gstreamer/gst/audioconvert/gstaudioconvert.c

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/* GStreamer
* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
* Copyright (C) 2005 Thomas Vander Stichele <thomas at apestaart dot org>
*
* gstaudioconvert.c: Convert audio to different audio formats automatically
*
* 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.
*/
/*
* design decisions:
* - audioconvert converts buffers in a set of supported caps. If it supports
* a caps, it supports conversion from these caps to any other caps it
* supports. (example: if it does A=>B and A=>C, it also does B=>C)
* - audioconvert does not save state between buffers. Every incoming buffer is
* converted and the converted buffer is pushed out.
* conclusion:
* audioconvert is not supposed to be a one-element-does-anything solution for
* audio conversions.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
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#include <gst/audio/multichannel.h>
#include <string.h>
#include "gstchannelmix.h"
#include "plugin.h"
GST_DEBUG_CATEGORY (audio_convert_debug);
/* int to float conversion: int2float(i) = 1 / (2^31-1) * i */
#define INT2FLOAT(i) (4.6566128752457969e-10 * ((gfloat)i))
/*** DEFINITIONS **************************************************************/
static GstElementDetails audio_convert_details = {
"Audio Conversion",
"Filter/Converter/Audio",
"Convert audio to different formats",
"Benjamin Otte <in7y118@public.uni-hamburg.de>",
};
/* type functions */
static void gst_audio_convert_base_init (gpointer g_class);
static void gst_audio_convert_class_init (GstAudioConvertClass * klass);
static void gst_audio_convert_init (GstAudioConvert * audio_convert);
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static void gst_audio_convert_dispose (GObject * obj);
/* gstreamer functions */
static GstBuffer *gst_audio_convert_buffer_to_default_format (GstAudioConvert *
this, GstBuffer * buf);
static GstBuffer *gst_audio_convert_buffer_from_default_format (GstAudioConvert
* this, GstBuffer * buf);
static GstBuffer *gst_audio_convert_channels (GstAudioConvert * this,
GstBuffer * buf);
static gboolean gst_audio_convert_parse_caps (const GstCaps * gst_caps,
GstAudioConvertCaps * caps);
gboolean audio_convert_get_unit_size (GstBaseTransform * base, GstCaps * caps,
guint * size);
GstCaps *audio_convert_transform_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps);
void audio_convert_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
gboolean audio_convert_set_caps (GstBaseTransform * base, GstCaps * incaps,
GstCaps * outcaps);
static GstFlowReturn
audio_convert_transform (GstBaseTransform * base, GstBuffer * inbuf,
GstBuffer * outbuf);
/* AudioConvert signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_AGGRESSIVE
};
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (audio_convert_debug, "audioconvert", 0, "audio conversion element");
GST_BOILERPLATE_FULL (GstAudioConvert, gst_audio_convert, GstBaseTransform,
GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
/*** GSTREAMER PROTOTYPES *****************************************************/
#define STATIC_CAPS \
GST_STATIC_CAPS ( \
"audio/x-raw-float, " \
"rate = (int) [ 1, MAX ], " \
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"channels = (int) [ 1, 8 ], " \
"endianness = (int) BYTE_ORDER, " \
"width = (int) 32, " \
"buffer-frames = (int) [ 0, MAX ];" \
"audio/x-raw-int, " \
"rate = (int) [ 1, MAX ], " \
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"channels = (int) [ 1, 8 ], " \
"endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, " \
"width = (int) 32, " \
"depth = (int) [ 1, 32 ], " \
"signed = (boolean) { true, false }; " \
configure.ac: Add dvdlpcmdec Original commit message from CVS: * configure.ac: Add dvdlpcmdec * ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_reset), (free_all_buffers), (gst_mpeg2dec_alloc_buffer): Don't push buffers if the src pad isn't negotiated yet. * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_buffer_to_default_format), (gst_audio_convert_buffer_from_default_format): Add support for 24-bit width. * gst/dvdlpcmdec/.cvsignore: * gst/dvdlpcmdec/Makefile.am: * gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_get_type), (gst_dvdlpcmdec_base_init), (gst_dvdlpcmdec_class_init), (gst_dvdlpcm_reset), (gst_dvdlpcmdec_init), (gst_dvdlpcmdec_link), (gst_dvdlpcmdec_chain), (gst_dvdlpcmdec_change_state), (plugin_init): * gst/dvdlpcmdec/gstdvdlpcmdec.h: New decoder for rearranging DVD LPCM into our audio/x-raw-int format. Needs support for the channels maps if someone can find a DVD LPCM track with > 2 channels. * gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_send_discont), (gst_dvd_demux_handle_discont), (gst_dvd_demux_get_audio_stream), (gst_dvd_demux_process_private): * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_discont), (gst_mpeg_demux_new_output_pad), (gst_mpeg_demux_init_stream), (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_handle_src_query): * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_reset), (gst_mpeg_parse_parse_packhead), (gst_mpeg_parse_loop), (gst_mpeg_parse_get_rate), (gst_mpeg_parse_convert_src), (gst_mpeg_parse_handle_src_query), (gst_mpeg_parse_handle_src_event): Use audio/x-dvd-lpcm for LPCM output. Add DTS output.
