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authorVito Caputo <vcaputo@pengaru.com>2020-09-08 23:45:17 -0700
committerVito Caputo <vcaputo@pengaru.com>2020-09-08 23:45:17 -0700
commitcd2f6c3aca998c7e68aa6e4ccd0ad260426d28e8 (patch)
tree1947e12514b755ae6ab9c36bff59232c343010d4 /src/rmd_encode_audio_buffer.c
parente9aa96e3fa9be9117f5407619fc65292da34c441 (diff)
encode_sound_buffer: rename to encode_audio_buffer
Cosmetic rename to make naming consistent, normalizing on audio. This is a minimal rename and includes update, subsequent commit will change naming as appropriate in rmd_encode_audio_buffer.[ch]
Diffstat (limited to 'src/rmd_encode_audio_buffer.c')
-rw-r--r--src/rmd_encode_audio_buffer.c178
1 files changed, 178 insertions, 0 deletions
diff --git a/src/rmd_encode_audio_buffer.c b/src/rmd_encode_audio_buffer.c
new file mode 100644
index 0000000..1aa9943
--- /dev/null
+++ b/src/rmd_encode_audio_buffer.c
@@ -0,0 +1,178 @@
+/******************************************************************************
+* recordMyDesktop *
+*******************************************************************************
+* *
+* Copyright (C) 2006,2007,2008 John Varouhakis *
+* *
+* *
+* This program is free software; you can redistribute it and/or modify *
+* it under the terms of the GNU General Public License as published by *
+* the Free Software Foundation; either version 2 of the License, or *
+* (at your option) any later version. *
+* *
+* This program 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 General Public License for more details. *
+* *
+* You should have received a copy of the GNU General Public License *
+* along with this program; if not, write to the Free Software *
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
+* *
+* *
+* *
+* For further information contact me at johnvarouhakis@gmail.com *
+******************************************************************************/
+
+#include "config.h"
+#include "rmd_encode_audio_buffer.h"
+
+#include "rmd_jack.h"
+#include "rmd_threads.h"
+#include "rmd_types.h"
+
+#include <pthread.h>
+
+#include <stdlib.h>
+#include <errno.h>
+
+
+void *rmdEncodeSoundBuffer(ProgData *pdata) {
+ int sampread = pdata->periodsize;
+#ifdef HAVE_LIBJACK
+ void *jackbuf = NULL;
+
+ if (pdata->args.use_jack)
+ jackbuf = malloc(pdata->sound_framesize * pdata->jdata->buffersize);
+#endif
+
+ rmdThreadsSetName("rmdEncodeSound");
+
+ pdata->v_encoding_clean = 0;
+ while (pdata->running) {
+ float **vorbis_buffer;
+ SndBuffer *buff = NULL;
+
+ pthread_mutex_lock(&pdata->pause_mutex);
+ while (pdata->paused)
+ pthread_cond_wait(&pdata->pause_cond, &pdata->pause_mutex);
+ pthread_mutex_unlock(&pdata->pause_mutex);
+
+ if (!pdata->args.use_jack) {
+ pthread_mutex_lock(&pdata->sound_buffer_mutex);
+ while (!pdata->sound_buffer && pdata->running)
+ pthread_cond_wait(&pdata->sound_data_read, &pdata->sound_buffer_mutex);
+
+ buff = pdata->sound_buffer;
+ if (buff)
+ pdata->sound_buffer = buff->next;
+ pthread_mutex_unlock(&pdata->sound_buffer_mutex);
+
+ if (!pdata->running)
+ break;
+
+ vorbis_buffer = vorbis_analysis_buffer(&pdata->enc_data->m_vo_dsp, sampread);
+
