Commit 628d90cf authored by Rafaël Carré's avatar Rafaël Carré

Add back renamed patch

parent 5c6a81d2
From 9443715f57ea585d899e942a49861fc246a8b826 Mon Sep 17 00:00:00 2001
From: Ming Hu <tewilove@gmail.com>
Date: Thu, 8 Mar 2012 22:46:57 -0800
Subject: [PATCH 2/3] Android: add native AudioTrack aout module
---
configure.ac | 24 +++
modules/audio_output/Modules.am | 1 +
modules/audio_output/audiotrack.c | 303 +++++++++++++++++++++++++++++++++++++
3 files changed, 328 insertions(+)
create mode 100644 modules/audio_output/audiotrack.c
diff --git a/configure.ac b/configure.ac
index ea54735..9766404 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3556,6 +3556,30 @@ if test "${HAVE_ANDROID}" = "1"; then
fi
dnl
+dnl android AudioTrack module
+dnl
+AC_ARG_ENABLE(audiotrack,
+ [ --enable-audiotrack Android native AudioTrack audio output module (default disabled)])
+if test "${enable_audiotrack}" = "yes"; then
+ if test "${HAVE_ANDROID}" = "1"; then
+ VLC_ADD_PLUGIN([android_audiotrack])
+ VLC_ADD_LDFLAGS([android_audiotrack], [-ldl])
+ fi
+fi
+
+dnl
+dnl android AudioTrack module
+dnl
+AC_ARG_ENABLE(audiotrack,
+ [ --enable-audiotrack Android native AudioTrack audio output module (default disabled)])
+if test "${enable_audiotrack}" = "yes"; then
+ if test "${HAVE_ANDROID}" = "1"; then
+ VLC_ADD_PLUGIN([android_audiotrack])
+ VLC_ADD_LDFLAGS([android_audiotrack], [-ldl])
+ fi
+fi
+
+dnl
dnl libsamplerate plugin
dnl
PKG_ENABLE_MODULES_VLC([SAMPLERATE], [], [samplerate], [Resampler with libsamplerate], [auto])
diff --git a/modules/audio_output/Modules.am b/modules/audio_output/Modules.am
index 357bc1d..c4b5a37 100644
--- a/modules/audio_output/Modules.am
+++ b/modules/audio_output/Modules.am
@@ -5,6 +5,7 @@ SOURCES_auhal = auhal.c packet.c
SOURCES_jack = jack.c packet.c
SOURCES_audioqueue = audioqueue.c packet.c
SOURCES_opensles_android = opensles_android.c
+SOURCES_android_audiotrack = audiotrack.c
libadummy_plugin_la_SOURCES = adummy.c
libadummy_plugin_la_CFLAGS = $(AM_CFLAGS)
diff --git a/modules/audio_output/audiotrack.c b/modules/audio_output/audiotrack.c
new file mode 100644
index 0000000..297c48e
--- /dev/null
+++ b/modules/audio_output/audiotrack.c
@@ -0,0 +1,303 @@
+/*****************************************************************************
+ * audiotrack.c: Android native AudioTrack audio output module
+ *****************************************************************************
+ *
+ * Authors: Ming Hu <tewilove@gmail.com>
+ *
+ * This program 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 2.1 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_aout.h>
+
+#include <dlfcn.h>
+#include <assert.h>
+
+#define SIZE_OF_AUDIOTRACK 256
+
+/* From AudioSystem.h */
+#define MUSIC 3
+
+enum pcm_sub_format {
+ PCM_SUB_16_BIT = 0x1, // must be 1 for backward compatibility
+ PCM_SUB_8_BIT = 0x2 // must be 2 for backward compatibility
+};
+
+enum audio_format {
+ PCM = 0x00000000, // must be 0 for backward compatibility
+ PCM_16_BIT = (PCM|PCM_SUB_16_BIT),
+ PCM_8_BIT = (PCM|PCM_SUB_8_BIT)
+};
+
+enum audio_channels {
