mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-26 10:10:32 +00:00
Code Issues 1 Projects Releases Wiki Activity
gstreamer/ext/flac/gstflacenc.c
Tim-Philipp Müller 2042e06dd4 ext/flac/gstflacenc.*: Fix seeking, so that flacenc can rewrite the header with the correct duration and amount of sa... 
Original commit message from CVS:
* ext/flac/gstflacenc.c: (gst_flacenc_base_init),
(gst_flacenc_init), (gst_flacenc_sink_setcaps),
(gst_flacenc_seek_callback), (gst_flacenc_write_callback),
(gst_flacenc_sink_event), (gst_flacenc_chain),
(gst_flacenc_set_property), (gst_flacenc_get_property),
(gst_flacenc_change_state):
* ext/flac/gstflacenc.h:
Fix seeking, so that flacenc can rewrite the header with the
correct duration and amount of samples and all that at EOS;
also set timestamps and granulepos on outgoing buffers; add
debug category; fix state change function.
2005-10-24 15:50:06 +00:00

888 lines
30 KiB
C
Raw Blame History

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include <gstflacenc.h>
#include <gst/audio/audio.h>
#include <gst/tag/tag.h>
#include <gst/gsttagsetter.h>
#include "flac_compat.h"
GstElementDetails flacenc_details = {
"FLAC encoder",
"Codec/Encoder/Audio",
"Encodes audio with the FLAC lossless audio encoder",
"Wim Taymans <wim.taymans@chello.be>",
};
#define FLAC_SINK_CAPS \
"audio/x-raw-int, " \
"endianness = (int) BYTE_ORDER, " \
"signed = (boolean) TRUE, " \
"width = (int) 16, " \
"depth = (int) 16, " \
"rate = (int) [ 11025, 48000 ], " \
"channels = (int) [ 1, 2 ]"
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-flac")
);
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (FLAC_SINK_CAPS)
);
enum
{
PROP_0,
PROP_QUALITY,
PROP_STREAMABLE_SUBSET,
PROP_MID_SIDE_STEREO,
PROP_LOOSE_MID_SIDE_STEREO,
PROP_BLOCKSIZE,
PROP_MAX_LPC_ORDER,
PROP_QLP_COEFF_PRECISION,
PROP_QLP_COEFF_PREC_SEARCH,
PROP_ESCAPE_CODING,
PROP_EXHAUSTIVE_MODEL_SEARCH,
PROP_MIN_RESIDUAL_PARTITION_ORDER,
PROP_MAX_RESIDUAL_PARTITION_ORDER,
PROP_RICE_PARAMETER_SEARCH_DIST
};
GST_DEBUG_CATEGORY_STATIC (flacenc_debug);
#define GST_CAT_DEFAULT flacenc_debug
#define _do_init(type) \
G_STMT_START{ \
static const GInterfaceInfo tag_setter_info = { \
NULL, \
NULL, \
NULL \
}; \
g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, \
&tag_setter_info); \
}G_STMT_END
GST_BOILERPLATE_FULL (GstFlacEnc, gst_flacenc, GstElement, GST_TYPE_ELEMENT,
_do_init);
static void gst_flacenc_finalize (GObject * object);
static gboolean gst_flacenc_sink_setcaps (GstPad * pad, GstCaps * caps);
static gboolean gst_flacenc_sink_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_flacenc_chain (GstPad * pad, GstBuffer * buffer);
static gboolean gst_flacenc_update_quality (GstFlacEnc * flacenc, gint quality);
static void gst_flacenc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_flacenc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_flacenc_change_state (GstElement * element,
GstStateChange transition);
static FLAC__StreamEncoderWriteStatus
gst_flacenc_write_callback (const FLAC__SeekableStreamEncoder * encoder,
const FLAC__byte buffer[], unsigned bytes,
unsigned samples, unsigned current_frame, void *client_data);
static FLAC__SeekableStreamEncoderSeekStatus
gst_flacenc_seek_callback (const FLAC__SeekableStreamEncoder * encoder,
FLAC__uint64 absolute_byte_offset, void *client_data);
static FLAC__SeekableStreamEncoderTellStatus
gst_flacenc_tell_callback (const FLAC__SeekableStreamEncoder * encoder,
FLAC__uint64 * absolute_byte_offset, void *client_data);
typedef struct
{
gboolean exhaustive_model_search;
