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mpv/demux/demux_asf.c
wm4 72bdc5d3af core: use playback time to determine playback percent position 
The percent position is used for the OSD, the status line, and for the
OSD bar (shown on seeks). By default, the PTS of the last demuxed packet
was used to calculate it. This led to a "jumpy" display when the
percentage value (casted to int) was changing. The reasons for this were
the presence of video frame reordering (packet PTS is not monotonic), or
getting PTS values from different streams (like audio/subs).

Since these rely on PTS values and correct file durations anyway,
simplify it by calculating it with the current playback position in
mplayer.c instead.
2013-02-26 02:01:48 +01:00

695 lines
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/*
* ASF file parser for DEMUXER v0.3
* copyright (c) 2001 A'rpi/ESP-team
*
* 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include <libavutil/intreadwrite.h>
#include "config.h"
#include "core/mp_msg.h"
#include "stream/stream.h"
#include "asf.h"
#include "asfheader.h"
#include "demux.h"
#include "audio/decode/dec_audio.h"
// based on asf file-format doc by Eugene [http://divx.euro.ru]
/**
* \brief reads int stored in number of bytes given by len
* \param ptr pointer to read from, is incremented appropriately
* \param len lowest 2 bits indicate number of bytes to read
* \param def default value to return if len is invalid
*/
static inline unsigned read_varlen(uint8_t **ptr, int len, int def) {
const uint8_t *p = *ptr;
len &= 3;
switch (len) {
case 1: *ptr += 1; return *p;
case 2: *ptr += 2; return AV_RL16(p);
case 3: *ptr += 4; return AV_RL32(p);
}
return def;
}
/**
* \brief checks if there is enough data to read the bytes given by len
* \param ptr pointer to read from
* \param endptr pointer to the end of the buffer
* \param len lowest 2 bits indicate number of bytes to read
*/
static inline int check_varlen(uint8_t *ptr, uint8_t *endptr, int len) {
return len&3 ? ptr + (1<<((len&3) - 1)) <= endptr : 1;
}
static void asf_descrambling(unsigned char **src,unsigned len, struct asf_priv* asf){
unsigned char *dst;
unsigned char *s2=*src;
unsigned i=0,x,y;
if (len > UINT_MAX - MP_INPUT_BUFFER_PADDING_SIZE)
return;
dst = malloc(len + MP_INPUT_BUFFER_PADDING_SIZE);
while(len>=asf->scrambling_h*asf->scrambling_w*asf->scrambling_b+i){
// mp_msg(MSGT_DEMUX,MSGL_DBG4,"descrambling! (w=%d b=%d)\n",w,asf_scrambling_b);
//i+=asf_scrambling_h*asf_scrambling_w;
for(x=0;x<asf->scrambling_w;x++)
for(y=0;y<asf->scrambling_h;y++){
memcpy(dst+i,s2+(y*asf->scrambling_w+x)*asf->scrambling_b,asf->scrambling_b);
i+=asf->scrambling_b;
}
s2+=asf->scrambling_h*asf->scrambling_w*asf->scrambling_b;
}
//if(i<len) memcpy(dst+i,src+i,len-i);
free(*src);
*src = dst;
}
/*****************************************************************
* \brief initializes asf private data
*
*/
static void init_priv (struct asf_priv* asf){
asf->last_vid_seq=-1;
asf->vid_ext_timing_index=-1;
asf->aud_ext_timing_index=-1;
asf->vid_ext_frame_index=-1;
}
static void demux_asf_append_to_packet(demux_packet_t* dp,unsigned char *data,int len,int offs)
{
if(dp->len!=offs && offs!=-1) mp_msg(MSGT_DEMUX,MSGL_V,"warning! fragment.len=%d BUT next fragment offset=%d \n",dp->len,offs);
dp->buffer=realloc(dp->buffer,dp->len+len+MP_INPUT_BUFFER_PADDING_SIZE);
memcpy(dp->buffer+dp->len,data,len);
memset(dp->buffer+dp->len+len, 0, MP_INPUT_BUFFER_PADDING_SIZE);