+ CHANNEL_OUT_FRONT_LEFT = 0x4,
+ CHANNEL_OUT_FRONT_RIGHT = 0x8,
+ CHANNEL_OUT_FRONT_CENTER = 0x10,
+ CHANNEL_OUT_LOW_FREQUENCY = 0x20,
+ CHANNEL_OUT_BACK_LEFT = 0x40,
+ CHANNEL_OUT_BACK_RIGHT = 0x80,
+ CHANNEL_OUT_FRONT_LEFT_OF_CENTER = 0x100,
+ CHANNEL_OUT_FRONT_RIGHT_OF_CENTER = 0x200,
+ CHANNEL_OUT_BACK_CENTER = 0x400,
+ CHANNEL_OUT_MONO = CHANNEL_OUT_FRONT_LEFT,
+ CHANNEL_OUT_STEREO = (CHANNEL_OUT_FRONT_LEFT | CHANNEL_OUT_FRONT_RIGHT)
+};
+
+// _ZN7android11AudioSystem19getOutputFrameCountEPii
+typedef int (*AudioSystem_getOutputFrameCount)(int *, int);
+// _ZN7android11AudioSystem16getOutputLatencyEPji
+typedef int (*AudioSystem_getOutputLatency)(unsigned int *, int);
+// _ZN7android11AudioSystem21getOutputSamplingRateEPii
+typedef int (*AudioSystem_getOutputSamplingRate)(int *, int);
+
+// _ZN7android10AudioTrack16getMinFrameCountEPiij
+typedef int (*AudioTrack_getMinFrameCount)(int *, int, unsigned int);
+
+// _ZN7android10AudioTrackC1EijiiijPFviPvS1_ES1_ii
+typedef void (*AudioTrack_ctor)(void *, int, unsigned int, int, int, int, unsigned int, void (*)(int, void *, void *), void *, int, int);
+// _ZN7android10AudioTrackC1EijiiijPFviPvS1_ES1_i
+typedef void (*AudioTrack_ctor_legacy)(void *, int, unsigned int, int, int, int, unsigned int, void (*)(int, void *, void *), void *, int);
+// _ZN7android10AudioTrackD1Ev
+typedef void (*AudioTrack_dtor)(void *);
+// _ZNK7android10AudioTrack9initCheckEv
+typedef int (*AudioTrack_initCheck)(void *);
+// _ZN7android10AudioTrack5startEv
+typedef int (*AudioTrack_start)(void *);
+// _ZN7android10AudioTrack4stopEv
+typedef int (*AudioTrack_stop)(void *);
+// _ZN7android10AudioTrack5writeEPKvj
+typedef int (*AudioTrack_write)(void *, void const*, unsigned int);
+// _ZN7android10AudioTrack5flushEv
+typedef int (*AudioTrack_flush)(void *);
+
+struct aout_sys_t {
+ void *libmedia;
+ void *AudioTrack;
+
+ AudioSystem_getOutputFrameCount as_getOutputFrameCount;
+ AudioSystem_getOutputLatency as_getOutputLatency;
+ AudioSystem_getOutputSamplingRate as_getOutputSamplingRate;
+
+ AudioTrack_getMinFrameCount at_getMinFrameCount;
+ AudioTrack_ctor at_ctor;
+ AudioTrack_ctor_legacy at_ctor_legacy;
+ AudioTrack_dtor at_dtor;
+ AudioTrack_initCheck at_initCheck;
+ AudioTrack_start at_start;
+ AudioTrack_stop at_stop;
+ AudioTrack_write at_write;
+ AudioTrack_flush at_flush;
+};
+
+static void *InitLibrary(struct aout_sys_t *p_sys);
+
+static int Open(vlc_object_t *);
+static void Close(vlc_object_t *);
+static void Play(audio_output_t *, block_t *);
+
+vlc_module_begin ()
+ set_shortname("AudioTrack")
+ set_description(N_("Android AudioTrack audio output"))
+ set_capability("audio output", 25)
+ set_category(CAT_AUDIO)
+ set_subcategory(SUBCAT_AUDIO_AOUT)
+ add_shortcut("android")
+ set_callbacks(Open, Close)
+vlc_module_end ()
+
+static void *InitLibrary(struct aout_sys_t *p_sys) {
+ /* DL Open libmedia */
+ void *p_library;
+ p_library = dlopen("libmedia.so", RTLD_NOW);
+ if (!p_library)
+ return NULL;
+
+ /* Register symbols */
+ p_sys->as_getOutputFrameCount = (AudioSystem_getOutputFrameCount)(dlsym(p_library, "_ZN7android11AudioSystem19getOutputFrameCountEPii"));
