mirror of
https://github.com/mpv-player/mpv
synced 2024-11-18 21:16:10 +01:00
added AAC ADTS demuxer
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15721 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nicodvb
parent
1c0928d65e
commit
12a755b63b
@ -22,6 +22,7 @@ MPlayer (1.0)
|
||||
* simultaneous audio capture and playback in MPlayer
|
||||
(-tv immediatemode=0) fixed in v4l2
|
||||
* PVR support
|
||||
* AAC ADTS demuxer
|
||||
|
||||
Streaming:
|
||||
* fix streaming of RealAudio files over HTTP
|
||||
|
||||
@ -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 muxer.c muxer_avi.c muxer_mpeg.c demux_asf.c demux_avi.c demux_mov.c parse_mp4.c demux_mpg.c demux_ty.c demux_ty_osd.c demux_pva.c demux_viv.c demuxer.c dvdnav_stream.c open.c parse_es.c stream.c stream_file.c stream_netstream.c stream_vcd.c stream_null.c stream_ftp.c stream_smb.c stream_vstream.c tv.c tvi_dummy.c tvi_v4l.c tvi_v4l2.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 demux_ogg.c cdda.c demux_rawaudio.c demux_rawvideo.c cddb.c cdinfo.c demux_rawdv.c ai_alsa.c ai_alsa1x.c ai_oss.c audio_in.c demux_smjpeg.c demux_lmlm4.c cue_read.c extension.c demux_gif.c demux_ts.c demux_realaud.c url.c muxer_rawvideo.c demux_lavf.c demux_nsv.c demux_vqf.c stream_dvd.c stream_livedotcom.c
|
||||
SRCS = mp3_hdr.c video.c mpeg_hdr.c cache2.c asfheader.c aviheader.c aviprint.c muxer.c muxer_avi.c muxer_mpeg.c demux_asf.c demux_avi.c demux_mov.c parse_mp4.c demux_mpg.c demux_ty.c demux_ty_osd.c demux_pva.c demux_viv.c demuxer.c dvdnav_stream.c open.c parse_es.c stream.c stream_file.c stream_netstream.c stream_vcd.c stream_null.c stream_ftp.c stream_smb.c stream_vstream.c tv.c tvi_dummy.c tvi_v4l.c tvi_v4l2.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 demux_ogg.c cdda.c demux_rawaudio.c demux_rawvideo.c cddb.c cdinfo.c demux_rawdv.c ai_alsa.c ai_alsa1x.c ai_oss.c audio_in.c demux_smjpeg.c demux_lmlm4.c cue_read.c extension.c demux_gif.c demux_ts.c demux_realaud.c url.c muxer_rawvideo.c demux_lavf.c demux_nsv.c demux_vqf.c stream_dvd.c stream_livedotcom.c demux_aac.c
|
||||
ifeq ($(XMMS_PLUGINS),yes)
|
||||
SRCS += demux_xmms.c
|
||||
endif
|
||||
|
||||
255
libmpdemux/demux_aac.c
Normal file
255
libmpdemux/demux_aac.c
Normal file
@ -0,0 +1,255 @@
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "config.h"
|
||||
#include "mp_msg.h"
|
||||
#include "help_mp.h"
|
||||
|
||||
#include "stream.h"
|
||||
#include "demuxer.h"
|
||||
#include "parse_es.h"
|
||||
#include "stheader.h"
|
||||
|
||||
#include "bswap.h"
|
||||
#include "../unrarlib.h"
|
||||
#include "ms_hdr.h"
|
||||
|
||||
extern void resync_audio_stream(sh_audio_t *sh_audio);
|
||||
|
||||
typedef struct {
|
||||
uint8_t *buf;
|
||||
uint64_t size; /// amount of time of data packets pushed to demuxer->audio (in bytes)
|
||||
float time; /// amount of time elapsed based upon samples_per_frame/sample_rate (in milliseconds)
|
||||
float last_pts; /// last pts seen
|
||||
int bitrate; /// bitrate computed as size/time
|
||||
} aac_priv_t;
|
||||
|
||||
/// \param srate (out) sample rate
|
||||
/// \param num (out) number of audio frames in this ADTS frame
|
||||
/// \return size of the ADTS frame in bytes
|
||||
/// aac_parse_frames needs a buffer at least 8 bytes long
|
||||
int aac_parse_frame(uint8_t *buf, int *srate, int *num)
|
||||
{
|
||||
int i = 0, sr, fl = 0, id;
|
||||
static int srates[] = {96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 0, 0, 0};