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"audio/x-raw-int, " \
"rate = (int) [ 1, MAX ], " \
"channels = (int) [ 1, 8 ], " \
"endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, " \
"width = (int) 24, " \
"depth = (int) [ 1, 24 ], " \
"signed = (boolean) { true, false }; " \
"audio/x-raw-int, " \
"rate = (int) [ 1, MAX ], " \
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"channels = (int) [ 1, 8 ], " \
"endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, " \
"width = (int) 16, " \
"depth = (int) [ 1, 16 ], " \
"signed = (boolean) { true, false }; " \
"audio/x-raw-int, " \
"rate = (int) [ 1, MAX ], " \
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"channels = (int) [ 1, 8 ], " \
"endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, " \
"width = (int) 8, " \
"depth = (int) [ 1, 8 ], " \
"signed = (boolean) { true, false } " \
)
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static GstAudioChannelPosition *supported_positions;
static GstStaticCaps gst_audio_convert_static_caps = STATIC_CAPS;
static GstStaticPadTemplate gst_audio_convert_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
STATIC_CAPS);
static GstStaticPadTemplate gst_audio_convert_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
STATIC_CAPS);
/*** TYPE FUNCTIONS ***********************************************************/
static void
gst_audio_convert_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 (&gst_audio_convert_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_audio_convert_sink_template));
gst_element_class_set_details (element_class, &audio_convert_details);
}
static void
gst_audio_convert_class_init (GstAudioConvertClass * klass)
{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gint i;
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gobject_class->dispose = gst_audio_convert_dispose;
supported_positions = g_new0 (GstAudioChannelPosition,
GST_AUDIO_CHANNEL_POSITION_NUM);
for (i = 0; i < GST_AUDIO_CHANNEL_POSITION_NUM; i++)
supported_positions[i] = i;
GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size =
GST_DEBUG_FUNCPTR (audio_convert_get_unit_size);
GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
GST_DEBUG_FUNCPTR (audio_convert_transform_caps);
GST_BASE_TRANSFORM_CLASS (klass)->fixate_caps =
GST_DEBUG_FUNCPTR (audio_convert_fixate_caps);
GST_BASE_TRANSFORM_CLASS (klass)->set_caps =
GST_DEBUG_FUNCPTR (audio_convert_set_caps);
GST_BASE_TRANSFORM_CLASS (klass)->transform =
GST_DEBUG_FUNCPTR (audio_convert_transform);
}
static void
gst_audio_convert_init (GstAudioConvert * this)
{
/* clear important variables */
this->convert_internal = NULL;
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this->sinkcaps.pos = NULL;
this->srccaps.pos = NULL;
this->matrix = NULL;
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}
static void
gst_audio_convert_dispose (GObject * obj)
{
GstAudioConvert *this = GST_AUDIO_CONVERT (obj);
if (this->sinkcaps.pos) {
g_free (this->sinkcaps.pos);
this->sinkcaps.pos = NULL;
}
if (this->srccaps.pos) {
g_free (this->srccaps.pos);
this->srccaps.pos = NULL;
}
gst_audio_convert_unset_matrix (this);
G_OBJECT_CLASS (parent_class)->dispose (obj);
}
/*** GSTREAMER FUNCTIONS ******************************************************/
/* BaseTransform vmethods */
gboolean
audio_convert_get_unit_size (GstBaseTransform * base, GstCaps * caps,
guint * size)
{
GstAudioConvertCaps ac_caps;
g_return_val_if_fail (size, FALSE);
memset (&ac_caps, 0, sizeof (ac_caps));
if (!gst_audio_convert_parse_caps (caps, &ac_caps)) {
g_free (ac_caps.pos);
return FALSE;
}
g_free (ac_caps.pos);
*size = ac_caps.width * ac_caps.channels / 8;
return TRUE;
}
/* audioconvert can convert anything except sample rate; so return template
* caps with rate fixed */
/* FIXME:
* it would be smart here to return the caps with the same width as the first
*/
GstCaps *
audio_convert_transform_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps)
{
int i;
const GValue *rate;
g_return_val_if_fail (GST_CAPS_IS_SIMPLE (caps), NULL);
GstStructure *structure = gst_caps_get_structure (caps, 0);
GstCaps *ret = gst_static_caps_get (&gst_audio_convert_static_caps);
ret = gst_caps_make_writable (ret);
rate = gst_structure_get_value (structure, "rate");
if (!rate) {
return ret;
}
for (i = 0; i < gst_caps_get_size (ret); ++i) {
structure = gst_caps_get_structure (ret, i);
gst_structure_set_value (structure, "rate", rate);
}
return ret;
}
/* try to keep as many of the structure members the same by fixating the
* possible ranges; this way we convert the least amount of things as possible
*/
void
audio_convert_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstStructure *ins, *outs;
gint rate, endianness, depth;
gboolean signedness;
g_return_if_fail (gst_caps_is_fixed (caps));
GST_DEBUG_OBJECT (base, "trying to fixate othercaps %" GST_PTR_FORMAT