mp_dbg(MSGT_DEMUX,MSGL_DBG4,"data appended! %d+%d\n",dp->len,len);
dp->len+=len;
}
static int demux_asf_read_packet(demuxer_t *demux,unsigned char *data,int len,int id,int seq,uint64_t time,unsigned short dur,int offs,int keyframe){
struct asf_priv* asf = demux->priv;
demux_stream_t *ds=NULL;
int close_seg=0;
mp_dbg(MSGT_DEMUX,MSGL_DBG4,"demux_asf.read_packet: id=%d seq=%d len=%d\n",id,seq,len);
if(demux->video->id==-1)
if(demux->v_streams[id])
demux->video->id=id;
if(demux->audio->id==-1)
if(demux->a_streams[id])
demux->audio->id=id;
if(id==demux->audio->id){
// audio
ds=demux->audio;
if(!ds->sh){
ds->sh=demux->a_streams[id];
mp_msg(MSGT_DEMUX,MSGL_V,"Auto-selected ASF audio ID = %d\n",ds->id);
}
} else
if(id==demux->video->id){
// video
ds=demux->video;
if(!ds->sh){
ds->sh=demux->v_streams[id];
mp_msg(MSGT_DEMUX,MSGL_V,"Auto-selected ASF video ID = %d\n",ds->id);
}
}
if(ds){
if(ds->asf_packet){
demux_packet_t* dp=ds->asf_packet;
if (ds==demux->video && asf->asf_is_dvr_ms) {
if (asf->new_vid_frame_seg) {
dp->pos=demux->filepos;
close_seg = 1;
} else seq = ds->asf_seq;
} else close_seg = ds->asf_seq!=seq;
if(close_seg){
// closed segment, finalize packet:
if(ds==demux->audio)
if(asf->scrambling_h>1 && asf->scrambling_w>1 && asf->scrambling_b>0)
asf_descrambling(&ds->asf_packet->buffer,ds->asf_packet->len,asf);
ds_add_packet(ds,ds->asf_packet);
ds->asf_packet=NULL;
} else {
// append data to it!
demux_asf_append_to_packet(dp,data,len,offs);
// we are ready now.
return 1;
}
}
// create new packet:
{ demux_packet_t* dp;
if(offs>0){
mp_msg(MSGT_DEMUX,MSGL_V,"warning! broken fragment, %d bytes missing \n",offs);
return 0;
}
dp=new_demux_packet(len);
memcpy(dp->buffer,data,len);
if (asf->asf_is_dvr_ms)
dp->pts=time*0.0000001;
else
dp->pts=time*0.001;
dp->keyframe = keyframe;
// if(ds==demux->video) printf("ASF time: %8d dur: %5d \n",time,dur);
dp->pos=demux->filepos;
ds->asf_packet=dp;
ds->asf_seq=seq;
// we are ready now.
return 1;
}
}
return 0;
}
/*****************************************************************
* \brief read the replicated data associated with each segment
* \parameter pp reference to replicated data
* \parameter id stream number
* \parameter seq media object number
* \parameter keyframe key frame indicator - set to zero if keyframe, non-zero otherwise
* \parameter seg_time set to payload time when valid, if audio or new video frame payload, zero otherwise
*
*/
static void get_payload_extension_data(demuxer_t *demux, unsigned char** pp, unsigned char id, unsigned int seq, int *keyframe, uint64_t *seg_time){
struct asf_priv* asf = demux->priv;
uint64_t payload_time = -1; //100ns units
int i, ext_max, ext_timing_index;
uint8_t *pi = *pp+4;
if(demux->video->id==-1)
if(demux->v_streams[id])
demux->video->id=id;
if(demux->audio->id==-1)
if(demux->a_streams[id])
demux->audio->id=id;
if (id!=demux->video->id && id!=demux->audio->id) return;
if (id==demux->video->id) {
ext_max = asf->vid_repdata_count;
ext_timing_index = asf->vid_ext_timing_index;
} else {
ext_max = asf->aud_repdata_count;
ext_timing_index = asf->aud_ext_timing_index;
}
*seg_time=0.0;
asf->new_vid_frame_seg = 0;
for (i=0; i<ext_max; i++) {
uint16_t payextsize;
uint8_t segment_marker;
if (id==demux->video->id)
payextsize = asf->vid_repdata_sizes[i];
else
payextsize = asf->aud_repdata_sizes[i];
if (payextsize == 65535) {
payextsize = AV_RL16(pi);
pi+=2;
}
// if this is the timing info extension then read the payload time
if (i == ext_timing_index)