gboolean escape_coding;
gboolean mid_side;
gboolean loose_mid_side;
guint qlp_coeff_precision;
gboolean qlp_coeff_prec_search;
guint min_residual_partition_order;
guint max_residual_partition_order;
guint rice_parameter_search_dist;
guint max_lpc_order;
guint blocksize;
}
GstFlacEncParams;
static const GstFlacEncParams flacenc_params[] = {
{FALSE, FALSE, FALSE, FALSE, 0, FALSE, 2, 2, 0, 0, 1152},
{FALSE, FALSE, TRUE, TRUE, 0, FALSE, 2, 2, 0, 0, 1152},
{FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 3, 0, 0, 1152},
{FALSE, FALSE, FALSE, FALSE, 0, FALSE, 3, 3, 0, 6, 4608},
{FALSE, FALSE, TRUE, TRUE, 0, FALSE, 3, 3, 0, 8, 4608},
{FALSE, FALSE, TRUE, FALSE, 0, FALSE, 3, 3, 0, 8, 4608},
{FALSE, FALSE, TRUE, FALSE, 0, FALSE, 0, 4, 0, 8, 4608},
{TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 8, 4608},
{TRUE, FALSE, TRUE, FALSE, 0, FALSE, 0, 6, 0, 12, 4608},
{TRUE, TRUE, TRUE, FALSE, 0, FALSE, 0, 16, 0, 32, 4608},
};
#define DEFAULT_QUALITY 5
#define GST_TYPE_FLACENC_QUALITY (gst_flacenc_quality_get_type ())
GType
gst_flacenc_quality_get_type (void)
{
static GType qtype = 0;
if (qtype == 0) {
static const GEnumValue values[] = {
{0, "0", "0 - Fastest compression"},
{1, "1", "1"},
{2, "2", "2"},
{3, "3", "3"},
{4, "4", "4"},
{5, "5", "5 - Default"},
{6, "6", "6"},
{7, "7", "7"},
{8, "8", "8 - Highest compression "},
{9, "9", "9 - Insane"},
{0, NULL, NULL}
};
qtype = g_enum_register_static ("GstFlacEncQuality", values);
}
return qtype;
}
static void
gst_flacenc_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_factory));
gst_element_class_set_details (element_class, &flacenc_details);
GST_DEBUG_CATEGORY_INIT (flacenc_debug, "flacenc", 0,
"Flac encoding element");
}
static void
gst_flacenc_class_init (GstFlacEncClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->set_property = gst_flacenc_set_property;
gobject_class->get_property = gst_flacenc_get_property;
gobject_class->finalize = gst_flacenc_finalize;
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_QUALITY,
g_param_spec_enum ("quality",
"Quality",
"Speed versus compression tradeoff",
GST_TYPE_FLACENC_QUALITY, DEFAULT_QUALITY, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_STREAMABLE_SUBSET, g_param_spec_boolean ("streamable_subset",
"Streamable subset",
"true to limit encoder to generating a Subset stream, else false",
TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MID_SIDE_STEREO,
g_param_spec_boolean ("mid_side_stereo", "Do mid side stereo",
"Do mid side stereo (only for stereo input)",
flacenc_params[DEFAULT_QUALITY].mid_side, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_LOOSE_MID_SIDE_STEREO, g_param_spec_boolean ("loose_mid_side_stereo",
"Loose mid side stereo", "Loose mid side stereo",
flacenc_params[DEFAULT_QUALITY].loose_mid_side, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BLOCKSIZE,
g_param_spec_uint ("blocksize", "Blocksize", "Blocksize in samples",
FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE,
flacenc_params[DEFAULT_QUALITY].blocksize, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MAX_LPC_ORDER,
g_param_spec_uint ("max_lpc_order", "Max LPC order",
"Max LPC order; 0 => use only fixed predictors", 0,
FLAC__MAX_LPC_ORDER, flacenc_params[DEFAULT_QUALITY].max_lpc_order,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_QLP_COEFF_PRECISION, g_param_spec_uint ("qlp_coeff_precision",
"QLP coefficients precision",
"Precision in bits of quantized linear-predictor coefficients; 0 = automatic",