" based on caps %" GST_PTR_FORMAT, othercaps, caps);
ins = gst_caps_get_structure (caps, 0);
outs = gst_caps_get_structure (othercaps, 0);
if (gst_structure_get_int (ins, "rate", &rate)) {
if (gst_structure_has_field (outs, "rate")) {
gst_caps_structure_fixate_field_nearest_int (outs, "rate", rate);
}
}
if (gst_structure_get_int (ins, "endianness", &endianness)) {
if (gst_structure_has_field (outs, "endianness")) {
gst_caps_structure_fixate_field_nearest_int (outs, "endianness",
endianness);
}
}
if (gst_structure_get_int (ins, "depth", &depth)) {
if (gst_structure_has_field (outs, "depth")) {
gst_caps_structure_fixate_field_nearest_int (outs, "depth", depth);
}
}
if (gst_structure_get_boolean (ins, "signed", &signedness)) {
if (gst_structure_has_field (outs, "signed")) {
gst_caps_structure_fixate_field_boolean (outs, "signed", signedness);
}
}
GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
}
gboolean
audio_convert_set_caps (GstBaseTransform * base, GstCaps * incaps,
GstCaps * outcaps)
{
GstAudioConvertCaps in_ac_caps = { 0 };
GstAudioConvertCaps out_ac_caps = { 0 };
GstAudioConvert *this = GST_AUDIO_CONVERT (base);
GST_DEBUG_OBJECT (base, "incaps %" GST_PTR_FORMAT ", outcaps %"
GST_PTR_FORMAT, incaps, outcaps);
in_ac_caps.pos = NULL;
if (!gst_audio_convert_parse_caps (incaps, &in_ac_caps))
return FALSE;
out_ac_caps.pos = NULL;
if (!gst_audio_convert_parse_caps (outcaps, &out_ac_caps))
return FALSE;
this->sinkcaps = in_ac_caps;
this->srccaps = out_ac_caps;
GST_DEBUG ("setting up matrix");
gst_audio_convert_setup_matrix (this);
GST_DEBUG ("set up matrix, %p", this->matrix);
return TRUE;
}
static GstFlowReturn
audio_convert_transform (GstBaseTransform * base, GstBuffer * inbuf,
GstBuffer * outbuf)
{
GstAudioConvert *this = GST_AUDIO_CONVERT (base);
GstBuffer *buf;
/*
* Theory of operation:
* - convert the format (endianness, signedness, width, depth) to
* (G_BYTE_ORDER, TRUE, 32, 32)
* - convert rate and channels
* - convert back to output format
*/
/* FIXME: optimize for copying */
buf = gst_buffer_copy (inbuf);
buf = gst_audio_convert_buffer_to_default_format (this, buf);
buf = gst_audio_convert_channels (this, buf);
buf = gst_audio_convert_buffer_from_default_format (this, buf);
memcpy (GST_BUFFER_DATA (outbuf), GST_BUFFER_DATA (buf),
GST_BUFFER_SIZE (outbuf));
gst_buffer_unref (buf);
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return GST_FLOW_OK;
}
/* convert the given GstCaps to our ghetto format */
static gboolean
gst_audio_convert_parse_caps (const GstCaps * gst_caps,
GstAudioConvertCaps * caps)
{
GstStructure *structure = gst_caps_get_structure (gst_caps, 0);
GST_DEBUG ("parse caps %p and %" GST_PTR_FORMAT, gst_caps, gst_caps);
g_return_val_if_fail (gst_caps_is_fixed (gst_caps), FALSE);
g_return_val_if_fail (caps != NULL, FALSE);
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/* cleanup old */
if (caps->pos) {
g_free (caps->pos);
caps->pos = NULL;
}
caps->endianness = G_BYTE_ORDER;
caps->is_int =
(strcmp (gst_structure_get_name (structure), "audio/x-raw-int") == 0);
if (!gst_structure_get_int (structure, "channels", &caps->channels)
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|| !(caps->pos = gst_audio_get_channel_positions (structure))
|| !gst_structure_get_int (structure, "width", &caps->width)
|| !gst_structure_get_int (structure, "rate", &caps->rate)
|| (caps->is_int
&& (!gst_structure_get_boolean (structure, "signed", &caps->sign)
|| !gst_structure_get_int (structure, "depth", &caps->depth)
|| (caps->width != 8
&& !gst_structure_get_int (structure, "endianness",
&caps->endianness)))) || (!caps->is_int
&& !gst_structure_get_int (structure, "buffer-frames",
&caps->buffer_frames))) {
GST_DEBUG ("could not get some values from structure");
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g_free (caps->pos);
caps->pos = NULL;
return FALSE;
}
if (caps->is_int && caps->depth > caps->width) {
GST_DEBUG ("width > depth, not allowed - make us advertise correct caps");
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g_free (caps->pos);
caps->pos = NULL;
return FALSE;
}
return TRUE;
}
/* return a writable buffer of size which ideally is the same as before
- You must unref the new buffer
- The size of the old buffer is undefined after this operation */
static GstBuffer *
gst_audio_convert_get_buffer (GstBuffer * buf, guint size)
{
GstBuffer *ret;
g_assert (GST_IS_BUFFER (buf));
GST_LOG