payload_time = AV_RL64(pi+8);
// if this is the video frame info extension then
// set the keyframe indicator, the 'new frame segment' indicator
// and (initially) the 'frame time'
if (i == asf->vid_ext_frame_index && id==demux->video->id) {
segment_marker = pi[0];
// Known video stream segment_marker values that
// contain useful information:
//
// NTSC/ATSC (29.97fps): 0X4A 01001010
// 0X4B 01001011
// 0X49 01001001
//
// PAL/ATSC (25fps): 0X3A 00111010
// 0X3B 00111011
// 0X39 00111001
//
// ATSC progressive (29.97fps): 0X7A 01111010
// 0X7B 01111011
// 0X79 01111001
// 11111111
// ^ this is new video frame marker
//
// ^^^^ these bits indicate the framerate
// 0X4 is 29.97i, 0X3 is 25i, 0X7 is 29.97p, ???=25p
//
// ^^^ these bits indicate the frame type:
// 001 means I-frame
// 010 and 011 probably mean P and B
asf->new_vid_frame_seg = (0X08 & segment_marker) && seq != asf->last_vid_seq;
if (asf->new_vid_frame_seg) asf->last_vid_seq = seq;
if (asf->avg_vid_frame_time == 0) {
// set the average frame time initially (in 100ns units).
// This is based on what works for known samples.
// It can be extended if more samples of different types can be obtained.
if (((segment_marker & 0XF0) >> 4) == 4) {
asf->avg_vid_frame_time = (uint64_t)((1.001 / 30.0) * 10000000.0);
asf->know_frame_time=1;
} else if (((segment_marker & 0XF0) >> 4) == 3) {
asf->avg_vid_frame_time = (uint64_t)(0.04 * 10000000.0);
asf->know_frame_time=1;
} else if (((segment_marker & 0XF0) >> 4) == 6) {
asf->avg_vid_frame_time = (uint64_t)(0.02 * 10000000.0);
asf->know_frame_time=1;
} else if (((segment_marker & 0XF0) >> 4) == 7) {
asf->avg_vid_frame_time = (uint64_t)((1.001 / 60.0) * 10000000.0);
asf->know_frame_time=1;
} else {
// we dont know the frame time initially so
// make a guess and then recalculate as we go.
asf->avg_vid_frame_time = (uint64_t)((1.001 / 60.0) * 10000000.0);
asf->know_frame_time=0;
}
}
*keyframe = (asf->new_vid_frame_seg && (segment_marker & 0X07) == 1);
}
pi +=payextsize;
}
if (id==demux->video->id && asf->new_vid_frame_seg) {
asf->vid_frame_ct++;
// Some samples only have timings on key frames and
// the rest contain non-cronological timestamps. Interpolating
// the values between key frames works for all samples.
if (*keyframe) {
asf->found_first_key_frame=1;
if (!asf->know_frame_time && asf->last_key_payload_time > 0) {
// We dont know average frametime so recalculate.
// Giving precedence to the 'weight' of the existing
// average limits damage done to new value when there is
// a sudden time jump which happens occasionally.
asf->avg_vid_frame_time =
(0.9 * asf->avg_vid_frame_time) +
(0.1 * ((payload_time - asf->last_key_payload_time) / asf->vid_frame_ct));
}
asf->last_key_payload_time = payload_time;
asf->vid_frame_ct = 1;
*seg_time = payload_time;
} else
*seg_time = (asf->last_key_payload_time + (asf->avg_vid_frame_time * (asf->vid_frame_ct-1)));
}
if (id==demux->audio->id) {
if (payload_time != -1)
asf->last_aud_diff = payload_time - asf->last_aud_pts;
asf->last_aud_pts += asf->last_aud_diff;
*seg_time = asf->last_aud_pts;
}
}
//static int num_elementary_packets100=0;
//static int num_elementary_packets101=0;
// return value:
// 0 = EOF or no stream found
// 1 = successfully read a packet
static int demux_asf_fill_buffer(demuxer_t *demux, demux_stream_t *ds){
struct asf_priv* asf = demux->priv;
demux->filepos=stream_tell(demux->stream);
// Brodcast stream have movi_start==movi_end
// Better test ?