+ p_sys->as_getOutputLatency = (AudioSystem_getOutputLatency)(dlsym(p_library, "_ZN7android11AudioSystem16getOutputLatencyEPji"));
+ p_sys->as_getOutputSamplingRate = (AudioSystem_getOutputSamplingRate)(dlsym(p_library, "_ZN7android11AudioSystem21getOutputSamplingRateEPii"));
+ p_sys->at_getMinFrameCount = (AudioTrack_getMinFrameCount)(dlsym(p_library, "_ZN7android10AudioTrack16getMinFrameCountEPiij"));
+ p_sys->at_ctor = (AudioTrack_ctor)(dlsym(p_library, "_ZN7android10AudioTrackC1EijiiijPFviPvS1_ES1_ii"));
+ p_sys->at_ctor_legacy = (AudioTrack_ctor_legacy)(dlsym(p_library, "_ZN7android10AudioTrackC1EijiiijPFviPvS1_ES1_i"));
+ p_sys->at_dtor = (AudioTrack_dtor)(dlsym(p_library, "_ZN7android10AudioTrackD1Ev"));
+ p_sys->at_initCheck = (AudioTrack_initCheck)(dlsym(p_library, "_ZNK7android10AudioTrack9initCheckEv"));
+ p_sys->at_start = (AudioTrack_start)(dlsym(p_library, "_ZN7android10AudioTrack5startEv"));
+ p_sys->at_stop = (AudioTrack_stop)(dlsym(p_library, "_ZN7android10AudioTrack4stopEv"));
+ p_sys->at_write = (AudioTrack_write)(dlsym(p_library, "_ZN7android10AudioTrack5writeEPKvj"));
+ p_sys->at_flush = (AudioTrack_flush)(dlsym(p_library, "_ZN7android10AudioTrack5flushEv"));
+
+ /* We need the first 3 or the last 1 */
+ if (!((p_sys->as_getOutputFrameCount && p_sys->as_getOutputLatency && p_sys->as_getOutputSamplingRate)
+ || p_sys->at_getMinFrameCount)) {
+ dlclose(p_library);
+ return NULL;
+ }
+
+ // We need all the other Symbols
+ if (!((p_sys->at_ctor || p_sys->at_ctor_legacy) && p_sys->at_dtor && p_sys->at_initCheck &&
+ p_sys->at_start && p_sys->at_stop && p_sys->at_write && p_sys->at_flush)) {
+ dlclose(p_library);
+ return NULL;
+ }
+ return p_library;
+}
+
+static int Open(vlc_object_t *p_this) {
+ struct aout_sys_t *p_sys;
+ audio_output_t *p_aout = (audio_output_t*)(p_this);
+
+ int status, size;
+ int afSampleRate, afFrameCount, afLatency, minBufCount, minFrameCount;
+ int stream_type, channel, rate, format;
+
+ p_sys = (struct aout_sys_t*) malloc(sizeof(aout_sys_t));
+ if (!p_sys)
+ return VLC_ENOMEM;
+
+ p_sys->libmedia = InitLibrary(p_sys);
+ if (!p_sys->libmedia) {
+ msg_Err(p_aout, "Could not initialize libmedia.so!");
+ return VLC_EGENERIC;
+ }
+
+ /* 4000 <= frequency <= 48000 */
+ if (p_aout->format.i_rate < 4000)
+ p_aout->format.i_rate = 4000;
+ if (p_aout->format.i_rate > 48000)
+ p_aout->format.i_rate = 48000;
+ rate = p_aout->format.i_rate;
+
+ stream_type = MUSIC;
+
+ /* We can only accept U8 and S16L */
+ if (p_aout->format.i_format != VLC_CODEC_U8 && p_aout->format.i_format != VLC_CODEC_S16L)
+ p_aout->format.i_format = VLC_CODEC_S16L;
+ format = (p_aout->format.i_format == VLC_CODEC_S16L) ? PCM_16_BIT : PCM_8_BIT;
+
+ /* TODO: android supports more channels */
+ switch(aout_FormatNbChannels(&p_aout->format))
+ {
+ case 1:
+ channel = CHANNEL_OUT_MONO;
+ break;
+ case 2:
+ channel = CHANNEL_OUT_STEREO;
+ break;
+ default:
+ channel = CHANNEL_OUT_STEREO;
+ p_aout->format.i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
+ break;