Port from GstData to GstMiniObject. Original commit message from CVS: Port from GstData to GstMiniObject. * ext/ogg/gstoggdemux.c: (gst_ogg_pad_dispose): * ext/ogg/gstoggmux.c: (gst_ogg_mux_buffer_from_page), (gst_ogg_mux_queue_pads), (gst_ogg_mux_set_header_on_caps), (gst_ogg_mux_collected): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_comment_packet), (theora_handle_data_packet): * ext/theora/theoraenc.c: (theora_buffer_from_packet), (theora_set_header_on_caps), (theora_enc_chain): * ext/vorbis/vorbisdec.c: (vorbis_dec_sink_event), (vorbis_handle_comment_packet): * ext/vorbis/vorbisenc.c: (gst_vorbisenc_set_header_on_caps): * ext/vorbis/vorbisparse.c: (vorbis_parse_set_header_on_caps): * gst-libs/gst/audio/gstaudiofilter.c: (gst_audiofilter_chain): * gst-libs/gst/tag/gstvorbistag.c: (gst_vorbis_tag_chain): * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_get_buffer): * gst/playback/gstdecodebin.c: (gst_decode_bin_class_init): * gst/playback/gstplaybasebin.c: (check_queue), (probe_triggered), (mute_stream), (silence_stream): * gst/playback/gstplaybin.c: (gst_play_bin_class_init): * gst/volume/gstvolume.c: (volume_transform): * sys/ximage/ximagesink.c: (gst_ximage_buffer_finalize), (gst_ximage_buffer_init), (gst_ximage_buffer_class_init), (gst_ximage_buffer_get_type), (gst_ximagesink_check_xshm_calls), (gst_ximagesink_ximage_new), (gst_ximagesink_ximage_destroy), (gst_ximagesink_ximage_put), (gst_ximagesink_imagepool_clear), (gst_ximagesink_show_frame), (gst_ximagesink_buffer_free), (gst_ximagesink_buffer_alloc): * sys/ximage/ximagesink.h:
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("new buffer of size %u requested. Current is: data: %p - size: %u",
size, buf->data, buf->size);
if (buf->size >= size && gst_buffer_is_writable (buf)) {
gst_buffer_ref (buf);
buf->size = size;
GST_LOG
Port from GstData to GstMiniObject. Original commit message from CVS: Port from GstData to GstMiniObject. * ext/ogg/gstoggdemux.c: (gst_ogg_pad_dispose): * ext/ogg/gstoggmux.c: (gst_ogg_mux_buffer_from_page), (gst_ogg_mux_queue_pads), (gst_ogg_mux_set_header_on_caps), (gst_ogg_mux_collected): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_comment_packet), (theora_handle_data_packet): * ext/theora/theoraenc.c: (theora_buffer_from_packet), (theora_set_header_on_caps), (theora_enc_chain): * ext/vorbis/vorbisdec.c: (vorbis_dec_sink_event), (vorbis_handle_comment_packet): * ext/vorbis/vorbisenc.c: (gst_vorbisenc_set_header_on_caps): * ext/vorbis/vorbisparse.c: (vorbis_parse_set_header_on_caps): * gst-libs/gst/audio/gstaudiofilter.c: (gst_audiofilter_chain): * gst-libs/gst/tag/gstvorbistag.c: (gst_vorbis_tag_chain): * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_get_buffer): * gst/playback/gstdecodebin.c: (gst_decode_bin_class_init): * gst/playback/gstplaybasebin.c: (check_queue), (probe_triggered), (mute_stream), (silence_stream): * gst/playback/gstplaybin.c: (gst_play_bin_class_init): * gst/volume/gstvolume.c: (volume_transform): * sys/ximage/ximagesink.c: (gst_ximage_buffer_finalize), (gst_ximage_buffer_init), (gst_ximage_buffer_class_init), (gst_ximage_buffer_get_type), (gst_ximagesink_check_xshm_calls), (gst_ximagesink_ximage_new), (gst_ximagesink_ximage_destroy), (gst_ximagesink_ximage_put), (gst_ximagesink_imagepool_clear), (gst_ximagesink_show_frame), (gst_ximagesink_buffer_free), (gst_ximagesink_buffer_alloc): * sys/ximage/ximagesink.h:
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("returning same buffer with adjusted values. data: %p - size: %u",
buf->data, buf->size);
return buf;
} else {
ret = gst_buffer_new_and_alloc (size);
g_assert (ret);
gst_buffer_stamp (ret, buf);
Port from GstData to GstMiniObject. Original commit message from CVS: Port from GstData to GstMiniObject. * ext/ogg/gstoggdemux.c: (gst_ogg_pad_dispose): * ext/ogg/gstoggmux.c: (gst_ogg_mux_buffer_from_page), (gst_ogg_mux_queue_pads), (gst_ogg_mux_set_header_on_caps), (gst_ogg_mux_collected): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_comment_packet), (theora_handle_data_packet): * ext/theora/theoraenc.c: (theora_buffer_from_packet), (theora_set_header_on_caps), (theora_enc_chain): * ext/vorbis/vorbisdec.c: (vorbis_dec_sink_event), (vorbis_handle_comment_packet): * ext/vorbis/vorbisenc.c: (gst_vorbisenc_set_header_on_caps): * ext/vorbis/vorbisparse.c: (vorbis_parse_set_header_on_caps): * gst-libs/gst/audio/gstaudiofilter.c: (gst_audiofilter_chain): * gst-libs/gst/tag/gstvorbistag.c: (gst_vorbis_tag_chain): * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_get_buffer): * gst/playback/gstdecodebin.c: (gst_decode_bin_class_init): * gst/playback/gstplaybasebin.c: (check_queue), (probe_triggered), (mute_stream), (silence_stream): * gst/playback/gstplaybin.c: (gst_play_bin_class_init): * gst/volume/gstvolume.c: (volume_transform): * sys/ximage/ximagesink.c: (gst_ximage_buffer_finalize), (gst_ximage_buffer_init), (gst_ximage_buffer_class_init), (gst_ximage_buffer_get_type), (gst_ximagesink_check_xshm_calls), (gst_ximagesink_ximage_new), (gst_ximagesink_ximage_destroy), (gst_ximagesink_ximage_put), (gst_ximagesink_imagepool_clear), (gst_ximagesink_show_frame), (gst_ximagesink_buffer_free), (gst_ximagesink_buffer_alloc): * sys/ximage/ximagesink.h:
2005-05-16 15:35:52 +00:00
GST_LOG ("returning new buffer. data: %p - size: %u", ret->data, ret->size);