if((demux->movi_start < demux->movi_end) && (demux->filepos>=demux->movi_end)){
demux->stream->eof=1;
return 0;
}
stream_read(demux->stream,asf->packet,asf->packetsize);
if(demux->stream->eof) return 0; // EOF
if(asf->packetsize < 2) return 0; // Packet too short
{
unsigned char* p=asf->packet;
unsigned char* p_end=asf->packet+asf->packetsize;
unsigned char flags=p[0];
unsigned char segtype=p[1];
unsigned padding;
unsigned plen;
unsigned sequence av_unused;
unsigned long time av_unused = 0;
unsigned short duration=0;
int segs=1;
unsigned char segsizetype=0x80;
int seg=-1;
if( mp_msg_test(MSGT_DEMUX,MSGL_DBG2) ){
int i;
for(i=0;i<FFMIN(16, asf->packetsize);i++) printf(" %02X",asf->packet[i]);
printf("\n");
}
// skip ECC data if present by testing bit 7 of flags
// 1xxxbbbb -> ecc data present, skip bbbb byte(s)
// 0xxxxxxx -> payload parsing info starts
if (flags & 0x80)
{
p += (flags & 0x0f)+1;
if (p+1 >= p_end) return 0; // Packet too short
flags = p[0];
segtype = p[1];
}
//if(segtype!=0x5d) printf("Warning! packet[4] != 0x5d \n");
p+=2; // skip flags & segtype
// Read packet size (plen):
if(!check_varlen(p, p_end, flags>> 5)) return 0; // Not enough data
plen = read_varlen(&p, flags >> 5, 0);
// Read sequence:
if(!check_varlen(p, p_end, flags>> 1)) return 0; // Not enough data
sequence = read_varlen(&p, flags >> 1, 0);
// Read padding size (padding):
if(!check_varlen(p, p_end, flags>> 3)) return 0; // Not enough data
padding = read_varlen(&p, flags >> 3, 0);
if(((flags>>5)&3)!=0){
// Explicit (absoulte) packet size
mp_dbg(MSGT_DEMUX,MSGL_DBG2,"Explicit packet size specified: %d \n",plen);
if(plen>asf->packetsize) mp_msg(MSGT_DEMUX,MSGL_V,"Warning! plen>packetsize! (%d>%d) \n",plen,asf->packetsize);
} else {
// Padding (relative) size
plen=asf->packetsize-padding;
}
// Read time & duration:
if (p+5 >= p_end) return 0; // Packet too short
time = AV_RL32(p); p+=4;
duration = AV_RL16(p); p+=2;
// Read payload flags:
if(flags&1){
// multiple sub-packets
if (p >= p_end) return 0; // Packet too short
segsizetype=p[0]>>6;
segs=p[0] & 0x3F;
++p;
}
mp_dbg(MSGT_DEMUX,MSGL_DBG4,"%08"PRIu64": flag=%02X segs=%d seq=%u plen=%u pad=%u time=%ld dur=%d\n",
(uint64_t)demux->filepos,flags,segs,sequence,plen,padding,time,duration);
for(seg=0;seg<segs;seg++){
//ASF_segmhdr_t* sh;
unsigned char streamno;
unsigned int seq;
unsigned int x; // offset or timestamp
unsigned int rlen;
//
int len;
uint64_t time2=0;
int keyframe=0;
if(p>=p_end) {
mp_msg(MSGT_DEMUX,MSGL_V,"Warning! invalid packet 1, aborting parsing...\n");
break;
}
if( mp_msg_test(MSGT_DEMUX,MSGL_DBG2) ){
int i;
printf("seg %d:",seg);
for(i=0;i<FFMIN(16, p_end - p);i++) printf(" %02X",p[i]);
printf("\n");
}
streamno=p[0]&0x7F;
if(p[0]&0x80) keyframe=1;
p++;
// Read media object number (seq):
if(!check_varlen(p, p_end, segtype >> 4)) break; // Not enough data
seq = read_varlen(&p, segtype >> 4, 0);
// Read offset or timestamp:
