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gst-libs/gst/audio: Remove baseaudiodecoder

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Adds little beyond baseaudiocodec (seeking, bit of query), and what it adds
is mainly out-of-scope (e.g. decoder seeking, should be done by upstream
demuxer/parser) and/or based on non-prime example (mad).
This commit is contained in:
Mark Nauwelaerts 2011-03-01 13:58:31 +01:00 committed by Tim-Philipp Müller
parent 492ab47fd2
commit dfd7616f60
2 changed files with 0 additions and 501 deletions
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437
gst-libs/gst/audio/gstbaseaudiodecoder.c
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@ -1,437 +0,0 @@
/* GStreamer
* Copyright (C) 2009 Igalia S.L.
* Author: Iago Toral Quiroga <itoral@igalia.com>
*
* 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 "gstbaseaudiodecoder.h"
#include <gst/gstutils.h>
#include <string.h>
/*
* FIXME: Do we really need decoder/encoder classes?
* FIXME: is it interesting to provide sink_query and src_query functions?
*/
GST_DEBUG_CATEGORY_EXTERN (baseaudiocodec_debug);
#define GST_CAT_DEFAULT baseaudiocodec_debug
/* ----- Function prototypes ----- */
static void gst_base_audio_decoder_finalize (GObject * object);
static gboolean gst_base_audio_decoder_src_event (GstPad * pad,
GstEvent * event);
/* static gboolean gst_base_audio_decoder_sink_query (GstPad * pad, */
/* GstQuery * query); */
/* static gboolean gst_base_audio_decoder_sink_convert (GstPad * pad, */
/* GstFormat src_format, gint64 src_value, GstFormat * dest_format, */
/* gint64 * dest_value); */
static const GstQueryType *gst_base_audio_decoder_get_query_types (GstPad *
pad);
static gboolean gst_base_audio_decoder_src_query (GstPad * pad,
GstQuery * query);
static gboolean gst_base_audio_decoder_src_convert (GstPad * pad,
GstFormat src_format, gint64 src_value, GstFormat * dest_format,
gint64 * dest_value);
static gboolean gst_base_audio_decoder_reset (GstBaseAudioCodec * codec);
/* ----- GObject setup ----- */
GST_BOILERPLATE (GstBaseAudioDecoder, gst_base_audio_decoder,
GstBaseAudioCodec, GST_TYPE_BASE_AUDIO_CODEC);
static void
gst_base_audio_decoder_base_init (gpointer g_class)
{
}
static void
gst_base_audio_decoder_class_init (GstBaseAudioDecoderClass * klass)
{
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = gst_base_audio_decoder_finalize;
parent_class->reset = gst_base_audio_decoder_reset;
}
static void
gst_base_audio_decoder_init (GstBaseAudioDecoder * decoder,
GstBaseAudioDecoderClass * klass)
{
GstPad *pad;
GST_DEBUG ("gst_base_audio_decoder_init");
pad = GST_BASE_AUDIO_CODEC_SINK_PAD (decoder);
/* gst_pad_set_query_function (pad, gst_base_audio_decoder_sink_query); */
pad = GST_BASE_AUDIO_CODEC_SRC_PAD (decoder);
gst_pad_set_event_function (pad, gst_base_audio_decoder_src_event);
gst_pad_set_query_type_function (pad, gst_base_audio_decoder_get_query_types);
gst_pad_set_query_function (pad, gst_base_audio_decoder_src_query);
}
static void
gst_base_audio_decoder_finalize (GObject * object)
{
g_return_if_fail (GST_IS_BASE_AUDIO_DECODER (object));
GST_DEBUG_OBJECT (object, "gst_base_audio_decoder_finalize");
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/* ----- Private element implementation ----- */
static gboolean
gst_base_audio_decoder_src_convert (GstPad * pad, GstFormat src_format,
gint64 src_value, GstFormat * dest_format, gint64 * dest_value)
{
gboolean res = TRUE;
GstBaseAudioCodec *codec;
gint bytes_per_sample;
gint scale = 1;
guint byterate;
if (src_format == *dest_format || src_value == -1 || src_value == 0) {
*dest_value = src_value;
return TRUE;
}
codec = GST_BASE_AUDIO_CODEC (GST_PAD_PARENT (pad));
bytes_per_sample = codec->state.channels * codec->state.bytes_per_sample;
switch (src_format) {
case GST_FORMAT_BYTES:
switch (*dest_format) {
case GST_FORMAT_DEFAULT: /* Bytes -> Samples */
if (bytes_per_sample == 0)
return FALSE;
*dest_value = src_value / bytes_per_sample;
break;
case GST_FORMAT_TIME: /* Bytes -> Time */
byterate = bytes_per_sample * codec->state.rate;