return ret;
}
}
static inline guint8
GUINT8_IDENTITY (guint8 x)
{
return x;
}
static inline guint8
GINT8_IDENTITY (gint8 x)
{
return x;
}
#define CONVERT_TO(to, from, type, sign, endianness, LE_FUNC, BE_FUNC) \
G_STMT_START { \
type value; \
memcpy (&value, from, sizeof (type)); \
from -= sizeof (type); \
value = (endianness == G_LITTLE_ENDIAN) ? \
LE_FUNC (value) : BE_FUNC (value); \
if (sign) { \
to = value; \
} else { \
to = (gint64) value - (1 << (sizeof (type) * 8 - 1)); \
} \
} G_STMT_END;
static GstBuffer *
gst_audio_convert_buffer_to_default_format (GstAudioConvert * this,
GstBuffer * buf)
{
GstBaseTransform *base = GST_BASE_TRANSFORM (this);
GstBuffer *ret;
gint i, count;
gint64 cur = 0;
gint32 write;
gint32 *dest;
guint8 *src;
GST_LOG_OBJECT (base, "converting buffer of size %d to default format",
GST_BUFFER_SIZE (buf));
if (this->sinkcaps.is_int) {
if (this->sinkcaps.width == 32 && this->sinkcaps.depth == 32 &&
this->sinkcaps.endianness == G_BYTE_ORDER
&& this->sinkcaps.sign == TRUE)
return buf;
ret =
gst_audio_convert_get_buffer (buf,
buf->size * 32 / this->sinkcaps.width);
gst_buffer_set_caps (ret, GST_PAD_CAPS (base->srcpad));
count = ret->size / 4;
src = buf->data + (count - 1) * (this->sinkcaps.width / 8);
dest = (gint32 *) ret->data;
for (i = count - 1; i >= 0; i--) {
switch (this->sinkcaps.width) {
case 8:
if (this->sinkcaps.sign) {
CONVERT_TO (cur, src, gint8, this->sinkcaps.sign,
this->sinkcaps.endianness, GINT8_IDENTITY, GINT8_IDENTITY);
} else {
CONVERT_TO (cur, src, guint8, this->sinkcaps.sign,
this->sinkcaps.endianness, GUINT8_IDENTITY, GUINT8_IDENTITY);
}
break;
case 16:
if (this->sinkcaps.sign) {
CONVERT_TO (cur, src, gint16, this->sinkcaps.sign,
this->sinkcaps.endianness, GINT16_FROM_LE, GINT16_FROM_BE);
} else {
CONVERT_TO (cur, src, guint16, this->sinkcaps.sign,
this->sinkcaps.endianness, GUINT16_FROM_LE, GUINT16_FROM_BE);
}
break;
configure.ac: Add dvdlpcmdec Original commit message from CVS: * configure.ac: Add dvdlpcmdec * ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_reset), (free_all_buffers), (gst_mpeg2dec_alloc_buffer): Don't push buffers if the src pad isn't negotiated yet. * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_buffer_to_default_format), (gst_audio_convert_buffer_from_default_format): Add support for 24-bit width. * gst/dvdlpcmdec/.cvsignore: * gst/dvdlpcmdec/Makefile.am: * gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_get_type), (gst_dvdlpcmdec_base_init), (gst_dvdlpcmdec_class_init), (gst_dvdlpcm_reset), (gst_dvdlpcmdec_init), (gst_dvdlpcmdec_link), (gst_dvdlpcmdec_chain), (gst_dvdlpcmdec_change_state), (plugin_init): * gst/dvdlpcmdec/gstdvdlpcmdec.h: New decoder for rearranging DVD LPCM into our audio/x-raw-int format. Needs support for the channels maps if someone can find a DVD LPCM track with > 2 channels. * gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_send_discont), (gst_dvd_demux_handle_discont), (gst_dvd_demux_get_audio_stream), (gst_dvd_demux_process_private): * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_discont), (gst_mpeg_demux_new_output_pad), (gst_mpeg_demux_init_stream), (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_handle_src_query): * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_reset), (gst_mpeg_parse_parse_packhead), (gst_mpeg_parse_loop), (gst_mpeg_parse_get_rate), (gst_mpeg_parse_convert_src), (gst_mpeg_parse_handle_src_query), (gst_mpeg_parse_handle_src_event): Use audio/x-dvd-lpcm for LPCM output. Add DTS output.
2005-02-08 11:08:15 +00:00
case 24:
{
/* Read 24-bits LE/BE into signed 64 host-endian */
if (this->sinkcaps.endianness == G_LITTLE_ENDIAN) {
cur = src[0] | (src[1] << 8) | (src[2] << 16);
} else {
cur = src[2] | (src[1] << 8) | (src[0] << 16);
}
/* Sign extend */
if ((this->sinkcaps.sign)
&& (cur & (1 << (this->sinkcaps.depth - 1))))
cur |= ((gint64) (-1)) ^ ((1 << this->sinkcaps.depth) - 1);
src -= 3;
}
break;
case 32:
if (this->sinkcaps.sign) {
CONVERT_TO (cur, src, gint32, this->sinkcaps.sign,
this->sinkcaps.endianness, GINT32_FROM_LE, GINT32_FROM_BE);
} else {
CONVERT_TO (cur, src, guint32, this->sinkcaps.sign,
this->sinkcaps.endianness, GUINT32_FROM_LE, GUINT32_FROM_BE);
}
break;
default:
g_assert_not_reached ();
}
cur = cur * ((gint64) 1 << (32 - this->sinkcaps.depth));
cur = CLAMP (cur, -((gint64) 1 << 32), (gint64) 0x7FFFFFFF);
write = cur;
memcpy (&dest[i], &write, 4);
}
} else {
/* float2int */
gfloat *in;
gint32 *out;
float temp;
/* should just give the same buffer, unless it's not writable -- float is
* already 32 bits */
ret = gst_audio_convert_get_buffer (buf, buf->size);
gst_buffer_set_caps (ret, GST_PAD_CAPS (base->srcpad));
in = (gfloat *) GST_BUFFER_DATA (buf);
out = (gint32 *) GST_BUFFER_DATA (ret);
for (i = buf->size / sizeof (float); i > 0; i--) {
temp = *in * 2147483647.0f + .5;