|
||||
|
||||
if((buf[i] != 0xFF) || ((buf[i+1] & 0xF6) != 0xF0))
|
||||
return 0;
|
||||
|
||||
id = (buf[i+1] >> 3) & 0x01; //id=1 mpeg2, 0: mpeg4
|
||||
sr = (buf[i+2] >> 2) & 0x0F;
|
||||
if(sr > 11)
|
||||
return 0;
|
||||
*srate = srates[sr];
|
||||
|
||||
fl = ((buf[i+3] & 0x03) << 11) | (buf[i+4] << 3) | ((buf[i+5] >> 5) & 0x07);
|
||||
*num = (buf[i+6] & 0x02) + 1;
|
||||
|
||||
return fl;
|
||||
}
|
||||
|
||||
static int demux_aac_init(demuxer_t *demuxer)
|
||||
{
|
||||
aac_priv_t *priv;
|
||||
|
||||
priv = calloc(1, sizeof(aac_priv_t));
|
||||
if(!priv)
|
||||
return 0;
|
||||
|
||||
priv->buf = (uint8_t*) malloc(8);
|
||||
if(!priv->buf)
|
||||
return 0;
|
||||
|
||||
demuxer->priv = priv;
|
||||
return 1;
|
||||
}
|
||||
|
||||
void demux_close_aac(demuxer_t *demuxer)
|
||||
{
|
||||
aac_priv_t *priv = (aac_priv_t *) demuxer->priv;
|
||||
|
||||
if(!priv)
|
||||
return;
|
||||
|
||||
if(priv->buf)
|
||||
free(priv->buf);
|
||||
|
||||
free(demuxer->priv);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
/// returns 1 if it finds 8 ADTS frames in 32768 bytes, 0 otherwise
|
||||
int demux_aac_probe(demuxer_t *demuxer)
|
||||
{
|
||||
int cnt = 0, c, len, srate, num;
|
||||
off_t init, probed;
|
||||
aac_priv_t *priv;
|
||||
|
||||
if(! demux_aac_init(demuxer))
|
||||
{
|
||||
mp_msg(MSGT_DEMUX, MSGL_ERR, "COULDN'T INIT aac_demux, exit\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
priv = (aac_priv_t *) demuxer->priv;
|
||||
|
||||
init = probed = stream_tell(demuxer->stream);
|
||||
while(probed-init <= 32768 && cnt < 8)
|
||||
{
|
||||
c = 0;
|
||||
while(c != 0xFF)
|
||||
{
|
||||
c = stream_read_char(demuxer->stream);
|
||||
if(c < 0)
|
||||
goto fail;
|
||||
}
|
||||
priv->buf[0] = 0xFF;
|
||||
if(stream_read(demuxer->stream, &(priv->buf[1]), 7) < 7)
|
||||
goto fail;
|
||||
|
||||
len = aac_parse_frame(priv->buf, &srate, &num);
|
||||
if(len > 0)
|
||||
{
|
||||
cnt++;
|
||||
stream_skip(demuxer->stream, len - 8);
|
||||
}
|
||||
probed = stream_tell(demuxer->stream);
|
||||
}
|
||||
|
||||
stream_seek(demuxer->stream, init);
|
||||
if(cnt < 8)
|
||||
goto fail;
|
||||
|
||||
mp_msg(MSGT_DEMUX, MSGL_V, "demux_aac_probe, INIT: %llu, PROBED: %llu, cnt: %d\n", init, probed, cnt);
|
||||
return 1;
|
||||
|
||||
fail:
|
||||
mp_msg(MSGT_DEMUX, MSGL_V, "demux_aac_probe, failed to detect an AAC stream\n");
|
||||
demux_close_aac(demuxer);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int demux_aac_open(demuxer_t *demuxer)
|
||||
{
|
||||
sh_audio_t *sh;
|
||||
|
||||
sh = new_sh_audio(demuxer, 0);
|
||||
sh->ds = demuxer->audio;
|
||||
sh->format = mmioFOURCC('M', 'P', '4', 'A');
|
||||
demuxer->audio->sh = sh;
|
||||
|
||||
demuxer->filepos = stream_tell(demuxer->stream);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int demux_aac_fill_buffer(demuxer_t *demuxer)
|
||||
{
|
||||
aac_priv_t *priv = (aac_priv_t *) demuxer->priv;
|
||||
demux_packet_t *dp;
|
||||
int c1, c2, len, srate, num;
|
||||
float tm = 0;
|
||||
|
||||
if(demuxer->stream->eof || (demuxer->movi_end && stream_tell(demuxer->stream) >= demuxer->movi_end))
|
||||
return 0;
|
||||
|
||||
while(! demuxer->stream->eof)
|
||||
{
|
||||
c1 = c2 = 0;
|
||||
while(c1 != 0xFF)
|
||||
{
|
||||
c1 = stream_read_char(demuxer->stream);
|
||||
if(c1 < 0)
|
||||
return 0;
|
||||
}
|
||||
c2 = stream_read_char(demuxer->stream);
|
||||
if(c2 < 0)
|
||||
return 0;
|
||||
if((c2 & 0xF6) != 0xF0)
|
||||
