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authorMichele Calgaro <michele.calgaro@yahoo.it>2020-09-11 14:38:47 +0900
committerMichele Calgaro <michele.calgaro@yahoo.it>2020-09-11 14:38:47 +0900
commit884c8093d63402a1ad0b502244b791e3c6782be3 (patch)
treea600d4ab0d431a2bdfe4c15b70df43c14fbd8dd0 /debian/transcode/transcode-1.1.7/encode/encode_lame.c
parent14e1aa2006796f147f3f4811fb908a6b01e79253 (diff)
downloadextra-dependencies-884c8093d63402a1ad0b502244b791e3c6782be3.tar.gz
extra-dependencies-884c8093d63402a1ad0b502244b791e3c6782be3.zip
Added debian extra dependency packages.
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
Diffstat (limited to 'debian/transcode/transcode-1.1.7/encode/encode_lame.c')
-rw-r--r--debian/transcode/transcode-1.1.7/encode/encode_lame.c456
1 files changed, 456 insertions, 0 deletions
diff --git a/debian/transcode/transcode-1.1.7/encode/encode_lame.c b/debian/transcode/transcode-1.1.7/encode/encode_lame.c
new file mode 100644
index 00000000..7d32529c
--- /dev/null
+++ b/debian/transcode/transcode-1.1.7/encode/encode_lame.c
@@ -0,0 +1,456 @@
+/*
+ * encode_lame.c - encode audio frames using lame
+ * Written by Andrew Church <achurch@achurch.org>
+ *
+ * This file is part of transcode, a video stream processing tool.
+ * transcode is free software, distributable under the terms of the GNU
+ * General Public License (version 2 or later). See the file COPYING
+ * for details.
+ */
+
+#include "transcode.h"
+#include "libtc/libtc.h"
+#include "libtc/optstr.h"
+#include "libtc/tcmodule-plugin.h"
+
+#include <lame/lame.h>
+
+#define MOD_NAME "encode_lame.so"
+#define MOD_VERSION "v1.1 (2006-11-01)"
+#define MOD_CAP "Encodes audio to MP3 using LAME"
+#define MOD_AUTHOR "Andrew Church"
+
+#define MOD_FEATURES \
+ TC_MODULE_FEATURE_ENCODE|TC_MODULE_FEATURE_AUDIO
+
+#define MOD_FLAGS \
+ TC_MODULE_FLAG_RECONFIGURABLE
+
+
+/*************************************************************************/
+
+/* Local data structure: */
+
+typedef struct {
+ lame_global_flags *lgf;
+ int bps; /* bytes per sample */
+ int channels;
+ int flush_flag;
+} PrivateData;
+
+/*************************************************************************/
+
+/**
+ * lame_log_error, lame_log_msg, lame_log_debug: Internal logging
+ * functions for LAME.
+ *
+ * Parameters:
+ * format: Log message format string.
+ * args: Log message format arguments.
+ * Return value:
+ * None.
+ */
+
+static void lame_log_error(const char *format, va_list args)
+{
+ char buf[TC_BUF_MAX];
+ tc_vsnprintf(buf, sizeof(buf), format, args);
+ tc_log_error(MOD_NAME, "%s", buf);
+}
+
+static void lame_log_msg(const char *format, va_list args)
+{
+ if (verbose & TC_INFO) {
+ char buf[TC_BUF_MAX];
+ tc_vsnprintf(buf, sizeof(buf), format, args);
+ tc_log_info(MOD_NAME, "%s", buf);
+ }
+}
+
+static void lame_log_debug(const char *format, va_list args)
+{
+ if (verbose & TC_DEBUG) {
+ char buf[TC_BUF_MAX];
+ tc_vsnprintf(buf, sizeof(buf), format, args);
+ tc_log_msg(MOD_NAME, "%s", buf);
+ }
+}
+
+/*************************************************************************/
+/*************************************************************************/
+
+/* Module interface routines and data. */
+
+/*************************************************************************/
+
+/**
+ * lamemod_init: Initialize this instance of the module. See
+ * tcmodule-data.h for function details. Note the name of this function--
+ * we don't want to conflict with libmp3lame's lame_init().
