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raw .dv stream demuxer by Alexander Neundorf <neundorf@kde.org>

Browse Source 
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6926 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-08-05 17:21:35 +00:00
parent ad1a8c23fe
commit 4aed347e68
4 changed files with 267 additions and 3 deletions

2
libmpdemux/Makefile
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@ -3,7 +3,7 @@ LIBNAME = libmpdemux.a
include ../config.mak
SRCS = mp3_hdr.c video.c mpeg_hdr.c cache2.c asfheader.c aviheader.c aviprint.c aviwrite.c demux_asf.c demux_avi.c demux_mov.c parse_mp4.c demux_mpg.c demux_viv.c demuxer.c dvdauth.c dvdnav_stream.c open.c parse_es.c stream.c tv.c tvi_dummy.c tvi_v4l.c tvi_bsdbt848.c frequencies.c demux_fli.c demux_real.c demux_y4m.c yuv4mpeg.c yuv4mpeg_ratio.c demux_nuv.c demux_film.c demux_roq.c mf.c demux_mf.c demux_audio.c demux_demuxers.c opt-reg.c mpdemux.c demux_ogg.c demux_bmp.c cdda.c demux_rawaudio.c cddb.c
SRCS = mp3_hdr.c video.c mpeg_hdr.c cache2.c asfheader.c aviheader.c aviprint.c aviwrite.c demux_asf.c demux_avi.c demux_mov.c parse_mp4.c demux_mpg.c demux_viv.c demuxer.c dvdauth.c dvdnav_stream.c open.c parse_es.c stream.c tv.c tvi_dummy.c tvi_v4l.c tvi_bsdbt848.c frequencies.c demux_fli.c demux_real.c demux_y4m.c yuv4mpeg.c yuv4mpeg_ratio.c demux_nuv.c demux_film.c demux_roq.c mf.c demux_mf.c demux_audio.c demux_demuxers.c opt-reg.c mpdemux.c demux_ogg.c demux_bmp.c cdda.c demux_rawaudio.c cddb.c demux_rawdv.c
ifeq ($(STREAMING),yes)
SRCS += asf_streaming.c url.c http.c network.c asf_mmst_streaming.c
ifeq ($(STREAMING_LIVE_DOT_COM),yes)

221
libmpdemux/demux_rawdv.c Normal file
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@ -0,0 +1,221 @@
/*
raw dv file parser for MPlayer
by Alexander Neundorf <neundorf@kde.org>
based on the fli demuxer
LGPL
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "config.h"
#ifdef HAVE_LIBDV095
#include "mp_msg.h"
#include "help_mp.h"
#include "stream.h"
#include "demuxer.h"
#include "stheader.h"
#include <libdv/dv.h>
#include <libdv/dv_types.h>
#define DV_PAL_FRAME_SIZE 144000
#define DV_NTSC_FRAME_SIZE 122000
typedef struct
{
int current_frame;
int frame_size;
int current_filepos;
int frame_number;
dv_decoder_t *decoder;
} rawdv_frames_t;
void demux_seek_rawdv(demuxer_t *demuxer,float rel_seek_secs,int flags)
{
rawdv_frames_t *frames = (rawdv_frames_t *)demuxer->priv;
sh_video_t *sh_video = demuxer->video->sh;
int newpos=(flags&1)?0:frames->current_frame;
if(flags&2)
{
// float 0..1
newpos+=rel_seek_secs*frames->frame_number;
}
else
{
// secs
newpos+=rel_seek_secs*sh_video->fps;
}
if(newpos<0)
newpos=0;
else if(newpos>frames->frame_number)
newpos=frames->frame_number;
frames->current_frame=newpos;
frames->current_filepos=newpos*frames->frame_size;
}
int check_file_rawdv(demuxer_t *demuxer)
{
unsigned char tmp_buffer[DV_PAL_FRAME_SIZE];
int bytes_read=0;
int result=0;
dv_decoder_t *td;
stream_reset(demuxer->stream);
stream_seek(demuxer->stream, 0);
bytes_read=stream_read(demuxer->stream,tmp_buffer,DV_PAL_FRAME_SIZE);
if ((bytes_read!=DV_PAL_FRAME_SIZE) && (bytes_read!=DV_NTSC_FRAME_SIZE))
return 0;
td=dv_decoder_new(TRUE,TRUE,FALSE);
td->quality=DV_QUALITY_BEST;
dv_parse_header(td, tmp_buffer);
if ((( td->num_dif_seqs==10) || (td->num_dif_seqs==12))
&& (td->width==720)
&& ((td->height==576) || (td->height==480)))
result=1;
dv_decoder_free(td);
return result;
}