*out = (gint32) CLAMP ((gint64) temp, -2147483648ll, 2147483647ll);
out++;
in++;
}
}
gst_buffer_unref (buf);
return ret;
}
#define POPULATE(out, format, be_func, le_func) G_STMT_START { \
format val; \
format* p = (format *) out; \
int_value >>= (32 - this->srccaps.depth); \
if (this->srccaps.sign) { \
val = (format) int_value; \
} else { \
val = (format) int_value + (1 << (this->srccaps.depth - 1)); \
} \
switch (this->srccaps.endianness) { \
case G_LITTLE_ENDIAN: \
val = le_func (val); \
break; \
case G_BIG_ENDIAN: \
val = be_func (val); \
break; \
default: \
g_assert_not_reached (); \
}; \
*p = val; \
p ++; \
out = (guint8 *) p; \
}G_STMT_END
static GstBuffer *
gst_audio_convert_buffer_from_default_format (GstAudioConvert * this,
GstBuffer * buf)
{
GstBaseTransform *base;
GstBuffer *ret;
guint count, i;
gint32 *src;
base = GST_BASE_TRANSFORM (this);
GST_LOG_OBJECT (base, "converting buffer of size %d from default format",
GST_BUFFER_SIZE (buf));
if (this->srccaps.is_int && this->srccaps.width == 32
&& this->srccaps.depth == 32 && this->srccaps.endianness == G_BYTE_ORDER
&& this->srccaps.sign == TRUE)
return buf;
if (this->srccaps.is_int) {
guint8 *dest;
count = buf->size / 4; /* size is undefined after gst_audio_convert_get_buffer! */
ret =
gst_audio_convert_get_buffer (buf,
buf->size * this->srccaps.width / 32);
gst_buffer_set_caps (ret, GST_PAD_CAPS (base->srcpad));
dest = ret->data;
src = (gint32 *) buf->data;
for (i = 0; i < count; i++) {
gint32 int_value = *src;
src++;
switch (this->srccaps.width) {
case 8:
if (this->srccaps.sign) {
configure.ac: Add dvdlpcmdec Original commit message from CVS: * configure.ac: Add dvdlpcmdec * ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_reset), (free_all_buffers), (gst_mpeg2dec_alloc_buffer): Don't push buffers if the src pad isn't negotiated yet. * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_buffer_to_default_format), (gst_audio_convert_buffer_from_default_format): Add support for 24-bit width. * gst/dvdlpcmdec/.cvsignore: * gst/dvdlpcmdec/Makefile.am: * gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_get_type), (gst_dvdlpcmdec_base_init), (gst_dvdlpcmdec_class_init), (gst_dvdlpcm_reset), (gst_dvdlpcmdec_init), (gst_dvdlpcmdec_link), (gst_dvdlpcmdec_chain), (gst_dvdlpcmdec_change_state), (plugin_init): * gst/dvdlpcmdec/gstdvdlpcmdec.h: New decoder for rearranging DVD LPCM into our audio/x-raw-int format. Needs support for the channels maps if someone can find a DVD LPCM track with > 2 channels. * gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_send_discont), (gst_dvd_demux_handle_discont), (gst_dvd_demux_get_audio_stream), (gst_dvd_demux_process_private): * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_discont), (gst_mpeg_demux_new_output_pad), (gst_mpeg_demux_init_stream), (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_handle_src_query): * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_reset), (gst_mpeg_parse_parse_packhead), (gst_mpeg_parse_loop), (gst_mpeg_parse_get_rate), (gst_mpeg_parse_convert_src), (gst_mpeg_parse_handle_src_query), (gst_mpeg_parse_handle_src_event): Use audio/x-dvd-lpcm for LPCM output. Add DTS output.
2005-02-08 11:08:15 +00:00
POPULATE (dest, gint8, GINT8_IDENTITY, GINT8_IDENTITY);
} else {
configure.ac: Add dvdlpcmdec Original commit message from CVS: * configure.ac: Add dvdlpcmdec * ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_reset), (free_all_buffers), (gst_mpeg2dec_alloc_buffer): Don't push buffers if the src pad isn't negotiated yet. * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_buffer_to_default_format), (gst_audio_convert_buffer_from_default_format): Add support for 24-bit width. * gst/dvdlpcmdec/.cvsignore: * gst/dvdlpcmdec/Makefile.am: * gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_get_type), (gst_dvdlpcmdec_base_init), (gst_dvdlpcmdec_class_init), (gst_dvdlpcm_reset), (gst_dvdlpcmdec_init), (gst_dvdlpcmdec_link), (gst_dvdlpcmdec_chain), (gst_dvdlpcmdec_change_state), (plugin_init): * gst/dvdlpcmdec/gstdvdlpcmdec.h: New decoder for rearranging DVD LPCM into our audio/x-raw-int format. Needs support for the channels maps if someone can find a DVD LPCM track with > 2 channels. * gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_send_discont), (gst_dvd_demux_handle_discont), (gst_dvd_demux_get_audio_stream), (gst_dvd_demux_process_private): * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_discont), (gst_mpeg_demux_new_output_pad), (gst_mpeg_demux_init_stream), (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_handle_src_query): * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_reset), (gst_mpeg_parse_parse_packhead), (gst_mpeg_parse_loop), (gst_mpeg_parse_get_rate), (gst_mpeg_parse_convert_src), (gst_mpeg_parse_handle_src_query), (gst_mpeg_parse_handle_src_event): Use audio/x-dvd-lpcm for LPCM output. Add DTS output.
