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BeOS Audio ouput patch by (François Revol <revol at free dot fr>)

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Originally committed as revision 1163 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
François Revol 2002-11-05 00:38:06 +00:00 committed by Michael Niedermayer
parent 95e2ce4aa0
commit dfdfa47cd1
6 changed files with 346 additions and 2 deletions
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3
Makefile
View File

@ -28,6 +28,9 @@ EXT=
PROG=ffmpeg ffplay ffserver
endif
ifeq ($(CONFIG_AUDIO_BEOS),yes)
EXTRALIBS+=-lmedia -lbe
endif
ifeq ($(BUILD_SHARED),yes)
DEP_LIBS=libavcodec/libavcodec.so libav/libavformat.a

11
configure vendored
View File

@ -51,6 +51,7 @@ esac
gprof="no"
v4l="yes"
audio_oss="yes"
audio_beos="no"
network="yes"
zlib="yes"
mp3lame="no"
@ -89,6 +90,8 @@ SHFLAGS=-nostart
# disable linux things
audio_oss="no"
v4l="no"
# enable beos things
audio_beos="yes"
# no need for libm, but the inet stuff
# Check for BONE
if (echo $BEINCLUDES|grep 'headers/be/bone' >/dev/null); then
@ -186,6 +189,8 @@ for opt do
;;
--disable-audio-oss) audio_oss="no"
;;
--disable-audio-beos) audio_beos="no"
;;
--disable-network) network="no"
;;
--disable-zlib) zlib="no"
@ -411,6 +416,7 @@ echo " --cpu=CPU force cpu to CPU [$cpu]"
echo " --disable-mmx disable mmx usage"
echo " --disable-altivec disable AltiVec usage"
echo " --disable-audio-oss disable OSS audio support [default=no]"
echo " --disable-audio-beos disable BeOS audio support [default=no]"
echo " --disable-v4l disable video4linux grabbing [default=no]"
echo " --disable-network disable network support [default=no]"
echo " --disable-zlib disable zlib [default=no]"
@ -559,6 +565,11 @@ if test "$audio_oss" = "yes" ; then
echo "CONFIG_AUDIO_OSS=yes" >> config.mak
fi
if test "$audio_beos" = "yes" ; then
echo "#define CONFIG_AUDIO_BEOS 1" >> $TMPH
echo "CONFIG_AUDIO_BEOS=yes" >> config.mak
fi
if test "$network" = "yes" ; then
echo "#define CONFIG_NETWORK 1" >> $TMPH
echo "CONFIG_NETWORK=yes" >> config.mak

2
ffmpeg.c
View File

@ -145,7 +145,7 @@ static int video_stream_copy = 0;
#define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
#ifndef CONFIG_AUDIO_OSS
#if !defined(CONFIG_AUDIO_OSS) && !defined(CONFIG_AUDIO_BEOS)
const char *audio_device = "none";
#endif
#ifndef CONFIG_VIDEO4LINUX

8
libav/Makefile
View File

@ -29,6 +29,10 @@ ifeq ($(CONFIG_AUDIO_OSS),yes)
OBJS+= audio.o
endif
ifeq ($(CONFIG_AUDIO_BEOS),yes)
OBJS+= beosaudio.o
endif
ifeq ($(CONFIG_NETWORK),yes)
OBJS+= udp.o tcp.o http.o rtsp.o rtp.o rtpproto.o
# BeOS network stuff
@ -61,5 +65,9 @@ installlib: all
%.o: %.c
$(CC) $(CFLAGS) -c -o $@ $<
# BeOS: remove -Wall to get rid of all the "multibyte constant" warnings
%.o: %.cpp
g++ $(subst -Wall,,$(CFLAGS)) -c -o $@ $<
clean:
rm -f *.o *~ *.a

2
libav/allformats.c
View File

@ -56,7 +56,7 @@ void av_register_all(void)
#ifdef CONFIG_VIDEO4LINUX
video_grab_init();
#endif
#ifdef CONFIG_AUDIO_OSS
#if defined(CONFIG_AUDIO_OSS) || defined(CONFIG_AUDIO_BEOS)
audio_init();
#endif