0, 32, flacenc_params[DEFAULT_QUALITY].qlp_coeff_precision,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_QLP_COEFF_PREC_SEARCH, g_param_spec_boolean ("qlp_coeff_prec_search",
"Do QLP coefficients precision search",
"false = use qlp_coeff_precision, "
"true = search around qlp_coeff_precision, take best",
flacenc_params[DEFAULT_QUALITY].qlp_coeff_prec_search,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ESCAPE_CODING,
g_param_spec_boolean ("escape_coding", "Do Escape coding",
"search for escape codes in the entropy coding stage "
"for slightly better compression",
flacenc_params[DEFAULT_QUALITY].escape_coding, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_EXHAUSTIVE_MODEL_SEARCH,
g_param_spec_boolean ("exhaustive_model_search",
"Do exhaustive model search",
"do exhaustive search of LP coefficient quantization (expensive!)",
flacenc_params[DEFAULT_QUALITY].exhaustive_model_search,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_MIN_RESIDUAL_PARTITION_ORDER,
g_param_spec_uint ("min_residual_partition_order",
"Min residual partition order",
"Min residual partition order (above 4 doesn't usually help much)", 0,
16, flacenc_params[DEFAULT_QUALITY].min_residual_partition_order,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_MAX_RESIDUAL_PARTITION_ORDER,
g_param_spec_uint ("max_residual_partition_order",
"Max residual partition order",
"Max residual partition order (above 4 doesn't usually help much)", 0,
16, flacenc_params[DEFAULT_QUALITY].max_residual_partition_order,
G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_RICE_PARAMETER_SEARCH_DIST,
g_param_spec_uint ("rice_parameter_search_dist",
"rice_parameter_search_dist",
"0 = try only calc'd parameter k; else try all [k-dist..k+dist] "
"parameters, use best", 0, FLAC__MAX_RICE_PARTITION_ORDER,
flacenc_params[DEFAULT_QUALITY].rice_parameter_search_dist,
G_PARAM_READWRITE));
gstelement_class->change_state = gst_flacenc_change_state;
}
static void
gst_flacenc_init (GstFlacEnc * flacenc, GstFlacEncClass * klass)
{
GstElementClass *eclass = GST_ELEMENT_CLASS (klass);
flacenc->sinkpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (eclass,
"sink"), "sink");
gst_element_add_pad (GST_ELEMENT (flacenc), flacenc->sinkpad);
gst_pad_set_chain_function (flacenc->sinkpad, gst_flacenc_chain);
gst_pad_set_event_function (flacenc->sinkpad, gst_flacenc_sink_event);
gst_pad_set_setcaps_function (flacenc->sinkpad, gst_flacenc_sink_setcaps);
flacenc->srcpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (eclass,
"src"), "src");
gst_pad_use_fixed_caps (flacenc->srcpad);
gst_element_add_pad (GST_ELEMENT (flacenc), flacenc->srcpad);
flacenc->encoder = FLAC__seekable_stream_encoder_new ();
flacenc->offset = 0;
flacenc->samples_written = 0;
gst_flacenc_update_quality (flacenc, DEFAULT_QUALITY);
flacenc->tags = gst_tag_list_new ();
}
static void
gst_flacenc_finalize (GObject * object)
{
GstFlacEnc *flacenc = GST_FLACENC (object);
FLAC__seekable_stream_encoder_delete (flacenc->encoder);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
add_one_tag (const GstTagList * list, const gchar * tag, gpointer user_data)
{
GList *comments;
GList *it;
GstFlacEnc *flacenc = GST_FLACENC (user_data);
comments = gst_tag_to_vorbis_comments (list, tag);
for (it = comments; it != NULL; it = it->next) {
FLAC__StreamMetadata_VorbisComment_Entry commment_entry;
commment_entry.length = strlen (it->data);
commment_entry.entry = it->data;
FLAC__metadata_object_vorbiscomment_insert_comment (flacenc->meta[0],
flacenc->meta[0]->data.vorbis_comment.num_comments,
commment_entry, TRUE);
g_free (it->data);
}
g_list_free (comments);
}