+ */
+
+static int lamemod_init(TCModuleInstance *self, uint32_t features)
+{
+ PrivateData *pd;
+
+ TC_MODULE_SELF_CHECK(self, "init");
+ TC_MODULE_INIT_CHECK(self, MOD_FEATURES, features);
+
+ self->userdata = pd = tc_malloc(sizeof(PrivateData));
+ if (!pd) {
+ tc_log_error(MOD_NAME, "init: out of memory!");
+ return TC_ERROR;
+ }
+ pd->lgf = NULL;
+
+ /* FIXME: shouldn't this test a specific flag? */
+ if (verbose) {
+ tc_log_info(MOD_NAME, "%s %s", MOD_VERSION, MOD_CAP);
+ if (verbose & TC_INFO)
+ tc_log_info(MOD_NAME, "Using LAME %s", get_lame_version());
+ }
+ return TC_OK;
+}
+
+/*************************************************************************/
+
+/**
+ * lame_configure: Configure this instance of the module. See
+ * tcmodule-data.h for function details.
+ */
+
+static int lame_configure(TCModuleInstance *self,
+ const char *options, vob_t *vob)
+{
+ PrivateData *pd;
+ int samplerate = vob->mp3frequency ? vob->mp3frequency : vob->a_rate;
+ int quality;
+ MPEG_mode mode;
+
+ TC_MODULE_SELF_CHECK(self, "configure");
+ pd = self->userdata;
+
+ pd->flush_flag = vob->encoder_flush;
+ /* Save bytes per sample */
+ pd->bps = (vob->dm_chan * vob->dm_bits) / 8;
+ /* And audio channels */
+ pd->channels = vob->dm_chan;
+
+ /* Create LAME object (freeing any old one that might be left over) */
+ if (pd->lgf)
+ lame_close(pd->lgf);
+ pd->lgf = lame_init();
+ if (!pd->lgf) {
+ tc_log_error(MOD_NAME, "LAME initialization failed");
+ return TC_ERROR;
+ }
+
+ /* Set up logging functions (assume no failure) */
+ lame_set_errorf(pd->lgf, lame_log_error);
+ lame_set_msgf (pd->lgf, lame_log_msg );
+ lame_set_debugf(pd->lgf, lame_log_debug);
+
+ /* Set up audio parameters */
+ if (vob->dm_bits != 16) {
+ tc_log_error(MOD_NAME, "Only 16-bit samples supported");
+ return TC_ERROR;
+ }
+ if (lame_set_in_samplerate(pd->lgf, samplerate) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_in_samplerate(%d) failed",samplerate);
+ return TC_ERROR;
+ }
+ if (lame_set_num_channels(pd->lgf, pd->channels) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_num_channels(%d) failed",
+ pd->channels);
+ return TC_ERROR;
+ }
+ if (lame_set_scale(pd->lgf, vob->volume) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_scale(%f) failed", vob->volume);
+ return TC_ERROR;
+ }
+ if (lame_set_bWriteVbrTag(pd->lgf, (vob->a_vbr!=0)) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_bWriteVbrTag(%d) failed",
+ (vob->a_vbr!=0));
+ return TC_ERROR;
+ }
+ quality = (int)TC_CLAMP(vob->mp3quality, 0.0, 9.0);
+ if (lame_set_quality(pd->lgf, quality) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_quality(%d) failed", quality);
+ return TC_ERROR;
+ }
+ switch (vob->mp3mode) {
+ case 0: mode = JOINT_STEREO; break;
+ case 1: mode = STEREO; break;
+ case 2: mode = MONO; break;
+ default:
+ tc_log_warn(MOD_NAME,"Invalid audio mode, defaulting to joint stereo");
+ mode = JOINT_STEREO;
+ break;
+ }
+ /* FIXME: add coherency check with given audio channels? */
+ if (lame_set_mode(pd->lgf, mode) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_mode(%d) failed", mode);
+ return TC_ERROR;
+ }
+ if (lame_set_brate(pd->lgf, vob->mp3bitrate) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_brate(%d) failed", vob->mp3bitrate);
+ return TC_ERROR;
+ }
+ /* Ugly preset handling */
+ if (vob->lame_preset) {
+ preset_mode preset;
+ int fast = 0;
+ char *s = strchr(vob->lame_preset, ',');
+ if (s) {
+ *s++ = 0;
+ if (strcmp(s, "fast") == 0)
+ fast = 1;
+ }