if (byterate == 0)
return FALSE;
*dest_value =
gst_util_uint64_scale_int (src_value, GST_SECOND, byterate);
break;
default:
res = FALSE;
}
break;
case GST_FORMAT_DEFAULT:
switch (*dest_format) {
case GST_FORMAT_BYTES: /* Samples -> Bytes */
*dest_value = src_value * bytes_per_sample;
break;
case GST_FORMAT_TIME: /* Samples -> Time */
if (codec->state.rate == 0)
return FALSE;
*dest_value = gst_util_uint64_scale_int (src_value, GST_SECOND,
codec->state.rate);
break;
default:
res = FALSE;
}
break;
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_BYTES: /* Time -> Bytes */
scale = bytes_per_sample;
/* fallthrough */
case GST_FORMAT_DEFAULT: /* Time -> Samples */
*dest_value = gst_util_uint64_scale_int (src_value,
scale * codec->state.rate, GST_SECOND);
break;
default:
res = FALSE;
}
break;
default:
res = FALSE;
}
return res;
}
#ifndef GST_DISABLE_INDEX
static gboolean
gst_base_audio_decoder_index_seek (GstBaseAudioDecoder * decoder,
GstIndex * index, GstPad * pad, GstEvent * event)
{
GstIndexEntry *entry;
gdouble rate;
GstFormat format;
GstSeekFlags flags;
GstSeekType cur_type, stop_type;
gint64 cur, stop;
gint index_id;
GstBaseAudioCodec *codec;
codec = GST_BASE_AUDIO_CODEC (decoder);
gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
&stop_type, &stop);
gst_index_get_writer_id (index, GST_OBJECT (decoder), &index_id);
entry = gst_index_get_assoc_entry (index, index_id,
GST_INDEX_LOOKUP_BEFORE, GST_ASSOCIATION_FLAG_KEY_UNIT, format, cur);
if (entry && gst_pad_is_linked (GST_BASE_AUDIO_CODEC_SINK_PAD (codec))) {
const GstFormat *peer_formats, *try_formats;
/* since we know the exact byteoffset of the frame,
make sure to seek on bytes first */
const GstFormat try_all_formats[] = {
GST_FORMAT_BYTES,
GST_FORMAT_TIME,
0
};
try_formats = try_all_formats;
#if 0
/* FIXE ME */
peer_formats =
gst_pad_get_formats (GST_PAD_PEER (GST_BASE_AUDIO_CODEC_SINK_PAD
(codec)));
#else
peer_formats = try_all_formats;
#endif
while (gst_formats_contains (peer_formats, *try_formats)) {
gint64 value;
if (gst_index_entry_assoc_map (entry, *try_formats, &value)) {
GstEvent *seek_event;
GST_DEBUG_OBJECT (decoder,
"index %s %" G_GINT64_FORMAT
" -> %s %" G_GINT64_FORMAT,
gst_format_get_details (format)->nick,
cur, gst_format_get_details (*try_formats)->nick, value);
seek_event = gst_event_new_seek (rate, *try_formats, flags,
cur_type, value, stop_type, stop);
if (gst_pad_push_event (GST_BASE_AUDIO_CODEC_SINK_PAD (codec),
seek_event)) {
return TRUE;
}
}
try_formats++;
}
}
return FALSE;
}
#endif
static gboolean
gst_base_audio_decoder_normal_seek (GstBaseAudioDecoder * decoder,
GstPad * pad, GstEvent * event)
{
gdouble rate;
GstFormat format, conv;
GstSeekFlags flags;
GstSeekType cur_type, stop_type;
gint64 cur, stop;
gint64 time_cur, bytes_cur;
gint64 time_stop, bytes_stop;
gboolean res;
GstEvent *peer_event;
GstBaseAudioCodec *codec;
codec = GST_BASE_AUDIO_CODEC (decoder);
gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
&stop_type, &stop);
res = FALSE;
/* Try to seek in time */
conv = GST_FORMAT_TIME;
if (!gst_base_audio_decoder_src_convert (pad, format, cur, &conv, &time_cur))
goto convert_failed;
if (!gst_base_audio_decoder_src_convert (pad, format, stop, &conv,
&time_stop))
goto convert_failed;
GST_DEBUG ("seek to time %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT,
GST_TIME_ARGS (time_cur), GST_TIME_ARGS (time_stop));
peer_event = gst_event_new_seek (rate, GST_FORMAT_TIME, flags,
cur_type, time_cur, stop_type, time_stop);
res = gst_pad_push_event (GST_BASE_AUDIO_CODEC_SINK_PAD (codec), peer_event);
/* Try seek in bytes if seek in time failed */
if (!res) {
conv = GST_FORMAT_BYTES;
if (!gst_base_audio_decoder_src_convert (pad, GST_FORMAT_TIME, time_cur,
&conv, &bytes_cur))
goto convert_failed;
if (!gst_base_audio_decoder_src_convert (pad, GST_FORMAT_TIME, time_stop,
&conv, &bytes_stop))
goto convert_failed;
peer_event =
gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type, bytes_cur,
stop_type, bytes_stop);
res = gst_pad_push_event (GST_BASE_AUDIO_CODEC_SINK_PAD (codec),