static void
gst_flacenc_set_metadata (GstFlacEnc * flacenc)
{
const GstTagList *user_tags;
GstTagList *copy;
g_return_if_fail (flacenc != NULL);
user_tags = gst_tag_setter_get_list (GST_TAG_SETTER (flacenc));
if ((flacenc->tags == NULL) && (user_tags == NULL)) {
return;
}
copy = gst_tag_list_merge (user_tags, flacenc->tags,
gst_tag_setter_get_merge_mode (GST_TAG_SETTER (flacenc)));
flacenc->meta = g_malloc (sizeof (FLAC__StreamMetadata **));
flacenc->meta[0] =
FLAC__metadata_object_new (FLAC__METADATA_TYPE_VORBIS_COMMENT);
gst_tag_list_foreach (copy, add_one_tag, flacenc);
if (FLAC__seekable_stream_encoder_set_metadata (flacenc->encoder,
flacenc->meta, 1) != true)
g_warning ("Dude, i'm already initialized!");
gst_tag_list_free (copy);
}
static gboolean
gst_flacenc_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstFlacEnc *flacenc;
GstStructure *structure;
FLAC__SeekableStreamEncoderState state;
/* takes a ref on flacenc */
flacenc = GST_FLACENC (gst_pad_get_parent (pad));
if (FLAC__seekable_stream_encoder_get_state (flacenc->encoder) !=
FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
goto encoder_already_initialized;
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "channels", &flacenc->channels)
|| !gst_structure_get_int (structure, "depth", &flacenc->depth)
|| !gst_structure_get_int (structure, "rate", &flacenc->sample_rate))
/* we got caps incompatible with the template? */
g_return_val_if_reached (FALSE);
caps = gst_caps_new_simple ("audio/x-flac",
"channels", G_TYPE_INT, flacenc->channels,
"rate", G_TYPE_INT, flacenc->sample_rate, NULL);
if (!gst_pad_set_caps (flacenc->srcpad, caps))
goto setting_src_caps_failed;
gst_caps_unref (caps);
FLAC__seekable_stream_encoder_set_bits_per_sample (flacenc->encoder,
flacenc->depth);
FLAC__seekable_stream_encoder_set_sample_rate (flacenc->encoder,
flacenc->sample_rate);
FLAC__seekable_stream_encoder_set_channels (flacenc->encoder,
flacenc->channels);
FLAC__seekable_stream_encoder_set_write_callback (flacenc->encoder,
gst_flacenc_write_callback);
FLAC__seekable_stream_encoder_set_seek_callback (flacenc->encoder,
gst_flacenc_seek_callback);
FLAC__seekable_stream_encoder_set_tell_callback (flacenc->encoder,
gst_flacenc_tell_callback);
FLAC__seekable_stream_encoder_set_client_data (flacenc->encoder, flacenc);
gst_flacenc_set_metadata (flacenc);
state = FLAC__seekable_stream_encoder_init (flacenc->encoder);
if (state != FLAC__STREAM_ENCODER_OK)
goto failed_to_initialize;
gst_object_unref (flacenc);
return TRUE;
encoder_already_initialized:
{
g_warning ("flac already initialized -- fixme allow this");
gst_object_unref (flacenc);
return FALSE;
}
setting_src_caps_failed:
{
GST_DEBUG_OBJECT (flacenc,
"Couldn't set caps on source pad: %" GST_PTR_FORMAT, caps);
gst_caps_unref (caps);
gst_object_unref (flacenc);
return FALSE;
}
failed_to_initialize:
{
GST_ELEMENT_ERROR (flacenc, LIBRARY, INIT, (NULL),
("could not initialize encoder (wrong parameters?)"));
gst_object_unref (flacenc);
return FALSE;
}
}
static gboolean
gst_flacenc_update_quality (GstFlacEnc * flacenc, gint quality)
{
flacenc->quality = quality;
#define DO_UPDATE(name, val, str) \
G_STMT_START { \
if (FLAC__seekable_stream_encoder_get_##name (flacenc->encoder) != \
flacenc_params[quality].val) { \
FLAC__seekable_stream_encoder_set_##name (flacenc->encoder, \
flacenc_params[quality].val); \
g_object_notify (G_OBJECT (flacenc), str); \
} \
} G_STMT_END
g_object_freeze_notify (G_OBJECT (flacenc));
if (flacenc->channels == 2) {
DO_UPDATE (do_mid_side_stereo, mid_side, "mid_side_stereo");
