mirror of
https://github.com/mpv-player/mpv
synced 2024-12-21 06:14:32 +00:00
Realaudio support
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10035 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rtognimp
parent
5b0d3c5971
commit
6bbe716958
302
libmpdemux/demux_realaud.c
Normal file
302
libmpdemux/demux_realaud.c
Normal file
@ -0,0 +1,302 @@
|
||||
/*
|
||||
Realaudio demuxer for MPlayer
|
||||
(c) 2003 Roberto Togni
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "config.h"
|
||||
#include "mp_msg.h"
|
||||
#include "help_mp.h"
|
||||
|
||||
#include "stream.h"
|
||||
#include "demuxer.h"
|
||||
#include "stheader.h"
|
||||
#include "bswap.h"
|
||||
|
||||
|
||||
#define FOURCC_DOTRA mmioFOURCC('.','r','a', 0xfd)
|
||||
#define FOURCC_144 mmioFOURCC('1','4','_','4')
|
||||
#define FOURCC_288 mmioFOURCC('2','8','_','8')
|
||||
#define FOURCC_DNET mmioFOURCC('d','n','e','t')
|
||||
#define FOURCC_LPCJ mmioFOURCC('l','p','c','J')
|
||||
|
||||
|
||||
typedef struct {
|
||||
unsigned short version;
|
||||
unsigned int dotranum;
|
||||
unsigned int data_size;
|
||||
unsigned short version2;
|
||||
unsigned int hdr_size;
|
||||
unsigned short codec_flavor;
|
||||
unsigned int coded_framesize;
|
||||
unsigned short sub_packet_h;
|
||||
unsigned short frame_size;
|
||||
unsigned short sub_packet_size;
|
||||
char genr[4];
|
||||
} ra_priv_t;
|
||||
|
||||
|
||||
|
||||
int ra_check_file(demuxer_t* demuxer)
|
||||
{
|
||||
unsigned int chunk_id;
|
||||
|
||||
stream_reset(demuxer->stream);
|
||||
stream_seek(demuxer->stream, 0);
|
||||
|
||||
chunk_id = stream_read_dword_le(demuxer->stream);
|
||||
if (chunk_id == FOURCC_DOTRA)
|
||||
return 1;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
void hexdump(char *, unsigned long);
|
||||
|
||||
// return value:
|
||||
// 0 = EOF or no stream found
|
||||
// 1 = successfully read a packet
|
||||
int demux_ra_fill_buffer(demuxer_t *demuxer)
|
||||
{
|
||||
ra_priv_t *ra_priv = demuxer->priv;
|
||||
int len;
|
||||
int timestamp;
|
||||
int flags;
|
||||
demux_stream_t *ds = demuxer->audio;
|
||||
sh_audio_t *sh = ds->sh;
|
||||
WAVEFORMATEX *wf = sh->wf;
|
||||
demux_packet_t *dp;
|
||||
|
||||
if (demuxer->stream->eof)
|
||||
return 0;
|
||||
|
||||
len = wf->nBlockAlign;
|
||||
demuxer->filepos = stream_tell(demuxer->stream);
|
||||
|
||||
dp = new_demux_packet(len);
|
||||
stream_read(demuxer->stream, dp->buffer, len);
|
||||
|
||||
if (sh->format == 0x2000) {
|
||||
// if DNET, swap bytes, as DNET is byte-swapped AC3:
|
||||
char *ptr = dp->buffer;
|
||||
int i;
|
||||
for (i = 0; i < len; i += 2) {
|
||||
const char tmp = ptr[0];
|
||||
ptr[0] = ptr[1];
|
||||
ptr[1] = tmp;
|
||||
ptr += 2;
|
||||
}
|
||||
}
|
||||
dp->pts = demuxer->filepos / ra_priv->data_size;;
|
||||
dp->pos = demuxer->filepos;
|
||||
dp->flags = 0;
|
||||
ds_add_packet(ds, dp);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
|
||||
extern void print_wave_header(WAVEFORMATEX *h);
|
||||
|
||||
|
||||
|
||||
void demux_open_ra(demuxer_t* demuxer)
|
||||
{
|
||||
ra_priv_t* ra_priv = demuxer->priv;
|
||||
sh_audio_t *sh;
|
||||
int i;
|
||||
char *buf;
|
||||
|
||||
if ((ra_priv = (ra_priv_t *)malloc(sizeof(ra_priv_t))) == NULL) {
|
||||
mp_msg(MSGT_DEMUX, MSGL_ERR, "[RealAudio] Can't allocate memory for private data.\n");
|
||||
return NULL;
|
||||
}
|
||||
memset(ra_priv, 0, sizeof(ra_priv_t));
|
||||
|
||||
demuxer->priv = ra_priv;
|
||||
sh = new_sh_audio(demuxer, 0);