if(!check_varlen(p, p_end, segtype >> 2)) break; // Not enough data
x = read_varlen(&p, segtype >> 2, 0);
// Read replic.data len:
if(!check_varlen(p, p_end, segtype)) break; // Not enough data
rlen = read_varlen(&p, segtype, 0);
// printf("### rlen=%d \n",rlen);
if (rlen > p_end - p) {
mp_msg(MSGT_DEMUX, MSGL_V, "invalid rlen=%u\n", rlen);
break;
}
switch(rlen){
case 0x01: // 1 = special, means grouping
//printf("grouping: %02X \n",p[0]);
++p; // skip PTS delta
break;
default:
if(rlen>=8){
p+=4; // skip object size
if (p+3 >= p_end) break; // Packet too short
time2=AV_RL32(p); // read PTS
if (asf->asf_is_dvr_ms)
get_payload_extension_data(demux, &p, streamno, seq, &keyframe, &time2);
p+=rlen-4;
} else {
mp_msg(MSGT_DEMUX,MSGL_V,"unknown segment type (rlen): 0x%02X \n",rlen);
time2=0; // unknown
p+=rlen;
}
}
if(flags&1){
// multiple segments
if(!check_varlen(p, p_end, segsizetype)) break; // Not enough data
len = read_varlen(&p, segsizetype, plen-(p-asf->packet));
} else {
// single segment
len=plen-(p-asf->packet);
}
if(len<0 || (p+len)>p_end){
mp_msg(MSGT_DEMUX,MSGL_V,"ASF_parser: warning! segment len=%d\n",len);
len = p_end - p;
}
mp_dbg(MSGT_DEMUX,MSGL_DBG4," seg #%d: streamno=%d seq=%d type=%02X len=%d\n",seg,streamno,seq,rlen,len);
switch(rlen){
case 0x01:
// GROUPING:
//printf("ASF_parser: warning! grouping (flag=1) not yet supported!\n",len);
//printf(" total: %d \n",len);
while(len>0){
int len2=p[0];
p++;
//printf(" group part: %d bytes\n",len2);
if(len2 > len - 1 || len2 < 0) break; // Not enough data
len2 = FFMIN(len2, asf->packetsize);
demux_asf_read_packet(demux,p,len2,streamno,seq,x,duration,-1,keyframe);
p+=len2;
len-=len2+1;
++seq;
}
if(len!=0){
mp_msg(MSGT_DEMUX,MSGL_V,"ASF_parser: warning! groups total != len\n");
}
break;
default:
// NO GROUPING:
//printf("fragment offset: %d \n",sh->x);
if (len <= 0) break;
if (!asf->asf_is_dvr_ms || asf->found_first_key_frame) {
len = FFMIN(len, asf->packetsize);
demux_asf_read_packet(demux,p,len,streamno,seq,time2,duration,x,keyframe);
}
p+=len;
break;
}
} // for segs
return 1; // success
}
mp_msg(MSGT_DEMUX,MSGL_V,"%08"PRIX64": UNKNOWN TYPE %02X %02X %02X %02X %02X...\n",(int64_t)demux->filepos,asf->packet[0],asf->packet[1],asf->packet[2],asf->packet[3],asf->packet[4]);
return 0;
}
#include "stheader.h"
static void demux_seek_asf(demuxer_t *demuxer,float rel_seek_secs,float audio_delay,int flags){
struct asf_priv* asf = demuxer->priv;
demux_stream_t *d_audio=demuxer->audio;
demux_stream_t *d_video=demuxer->video;
sh_audio_t *sh_audio=d_audio->sh;
// sh_video_t *sh_video=d_video->sh;
//FIXME: OFF_T - didn't test ASF case yet (don't have a large asf...)
//FIXME: reports good or bad to steve@daviesfam.org please
//================= seek in ASF ==========================
float p_rate=asf->packetrate; // packets / sec
int64_t rel_seek_packs=(flags&SEEK_FACTOR)? // FIXME: int may be enough?