322
libav/beosaudio.cpp Normal file
View File

@ -0,0 +1,322 @@
/*
* BeOS audio play interface
* Copyright (c) 2000, 2001 Fabrice Bellard.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/time.h>
#include <Application.h>
#include <SoundPlayer.h>
extern "C" {
#include "avformat.h"
}
//const char *audio_device = "/dev/dsp";
const char *audio_device = "beosaudio:";
#define AUDIO_BLOCK_SIZE 4096
typedef struct {
int fd;
int sample_rate;
int channels;
int frame_size; /* in bytes ! */
CodecID codec_id;
int flip_left : 1;
UINT8 buffer[AUDIO_BLOCK_SIZE];
int buffer_ptr;
int pipefd; /* the other end of the pipe */
BSoundPlayer *player;
int has_quit; /* signal callbacks not to wait */
} AudioData;
static int own_BApp_created = 0;
/* create the BApplication and Run() it */
static int32 bapp_thread(void *arg)
{
new BApplication("application/x-vnd.ffmpeg");
own_BApp_created = 1;
be_app->Run();
/* kill the process group */
kill(0, SIGINT);
return B_OK;
}
/* called back by BSoundPlayer */
static void audioplay_callback(void *cookie, void *buffer, size_t bufferSize, const media_raw_audio_format &format)
{
AudioData *s;
size_t amount;
unsigned char *buf = (unsigned char *)buffer;
s = (AudioData *)cookie;
if (s->has_quit)
return;
while (bufferSize > 0) {
if ((amount = read(s->pipefd, buf, bufferSize)) < B_OK) {
puts("EPIPE");
snooze(100000);
s->player->SetHasData(false);
return;
}
if (amount == 0) {
snooze(100000);
s->player->SetHasData(false);
return;
}
buf += amount;
bufferSize -= amount;
}
}
static int audio_open(AudioData *s, int is_output)
{
int p[2];
int ret;
media_raw_audio_format format;
if (!is_output)
return -EIO; /* not for now */
ret = pipe(p);
if (ret < 0)
return -EIO;
s->fd = p[is_output?1:0];
s->pipefd = p[is_output?0:1];
if (s->fd < 0) {
perror(is_output?"audio out":"audio in");
return -EIO;
}
/* non blocking mode */
// fcntl(s->fd, F_SETFL, O_NONBLOCK);
// fcntl(s->pipefd, F_SETFL, O_NONBLOCK);
s->frame_size = AUDIO_BLOCK_SIZE;
format = media_raw_audio_format::wildcard;
format.format = media_raw_audio_format::B_AUDIO_SHORT;
format.byte_order = B_HOST_IS_LENDIAN ? B_MEDIA_LITTLE_ENDIAN : B_MEDIA_BIG_ENDIAN;
format.channel_count = s->channels;
format.buffer_size = s->frame_size;
format.frame_rate = s->sample_rate;
s->player = new BSoundPlayer(&format, "ffmpeg output", audioplay_callback);
if (s->player->InitCheck() != B_OK) {
delete s->player;
s->player = NULL;
close(s->fd);
close(s->pipefd);
return -EIO;
}
s->player->SetCookie(s);
s->player->SetVolume(1.0);
s->player->Start();
s->player->SetHasData(true);
return 0;
}
static int audio_close(AudioData *s)
{
s->has_quit = 1;
if (s->player) {
s->player->Stop();
}
if (s->player)
delete s->player;
close(s->pipefd);
close(s->fd);
return 0;
}
/* sound output support */
static int audio_write_header(AVFormatContext *s1)
{
AudioData *s = (AudioData *)s1->priv_data;
AVStream *st;
int ret;
st = s1->streams[0];
s->sample_rate = st->codec.sample_rate;