|
||||
demuxer->audio->id = 0;
|
||||
sh->ds=demuxer->audio;
|
||||
demuxer->audio->sh = sh;
|
||||
|
||||
ra_priv->version = stream_read_word(demuxer->stream);
|
||||
mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] File version: %d\n", ra_priv->version);
|
||||
if ((ra_priv->version < 3) || (ra_priv->version > 4)) {
|
||||
mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] ra version %d is not supported yet, please "
|
||||
"contact MPlayer developers\n", ra_priv->version);
|
||||
return NULL;
|
||||
}
|
||||
if (ra_priv->version == 3) {
|
||||
ra_priv->hdr_size = stream_read_word(demuxer->stream);
|
||||
stream_skip(demuxer->stream, 10);
|
||||
ra_priv->data_size = stream_read_dword(demuxer->stream);
|
||||
} else {
|
||||
stream_skip(demuxer->stream, 2);
|
||||
ra_priv->dotranum = stream_read_dword(demuxer->stream);
|
||||
ra_priv->data_size = stream_read_dword(demuxer->stream);
|
||||
ra_priv->version2 = stream_read_word(demuxer->stream);
|
||||
ra_priv->hdr_size = stream_read_dword(demuxer->stream);
|
||||
ra_priv->codec_flavor = stream_read_word(demuxer->stream);
|
||||
ra_priv->coded_framesize = stream_read_dword(demuxer->stream);
|
||||
stream_skip(demuxer->stream, 4); // data size?
|
||||
stream_skip(demuxer->stream, 8);
|
||||
ra_priv->sub_packet_h = stream_read_word(demuxer->stream);
|
||||
ra_priv->frame_size = stream_read_word(demuxer->stream);
|
||||
mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] Frame size: %d\n", ra_priv->frame_size);
|
||||
ra_priv->sub_packet_size = stream_read_word(demuxer->stream);
|
||||
mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] Sub packet size: %d\n", ra_priv->sub_packet_size);
|
||||
stream_skip(demuxer->stream, 2);
|
||||
sh->samplerate = stream_read_word(demuxer->stream);
|
||||
stream_skip(demuxer->stream, 2);
|
||||
sh->samplesize = stream_read_word(demuxer->stream);
|
||||
sh->channels = stream_read_word(demuxer->stream);
|
||||
mp_msg(MSGT_DEMUX,MSGL_V,"[RealAudio] %d channel, %d bit, %dHz\n", sh->channels,
|
||||
sh->samplesize, sh->samplerate);
|
||||
i = stream_read_char(demuxer->stream);
|
||||
*((unsigned int *)(ra_priv->genr)) = stream_read_dword(demuxer->stream);
|
||||
if (i != 4) {
|
||||
mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] Genr size is not 4 (%d), please report to "
|
||||
"MPlayer developers\n", i);
|
||||
stream_skip(demuxer->stream, i - 4);
|
||||
}
|
||||
i = stream_read_char(demuxer->stream);
|
||||
sh->format = stream_read_dword_le(demuxer->stream);
|
||||
if (i != 4) {
|
||||
mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] FourCC size is not 4 (%d), please report to "
|
||||
"MPlayer developers\n", i);
|
||||
stream_skip(demuxer->stream, i - 4);
|
||||
}
|
||||
stream_skip(demuxer->stream, 3);
|
||||
}
|
||||
|
||||
if ((i = stream_read_char(demuxer->stream)) != 0) {
|
||||
buf = malloc(i+1);
|
||||
stream_read(demuxer->stream, buf, i);
|
||||
buf[i] = 0;
|
||||
demux_info_add(demuxer, "Title", buf);
|
||||
free(buf);
|
||||
}
|
||||
if ((i = stream_read_char(demuxer->stream)) != 0) {
|
||||
buf = malloc(i+1);
|
||||
stream_read(demuxer->stream, buf, i);
|
||||
buf[i] = 0;
|
||||
demux_info_add(demuxer, "Author", buf);
|
||||
free(buf);
|
||||
}
|
||||
if ((i = stream_read_char(demuxer->stream)) != 0) {
|
||||
buf = malloc(i+1);
|
||||
stream_read(demuxer->stream, buf, i);
|
||||
buf[i] = 0;
|
||||
demux_info_add(demuxer, "Copyright", buf);
|
||||
free(buf);
|
||||
}
|
||||
|
