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-rw-r--r--kopete/protocols/msn/webcam/libmimic/mimic.c334
1 files changed, 0 insertions, 334 deletions
diff --git a/kopete/protocols/msn/webcam/libmimic/mimic.c b/kopete/protocols/msn/webcam/libmimic/mimic.c
deleted file mode 100644
index 61abf9e8..00000000
--- a/kopete/protocols/msn/webcam/libmimic/mimic.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/* Copyright (C) 2005 Ole André Vadla Ravnås <oleavr@gmail.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <string.h>
-#include "mimic-private.h"
-
-/**
- * Creates a new instance and returns a pointer to the new context
- * that can be used for either encoding or decoding by calling
- * #mimic_encoder_init or #mimic_decoder_init.
- *
- * #mimic_close is called to free any resources associated with
- * the context once done.
- *
- * @returns a new mimic context
- */
-MimCtx *mimic_open()
-{
- MimCtx *ctx;
-
- ctx = g_new0(MimCtx, 1);
-
- ctx->encoder_initialized = FALSE;
- ctx->decoder_initialized = FALSE;
-
- return ctx;
-}
-
-/**
- * Frees any resources associated with the given context.
- *
- * @param ctx the mimic context to free
- */
-void mimic_close(MimCtx *ctx)
-{
- if (ctx->encoder_initialized || ctx->decoder_initialized) {
- gint i;
-
- g_free(ctx->cur_frame_buf);
-
- for (i = 0; i < 16; i++)
- g_free(ctx->buf_ptrs[i]);
- }
-
- g_free(ctx);
-}
-
-/*
- * mimic_init
- *
- * Internal helper-function used to initialize
- * a given context.
- */
-static void mimic_init(MimCtx *ctx, gint width, gint height)
-{
- gint bufsize, i;
-
- /*
- * Dimensions-related.
- */
- ctx->frame_width = width;
- ctx->frame_height = height;
-
- ctx->y_stride = ctx->frame_width;
- ctx->y_row_count = ctx->frame_height;
- ctx->y_size = ctx->y_stride * ctx->y_row_count;
-
- ctx->crcb_stride = ctx->y_stride / 2;
- ctx->crcb_row_count = ctx->y_row_count / 2;
- ctx->crcb_size = ctx->crcb_stride * ctx->crcb_row_count;
-
- ctx->num_vblocks_y = ctx->frame_height / 8;
- ctx->num_hblocks_y = ctx->frame_width / 8;
-
- ctx->num_vblocks_cbcr = ctx->frame_height / 16;
- ctx->num_hblocks_cbcr = ctx->frame_width / 16;
-
- if (ctx->frame_height % 16 != 0)
- ctx->num_vblocks_cbcr++;
-
- /*
- * Initialize state.
- */
- ctx->frame_num = 0;
- ctx->ptr_index = 15;
- ctx->num_coeffs = 28;
-
- /*
- * Allocate memory for buffers.
- */
- ctx->cur_frame_buf = g_new(guchar, (320 * 240 * 3) / 2);
-
- bufsize = ctx->y_size + (ctx->crcb_size * 2);
- for (i = 0; i < 16; i++)
- ctx->buf_ptrs[i] = g_new(guchar, bufsize);
-
- /*
- * Initialize vlc lookup used by decoder.
- */
- _initialize_vlcdec_lookup(ctx->vlcdec_lookup);
-}
-
-/**
- * Initialize the mimic encoder and prepare for encoding by
- * initializing internal state and allocating resources as
- * needed.
- *
- * After initializing use #mimic_get_property to determine
- * the size of the output buffer needed for calls to
- * #mimic_encode_frame. Use #mimic_set_property to set
- * encoding quality.
- *
- * Note that once a given context has been initialized
- * for either encoding or decoding it is not possible
- * to initialize it again.