s->channels = st->codec.channels;
ret = audio_open(s, 1);
if (ret < 0)
return -EIO;
return 0;
}
static int audio_write_packet(AVFormatContext *s1, int stream_index,
UINT8 *buf, int size, int force_pts)
{
AudioData *s = (AudioData *)s1->priv_data;
int len, ret;
while (size > 0) {
len = AUDIO_BLOCK_SIZE - s->buffer_ptr;
if (len > size)
len = size;
memcpy(s->buffer + s->buffer_ptr, buf, len);
s->buffer_ptr += len;
if (s->buffer_ptr >= AUDIO_BLOCK_SIZE) {
for(;;) {
snooze(1000);
ret = write(s->fd, s->buffer, AUDIO_BLOCK_SIZE);
if (ret != 0)
break;
if (ret < 0 && (errno != EAGAIN && errno != EINTR))
return -EIO;
}
s->buffer_ptr = 0;
}
buf += len;
size -= len;
}
return 0;
}
static int audio_write_trailer(AVFormatContext *s1)
{
AudioData *s = (AudioData *)s1->priv_data;
audio_close(s);
return 0;
}
/* grab support */
static int audio_read_header(AVFormatContext *s1, AVFormatParameters *ap)
{
AudioData *s = (AudioData *)s1->priv_data;
AVStream *st;
int ret;
if (!ap || ap->sample_rate <= 0 || ap->channels <= 0)
return -1;
st = av_new_stream(s1, 0);
if (!st) {
return -ENOMEM;
}
s->sample_rate = ap->sample_rate;
s->channels = ap->channels;
ret = audio_open(s, 0);
if (ret < 0) {
av_free(st);
return -EIO;
} else {
/* take real parameters */
st->codec.codec_type = CODEC_TYPE_AUDIO;
st->codec.codec_id = s->codec_id;
st->codec.sample_rate = s->sample_rate;
st->codec.channels = s->channels;
return 0;
}
}
static int audio_read_packet(AVFormatContext *s1, AVPacket *pkt)
{
AudioData *s = (AudioData *)s1->priv_data;
int ret;
if (av_new_packet(pkt, s->frame_size) < 0)
return -EIO;
for(;;) {
ret = read(s->fd, pkt->data, pkt->size);
if (ret > 0)
break;
if (ret == -1 && (errno == EAGAIN || errno == EINTR)) {
av_free_packet(pkt);
pkt->size = 0;
return 0;
}
if (!(ret == 0 || (ret == -1 && (errno == EAGAIN || errno == EINTR)))) {
av_free_packet(pkt);
return -EIO;
}
}
pkt->size = ret;
if (s->flip_left && s->channels == 2) {
int i;
short *p = (short *) pkt->data;
for (i = 0; i < ret; i += 4) {
*p = ~*p;
p += 2;
}
}
return 0;
}
static int audio_read_close(AVFormatContext *s1)
{
AudioData *s = (AudioData *)s1->priv_data;
audio_close(s);
return 0;
}
AVInputFormat audio_in_format = {
"audio_device",
"audio grab and output",
sizeof(AudioData),
NULL,
audio_read_header,
audio_read_packet,
audio_read_close,
NULL,
AVFMT_NOFILE,
};
AVOutputFormat audio_out_format = {
"audio_device",
"audio grab and output",
"",
"",
sizeof(AudioData),
#ifdef WORDS_BIGENDIAN
CODEC_ID_PCM_S16BE,
#else
CODEC_ID_PCM_S16LE,
#endif
CODEC_ID_NONE,
audio_write_header,
audio_write_packet,
audio_write_trailer,
AVFMT_NOFILE,
};
extern "C" {
int audio_init(void)
{
/* needed by libmedia */
if (be_app == NULL) {
resume_thread(spawn_thread(bapp_thread, "ffmpeg BApplication", B_NORMAL_PRIORITY, NULL));
while (!own_BApp_created)
snooze(50000);
}
av_register_input_format(&audio_in_format);
av_register_output_format(&audio_out_format);
return 0;
}
} // "C"