RepoMirrors
/
mpv
mirror of https://github.com/mpv-player/mpv
1
0
Fork 0
Code Issues Releases Wiki Activity

Improved A-V sync, patch by Ed Wildgoose [lists(at)wildgooses<dot>com]. 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13890 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2004-11-07 11:03:50 +00:00
parent 6809f8f51a
commit cd72d2f203
1 changed files with 68 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
libao2/ao_jack.c
View File

@ -10,6 +10,7 @@
*/
#include <stdio.h>
#include <jack/jack.h>
#include "audio_out.h"
#include "audio_out_internal.h"
@ -20,6 +21,8 @@
//#include "bio2jack.h"
static int driver = 0;
long latency = 0;
long approx_bytes_in_jackd = 0;
//bio2jack stuff:
#define ERR_SUCCESS 0
@ -34,6 +37,7 @@ void JACK_Reset(int deviceID); /* free all buffered data and reset several value
long JACK_Write(int deviceID, char *data, unsigned long bytes); /* returns the number of bytes written */
long JACK_GetJackLatency(int deviceID); /* return the latency in milliseconds of jack */
int JACK_SetState(int deviceID, enum status_enum state); /* playing, paused, stopped */
int JACK_SetAllVolume(int deviceID, unsigned int volume);
int JACK_SetVolumeForChannel(int deviceID, unsigned int channel, unsigned int volume);
void JACK_GetVolumeForChannel(int deviceID, unsigned int channel, unsigned int *volume);
//
@ -71,18 +75,47 @@ static int control(int cmd, void *arg)
ao_control_vol_t *vol = (ao_control_vol_t *)arg;
unsigned int l = (int )vol->left,
r = (int )vol->right,
avg_vol = (l + r) / 2,
err = 0;
if((err = JACK_SetVolumeForChannel(driver, 0, l))) {
switch (ao_data.channels) {
case 6:
if((err = JACK_SetVolumeForChannel(driver, 5, avg_vol))) {
mp_msg(MSGT_AO, MSGL_ERR,
"AO: [Jack] Setting left volume failed, error %d\n",err);
"AO: [Jack] Setting lfe volume failed, error %d\n",err);
return CONTROL_ERROR;
}
case 5:
if((err = JACK_SetVolumeForChannel(driver, 4, avg_vol))) {
mp_msg(MSGT_AO, MSGL_ERR,
"AO: [Jack] Setting center volume failed, error %d\n",err);
return CONTROL_ERROR;
}
case 4:
if((err = JACK_SetVolumeForChannel(driver, 3, r))) {
mp_msg(MSGT_AO, MSGL_ERR,
"AO: [Jack] Setting rear right volume failed, error %d\n",err);
return CONTROL_ERROR;
}
case 3:
if((err = JACK_SetVolumeForChannel(driver, 2, l))) {
mp_msg(MSGT_AO, MSGL_ERR,
"AO: [Jack] Setting rear left volume failed, error %d\n",err);
return CONTROL_ERROR;
}
case 2:
if((err = JACK_SetVolumeForChannel(driver, 1, r))) {
mp_msg(MSGT_AO, MSGL_ERR,
"AO: [Jack] Setting right volume failed, error %d\n",err);
return CONTROL_ERROR;
}
case 1:
if((err = JACK_SetVolumeForChannel(driver, 0, l))) {
mp_msg(MSGT_AO, MSGL_ERR,
"AO: [Jack] Setting left volume failed, error %d\n",err);
return CONTROL_ERROR;
}
}
return CONTROL_OK;
}
@ -98,9 +131,20 @@ static int init(int rate_hz, int channels, int format, int flags)
unsigned long rate;
unsigned int bits_per_sample;
unsigned long jack_port_flags=JackPortIsPhysical;
unsigned int jack_port_name_count=0;
const char *jack_port_name=NULL;
mp_msg(MSGT_AO, MSGL_INFO, "AO: [Jack] Initialising library.\n");
JACK_Init();
if (ao_subdevice) {
jack_port_flags = 0;
jack_port_name_count = 1;
jack_port_name = ao_subdevice;
mp_msg(MSGT_AO, MSGL_INFO, "AO: [Jack] Trying to use jack device:%s.\n", ao_subdevice);
}
switch (format) {
case AFMT_U8:
case AFMT_S8:
@ -117,7 +161,8 @@ static int init(int rate_hz, int channels, int format, int flags)
rate = rate_hz;
err = JACK_Open(&driver, bits_per_sample, &rate, channels);
err = JACK_OpenEx(&driver, bits_per_sample, &rate, channels, channels,
&jack_port_name, jack_port_name_count, jack_port_flags);
/* if sample rates doesn't match try to open device with jack's rate and
* let mplayer convert it (rate now contains that which jackd use) */
@ -125,7 +170,8 @@ static int init(int rate_hz, int channels, int format, int flags)
mp_msg(MSGT_AO, MSGL_INFO,
"AO: [Jack] Sample rate mismatch, trying to resample.\n");
err = JACK_Open(&driver, bits_per_sample, &rate, channels);
err = JACK_OpenEx(&driver, bits_per_sample, &rate, channels, channels,
&jack_port_name, jack_port_name_count, jack_port_flags);
}
/* any other error */
@ -135,11 +181,23 @@ static int init(int rate_hz, int channels, int format, int flags)
return 0;
}
err = JACK_SetAllVolume(driver, 100);
if(err != ERR_SUCCESS) {
// This is not fatal, but would be peculiar...
mp_msg(MSGT_AO, MSGL_ERR,
"AO: [Jack] JACK_SetAllVolume() failed, error %d\n", err);
}
latency = JACK_GetJackLatency(driver);
ao_data.format = format;
ao_data.channels = channels;
ao_data.samplerate = rate;
ao_data.bps = ( rate * channels * m );
// Rather rough way to find out the rough number of bytes buffered
approx_bytes_in_jackd = JACK_GetJackBufferedBytes(driver) * 2;
mp_msg(MSGT_AO, MSGL_INFO,
"AO: [Jack] OK. I'm ready to go (%d Hz/%d channels/%d bit)\n",
ao_data.samplerate, ao_data.channels, bits_per_sample);
@ -152,8 +210,6 @@ static void uninit(int immed)
{
int errval = 0;
JACK_Reset(driver);
if((errval = JACK_Close(driver)))
mp_msg(MSGT_AO, MSGL_ERR,
"AO: [Jack] error closing device, error %d\n", errval);
@ -181,6 +237,9 @@ static void audio_resume()
static void reset()
{
JACK_Reset(driver);
latency = JACK_GetJackLatency(driver);
// Rather rough way to find out the rough number of bytes buffered
approx_bytes_in_jackd = JACK_GetJackBufferedBytes(driver) * 2;
}
@ -192,6 +251,8 @@ static int get_space()
static float get_delay()
{
return (float )JACK_GetJackLatency(driver);
float ret = 0;
ret = (JACK_GetBytesStored(driver) + approx_bytes_in_jackd + latency) / (float)ao_data.bps;
return ret;
}