+ if (strcmp(vob->lame_preset, "standard") == 0) {
+ preset = (fast ? STANDARD_FAST : STANDARD);
+ vob->a_vbr = 1;
+ } else if (strcmp(vob->lame_preset, "medium") == 0) {
+ preset = (fast ? MEDIUM_FAST : MEDIUM);
+ vob->a_vbr = 1;
+ } else if (strcmp(vob->lame_preset, "extreme") == 0) {
+ preset = (fast ? EXTREME_FAST : EXTREME);
+ vob->a_vbr = 1;
+ } else if (strcmp(vob->lame_preset, "insane") == 0) {
+ preset = INSANE;
+ vob->a_vbr = 1;
+ } else {
+ preset = strtol(vob->lame_preset, &s, 10);
+ if (*s || preset < 8 || preset > 320) {
+ tc_log_error(MOD_NAME, "Invalid preset \"%s\"",
+ vob->lame_preset);
+ return TC_ERROR;
+ } else {
+ vob->a_vbr = 1;
+ }
+ }
+ if (lame_set_preset(pd->lgf, preset) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_preset(%d) failed", preset);
+ return TC_ERROR;
+ }
+ } // if (vob->lame_preset)
+ /* Acceleration setting failures aren't fatal */
+ if (lame_set_asm_optimizations(pd->lgf, MMX, (tc_accel&AC_MMX )?1:0) < 0)
+ tc_log_warn(MOD_NAME, "lame_set_asm_optimizations(MMX,%d) failed",
+ (tc_accel&AC_MMX)?1:0);
+ if (lame_set_asm_optimizations(pd->lgf, AMD_3DNOW,
+ (tc_accel&AC_3DNOW)?1:0) < 0)
+ tc_log_warn(MOD_NAME, "lame_set_asm_optimizations(3DNOW,%d) failed",
+ (tc_accel&AC_3DNOW)?1:0);
+ if (lame_set_asm_optimizations(pd->lgf, SSE, (tc_accel&AC_SSE )?1:0) < 0)
+ tc_log_warn(MOD_NAME, "lame_set_asm_optimizations(SSE,%d) failed",
+ (tc_accel&AC_SSE)?1:0);
+ /* FIXME: this function is documented as "for testing only"--should we
+ * really expose it to the user? */
+ if (!vob->bitreservoir && lame_set_disable_reservoir(pd->lgf, 1) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_disable_reservoir(1) failed");
+ return TC_ERROR;
+ }
+ if (lame_set_VBR(pd->lgf, vob->a_vbr ? vbr_default : vbr_off) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_VBR(%d) failed",
+ vob->a_vbr ? vbr_default : vbr_off);
+ return TC_ERROR;
+ }
+ if (vob->a_vbr) {
+ /* FIXME: we should have a separate VBR quality control */
+ if (lame_set_VBR_q(pd->lgf, quality) < 0) {
+ tc_log_error(MOD_NAME, "lame_set_VBR_q(%d) failed", quality);
+ return TC_ERROR;
+ }
+ }
+
+ /* Initialize encoder */
+ if (lame_init_params(pd->lgf) < 0) {
+ tc_log_error(MOD_NAME, "lame_init_params() failed");
+ return TC_ERROR;
+ }
+
+ return TC_OK;
+}
+
+/*************************************************************************/
+
+/**
+ * lame_inspect: Return the value of an option in this instance of the
+ * module. See tcmodule-data.h for function details.
+ */
+
+static int lame_inspect(TCModuleInstance *self,
+ const char *param, const char **value)
+{
+ static char buf[TC_BUF_MAX];
+
+ TC_MODULE_SELF_CHECK(self, "inspect");
+ TC_MODULE_SELF_CHECK(param, "inspect");
+
+ if (optstr_lookup(param, "help")) {
+ tc_snprintf(buf, sizeof(buf),
+ "Overview:\n"
+ " Encodes audio to MP3 using the LAME library.\n"
+ "No options available.\n");
+ *value = buf;
+ }
+ return TC_OK;
+}
+
+/*************************************************************************/
+
+/**
+ * lame_stop: Reset this instance of the module. See tcmodule-data.h for
+ * function details.
+ */
+
+static int lame_stop(TCModuleInstance *self)
+{
+ PrivateData *pd;
+
+ TC_MODULE_SELF_CHECK(self, "stop");
+
+ pd = self->userdata;
+
+ if (pd->lgf) {
+ lame_close(pd->lgf);
+ pd->lgf = NULL;
+ }
+
+ return TC_OK;
+}
+
+/*************************************************************************/
+
+/**
+ * lame_fini: Clean up after this instance of the module. See
+ * tcmodule-data.h for function details.