DO_UPDATE (loose_mid_side_stereo, loose_mid_side, "loose_mid_side");
}
DO_UPDATE (blocksize, blocksize, "blocksize");
DO_UPDATE (max_lpc_order, max_lpc_order, "max_lpc_order");
DO_UPDATE (qlp_coeff_precision, qlp_coeff_precision, "qlp_coeff_precision");
DO_UPDATE (do_qlp_coeff_prec_search, qlp_coeff_prec_search,
"qlp_coeff_prec_search");
DO_UPDATE (do_escape_coding, escape_coding, "escape_coding");
DO_UPDATE (do_exhaustive_model_search, exhaustive_model_search,
"exhaustive_model_search");
DO_UPDATE (min_residual_partition_order, min_residual_partition_order,
"min_residual_partition_order");
DO_UPDATE (max_residual_partition_order, max_residual_partition_order,
"max_residual_partition_order");
DO_UPDATE (rice_parameter_search_dist, rice_parameter_search_dist,
"rice_parameter_search_dist");
#undef DO_UPDATE
g_object_thaw_notify (G_OBJECT (flacenc));
return TRUE;
}
static FLAC__SeekableStreamEncoderSeekStatus
gst_flacenc_seek_callback (const FLAC__SeekableStreamEncoder * encoder,
FLAC__uint64 absolute_byte_offset, void *client_data)
{
GstFlacEnc *flacenc;
GstEvent *event;
GstPad *peerpad;
flacenc = GST_FLACENC (client_data);
if (flacenc->stopped)
return FLAC__STREAM_ENCODER_OK;
event = gst_event_new_newsegment (TRUE, 1.0, GST_FORMAT_BYTES,
absolute_byte_offset, GST_BUFFER_OFFSET_NONE, 0);
if ((peerpad = gst_pad_get_peer (flacenc->srcpad))) {
gboolean ret = gst_pad_send_event (peerpad, event);
gst_object_unref (peerpad);
GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " %s", absolute_byte_offset,
(ret) ? "succeeded" : "failed");
} else {
GST_DEBUG ("Seek to %" G_GUINT64_FORMAT " failed (no peer pad)",
absolute_byte_offset);
}
flacenc->offset = absolute_byte_offset;
return FLAC__STREAM_ENCODER_OK;
}
static FLAC__StreamEncoderWriteStatus
gst_flacenc_write_callback (const FLAC__SeekableStreamEncoder * encoder,
const FLAC__byte buffer[], unsigned bytes,
unsigned samples, unsigned current_frame, void *client_data)
{
GstFlowReturn ret;
GstFlacEnc *flacenc;
GstBuffer *outbuf;
flacenc = GST_FLACENC (client_data);
if (flacenc->stopped)
return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
if (gst_pad_alloc_buffer (flacenc->srcpad, flacenc->offset, bytes,
GST_PAD_CAPS (flacenc->srcpad), &outbuf) != GST_FLOW_OK) {
return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
}
memcpy (GST_BUFFER_DATA (outbuf), buffer, bytes);
if (samples > 0 && flacenc->samples_written != (guint64) - 1) {
GST_BUFFER_TIMESTAMP (outbuf) =
GST_FRAMES_TO_CLOCK_TIME (flacenc->samples_written,
flacenc->sample_rate);
GST_BUFFER_DURATION (outbuf) =
GST_FRAMES_TO_CLOCK_TIME (samples, flacenc->sample_rate);
/* offset_end = granulepos for ogg muxer */
GST_BUFFER_OFFSET_END (outbuf) = flacenc->samples_written + samples;
} else {
GST_BUFFER_TIMESTAMP (outbuf) = GST_CLOCK_TIME_NONE;
GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE;
}
GST_DEBUG ("Pushing buffer: ts=%" GST_TIME_FORMAT ", samples=%u, size=%u, "
"pos=%" G_GUINT64_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)),
samples, bytes, flacenc->offset);
ret = gst_pad_push (flacenc->srcpad, outbuf);
flacenc->offset += bytes;
flacenc->samples_written += samples;
if (ret != GST_FLOW_OK && GST_FLOW_IS_FATAL (ret))
return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
}
static FLAC__SeekableStreamEncoderTellStatus
gst_flacenc_tell_callback (const FLAC__SeekableStreamEncoder * encoder,
FLAC__uint64 * absolute_byte_offset, void *client_data)
{
GstFlacEnc *flacenc = GST_FLACENC (client_data);
*absolute_byte_offset = flacenc->offset;
return FLAC__STREAM_ENCODER_OK;