||||
if ((i = stream_read_char(demuxer->stream)) != 0)
|
||||
mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] Last header byte is not zero!\n");
|
||||
|
||||
if (ra_priv->version == 3) {
|
||||
stream_skip(demuxer->stream, 1);
|
||||
i = stream_read_char(demuxer->stream);
|
||||
sh->format = stream_read_dword_le(demuxer->stream);
|
||||
if (i != 4) {
|
||||
mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] FourCC size is not 4 (%d), please report to "
|
||||
"MPlayer developers\n", i);
|
||||
stream_skip(demuxer->stream, i - 4);
|
||||
}
|
||||
// stream_skip(demuxer->stream, 3);
|
||||
|
||||
if (sh->format != FOURCC_LPCJ) {
|
||||
mp_msg(MSGT_DEMUX,MSGL_WARN,"[RealAudio] Version 3 with FourCC %8x, please report to "
|
||||
"MPlayer developers\n", sh->format);
|
||||
}
|
||||
|
||||
sh->channels = 1;
|
||||
sh->samplesize = 16;
|
||||
sh->samplerate = 8000;
|
||||
ra_priv->frame_size = 240;
|
||||
sh->format = FOURCC_144;
|
||||
}
|
||||
|
||||
/* Fill WAVEFORMATEX */
|
||||
sh->wf = malloc(sizeof(WAVEFORMATEX));
|
||||
memset(sh->wf, 0, sizeof(WAVEFORMATEX));
|
||||
sh->wf->nChannels = sh->channels;
|
||||
sh->wf->wBitsPerSample = sh->samplesize;
|
||||
sh->wf->nSamplesPerSec = sh->samplerate;
|
||||
sh->wf->nAvgBytesPerSec = sh->samplerate*sh->samplesize/8;
|
||||
sh->wf->nBlockAlign = ra_priv->frame_size;
|
||||
sh->wf->cbSize = 0;
|
||||
sh->wf->wFormatTag = sh->format;
|
||||
|
||||
switch (sh->format) {
|
||||
case FOURCC_144:
|
||||
mp_msg(MSGT_DEMUX,MSGL_V,"Audio: 14_4\n");
|
||||
sh->wf->cbSize = 10/*+codecdata_length*/;
|
||||
sh->wf = realloc(sh->wf, sizeof(WAVEFORMATEX)+sh->wf->cbSize);
|
||||
((short*)(sh->wf+1))[0]=0;
|
||||
((short*)(sh->wf+1))[1]=240;
|
||||
((short*)(sh->wf+1))[2]=0;
|
||||
((short*)(sh->wf+1))[3]=0x14;
|
||||
((short*)(sh->wf+1))[4]=0;
|
||||
break;
|
||||
case FOURCC_288:
|
||||
mp_msg(MSGT_DEMUX,MSGL_V,"Audio: 28_8\n");
|
||||
sh->wf->cbSize = 8/*+codecdata_length*/;
|
||||
sh->wf = realloc(sh->wf, sizeof(WAVEFORMATEX)+sh->wf->cbSize);
|
||||
((short*)(sh->wf+1))[0]=0;
|
||||
((short*)(sh->wf+1))[1]=ra_priv->sub_packet_h;
|
||||
((short*)(sh->wf+1))[2]=ra_priv->codec_flavor;
|
||||
((short*)(sh->wf+1))[3]=ra_priv->coded_framesize;
|
||||
((short*)(sh->wf+1))[4]=0;
|
||||
break;
|
||||
case FOURCC_DNET:
|
||||
mp_msg(MSGT_DEMUX,MSGL_V,"Audio: DNET -> AC3\n");
|
||||
sh->format = 0x2000;
|
||||
break;
|
||||
default:
|
||||
mp_msg(MSGT_DEMUX,MSGL_V,"Audio: Unknown (%d)\n", sh->format);
|
||||
}
|
||||
|
||||
print_wave_header(sh->wf);
|
||||
|
||||
/* disable seeking */
|
||||
demuxer->seekable = 0;
|
||||
|
||||
if(!ds_fill_buffer(demuxer->audio))
|
||||
mp_msg(MSGT_DEMUXER,MSGL_INFO,"[RealAudio] No data.\n");
|
||||
}
|
||||
|
||||
|
||||
|
||||
void demux_close_ra(demuxer_t *demuxer)
|
||||
{
|
||||
ra_priv_t* ra_priv = demuxer->priv;
|
||||
|
||||
if (ra_priv)
|
||||
free(ra_priv);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
#if 0
|
||||
/* please upload RV10 samples WITH INDEX CHUNK */
|
||||
int demux_seek_ra(demuxer_t *demuxer, float rel_seek_secs, int flags)
|
||||
{
|
||||
real_priv_t *priv = demuxer->priv;
|
||||
demux_stream_t *d_audio = demuxer->audio;
|
||||
sh_audio_t *sh_audio = d_audio->sh;
|
||||
int aid = d_audio->id;
|
||||
int next_offset = 0;
|
||||
int rel_seek_frames = 0;
|
||||
int streams = 0;
|
||||
|
||||
return stream_seek(demuxer->stream, next_offset);
|
||||
}
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user