2005-02-08 11:08:15 +00:00
POPULATE (dest, guint8, GUINT8_IDENTITY, GUINT8_IDENTITY);
}
break;
case 16:
if (this->srccaps.sign) {
configure.ac: Add dvdlpcmdec Original commit message from CVS: * configure.ac: Add dvdlpcmdec * ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_reset), (free_all_buffers), (gst_mpeg2dec_alloc_buffer): Don't push buffers if the src pad isn't negotiated yet. * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_buffer_to_default_format), (gst_audio_convert_buffer_from_default_format): Add support for 24-bit width. * gst/dvdlpcmdec/.cvsignore: * gst/dvdlpcmdec/Makefile.am: * gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_get_type), (gst_dvdlpcmdec_base_init), (gst_dvdlpcmdec_class_init), (gst_dvdlpcm_reset), (gst_dvdlpcmdec_init), (gst_dvdlpcmdec_link), (gst_dvdlpcmdec_chain), (gst_dvdlpcmdec_change_state), (plugin_init): * gst/dvdlpcmdec/gstdvdlpcmdec.h: New decoder for rearranging DVD LPCM into our audio/x-raw-int format. Needs support for the channels maps if someone can find a DVD LPCM track with > 2 channels. * gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_send_discont), (gst_dvd_demux_handle_discont), (gst_dvd_demux_get_audio_stream), (gst_dvd_demux_process_private): * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_discont), (gst_mpeg_demux_new_output_pad), (gst_mpeg_demux_init_stream), (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_handle_src_query): * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_reset), (gst_mpeg_parse_parse_packhead), (gst_mpeg_parse_loop), (gst_mpeg_parse_get_rate), (gst_mpeg_parse_convert_src), (gst_mpeg_parse_handle_src_query), (gst_mpeg_parse_handle_src_event): Use audio/x-dvd-lpcm for LPCM output. Add DTS output.
2005-02-08 11:08:15 +00:00
POPULATE (dest, gint16, GINT16_TO_BE, GINT16_TO_LE);
} else {
POPULATE (dest, guint16, GUINT16_TO_BE, GUINT16_TO_LE);
}
break;
case 24:
{
guint8 tmp[4];
guint8 *tmpp = tmp;
/* Write out big endian array */
if (this->srccaps.sign) {
POPULATE (tmpp, gint32, GINT32_TO_BE, GINT32_TO_BE);
} else {
configure.ac: Add dvdlpcmdec Original commit message from CVS: * configure.ac: Add dvdlpcmdec * ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_reset), (free_all_buffers), (gst_mpeg2dec_alloc_buffer): Don't push buffers if the src pad isn't negotiated yet. * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_buffer_to_default_format), (gst_audio_convert_buffer_from_default_format): Add support for 24-bit width. * gst/dvdlpcmdec/.cvsignore: * gst/dvdlpcmdec/Makefile.am: * gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_get_type), (gst_dvdlpcmdec_base_init), (gst_dvdlpcmdec_class_init), (gst_dvdlpcm_reset), (gst_dvdlpcmdec_init), (gst_dvdlpcmdec_link), (gst_dvdlpcmdec_chain), (gst_dvdlpcmdec_change_state), (plugin_init): * gst/dvdlpcmdec/gstdvdlpcmdec.h: New decoder for rearranging DVD LPCM into our audio/x-raw-int format. Needs support for the channels maps if someone can find a DVD LPCM track with > 2 channels. * gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_send_discont), (gst_dvd_demux_handle_discont), (gst_dvd_demux_get_audio_stream), (gst_dvd_demux_process_private): * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_discont), (gst_mpeg_demux_new_output_pad), (gst_mpeg_demux_init_stream), (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_handle_src_query): * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_reset), (gst_mpeg_parse_parse_packhead), (gst_mpeg_parse_loop), (gst_mpeg_parse_get_rate), (gst_mpeg_parse_convert_src), (gst_mpeg_parse_handle_src_query), (gst_mpeg_parse_handle_src_event): Use audio/x-dvd-lpcm for LPCM output. Add DTS output.
2005-02-08 11:08:15 +00:00
POPULATE (tmpp, guint32, GUINT32_TO_BE, GUINT32_TO_BE);
}
configure.ac: Add dvdlpcmdec Original commit message from CVS: * configure.ac: Add dvdlpcmdec * ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_reset), (free_all_buffers), (gst_mpeg2dec_alloc_buffer): Don't push buffers if the src pad isn't negotiated yet. * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_buffer_to_default_format), (gst_audio_convert_buffer_from_default_format): Add support for 24-bit width. * gst/dvdlpcmdec/.cvsignore: * gst/dvdlpcmdec/Makefile.am: * gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_get_type), (gst_dvdlpcmdec_base_init), (gst_dvdlpcmdec_class_init), (gst_dvdlpcm_reset), (gst_dvdlpcmdec_init), (gst_dvdlpcmdec_link), (gst_dvdlpcmdec_chain), (gst_dvdlpcmdec_change_state), (plugin_init): * gst/dvdlpcmdec/gstdvdlpcmdec.h: New decoder for rearranging DVD LPCM into our audio/x-raw-int format. Needs support for the channels maps if someone can find a DVD LPCM track with > 2 channels. * gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_send_discont), (gst_dvd_demux_handle_discont), (gst_dvd_demux_get_audio_stream), (gst_dvd_demux_process_private): * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_discont), (gst_mpeg_demux_new_output_pad), (gst_mpeg_demux_init_stream), (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_handle_src_query): * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_reset), (gst_mpeg_parse_parse_packhead), (gst_mpeg_parse_loop), (gst_mpeg_parse_get_rate), (gst_mpeg_parse_convert_src), (gst_mpeg_parse_handle_src_query), (gst_mpeg_parse_handle_src_event): Use audio/x-dvd-lpcm for LPCM output. Add DTS output.
