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fix rtsp audio for channel 1

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This commit is contained in:
Alfonso Gamboa 2022-05-16 00:24:51 -07:00
parent b9c96a63a2
commit 43f6ed9fda
5 changed files with 78 additions and 11 deletions
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1
README.md
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@ -215,6 +215,7 @@ Huge credit to @mnakada for his libcallback library: [https://github.com/mnakada
## Latest Updates
* 05-15-22: fixed rtsp audio for low-res rtsp stream, patched libcallback sources for audio channel 1.
* 05-15-22: patched libcallback to support both video streams from the camera. Added support for them in run_mmc.sh.
* 05-14-22: Added ability to specify RTSP bitrate parameters. Note that changing bitrate in the mobile app will briefly reset the bitrate for the RTSP stream.
* 05-14-22: Update v4l2rtspserver, tinyalsa, alsa-lib. Patch busybox for older official FW's failing to run scripts, fix choppy/static audio in libcallback

BIN
SD_ROOT/wz_mini/lib/libcallback.so
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14
SD_ROOT/wz_mini/run_mmc.sh
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@ -377,15 +377,15 @@ if [[ "$RTSP_HI_RES_ENABLED" == "true" ]]; then
fi
if [[ "$RTSP_HI_RES_ENC_PARAMETER" != "" ]]; then
watch -n5 -t "/system/bin/impdbg --enc_rc_s 0:44:4:$RTSP_HI_RES_ENC_PARAMETER" > /dev/null 2>&1 &
watch -n10 -t "/system/bin/impdbg --enc_rc_s 0:44:4:$RTSP_HI_RES_ENC_PARAMETER" > /dev/null 2>&1 &
fi
if [[ "$RTSP_HI_RES_MAX_BITRATE" != "" ]]; then
watch -n5 -t "/system/bin/impdbg --enc_rc_s 0:48:4:$RTSP_HI_RES_MAX_BITRATE" > /dev/null 2>&1 &
watch -n10 -t "/system/bin/impdbg --enc_rc_s 0:48:4:$RTSP_HI_RES_MAX_BITRATE" > /dev/null 2>&1 &
fi
if [[ "$RTSP_HI_RES_TARGET_BITRATE" != "" ]]; then
watch -n5 -t "/system/bin/impdbg --enc_rc_s 0:52:4:$RTSP_HI_RES_TARGET_BITRATE" > /dev/null 2>&1 &
watch -n10 -t "/system/bin/impdbg --enc_rc_s 0:52:4:$RTSP_HI_RES_TARGET_BITRATE" > /dev/null 2>&1 &
fi
else
@ -410,22 +410,22 @@ if [[ "$RTSP_LOW_RES_ENABLED" == "true" ]]; then
fi
if [[ "$RTSP_LOW_RES_ENABLE_AUDIO" == "true" ]]; then
LD_LIBRARY_PATH=/media/mmc/wz_mini/lib /media/mmc/wz_mini/bin/v4l2rtspserver -C 1 -a S16_LE /dev/video2,hw:Loopback,0 -U $RTSP_LOGIN:$RTSP_PASSWORD -P $RTSP_LOW_RES_PORT &
LD_LIBRARY_PATH=/media/mmc/wz_mini/lib /media/mmc/wz_mini/bin/v4l2rtspserver -C 1 -a S16_LE /dev/video2,hw:Loopback,1 -U $RTSP_LOGIN:$RTSP_PASSWORD -P $RTSP_LOW_RES_PORT &
else
echo "rtsp audio disabled"
LD_LIBRARY_PATH=/media/mmc/wz_mini/lib /media/mmc/wz_mini/bin/v4l2rtspserver -s /dev/video2 -U $RTSP_LOGIN:$RTSP_PASSWORD -P $RTSP_LOW_RES_PORT &
fi
if [[ "$RTSP_LOW_RES_ENC_PARAMETER" != "" ]]; then
watch -n5 -t "/system/bin/impdbg --enc_rc_s 1:44:4:$RTSP_LOW_RES_ENC_PARAMETER" > /dev/null 2>&1 &
watch -n10 -t "/system/bin/impdbg --enc_rc_s 1:44:4:$RTSP_LOW_RES_ENC_PARAMETER" > /dev/null 2>&1 &
fi
if [[ "$RTSP_LOW_RES_MAX_BITRATE" != "" ]]; then
watch -n5 -t "/system/bin/impdbg --enc_rc_s 1:48:4:$RTSP_LOW_RES_MAX_BITRATE" > /dev/null 2>&1 &
watch -n10 -t "/system/bin/impdbg --enc_rc_s 1:48:4:$RTSP_LOW_RES_MAX_BITRATE" > /dev/null 2>&1 &
fi
if [[ "$RTSP_LOW_RES_TARGET_BITRATE" != "" ]]; then
watch -n5 -t "/system/bin/impdbg --enc_rc_s 1:52:4:$RTSP_LOW_RES_TARGET_BITRATE" > /dev/null 2>&1 &
watch -n10 -t "/system/bin/impdbg --enc_rc_s 1:52:4:$RTSP_LOW_RES_TARGET_BITRATE" > /dev/null 2>&1 &
fi
else