// return value:
// 0 = EOF or no stream found
// 1 = successfully read a packet
int demux_rawdv_fill_buffer(demuxer_t *demuxer)
{
rawdv_frames_t *frames = (rawdv_frames_t *)demuxer->priv;
demux_packet_t* dp_video=NULL;
sh_video_t *sh_video = demuxer->video->sh;
int bytes_read=0;
// fprintf(stderr,"demux_rawdv_fill_buffer() seek to %d, size: %d\n",frames->current_filepos,frames->frame_size);
// fetch the frame from the file
// first, position the file properly since ds_read_packet() doesn't
// seem to do it, even though it takes a file offset as a parameter
stream_seek(demuxer->stream, frames->current_filepos);
dp_video=new_demux_packet(frames->frame_size);
bytes_read=stream_read(demuxer->stream,dp_video->buffer,frames->frame_size);
if (bytes_read<frames->frame_size)
return 0;
dp_video->pts=frames->current_frame/sh_video->fps;
dp_video->pos=frames->current_filepos;
dp_video->flags=0;
if (demuxer->audio)
{
demux_packet_t* dp_audio=clone_demux_packet(dp_video);
ds_add_packet(demuxer->audio,dp_audio);
}
ds_add_packet(demuxer->video,dp_video);
// get the next frame ready
frames->current_filepos+=frames->frame_size;
frames->current_frame++;
// fprintf(stderr," audio->packs: %d , video->packs: %d \n",demuxer->audio->packs, demuxer->video->packs);
return 1;
}
demuxer_t* demux_open_rawdv(demuxer_t* demuxer)
{
unsigned char dv_frame[DV_PAL_FRAME_SIZE];
sh_video_t *sh_video = NULL;
rawdv_frames_t *frames = (rawdv_frames_t *)malloc(sizeof(rawdv_frames_t));
dv_decoder_t *dv_decoder=NULL;
mp_msg(MSGT_DEMUXER,MSGL_V,"demux_open_rawdv() end_pos %d\n",demuxer->stream->end_pos);
// go back to the beginning
stream_reset(demuxer->stream);
stream_seek(demuxer->stream, 0);
//get the first frame
stream_read(demuxer->stream, dv_frame, DV_PAL_FRAME_SIZE);
//read params from this frame
dv_decoder=dv_decoder_new(TRUE,TRUE,FALSE);
dv_decoder->quality=DV_QUALITY_BEST;
dv_parse_header(dv_decoder, dv_frame);
// create a new video stream header
sh_video = new_sh_video(demuxer, 0);
// make sure the demuxer knows about the new video stream header
// (even though new_sh_video() ought to take care of it)
demuxer->seekable = 1;
demuxer->video->sh = sh_video;
// make sure that the video demuxer stream header knows about its
// parent video demuxer stream (this is getting wacky), or else
// video_read_properties() will choke
sh_video->ds = demuxer->video;
// custom fourcc for internal MPlayer use
// sh_video->format = mmioFOURCC('R', 'A', 'D', 'V');
sh_video->format = mmioFOURCC('D', 'V', 'S', 'D');
sh_video->disp_w = dv_decoder->width;
sh_video->disp_h = dv_decoder->height;
mp_msg(MSGT_DEMUXER,MSGL_V,"demux_open_rawdv() frame_size: %d w: %d h: %d dif_seq: %d system: %d\n",dv_decoder->frame_size,dv_decoder->width, dv_decoder->height,dv_decoder->num_dif_seqs,dv_decoder->system);
sh_video->fps= (dv_decoder->system==e_dv_system_525_60?29.97:25);
sh_video->frametime = 1.0/sh_video->fps;
// emulate BITMAPINFOHEADER for win32 decoders:
sh_video->bih=malloc(sizeof(BITMAPINFOHEADER));
memset(sh_video->bih,0,sizeof(BITMAPINFOHEADER));
sh_video->bih->biSize=40;
sh_video->bih->biWidth = dv_decoder->width;
sh_video->bih->biHeight = dv_decoder->height;
sh_video->bih->biPlanes=1;
sh_video->bih->biBitCount=24;
sh_video->bih->biCompression=sh_video->format; // "DVSD"
sh_video->bih->biSizeImage=sh_video->bih->biWidth*sh_video->bih->biHeight*3;
frames->current_filepos=0;
frames->current_frame=0;
frames->frame_size=dv_decoder->frame_size;