}
static gboolean
gst_flacenc_sink_event (GstPad * pad, GstEvent * event)
{
GstFlacEnc *flacenc;
GstTagList *taglist;
gboolean ret = TRUE;
flacenc = GST_FLACENC (gst_pad_get_parent (pad));
GST_DEBUG ("Received %s event on sinkpad", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:{
GstFormat format;
gint64 start, stream_time;
GST_STREAM_LOCK (pad);
if (flacenc->offset == 0) {
gst_event_parse_newsegment (event, NULL, NULL, &format, &start, NULL,
&stream_time);
} else {
start = -1;
}
if (start != 0) {
if (flacenc->offset > 0)
GST_DEBUG ("Not handling mid-stream newsegment event");
else
GST_DEBUG ("Not handling newsegment event with non-zero start");
} else {
GstEvent *e = gst_event_new_newsegment (FALSE, 1.0, GST_FORMAT_BYTES,
0, -1, 0);
ret = gst_pad_push_event (flacenc->srcpad, e);
}
if (stream_time != 0) {
GST_DEBUG ("Not handling non-zero stream time");
}
gst_event_unref (event);
/* don't push it downstream, we'll generate our own via seek to 0 */
GST_STREAM_UNLOCK (pad);
break;
}
case GST_EVENT_EOS:
GST_STREAM_LOCK (pad);
FLAC__seekable_stream_encoder_finish (flacenc->encoder);
ret = gst_pad_event_default (pad, event);
GST_STREAM_UNLOCK (pad);
break;
case GST_EVENT_TAG:
if (flacenc->tags) {
gst_event_parse_tag (event, &taglist);
gst_tag_list_insert (flacenc->tags, taglist, GST_TAG_MERGE_REPLACE);
} else {
g_assert_not_reached ();
}
GST_STREAM_LOCK (pad);
ret = gst_pad_event_default (pad, event);
GST_STREAM_UNLOCK (pad);
break;
default:
ret = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (flacenc);
return ret;
}
static GstFlowReturn
gst_flacenc_chain (GstPad * pad, GstBuffer * buffer)
{
GstFlacEnc *flacenc;
FLAC__int32 *data;
gulong insize;
gint samples, depth;
gulong i;
FLAC__bool res;
flacenc = GST_FLACENC (gst_pad_get_parent (pad));
depth = flacenc->depth;
insize = GST_BUFFER_SIZE (buffer);
samples = insize / ((depth + 7) >> 3);
data = g_malloc (samples * sizeof (FLAC__int32));
if (depth == 8) {
gint8 *indata = (gint8 *) GST_BUFFER_DATA (buffer);
for (i = 0; i < samples; i++)
data[i] = (FLAC__int32) indata[i];
} else if (depth == 16) {
gint16 *indata = (gint16 *) GST_BUFFER_DATA (buffer);
for (i = 0; i < samples; i++)
data[i] = (FLAC__int32) indata[i];
} else {
g_assert_not_reached ();
}
gst_buffer_unref (buffer);
res = FLAC__seekable_stream_encoder_process_interleaved (flacenc->encoder,
(const FLAC__int32 *) data, samples / flacenc->channels);
g_free (data);
gst_object_unref (flacenc);
if (res)
return GST_FLOW_OK;
else
return GST_FLOW_ERROR;
}
static void
gst_flacenc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstFlacEnc *this = GST_FLACENC (object);
GST_LOCK (this);
switch (prop_id) {
case PROP_QUALITY:
gst_flacenc_update_quality (this, g_value_get_enum (value));
break;
case PROP_STREAMABLE_SUBSET:
FLAC__seekable_stream_encoder_set_streamable_subset (this->encoder,
g_value_get_boolean (value));
break;
case PROP_MID_SIDE_STEREO:
FLAC__seekable_stream_encoder_set_do_mid_side_stereo (this->encoder,
g_value_get_boolean (value));
break;
case PROP_LOOSE_MID_SIDE_STEREO:
FLAC__seekable_stream_encoder_set_loose_mid_side_stereo (this->encoder,
g_value_get_boolean (value));
break;
case PROP_BLOCKSIZE:
FLAC__seekable_stream_encoder_set_blocksize (this->encoder,
g_value_get_uint (value));
break;
case PROP_MAX_LPC_ORDER:
FLAC__seekable_stream_encoder_set_max_lpc_order (this->encoder,
g_value_get_uint (value));
break;
case PROP_QLP_COEFF_PRECISION:
FLAC__seekable_stream_encoder_set_qlp_coeff_precision (this->encoder,
g_value_get_uint (value));
break;
case PROP_QLP_COEFF_PREC_SEARCH:
FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search (this->encoder,
g_value_get_boolean (value));
break;
case PROP_ESCAPE_CODING:
FLAC__seekable_stream_encoder_set_do_escape_coding (this->encoder,
g_value_get_boolean (value));
break;
case PROP_EXHAUSTIVE_MODEL_SEARCH:
FLAC__seekable_stream_encoder_set_do_exhaustive_model_search (this->
encoder, g_value_get_boolean (value));
break;
case PROP_MIN_RESIDUAL_PARTITION_ORDER:
FLAC__seekable_stream_encoder_set_min_residual_partition_order (this->
encoder, g_value_get_uint (value));
break;
case PROP_MAX_RESIDUAL_PARTITION_ORDER:
FLAC__seekable_stream_encoder_set_max_residual_partition_order (this->
encoder, g_value_get_uint (value));
break;
case PROP_RICE_PARAMETER_SEARCH_DIST:
FLAC__seekable_stream_encoder_set_rice_parameter_search_dist (this->
encoder, g_value_get_uint (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_UNLOCK (this);
}
static void
gst_flacenc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstFlacEnc *this = GST_FLACENC (object);
GST_LOCK (this);
switch (prop_id) {
case PROP_QUALITY:
g_value_set_enum (value, this->quality);
break;
case PROP_STREAMABLE_SUBSET:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_streamable_subset (this->encoder));
break;
case PROP_MID_SIDE_STEREO:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_do_mid_side_stereo (this->encoder));
break;
case PROP_LOOSE_MID_SIDE_STEREO:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_loose_mid_side_stereo (this->
encoder));
break;
case PROP_BLOCKSIZE:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_blocksize (this->encoder));
break;
case PROP_MAX_LPC_ORDER:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_max_lpc_order (this->encoder));
break;
case PROP_QLP_COEFF_PRECISION:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_qlp_coeff_precision (this->
encoder));
break;
case PROP_QLP_COEFF_PREC_SEARCH:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search (this->
encoder));
break;
case PROP_ESCAPE_CODING:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_do_escape_coding (this->encoder));
break;
case PROP_EXHAUSTIVE_MODEL_SEARCH:
g_value_set_boolean (value,
FLAC__seekable_stream_encoder_get_do_exhaustive_model_search (this->
encoder));
break;
case PROP_MIN_RESIDUAL_PARTITION_ORDER:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_min_residual_partition_order (this->
encoder));
break;
case PROP_MAX_RESIDUAL_PARTITION_ORDER:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_max_residual_partition_order (this->
encoder));
break;
case PROP_RICE_PARAMETER_SEARCH_DIST:
g_value_set_uint (value,
FLAC__seekable_stream_encoder_get_rice_parameter_search_dist (this->
encoder));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_UNLOCK (this);
}
static GstStateChangeReturn
gst_flacenc_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstFlacEnc *flacenc = GST_FLACENC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
case GST_STATE_CHANGE_READY_TO_PAUSED:
flacenc->stopped = FALSE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (FLAC__seekable_stream_encoder_get_state (flacenc->encoder) !=
FLAC__STREAM_ENCODER_UNINITIALIZED) {
flacenc->stopped = TRUE;
FLAC__seekable_stream_encoder_finish (flacenc->encoder);
}
flacenc->offset = 0;
flacenc->samples_written = 0;
if (flacenc->meta) {
FLAC__metadata_object_delete (flacenc->meta[0]);
g_free (flacenc->meta);
flacenc->meta = NULL;
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
default:
break;
}
return ret;
}
Reference in a new issue View git blame Copy permalink