+ for (int i = 0, count = 0; i < sampread; i++) {
+ for (int j = 0; j < pdata->args.channels; j++) {
+ vorbis_buffer[j][i] = ((buff->data[count + 1] << 8) |
+ (0x00ff & (int)buff->data[count])) /
+ 32768.f;
+ count += 2;
+ }
+ }
+ free(buff->data);
+ free(buff);
+ } else {
+#ifdef HAVE_LIBJACK
+
+ pthread_mutex_lock(&pdata->sound_buffer_mutex);
+ while ( pdata->running &&
+ jack_ringbuffer_read_space(pdata->jdata->sound_buffer) <
+ pdata->sound_framesize * pdata->jdata->buffersize)
+ pthread_cond_wait(&pdata->sound_data_read, &pdata->sound_buffer_mutex);
+
+ if (pdata->running)
+ jack_ringbuffer_read( pdata->jdata->sound_buffer,
+ jackbuf,
+ (pdata->sound_framesize *
+ pdata->jdata->buffersize)
+ );
+
+ pthread_mutex_unlock(&pdata->sound_buffer_mutex);
+
+ if (!pdata->running)
+ break;
+
+ vorbis_buffer = vorbis_analysis_buffer(&pdata->enc_data->m_vo_dsp, sampread);
+
+ for (int j = 0, count = 0; j < pdata->args.channels; j++) {
+ for (int i = 0; i < sampread; i++) {
+ vorbis_buffer[j][i] = ((float*)jackbuf)[count];
+ count++;
+ }
+ }
+#endif
+ }
+ vorbis_analysis_wrote(&pdata->enc_data->m_vo_dsp, sampread);
+
+ pthread_mutex_lock(&pdata->libogg_mutex);
+ while (vorbis_analysis_blockout(&pdata->enc_data->m_vo_dsp, &pdata->enc_data->m_vo_block) == 1) {
+
+ vorbis_analysis(&pdata->enc_data->m_vo_block, NULL);
+ vorbis_bitrate_addblock(&pdata->enc_data->m_vo_block);
+
+ while (vorbis_bitrate_flushpacket(&pdata->enc_data->m_vo_dsp, &pdata->enc_data->m_ogg_pckt2)) {
+ ogg_stream_packetin(&pdata->enc_data->m_ogg_vs, &pdata->enc_data->m_ogg_pckt2);
+ }
+ }
+ pthread_mutex_unlock(&pdata->libogg_mutex);
+ }
+
+ pthread_mutex_lock(&pdata->vorbis_lib_mutex);
+ pdata->v_encoding_clean = 1;
+ pthread_cond_signal(&pdata->vorbis_lib_clean);
+ pthread_mutex_unlock(&pdata->vorbis_lib_mutex);
+ pthread_exit(&errno);
+}
+
+void rmdSyncEncodeSoundBuffer(ProgData *pdata, signed char *buff) {
+ int sampread = (buff != NULL) ? pdata->periodsize : 0;
+ float **vorbis_buffer = vorbis_analysis_buffer(&pdata->enc_data->m_vo_dsp, sampread);
+
+ if (!pdata->args.use_jack) {
+ for (int i = 0, count = 0; i < sampread; i++) {
+ for (int j = 0; j < pdata->args.channels; j++) {
+ vorbis_buffer[j][i] = ((buff[count + 1] << 8) |
+ (0x00ff & (int)buff[count]))
+ / 32768.f;
+ count += 2;
+ }
+ }
+ } else {
+ for (int j = 0, count = 0; j < pdata->args.channels; j++) {
+ for (int i = 0; i < sampread; i++) {
+ vorbis_buffer[j][i] = ((float *)buff)[count];
+ count++;
+ }
+ }
+ }
+
+ vorbis_analysis_wrote(&pdata->enc_data->m_vo_dsp, sampread);
+
+ pthread_mutex_lock(&pdata->libogg_mutex);
+ while (vorbis_analysis_blockout(&pdata->enc_data->m_vo_dsp, &pdata->enc_data->m_vo_block) == 1) {
+
+ vorbis_analysis(&pdata->enc_data->m_vo_block, NULL);
+ vorbis_bitrate_addblock(&pdata->enc_data->m_vo_block);
+
+ while (vorbis_bitrate_flushpacket(&pdata->enc_data->m_vo_dsp, &pdata->enc_data->m_ogg_pckt2))
+ ogg_stream_packetin(&pdata->enc_data->m_ogg_vs, &pdata->enc_data->m_ogg_pckt2);
+ }
+ pthread_mutex_unlock(&pdata->libogg_mutex);
+
+ if (!pdata->running)
+ pdata->enc_data->m_ogg_vs.e_o_s = 1;
+
+ pdata->avd -= pdata->periodtime;
+}
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