+ }
+
+ /* Get the minimum buffer value */
+ if (!p_sys->at_getMinFrameCount) {
+ status = p_sys->as_getOutputSamplingRate(&afSampleRate, stream_type);
+ status ^= p_sys->as_getOutputFrameCount(&afFrameCount, stream_type);
+ status ^= p_sys->as_getOutputLatency((uint32_t*)(&afLatency), stream_type);
+ if (status != 0) {
+ msg_Err(p_aout, "Could not query the AudioStream parameters");
+ free(p_sys);
+ dlclose(p_sys->libmedia);
+ return VLC_EGENERIC;
+ }
+ minBufCount = afLatency / ((1000 * afFrameCount) / afSampleRate);
+ if (minBufCount < 2)
+ minBufCount = 2;
+ minFrameCount = (afFrameCount * rate * minBufCount) / afSampleRate;
+ p_aout->format.i_bytes_per_frame = minFrameCount;
+ }
+ else {
+ status = p_sys->at_getMinFrameCount((int*)&p_aout->format.i_bytes_per_frame, stream_type, rate);
+ if (status != 0) {
+ msg_Err(p_aout, "Could not query the AudioTrack parameters");
+ dlclose(p_sys->libmedia);
+ free(p_sys);
+ return VLC_EGENERIC;
+ }
+ }
+
+ p_aout->format.i_bytes_per_frame <<= 1;
+ size = p_aout->format.i_bytes_per_frame;
+
+ /* Sizeof(AudioTrack) == 0x58 (not sure) on 2.2.1, this should be enough */
+ p_sys->AudioTrack = malloc(SIZE_OF_AUDIOTRACK);
+ if (!p_sys->AudioTrack) {
+ dlclose(p_sys->libmedia);
+ free(p_sys);
+ return VLC_ENOMEM;
+ }
+
+ *((uint32_t *) p_sys->AudioTrack + SIZE_OF_AUDIOTRACK - 4) = 0xbaadbaad;
+ // Higher than android 2.2
+ if (p_sys->at_ctor)
+ p_sys->at_ctor(p_sys->AudioTrack, stream_type, rate, format, channel, size, 0, NULL, NULL, 0, 0);
+ // Higher than android 1.6
+ else if (p_sys->at_ctor_legacy)
+ p_sys->at_ctor_legacy(p_sys->AudioTrack, stream_type, rate, format, channel, size, 0, NULL, NULL, 0);
+
+ assert( (*((uint32_t *) p_sys->AudioTrack + SIZE_OF_AUDIOTRACK - 4) == 0xbaadbaad) );
+
+ /* And Init */
+ status = p_sys->at_initCheck(p_sys->AudioTrack);
+
+ /* android 1.6 uses channel count instead of stream_type */
+ if (status != 0) {
+ channel = (channel == CHANNEL_OUT_STEREO) ? 2 : 1;
+ p_sys->at_ctor_legacy(p_sys->AudioTrack, stream_type, rate, format, channel, size, 0, NULL, NULL, 0);
+ status = p_sys->at_initCheck(p_sys->AudioTrack);
+ }
+ if (status != 0) {
+ msg_Err(p_aout, "Cannot create AudioTrack!");
+ free(p_sys->AudioTrack);
+ free(p_sys);
+ return VLC_EGENERIC;
+ }
+
+ p_aout->sys = p_sys;
+ p_aout->pf_play = Play;
+
+ p_sys->at_start(p_sys->AudioTrack);
+
+ return VLC_SUCCESS;
+}
+
+static void Close(vlc_object_t *p_this) {
+ audio_output_t *p_aout = (audio_output_t*)p_this;
+ aout_sys_t *p_sys = p_aout->sys;
+
+ p_sys->at_stop(p_sys->AudioTrack);
+ p_sys->at_flush(p_sys->AudioTrack);
+ p_sys->at_dtor(p_sys->AudioTrack);
+ free(p_sys->AudioTrack);
+ dlclose(p_sys->libmedia);
+ free(p_sys);
+}
+
+static void Play(audio_output_t *p_aout, block_t *p_buffer) {
+ aout_sys_t *p_sys = p_aout->sys;
+
+ size_t length = 0;
+ while (length < p_buffer->i_buffer) {
+ length += p_sys->at_write(p_sys->AudioTrack, (char*)(p_buffer->p_buffer) + length, p_buffer->i_buffer - length);
+ }
+
+ aout_BufferFree(p_buffer);
+}
+
--
1.7.9.5
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