+ */
+
+static int lame_fini(TCModuleInstance *self)
+{
+ TC_MODULE_SELF_CHECK(self, "fini");
+
+ lame_stop(self);
+ tc_free(self->userdata);
+ self->userdata = NULL;
+ return TC_OK;
+}
+
+/*************************************************************************/
+
+/**
+ * lame_encode: Encode a frame of data. See tcmodule-data.h for
+ * function details.
+ */
+
+#define LAME_FLUSH_BUFFER_SIZE 7200 /* from lame/lame.h */
+
+static int lame_encode(TCModuleInstance *self,
+ aframe_list_t *in, aframe_list_t *out)
+{
+ PrivateData *pd;
+ int res;
+
+ TC_MODULE_SELF_CHECK(self, "encode");
+ if (out == NULL) {
+ tc_log_error(MOD_NAME, "no output buffer supplied");
+ return TC_ERROR;
+ }
+
+ pd = self->userdata;
+
+ if (in == NULL) {
+ /* flush request */
+ if (!pd->flush_flag) {
+ /* No-flush option given, so don't do anything */
+ out->audio_len = 0;
+ return TC_OK;
+ }
+ if (out->audio_size < LAME_FLUSH_BUFFER_SIZE) {
+ /* paranoia is a virtue */
+ tc_log_error(MOD_NAME, "output buffer too small for"
+ " flushing (%i|%i)",
+ out->audio_size,
+ LAME_FLUSH_BUFFER_SIZE);
+ return TC_ERROR;
+ }
+
+ /*
+ * Looks like _nogap should behave better when
+ * splitting/rotating output files.
+ * Moreover, our streams should'nt contain any ID3 tag,
+ * -- FR
+ */
+ res = lame_encode_flush_nogap(pd->lgf, out->audio_buf, 0);
+ if (verbose & TC_DEBUG) {
+ tc_log_info(MOD_NAME, "flushing %d audio bytes", res);
+ }
+ } else {
+ /* regular encoding */
+ if (pd->channels == 1) { /* mono */
+ res = lame_encode_buffer(pd->lgf,
+ (short *)(in->audio_buf),
+ (short *)(in->audio_buf),
+ in->audio_size / pd->bps,
+ out->audio_buf,
+ out->audio_size);
+ } else { /* all stereo flavours */
+ res = lame_encode_buffer_interleaved(pd->lgf,
+ (short *)in->audio_buf,
+ in->audio_size / pd->bps,
+ out->audio_buf,
+ out->audio_size);
+ }
+
+ if (res < 0) {
+ if (verbose & TC_DEBUG) {
+ tc_log_error(MOD_NAME, "lame_encode_buffer_interleaved() failed"
+ " (%d: %s)", res,
+ res==-1 ? "output buffer overflow" :
+ res==-2 ? "out of memory" :
+ res==-3 ? "not initialized" :
+ res==-4 ? "psychoacoustic problems" : "unknown");
+ } else {
+ tc_log_error(MOD_NAME, "Audio encoding failed!");
+ }
+ return TC_ERROR;
+ }
+ }
+ out->audio_len = res;
+ return TC_OK;
+}
+
+/*************************************************************************/
+
+static const TCCodecID lame_codecs_in[] = { TC_CODEC_PCM, TC_CODEC_ERROR };
+static const TCCodecID lame_codecs_out[] = { TC_CODEC_MP3, TC_CODEC_ERROR };
+TC_MODULE_CODEC_FORMATS(lame);
+
+TC_MODULE_INFO(lame);
+
+static const TCModuleClass lame_class = {
+ TC_MODULE_CLASS_HEAD(lame),
+
+ .init = lamemod_init,
+ .fini = lame_fini,
+ .configure = lame_configure,
+ .stop = lame_stop,
+ .inspect = lame_inspect,
+
+ .encode_audio = lame_encode,
+};
+
+TC_MODULE_ENTRY_POINT(lame);
+
+/*************************************************************************/
+
+/*
+ * Local variables:
+ * c-file-style: "stroustrup"
+ * c-file-offsets: ((case-label . *) (statement-case-intro . *))
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vim: expandtab shiftwidth=4:
+ */