frames->frame_number=demuxer->stream->end_pos/frames->frame_size;
mp_msg(MSGT_DEMUXER,MSGL_V,"demux_open_rawdv() seek to %d, size: %d, dv_dec->frame_size: %d\n",frames->current_filepos,frames->frame_size, dv_decoder->frame_size);
if (dv_decoder->audio != NULL){
sh_audio_t *sh_audio = new_sh_audio(demuxer, 0);
demuxer->audio->sh = sh_audio;
sh_audio->ds = demuxer->audio;
mp_msg(MSGT_DEMUXER,MSGL_V,"demux_open_rawdv() chan: %d samplerate: %d\n",dv_decoder->audio->num_channels,dv_decoder->audio->frequency );
// custom fourcc for internal MPlayer use
sh_audio->format = mmioFOURCC('R', 'A', 'D', 'V');
sh_audio->wf = malloc(sizeof(WAVEFORMATEX));
memset(sh_audio->wf, 0, sizeof(WAVEFORMATEX));
sh_audio->wf->wFormatTag = sh_audio->format;
sh_audio->wf->nChannels = dv_decoder->audio->num_channels;
sh_audio->wf->wBitsPerSample = 16;
sh_audio->wf->nSamplesPerSec = dv_decoder->audio->frequency;
// info about the input stream:
sh_audio->wf->nAvgBytesPerSec = sh_video->fps*dv_decoder->frame_size;
sh_audio->wf->nBlockAlign = dv_decoder->frame_size;
// sh_audio->context=(void*)dv_decoder;
}
stream_reset(demuxer->stream);
stream_seek(demuxer->stream, 0);
dv_decoder_free(dv_decoder); //we keep this in the context of both stream headers
demuxer->priv=frames;
return demuxer;
}
void demux_close_rawdv(demuxer_t* demuxer)
{
rawdv_frames_t *frames = (rawdv_frames_t *)demuxer->priv;
if(frames==0)
return;
free(frames);
}
#endif

44
libmpdemux/demuxer.c
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@ -153,6 +153,7 @@ extern void demux_close_ogg(demuxer_t* demuxer);
extern void demux_close_rtp(demuxer_t* demuxer);
extern void demux_close_demuxers(demuxer_t* demuxer);
extern void demux_close_avi(demuxer_t *demuxer);
extern void demux_close_rawdv(demuxer_t* demuxer);
void free_demuxer(demuxer_t *demuxer){
int i;
@ -176,6 +177,10 @@ void free_demuxer(demuxer_t *demuxer){
demux_close_fli(demuxer); break;
case DEMUXER_TYPE_NUV:
demux_close_nuv(demuxer); break;
#ifdef HAVE_LIBDV095
case DEMUXER_TYPE_RAWDV:
demux_close_rawdv(demuxer); break;
#endif
case DEMUXER_TYPE_AUDIO:
demux_close_audio(demuxer); break;
case DEMUXER_TYPE_OGG:
@ -261,6 +266,8 @@ int demux_vivo_fill_buffer(demuxer_t *demux);
int demux_real_fill_buffer(demuxer_t *demuxer);
int demux_nuv_fill_buffer(demuxer_t *demux);
int demux_rtp_fill_buffer(demuxer_t *demux, demux_stream_t* ds);
int demux_rawdv_fill_buffer(demuxer_t *demuxer);
#ifdef USE_TV
#include "tv.h"
extern tvi_handle_t *tv_handler;
@ -292,6 +299,9 @@ int demux_fill_buffer(demuxer_t *demux,demux_stream_t *ds){
case DEMUXER_TYPE_ASF: return demux_asf_fill_buffer(demux);
case DEMUXER_TYPE_MOV: return demux_mov_fill_buffer(demux,ds);
case DEMUXER_TYPE_VIVO: return demux_vivo_fill_buffer(demux);
#ifdef HAVE_LIBDV095
case DEMUXER_TYPE_RAWDV: return demux_rawdv_fill_buffer(demux);
#endif
case DEMUXER_TYPE_REAL: return demux_real_fill_buffer(demux);
case DEMUXER_TYPE_NUV: return demux_nuv_fill_buffer(demux);
#ifdef USE_TV
@ -506,6 +516,10 @@ int demux_open_mf(demuxer_t* demuxer);
int demux_open_film(demuxer_t* demuxer);
int demux_open_bmp(demuxer_t* demuxer);
int demux_open_roq(demuxer_t* demuxer);
#ifdef HAVE_LIBDV095
int demux_open_rawdv(demuxer_t* demuxer);
extern int check_file_rawdv(demuxer_t *demuxer);
#endif
extern int vivo_check_file(demuxer_t *demuxer);
extern void demux_open_vivo(demuxer_t *demuxer);
@ -780,6 +794,20 @@ if(file_format==DEMUXER_TYPE_MPEG_ES){ // little hack, see above!
