSGT_HEADER,MSGL_V," Comment: %s\n", string);
|
|
demux_info_add(demuxer, "comments", string);
|
|
free(string);
|
|
}
|
|
}
|
|
// extract the rating
|
|
if((len = contenth->rating_size) != 0) {
|
|
wstring = (uint16_t*)&hdr[pos];
|
|
pos += len;
|
|
if (pos > hdr_len) goto len_err_out;
|
|
if ((string = get_ucs2str(wstring, len))) {
|
|
mp_msg(MSGT_HEADER,MSGL_V," Rating: %s\n", string);
|
|
free(string);
|
|
}
|
|
}
|
|
mp_msg(MSGT_HEADER,MSGL_V,"\n");
|
|
}
|
|
|
|
// find content header
|
|
pos = find_asf_guid(hdr, asf_stream_group_guid, 0, hdr_len);
|
|
if (pos >= 0) {
|
|
uint16_t stream_id, i;
|
|
uint32_t max_bitrate;
|
|
char *ptr = &hdr[pos];
|
|
mp_msg(MSGT_HEADER,MSGL_V,"============ ASF Stream group == START ===\n");
|
|
stream_count = AV_RL16(ptr);
|
|
ptr += sizeof(uint16_t);
|
|
if (ptr > &hdr[hdr_len]) goto len_err_out;
|
|
if(stream_count > 0)
|
|
streams = malloc(2*stream_count*sizeof(uint32_t));
|
|
mp_msg(MSGT_HEADER,MSGL_V," stream count=[0x%x][%u]\n", stream_count, stream_count );
|
|
for( i=0 ; i<stream_count ; i++ ) {
|
|
stream_id = AV_RL16(ptr);
|
|
ptr += sizeof(uint16_t);
|
|
if (ptr > &hdr[hdr_len]) goto len_err_out;
|
|
memcpy(&max_bitrate, ptr, sizeof(uint32_t));// workaround unaligment bug on sparc
|
|
max_bitrate = le2me_32(max_bitrate);
|
|
ptr += sizeof(uint32_t);
|
|
if (ptr > &hdr[hdr_len]) goto len_err_out;
|
|
mp_msg(MSGT_HEADER,MSGL_V," stream id=[0x%x][%u]\n", stream_id, stream_id );
|
|
mp_msg(MSGT_HEADER,MSGL_V," max bitrate=[0x%x][%u]\n", max_bitrate, max_bitrate );
|
|
streams[2*i] = stream_id;
|
|
streams[2*i+1] = max_bitrate;
|
|
}
|
|
mp_msg(MSGT_HEADER,MSGL_V,"============ ASF Stream group == END ===\n");
|
|
}
|
|
free(hdr);
|
|
hdr = NULL;
|
|
start = stream_tell(demuxer->stream); // start of first data chunk
|
|
stream_read(demuxer->stream, guid_buffer, 16);
|
|
if (memcmp(guid_buffer, asf_data_chunk_guid, 16) != 0) {
|
|
mp_msg(MSGT_HEADER, MSGL_FATAL, MSGTR_MPDEMUX_ASFHDR_NoDataChunkAfterHeader);
|
|
free(streams);
|
|
streams = NULL;
|
|
return 0;
|
|
}
|
|
// read length of chunk
|
|
stream_read(demuxer->stream, (char *)&data_len, sizeof(data_len));
|
|
data_len = le2me_64(data_len);
|
|
demuxer->movi_start = stream_tell(demuxer->stream) + 26;
|
|
demuxer->movi_end = start + data_len;
|
|
mp_msg(MSGT_HEADER, MSGL_V, "Found movie at 0x%X - 0x%X\n",
|
|
(int)demuxer->movi_start, (int)demuxer->movi_end);
|
|
|
|
if(streams) {
|
|
// stream selection is done in the network code, it shouldn't be done here
|
|
// as the servers often do not care about what we requested.
|
|
#if 0
|
|
uint32_t vr = 0, ar = 0,i;
|
|
#ifdef MPLAYER_NETWORK
|
|
if( demuxer->stream->streaming_ctrl!=NULL ) {
|
|
if( demuxer->stream->streaming_ctrl->bandwidth!=0 && demuxer->stream->streaming_ctrl->data!=NULL ) {
|
|
best_audio = ((asf_http_streaming_ctrl_t*)demuxer->stream->streaming_ctrl->data)->audio_id;
|
|
best_video = ((asf_http_streaming_ctrl_t*)demuxer->stream->streaming_ctrl->data)->video_id;
|
|
}
|
|
} else
|
|
#endif
|
|
for(i = 0; i < stream_count; i++) {
|
|
uint32_t id = streams[2*i];
|
|
uint32_t rate = streams[2*i+1];
|
|
if(demuxer->v_streams[id] && rate > vr) {
|
|
vr = rate;
|
|
best_video = id;
|
|
} else if(demuxer->a_streams[id] && rate > ar) {
|
|
ar = rate;
|
|
best_audio = id;
|
|
}
|
|
}
|
|
#endif
|
|
free(streams);
|
|
streams = NULL;
|
|
}
|
|
|
|
mp_msg(MSGT_HEADER,MSGL_V,"ASF: %d audio and %d video streams found\n",audio_streams,video_streams);
|
|
if(!audio_streams) demuxer->audio->id=-2; // nosound
|
|
else if(best_audio > 0 && demuxer->audio->id == -1) demuxer->audio->id=best_audio;
|
|
if(!video_streams){
|
|
if(!audio_streams){
|
|
mp_msg(MSGT_HEADER,MSGL_ERR,MSGTR_MPDEMUX_ASFHDR_AudioVideoHeaderNotFound);
|
|
return 0;
|
|
}
|
|
demuxer->video->id=-2; // audio-only
|
|
} else if (best_video > 0 && demuxer->video->id == -1) demuxer->video->id = best_video;
|
|
|
|
#if 0
|
|
if( mp_msg_test(MSGT_HEADER,MSGL_V) ){
|
|
printf("ASF duration: %d\n",(int)fileh.duration);
|
|
printf("ASF start pts: %d\n",(int)fileh.start_timestamp);
|
|
printf("ASF end pts: %d\n",(int)fileh.end_timestamp);
|
|
}
|
|
#endif
|
|
|
|
return 1;
|
|
|
|
len_err_out:
|
|
mp_msg(MSGT_HEADER, MSGL_FATAL, MSGTR_MPDEMUX_ASFHDR_InvalidLengthInASFHeader);
|
|
err_out:
|
|
if (hdr) free(hdr);
|
|
if (streams) free(streams);
|
|
return 0;
|
|
}
|