continue;
|
||||
|
||||
priv->buf[0] = (unsigned char) c1;
|
||||
priv->buf[1] = (unsigned char) c2;
|
||||
if(stream_read(demuxer->stream, &(priv->buf[2]), 6) < 6)
|
||||
return 0;
|
||||
|
||||
len = aac_parse_frame(priv->buf, &srate, &num);
|
||||
if(len > 0)
|
||||
{
|
||||
dp = new_demux_packet(len);
|
||||
if(! dp)
|
||||
{
|
||||
mp_msg(MSGT_DEMUX, MSGL_ERR, "fill_buffer, NEW_ADD_PACKET(%d)FAILED\n", len);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
memcpy(dp->buffer, priv->buf, 8);
|
||||
stream_read(demuxer->stream, &(dp->buffer[8]), len-8);
|
||||
if(srate)
|
||||
tm = (float) (num * 1024.0/srate);
|
||||
priv->last_pts += tm;
|
||||
dp->pts = priv->last_pts;
|
||||
//fprintf(stderr, "\nPTS: %.3f\n", dp->pts);
|
||||
ds_add_packet(demuxer->audio, dp);
|
||||
priv->size += len;
|
||||
priv->time += tm;
|
||||
|
||||
priv->bitrate = (int) (priv->size / priv->time);
|
||||
demuxer->filepos = stream_tell(demuxer->stream);
|
||||
|
||||
return len;
|
||||
}
|
||||
else
|
||||
stream_skip(demuxer->stream, -6);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
//This is an almost verbatim copy of high_res_mp3_seek(), from demux_audio.c
|
||||
void demux_aac_seek(demuxer_t *demuxer, float rel_seek_secs, int flags)
|
||||
{
|
||||
aac_priv_t *priv = (aac_priv_t *) demuxer->priv;
|
||||
demux_stream_t *d_audio=demuxer->audio;
|
||||
sh_audio_t *sh_audio=d_audio->sh;
|
||||
float time;
|
||||
|
||||
ds_free_packs(d_audio);
|
||||
|
||||
time = (flags & 1) ? rel_seek_secs - priv->last_pts : rel_seek_secs;
|
||||
if(time < 0)
|
||||
{
|
||||
stream_seek(demuxer->stream, demuxer->movi_start);
|
||||
time = priv->last_pts + time;
|
||||
priv->last_pts = 0;
|
||||
}
|
||||
|
||||
if(time > 0)
|
||||
{
|
||||
int len, nf, srate, num;
|
||||
|
||||
nf = time * sh_audio->samplerate/1024;
|
||||
|
||||
while(nf > 0)
|
||||
{
|
||||
if(stream_read(demuxer->stream,priv->buf, 8) < 8)
|
||||
break;
|
||||
len = aac_parse_frame(priv->buf, &srate, &num);
|
||||
if(len <= 0)
|
||||
{
|
||||
stream_skip(demuxer->stream, -7);
|
||||
continue;
|
||||
}
|
||||
stream_skip(demuxer->stream, len - 8);
|
||||
priv->last_pts += (float) (num*1024.0/srate);
|
||||
nf -= num;
|
||||
}
|
||||
}
|
||||
sh_audio->delay = priv->last_pts - (ds_tell_pts(demuxer->audio)-sh_audio->a_in_buffer_len)/(float)priv->bitrate;
|
||||
resync_audio_stream(sh_audio);
|
||||
}
|
||||
|
||||
@ -157,6 +157,7 @@ extern void demux_close_ra(demuxer_t* demuxer);
|
||||
extern void demux_close_ty(demuxer_t* demuxer);
|
||||
extern void demux_close_lavf(demuxer_t* demuxer);
|
||||
extern void demux_close_vqf(demuxer_t* demuxer);
|
||||
extern void demux_close_aac(demuxer_t* demuxer);
|
||||
#ifdef USE_WIN32DLL
|
||||
extern void demux_close_avs(demuxer_t* demuxer);
|
||||
#endif
|
||||
@ -247,6 +248,8 @@ void free_demuxer(demuxer_t *demuxer){
|
||||
demux_close_ra(demuxer); break;
|
||||
case DEMUXER_TYPE_VQF:
|
||||
demux_close_vqf(demuxer); break;
|
||||
case DEMUXER_TYPE_AAC:
|
||||
demux_close_aac(demuxer); break;
|
||||
#ifdef USE_LIBAVFORMAT
|
||||
case DEMUXER_TYPE_LAVF:
|
||||
demux_close_lavf(demuxer); break;
|
||||
@ -338,6 +341,7 @@ int demux_ts_fill_buffer(demuxer_t *demux);
|
||||
int demux_ra_fill_buffer(demuxer_t *demux);
|
||||
int demux_vqf_fill_buffer(demuxer_t *demux);
|
||||
|
||||
extern int demux_aac_fill_buffer(demuxer_t *demux);
|
||||
extern int demux_demuxers_fill_buffer(demuxer_t *demux,demux_stream_t *ds);
|
||||