peer_event);
}
return res;
/* ERRORS */
convert_failed:
{
GST_DEBUG_OBJECT (decoder, "failed to convert format %u", format);
return FALSE;
}
}
static gboolean
gst_base_audio_decoder_seek (GstBaseAudioDecoder * decoder,
GstPad * pad, GstEvent * event)
{
gboolean res;
#ifndef GST_DISABLE_INDEX
GstIndex *index = gst_element_get_index (GST_ELEMENT (decoder));
if (index) {
res = gst_base_audio_decoder_index_seek (decoder, index, pad, event);
gst_object_unref (index);
} else
#endif
res = gst_base_audio_decoder_normal_seek (decoder, pad, event);
return res;
}
static gboolean
gst_base_audio_decoder_src_event (GstPad * pad, GstEvent * event)
{
gboolean res;
GstBaseAudioDecoder *decoder;
GstBaseAudioCodec *codec;
decoder = GST_BASE_AUDIO_DECODER (GST_PAD_PARENT (pad));
codec = GST_BASE_AUDIO_CODEC (decoder);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
/* Try the demuxer first */
gst_event_ref (event);
res = gst_pad_push_event (GST_BASE_AUDIO_CODEC_SINK_PAD (codec), event);
if (!res) {
res = gst_base_audio_decoder_seek (decoder, pad, event);
}
gst_event_unref (event);
break;
default:
res = gst_pad_push_event (GST_BASE_AUDIO_CODEC_SINK_PAD (codec), event);
break;
}
return res;
}
static const GstQueryType *
gst_base_audio_decoder_get_query_types (GstPad * pad)
{
static const GstQueryType query_types[] = {
GST_QUERY_CONVERT,
0
};
return query_types;
}
static gboolean
gst_base_audio_decoder_src_query (GstPad * pad, GstQuery * query)
{
GstBaseAudioDecoder *enc;
gboolean res;
enc = GST_BASE_AUDIO_DECODER (gst_pad_get_parent (pad));
switch GST_QUERY_TYPE
(query) {
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
res =
gst_base_audio_decoder_src_convert (pad, src_fmt, src_val, &dest_fmt,
&dest_val);
if (!res)
goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default (pad, query);
}
gst_object_unref (enc);
return res;
error:
GST_DEBUG_OBJECT (enc, "query failed");
gst_object_unref (enc);
return res;
}
/* FIXME: implement (is this really necessary?) */
/* static gboolean */
/* gst_base_audio_decoder_sink_convert (GstPad * pad, GstFormat src_format, */
/* gint64 src_value, GstFormat * dest_format, gint64 * dest_value) */
/* { */
/* return TRUE; */
/* } */
/* FIXME: implement (is this really necessary?) */
/* static gboolean */
/* gst_base_audio_decoder_sink_query (GstPad * pad, GstQuery * query) */
/* { */
/* return TRUE; */
/* } */
static gboolean
gst_base_audio_decoder_reset (GstBaseAudioCodec * codec)
{
GST_DEBUG ("gst_base_audio_decoder_reset");
return TRUE;
}

64
gst-libs/gst/audio/gstbaseaudiodecoder.h
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@ -1,64 +0,0 @@
/* GStreamer
* Copyright (C) 2009 Igalia S.L.
* Author: Iago Toral Quiroga <itoral@igalia.com>
*
* 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.
*/
#ifndef _GST_BASE_AUDIO_DECODER_H_
#define _GST_BASE_AUDIO_DECODER_H_
#ifndef GST_USE_UNSTABLE_API
#warning "GstBaseAudioDecoder is unstable API and may change in future."
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
#endif
#include "gstbaseaudiocodec.h"
G_BEGIN_DECLS
#define GST_TYPE_BASE_AUDIO_DECODER \
(gst_base_audio_decoder_get_type())
#define GST_BASE_AUDIO_DECODER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_AUDIO_DECODER,GstBaseAudioDecoder))
#define GST_BASE_AUDIO_DECODER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_AUDIO_DECODER,GstBaseAudioDecoderClass))
#define GST_BASE_AUDIO_DECODER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_AUDIO_DECODER,GstBaseAudioDecoderClass))
#define GST_IS_BASE_AUDIO_DECODER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_AUDIO_DECODER))
#define GST_IS_BASE_AUDIO_DECODER_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_AUDIO_DECODER))
typedef struct _GstBaseAudioDecoder GstBaseAudioDecoder;
typedef struct _GstBaseAudioDecoderClass GstBaseAudioDecoderClass;
struct _GstBaseAudioDecoder
{
GstBaseAudioCodec base_audio_codec;
};
struct _GstBaseAudioDecoderClass
{
GstBaseAudioCodecClass base_audio_codec_class;
};
GType gst_base_audio_decoder_get_type (void);
G_END_DECLS
#endif