2005-02-08 11:08:15 +00:00
if (this->srccaps.endianness == G_LITTLE_ENDIAN) {
dest[2] = tmp[1];
dest[1] = tmp[2];
dest[0] = tmp[3];
} else {
memcpy (dest, tmp + 1, 3);
}
dest += 3;
}
break;
case 32:
if (this->srccaps.sign) {
configure.ac: Add dvdlpcmdec Original commit message from CVS: * configure.ac: Add dvdlpcmdec * ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_reset), (free_all_buffers), (gst_mpeg2dec_alloc_buffer): Don't push buffers if the src pad isn't negotiated yet. * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_buffer_to_default_format), (gst_audio_convert_buffer_from_default_format): Add support for 24-bit width. * gst/dvdlpcmdec/.cvsignore: * gst/dvdlpcmdec/Makefile.am: * gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_get_type), (gst_dvdlpcmdec_base_init), (gst_dvdlpcmdec_class_init), (gst_dvdlpcm_reset), (gst_dvdlpcmdec_init), (gst_dvdlpcmdec_link), (gst_dvdlpcmdec_chain), (gst_dvdlpcmdec_change_state), (plugin_init): * gst/dvdlpcmdec/gstdvdlpcmdec.h: New decoder for rearranging DVD LPCM into our audio/x-raw-int format. Needs support for the channels maps if someone can find a DVD LPCM track with > 2 channels. * gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_send_discont), (gst_dvd_demux_handle_discont), (gst_dvd_demux_get_audio_stream), (gst_dvd_demux_process_private): * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_discont), (gst_mpeg_demux_new_output_pad), (gst_mpeg_demux_init_stream), (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_handle_src_query): * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_reset), (gst_mpeg_parse_parse_packhead), (gst_mpeg_parse_loop), (gst_mpeg_parse_get_rate), (gst_mpeg_parse_convert_src), (gst_mpeg_parse_handle_src_query), (gst_mpeg_parse_handle_src_event): Use audio/x-dvd-lpcm for LPCM output. Add DTS output.
2005-02-08 11:08:15 +00:00
POPULATE (dest, gint32, GINT32_TO_BE, GINT32_TO_LE);
} else {
configure.ac: Add dvdlpcmdec Original commit message from CVS: * configure.ac: Add dvdlpcmdec * ext/mpeg2dec/gstmpeg2dec.c: (gst_mpeg2dec_reset), (free_all_buffers), (gst_mpeg2dec_alloc_buffer): Don't push buffers if the src pad isn't negotiated yet. * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_buffer_to_default_format), (gst_audio_convert_buffer_from_default_format): Add support for 24-bit width. * gst/dvdlpcmdec/.cvsignore: * gst/dvdlpcmdec/Makefile.am: * gst/dvdlpcmdec/gstdvdlpcmdec.c: (gst_dvdlpcmdec_get_type), (gst_dvdlpcmdec_base_init), (gst_dvdlpcmdec_class_init), (gst_dvdlpcm_reset), (gst_dvdlpcmdec_init), (gst_dvdlpcmdec_link), (gst_dvdlpcmdec_chain), (gst_dvdlpcmdec_change_state), (plugin_init): * gst/dvdlpcmdec/gstdvdlpcmdec.h: New decoder for rearranging DVD LPCM into our audio/x-raw-int format. Needs support for the channels maps if someone can find a DVD LPCM track with > 2 channels. * gst/mpegstream/gstdvddemux.c: (gst_dvd_demux_handle_dvd_event), (gst_dvd_demux_send_discont), (gst_dvd_demux_handle_discont), (gst_dvd_demux_get_audio_stream), (gst_dvd_demux_process_private): * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_send_discont), (gst_mpeg_demux_new_output_pad), (gst_mpeg_demux_init_stream), (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_handle_src_query): * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_reset), (gst_mpeg_parse_parse_packhead), (gst_mpeg_parse_loop), (gst_mpeg_parse_get_rate), (gst_mpeg_parse_convert_src), (gst_mpeg_parse_handle_src_query), (gst_mpeg_parse_handle_src_event): Use audio/x-dvd-lpcm for LPCM output. Add DTS output.
2005-02-08 11:08:15 +00:00
POPULATE (dest, guint32, GUINT32_TO_BE, GUINT32_TO_LE);
}
break;
default:
g_assert_not_reached ();
}
}
} else {
gfloat *dest;
count = buf->size / 4; /* size is undefined after gst_audio_convert_get_buffer! */
ret =
gst_audio_convert_get_buffer (buf,
buf->size * this->srccaps.width / 32);
gst_buffer_set_caps (ret, GST_PAD_CAPS (base->srcpad));
dest = (gfloat *) ret->data;
src = (gint32 *) buf->data;
for (i = 0; i < count; i++) {
*dest = INT2FLOAT (*src);
dest++;
src++;
}
}
gst_buffer_unref (buf);
return ret;
}
static GstBuffer *
gst_audio_convert_channels (GstAudioConvert * this, GstBuffer * buf)
{
GstBaseTransform *base = GST_BASE_TRANSFORM (this);
GstBuffer *ret;
gint units; /* one unit is one sample of audio for each channel, combined */
2004-11-25 20:36:29 +00:00
g_assert (this->matrix != NULL);
GST_LOG_OBJECT (base, "converting buffer of size %d for different channels",
GST_BUFFER_SIZE (buf));
/* check for passthrough */
if (gst_audio_convert_passthrough (this))
return buf;
/* convert */
GST_LOG_OBJECT (base, "%d sinkpad channels, %d srcpad channels",
this->sinkcaps.channels, this->srccaps.channels);
units = GST_BUFFER_SIZE (buf) / 4 / this->sinkcaps.channels;
ret = gst_audio_convert_get_buffer (buf, units * 4 * this->srccaps.channels);
gst_buffer_set_caps (ret, GST_PAD_CAPS (base->srcpad));
gst_audio_convert_mix (this, (gint32 *) GST_BUFFER_DATA (buf),
(gint32 *) GST_BUFFER_DATA (ret), units);
gst_buffer_unref (buf);
return ret;
}