extern int demux_ogg_fill_buffer(demuxer_t *d);
|
||||
extern int demux_rawaudio_fill_buffer(demuxer_t* demuxer, demux_stream_t *ds);
|
||||
@ -405,6 +409,7 @@ int demux_fill_buffer(demuxer_t *demux,demux_stream_t *ds){
|
||||
return demux_ts_fill_buffer(demux);
|
||||
case DEMUXER_TYPE_REALAUDIO: return demux_ra_fill_buffer(demux);
|
||||
case DEMUXER_TYPE_VQF: return demux_vqf_fill_buffer(demux);
|
||||
case DEMUXER_TYPE_AAC: return demux_aac_fill_buffer(demux);
|
||||
#ifdef USE_LIBAVFORMAT
|
||||
case DEMUXER_TYPE_LAVF: return demux_lavf_fill_buffer(demux);
|
||||
#endif
|
||||
@ -612,6 +617,8 @@ extern int rawdv_check_file(demuxer_t *demuxer);
|
||||
int avs_check_file(demuxer_t *demuxer, const char *filename);
|
||||
#endif
|
||||
|
||||
extern int demux_aac_open(demuxer_t *demuxer);
|
||||
extern int demux_aac_probe(demuxer_t *demuxer);
|
||||
extern int vivo_check_file(demuxer_t *demuxer);
|
||||
extern void demux_open_vivo(demuxer_t *demuxer);
|
||||
extern int y4m_check_file(demuxer_t *demuxer);
|
||||
@ -1095,6 +1102,14 @@ if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_MPEG_TY)
|
||||
}
|
||||
}
|
||||
#endif
|
||||
//================Try AAC ===============================
|
||||
if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_AAC) {
|
||||
demuxer=new_demuxer(stream,DEMUXER_TYPE_AAC,audio_id,video_id,dvdsub_id);
|
||||
if(! demux_aac_probe(demuxer)) {
|
||||
free_demuxer(demuxer);
|
||||
demuxer = NULL;
|
||||
} else file_format = DEMUXER_TYPE_AAC;
|
||||
}
|
||||
//=============== Unknown, exiting... ===========================
|
||||
if(file_format==DEMUXER_TYPE_UNKNOWN || demuxer == NULL){
|
||||
//mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_FormatNotRecognized); // will be done by mplayer.c after fallback to playlist-parsing
|
||||
@ -1302,6 +1317,10 @@ switch(file_format){
|
||||
if (!demux_open_vqf(demuxer)) return NULL;
|
||||
break;
|
||||
}
|
||||
case DEMUXER_TYPE_AAC: {
|
||||
if (!demux_aac_open(demuxer)) return NULL;
|
||||
break;
|
||||
}
|
||||
#ifdef USE_LIBAVFORMAT
|
||||
case DEMUXER_TYPE_LAVF: {
|
||||
if (!demux_open_lavf(demuxer)) return NULL;
|
||||
@ -1431,6 +1450,7 @@ extern void demux_rawvideo_seek(demuxer_t *demuxer,float rel_seek_secs,int flags
|
||||
extern void demux_xmms_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
|
||||
extern void demux_mkv_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
|
||||
extern void demux_seek_vqf(demuxer_t *demuxer,float rel_seek_secs,int flags);
|
||||
extern void demux_aac_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
|
||||
|
||||
int demux_seek(demuxer_t *demuxer,float rel_seek_secs,int flags){
|
||||
demux_stream_t *d_audio=demuxer->audio;
|
||||
@ -1539,6 +1559,8 @@ switch(demuxer->file_format){
|
||||
case DEMUXER_TYPE_AVS:
|
||||
demux_seek_avs(demuxer,rel_seek_secs,flags); break;
|
||||
#endif
|
||||
case DEMUXER_TYPE_AAC:
|
||||
demux_aac_seek(demuxer,rel_seek_secs,flags); break;
|
||||
|
||||
} // switch(demuxer->file_format)
|
||||
|
||||
|
||||
@ -46,11 +46,12 @@
|
||||
#define DEMUXER_TYPE_NSV 36
|
||||
#define DEMUXER_TYPE_VQF 37
|
||||
#define DEMUXER_TYPE_AVS 38
|
||||
#define DEMUXER_TYPE_AAC 39
|
||||
|
||||
// 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 38
|
||||
#define DEMUXER_TYPE_MAX 39
|
||||
|
||||
#define DEMUXER_TYPE_DEMUXERS (1<<16)
|
||||
// A virtual demuxer type for the network code
|
||||
|
||||
Loading…
Reference in New Issue
Block a user