74
libcallback_wz_mod/audio_callback.c
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@ -19,6 +19,9 @@ static uint32_t (*real_local_sdk_audio_set_pcm_frame_callback)(int ch, void *cal
static void *audio_pcm_cb = NULL;
static int AudioCaptureEnable = 0;
static void *audio_pcm_cb1 = NULL;
static int AudioCaptureEnable1 = 0;
char *AudioCapture(int fd, char *tokenPtr) {
char *p = strtok_r(NULL, " \t\r\n", &tokenPtr);
@ -28,14 +31,25 @@ char *AudioCapture(int fd, char *tokenPtr) {
fprintf(stderr, "[command] audio capute on\n", p);
return "ok";
}
if(!strcmp(p, "on1")) {
AudioCaptureEnable1 = 1;
fprintf(stderr, "[command] audio capute on\n", p);
return "ok";
}
if(!strcmp(p, "off")) {
AudioCaptureEnable = 0;
fprintf(stderr, "[command] audio capute off\n", p);
return "ok";
}
if(!strcmp(p, "off1")) {
AudioCaptureEnable1 = 0;
fprintf(stderr, "[command] audio capute off\n", p);
return "ok";
}
return "error";
}
//channel 0
static uint32_t audio_pcm_capture(struct frames_st *frames) {
static struct pcm *pcm = NULL;
@ -60,10 +74,10 @@ static uint32_t audio_pcm_capture(struct frames_st *frames) {
};
pcm = pcm_open(card, device, flags, &config);
if(pcm == NULL) {
fprintf(stderr, "failed to allocate memory for PCM\n");
fprintf(stderr, "failed to allocate memory for PCM CH0\n");
} else if(!pcm_is_ready(pcm)) {
pcm_close(pcm);
fprintf(stderr, "failed to open PCM\n");
fprintf(stderr, "failed to open PCM CH0\n");
}
}
@ -77,16 +91,68 @@ static uint32_t audio_pcm_capture(struct frames_st *frames) {
return ((framecb)audio_pcm_cb)(frames);
}
//channel1
static uint32_t audio_pcm_capture1(struct frames_st *frames) {
static struct pcm *pcm = NULL;
static int firstEntry = 0;
uint32_t *buf = frames->buf;
if(!firstEntry) {
firstEntry++;
unsigned int card = 0;
unsigned int device = 0;
int flags = PCM_OUT | PCM_MMAP;
const struct pcm_config config = {
.channels = 1,
.rate = 8000,
.format = PCM_FORMAT_S16_LE,
.period_size = 128,
.period_count = 8,
.start_threshold = 320,
.silence_threshold = 0,
.silence_size = 0,
.stop_threshold = 320 * 4
};
pcm = pcm_open(card, device, flags, &config);
if(pcm == NULL) {
fprintf(stderr, "failed to allocate memory for PCM CH1\n");
} else if(!pcm_is_ready(pcm)) {
pcm_close(pcm);
fprintf(stderr, "failed to open PCM CH1\n");
}
}
if(pcm && AudioCaptureEnable1) {
int avail = pcm_mmap_avail(pcm);
int delay = pcm_get_delay(pcm);
int ready = pcm_is_ready(pcm);
int err = pcm_writei(pcm, buf, pcm_bytes_to_frames(pcm, frames->length));
if(err < 0) fprintf(stderr, "pcm_writei err=%d\n", err);
}
return ((framecb)audio_pcm_cb1)(frames);
}
uint32_t local_sdk_audio_set_pcm_frame_callback(int ch, void *callback) {
fprintf(stderr, "local_sdk_audio_set_pcm_frame_callback streamChId=%d, callback=0x%x\n", ch, callback);
static int ch_count = 0;
if( (ch == 0) && ch_count == 0) {
audio_pcm_cb = callback;
fprintf(stderr,"enc func injection save audio_pcm_cb=0x%x\n", audio_pcm_cb);
fprintf(stderr,"enc func injection CH0 save audio_pcm_cb=0x%x\n", audio_pcm_cb);
callback = audio_pcm_capture;
}
ch_count=ch_count+1
if( (ch == 1) && ch_count == 1) {
audio_pcm_cb1 = callback;
fprintf(stderr,"enc func injection CH1 save audio_pcm_cb=0x%x\n", audio_pcm_cb1);
callback = audio_pcm_capture1;
}
ch_count=ch_count+1;
return real_local_sdk_audio_set_pcm_frame_callback(ch, callback);
}

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libcallback_wz_mod/libcallback.so
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