mp_msg(MSGT_DEMUXER,MSGL_INFO,MSGTR_DetectedMPEGESfile);
}
}
#ifdef HAVE_LIBDV095
//=============== Try to open raw DV file, as produced by dvgrab --format raw =================
if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_RAWDV)
{
demuxer=new_demuxer(stream,DEMUXER_TYPE_RAWDV,audio_id,video_id,dvdsub_id);
if(check_file_rawdv(demuxer))
{
mp_msg(MSGT_DEMUXER,MSGL_INFO,"Detected RAWDV file format!\n");
file_format=DEMUXER_TYPE_RAWDV;
}
else
free_demuxer(demuxer);
}
#endif
//=============== Try to open as multi file: =================
if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_MF){
demuxer=new_demuxer(stream,DEMUXER_TYPE_MF,audio_id,video_id,dvdsub_id);
@ -821,6 +849,13 @@ d_video=demuxer->video;
demuxer->file_format=file_format;
switch(file_format){
#ifdef HAVE_LIBDV095
case DEMUXER_TYPE_RAWDV:
{
if (!demux_open_rawdv(demuxer)) return NULL;
break;
}
#endif
case DEMUXER_TYPE_RAWAUDIO: {
demux_rawaudio_open(demuxer);
break;
@ -1025,7 +1060,6 @@ demuxer_t* demux_open(stream_t *vs,int file_format,int audio_id,int video_id,int
return vd;
}
int demux_seek_avi(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_asf(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_mpg(demuxer_t *demuxer,float rel_seek_secs,int flags);
@ -1036,6 +1070,10 @@ int demux_seek_mf(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_nuv(demuxer_t *demuxer,float rel_seek_secs,int flags);
void demux_seek_mov(demuxer_t *demuxer,float pts,int flags);
int demux_seek_real(demuxer_t *demuxer,float rel_seek_secs,int flags);
#ifdef HAVE_LIBDV095
int demux_seek_rawdv(demuxer_t *demuxer, float pts, int flags);
#endif
extern void demux_audio_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
extern void demux_demuxers_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
#ifdef HAVE_OGGVORBIS
@ -1078,6 +1116,10 @@ if(!demuxer->seekable){
switch(demuxer->file_format){
#ifdef HAVE_LIBDV095
case DEMUXER_TYPE_RAWDV:
demux_seek_rawdv(demuxer,rel_seek_secs,flags); break;
#endif
case DEMUXER_TYPE_AVI:
demux_seek_avi(demuxer,rel_seek_secs,flags); break;

3
libmpdemux/demuxer.h
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@ -30,10 +30,11 @@
#define DEMUXER_TYPE_BMP 19
#define DEMUXER_TYPE_RAWAUDIO 20
#define DEMUXER_TYPE_RTP 21
#define DEMUXER_TYPE_RAWDV 22
// This should always match the higest demuxer type number.
// Unless you want to disallow users to force the demuxer to some types
#define DEMUXER_TYPE_MIN 0
#define DEMUXER_TYPE_MAX 21
#define DEMUXER_TYPE_MAX 22
#define DEMUXER_TYPE_DEMUXERS (1<<16)
// A virtual demuxer type for the network code