(rel_seek_secs*(demuxer->movi_end-demuxer->movi_start)/asf->packetsize):
(rel_seek_secs*p_rate);
int64_t rel_seek_bytes=rel_seek_packs*asf->packetsize;
int64_t newpos;
//printf("ASF: packs: %d duration: %d \n",(int)fileh.packets,*((int*)&fileh.duration));
// printf("ASF_seek: %d secs -> %d packs -> %d bytes \n",
// rel_seek_secs,rel_seek_packs,rel_seek_bytes);
newpos=((flags&SEEK_ABSOLUTE)?demuxer->movi_start:demuxer->filepos)+rel_seek_bytes;
if(newpos<0 || newpos<demuxer->movi_start) newpos=demuxer->movi_start;
// printf("\r -- asf: newpos=%d -- \n",newpos);
stream_seek(demuxer->stream,newpos);
if (asf->asf_is_dvr_ms) asf->dvr_last_vid_pts = 0.0f;
if (d_video->id >= 0)
ds_fill_buffer(d_video);
if(sh_audio){
ds_fill_buffer(d_audio);
}
if (d_video->id >= 0)
while(1){
if(sh_audio && !d_audio->eof){
float a_pts=d_audio->pts;
a_pts+=(ds_tell_pts(d_audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
// sync audio:
if (d_video->pts > a_pts){
skip_audio_frame(sh_audio);
// if(!ds_fill_buffer(d_audio)) sh_audio=NULL; // skip audio. EOF?
continue;
}
}
if (d_video->keyframe)
break;
if(!ds_fill_buffer(d_video)) break; // skip frame. EOF?
}
}
static int demux_asf_control(demuxer_t *demuxer,int cmd, void *arg){
struct asf_priv* asf = demuxer->priv;
/* demux_stream_t *d_audio=demuxer->audio;
demux_stream_t *d_video=demuxer->video;
sh_audio_t *sh_audio=d_audio->sh;
sh_video_t *sh_video=d_video->sh;
*/
switch(cmd) {
case DEMUXER_CTRL_GET_TIME_LENGTH:
*((double *)arg)=asf->movielength;
return DEMUXER_CTRL_OK;
default:
return DEMUXER_CTRL_NOTIMPL;
}
}
static demuxer_t* demux_open_asf(demuxer_t* demuxer)
{
struct asf_priv* asf = demuxer->priv;
sh_video_t *sh_video=NULL;
//---- ASF header:
if(!asf) return NULL;
init_priv(asf);
if (!read_asf_header(demuxer,asf))
return NULL;
stream_reset(demuxer->stream);
stream_seek(demuxer->stream,demuxer->movi_start);
// demuxer->idx_pos=0;
// demuxer->endpos=avi_header.movi_end;
if(demuxer->video->id != -2) {
if(!ds_fill_buffer(demuxer->video)){
mp_msg(MSGT_DEMUXER, MSGL_WARN, "ASF: %s",
mp_gtext("No video stream found.\n"));
demuxer->video->sh=NULL;
//printf("ASF: missing video stream!? contact the author, it may be a bug :(\n");
} else {
sh_video=demuxer->video->sh;
sh_video->fps=1000.0f; sh_video->frametime=0.001f;
if (asf->asf_is_dvr_ms) {
sh_video->bih->biWidth = 0;
sh_video->bih->biHeight = 0;
}
}
}
if(demuxer->audio->id!=-2){
mp_tmsg(MSGT_DEMUXER,MSGL_V,"ASF: Searching for audio stream (id:%d).\n",demuxer->audio->id);
if(!ds_fill_buffer(demuxer->audio)){
mp_msg(MSGT_DEMUXER, MSGL_INFO, "ASF: %s",
mp_gtext("No audio stream found -> no sound.\n"));
demuxer->audio->sh=NULL;
}
}
if(!demuxer->stream->seek)
demuxer->seekable=0;
return demuxer;
}
static void demux_close_asf(demuxer_t *demuxer) {
struct asf_priv* asf = demuxer->priv;
if (!asf) return;
free(asf->aud_repdata_sizes);
free(asf->vid_repdata_sizes);
free(asf->packet);
free(asf);
}
const demuxer_desc_t demuxer_desc_asf = {
"ASF demuxer",
"asf",
"ASF",
"A'rpi",
"ASF, WMV, WMA",
DEMUXER_TYPE_ASF,
1, // safe autodetect
asf_check_header,
demux_asf_fill_buffer,
demux_open_asf,
demux_close_asf,
demux_seek_asf,
demux_asf_control
};
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