From 086b25d40a8fc3606d70c32af7f6af178e2d804d Mon Sep 17 00:00:00 2001 From: Christian Schaller Date: Fri, 6 May 2005 11:41:28 +0000 Subject: remove gst-libs from gst-plugins module as it is in gst-plugins-base now Original commit message from CVS: remove gst-libs from gst-plugins module as it is in gst-plugins-base now --- gst-libs/gst/audio/audio.c | 280 --------------------------------------------- 1 file changed, 280 deletions(-) delete mode 100644 gst-libs/gst/audio/audio.c (limited to 'gst-libs/gst/audio/audio.c') diff --git a/gst-libs/gst/audio/audio.c b/gst-libs/gst/audio/audio.c deleted file mode 100644 index b6a1edb5..00000000 --- a/gst-libs/gst/audio/audio.c +++ /dev/null @@ -1,280 +0,0 @@ -/* GStreamer - * Copyright (C) <1999> Erik Walthinsen - * - * 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 "audio.h" -#include "multichannel-enumtypes.h" - -#include - -int -gst_audio_frame_byte_size (GstPad * pad) -{ -/* calculate byte size of an audio frame - * this should be moved closer to the gstreamer core - * and be implemented for every mime type IMO - * returns -1 if there's an error (to avoid division by zero), - * or the byte size if everything's ok - */ - - int width = 0; - int channels = 0; - const GstCaps *caps = NULL; - GstStructure *structure; - - /* get caps of pad */ - caps = GST_PAD_CAPS (pad); - - if (caps == NULL) { - /* ERROR: could not get caps of pad */ - g_warning ("gstaudio: could not get caps of pad %s:%s\n", - GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad)); - return 0; - } - - structure = gst_caps_get_structure (caps, 0); - - gst_structure_get_int (structure, "width", &width); - gst_structure_get_int (structure, "channels", &channels); - return (width / 8) * channels; -} - -long -gst_audio_frame_length (GstPad * pad, GstBuffer * buf) -/* calculate length of buffer in frames - * this should be moved closer to the gstreamer core - * and be implemented for every mime type IMO - * returns 0 if there's an error, or the number of frames if everything's ok - */ -{ - int frame_byte_size = 0; - - frame_byte_size = gst_audio_frame_byte_size (pad); - if (frame_byte_size == 0) - /* error */ - return 0; - /* FIXME: this function assumes the buffer size to be a whole multiple - * of the frame byte size - */ - return GST_BUFFER_SIZE (buf) / frame_byte_size; -} - -long -gst_audio_frame_rate (GstPad * pad) -/* - * calculate frame rate (based on caps of pad) - * returns 0 if failed, rate if success - */ -{ - const GstCaps *caps = NULL; - gint rate; - GstStructure *structure; - - /* get caps of pad */ - caps = GST_PAD_CAPS (pad); - - if (caps == NULL) { - /* ERROR: could not get caps of pad */ - g_warning ("gstaudio: could not get caps of pad %s:%s\n", - GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad)); - return 0; - } else { - structure = gst_caps_get_structure (caps, 0); - gst_structure_get_int (structure, "rate", &rate); - return rate; - } -} - -double -gst_audio_length (GstPad * pad, GstBuffer * buf) -{ -/* calculate length in seconds - * of audio buffer buf - * based on capabilities of pad - */ - - long bytes = 0; - int width = 0; - int channels = 0; - int rate = 0; - - double length; - - const GstCaps *caps = NULL; - GstStructure *structure; - - g_assert (GST_IS_BUFFER (buf)); - /* get caps of pad */ - caps = GST_PAD_CAPS (pad); - if (caps == NULL) { - /* ERROR: could not get caps of pad */ - g_warning ("gstaudio: could not get caps of pad %s:%s\n", - GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad)); - length = 0.0; - } else { - structure = gst_caps_get_structure (caps, 0); - bytes = GST_BUFFER_SIZE (buf); - gst_structure_get_int (structure, "width", &width); - gst_structure_get_int (structure, "channels", &channels); - gst_structure_get_int (structure, "rate", &rate); - - g_assert (bytes != 0); - g_assert (width != 0); - g_assert (channels != 0); - g_assert (rate != 0); - length = (bytes * 8.0) / (double) (rate * channels * width); - } - /* g_print ("DEBUG: audio: returning length of %f\n", length); */ - return length; -} - -long -gst_audio_highest_sample_value (GstPad * pad) -/* calculate highest possible sample value - * based on capabilities of pad - */ -{ - gboolean is_signed = FALSE; - gint width = 0; - const GstCaps *caps = NULL; - GstStructure *structure; - - caps = GST_PAD_CAPS (pad); - if (caps == NULL) { - g_warning ("gstaudio: could not get caps of pad %s:%s\n", - GST_ELEMENT_NAME (gst_pad_get_parent (pad)), GST_PAD_NAME (pad)); - } - - structure = gst_caps_get_structure (caps, 0); - gst_structure_get_int (structure, "width", &width); - gst_structure_get_boolean (structure, "signed", &is_signed); - - if (is_signed) - --width; - /* example : 16 bit, signed : samples between -32768 and 32767 */ - return ((long) (1 << width)); -} - -gboolean -gst_audio_is_buffer_framed (GstPad * pad, GstBuffer * buf) -/* check if the buffer size is a whole multiple of the frame size */ -{ - if (GST_BUFFER_SIZE (buf) % gst_audio_frame_byte_size (pad) == 0) - return TRUE; - else - return FALSE; -} - -/* _getcaps helper functions - * sets structure fields to default for audio type - * flag determines which structure fields to set to default - * keep these functions in sync with the templates in audio.h - */ - -/* private helper function - * sets a list on the structure - * pass in structure, fieldname for the list, type of the list values, - * number of list values, and each of the values, terminating with NULL - */ -static void -_gst_audio_structure_set_list (GstStructure * structure, - const gchar * fieldname, GType type, int number, ...) -{ - va_list varargs; - GValue value = { 0 }; - GArray *array; - int j; - - g_return_if_fail (structure != NULL); - - g_value_init (&value, GST_TYPE_LIST); - array = g_value_peek_pointer (&value); - - va_start (varargs, number); - - for (j = 0; j < number; ++j) { - int i; - gboolean b; - - GValue list_value = { 0 }; - - switch (type) { - case G_TYPE_INT: - i = va_arg (varargs, int); - - g_value_init (&list_value, G_TYPE_INT); - g_value_set_int (&list_value, i); - break; - case G_TYPE_BOOLEAN: - b = va_arg (varargs, gboolean); - g_value_init (&list_value, G_TYPE_BOOLEAN); - g_value_set_boolean (&list_value, b); - break; - default: - g_warning - ("_gst_audio_structure_set_list: LIST of given type not implemented."); - } - g_array_append_val (array, list_value); - - } - gst_structure_set_value (structure, fieldname, &value); - va_end (varargs); -} - -void -gst_audio_structure_set_int (GstStructure * structure, GstAudioFieldFlag flag) -{ - if (flag & GST_AUDIO_FIELD_RATE) - gst_structure_set (structure, "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT, - NULL); - if (flag & GST_AUDIO_FIELD_CHANNELS) - gst_structure_set (structure, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, - NULL); - if (flag & GST_AUDIO_FIELD_ENDIANNESS) - _gst_audio_structure_set_list (structure, "endianness", G_TYPE_INT, 2, - G_LITTLE_ENDIAN, G_BIG_ENDIAN, NULL); - if (flag & GST_AUDIO_FIELD_WIDTH) - _gst_audio_structure_set_list (structure, "width", G_TYPE_INT, 3, 8, 16, 32, - NULL); - if (flag & GST_AUDIO_FIELD_DEPTH) - gst_structure_set (structure, "depth", GST_TYPE_INT_RANGE, 1, 32, NULL); - if (flag & GST_AUDIO_FIELD_SIGNED) - _gst_audio_structure_set_list (structure, "signed", G_TYPE_BOOLEAN, 2, TRUE, - FALSE, NULL); - if (flag & GST_AUDIO_FIELD_BUFFER_FRAMES) - gst_structure_set (structure, "buffer-frames", GST_TYPE_INT_RANGE, 1, - G_MAXINT, NULL); -} - -static gboolean -plugin_init (GstPlugin * plugin) -{ - gst_audio_channel_position_get_type (); - - return TRUE; -} - -GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "gstaudio", - "Support services for audio plugins", - plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN); 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