- *
- * @param ctx the mimic context to initialize
- * @param resolution a #MimicResEnum used to specify the resolution
- * @returns #TRUE on success
- */
-gboolean mimic_encoder_init(MimCtx *ctx, const MimicResEnum resolution)
-{
- gint width, height;
-
- /* Check if we've been initialized before. */
- if (ctx->encoder_initialized || ctx->decoder_initialized)
- return FALSE;
-
- /* Check resolution. */
- if (resolution == MIMIC_RES_LOW) {
- width = 160;
- height = 120;
- } else if (resolution == MIMIC_RES_HIGH) {
- width = 320;
- height = 240;
- } else {
- return FALSE;
- }
-
- /* Initialize! */
- mimic_init(ctx, width, height);
-
- /* Set a default quality setting. */
- ctx->quality = ENCODER_QUALITY_DEFAULT;
-
- ctx->encoder_initialized = TRUE;
-
- return TRUE;
-}
-
-/**
- * Initialize the mimic decoder. The frame passed in frame_buffer
- * is used to determine the resolution so that the internal state
- * can be prepared and resources allocated accordingly. Note that
- * the frame passed has to be a keyframe.
- *
- * After initializing use #mimic_get_property to determine required
- * buffer-size, resolution, quality, etc.
- *
- * Note that once a given context has been initialized
- * for either encoding or decoding it is not possible
- * to initialize it again.
- *
- * @param ctx the mimic context to initialize
- * @param frame_buffer buffer containing the first frame to decode
- * @returns #TRUE on success
- */
-gboolean mimic_decoder_init(MimCtx *ctx, const guchar *frame_buffer)
-{
- gint width, height;
- gboolean is_keyframe;
-
- /* Check if we've been initialized before and that
- * frame_buffer is not NULL. */
- if (ctx->encoder_initialized || ctx->decoder_initialized ||
- frame_buffer == NULL)
- {
- return FALSE;
- }
-
- /* Check resolution. */
- width = GUINT16_FROM_LE(*((guint16 *) (frame_buffer + 4)));
- height = GUINT16_FROM_LE(*((guint16 *) (frame_buffer + 6)));
-
- if (!(width == 160 && height == 120) && !(width == 320 && height == 240))
- return FALSE;
-
- /* Check that we're initialized with a keyframe. */
- is_keyframe = (GUINT32_FROM_LE(*((guint32 *) (frame_buffer + 12))) == 0);
-
- if (!is_keyframe)
- return FALSE;
-
- /* Get quality setting (in case we get queried for it before decoding). */
- ctx->quality = GUINT16_FROM_LE(*((guint16 *) (frame_buffer + 2)));
-
- /* Initialize! */
- mimic_init(ctx, width, height);
-
- ctx->decoder_initialized = TRUE;
-
- return TRUE;
-}
-
-/**
- * Get a property from a given mimic context. The context
- * has to be initialized.
- *
- * Currently the following properties are defined:
- * - "buffer_size"
- * - Required output buffer size
- * - "width"
- * - Frame width
- * - "height"
- * - Frame height
- * - "quality"
- * - Encoder: Encoding quality used
- * - Decoder: Decoding quality of the last known frame
- *
- * @param ctx the mimic context to retrieve the property from
- * @param name of the property to retrieve the current value of
- * @param data pointer to the data that will receive the retrieved value
- * @returns #TRUE on success
- */
-gboolean mimic_get_property(MimCtx *ctx, const gchar *name, gpointer data)
-{
- /* Either the encoder or the decoder has to be initialized. */
- if (!ctx->encoder_initialized && !ctx->decoder_initialized)
- return FALSE;
-
- if (ctx->encoder_initialized) {
-
- if (strcmp(name, "buffer_size") == 0) {
- *((gint *) data) = ENCODER_BUFFER_SIZE;
-
- return TRUE;
- }
-
- } else { /* decoder_initialized */
-
- if (strcmp(name, "buffer_size") == 0) {
- *((gint *) data) = ctx->frame_width * ctx->frame_height * 3;
-
- return TRUE;
- }
- }
-
- if (strcmp(name, "width") == 0) {
- *((gint *) data) = ctx->frame_width;
-
- return TRUE;
- } else if (strcmp(name, "height") == 0) {
- *((gint *) data) = ctx->frame_height;
-
- return TRUE;
- } else if (strcmp(name, "quality") == 0) {
- *((gint *) data) = ctx->quality;
-
- return TRUE;
- }
-
- return FALSE;
-}
-
-/**
- * Set a property in a given mimic context. The context
- * has to be initialized.
- *
- * Currently the following properties are defined:
- * - "quality"
- * - Encoding quality used by encoder.
- *
- * @param ctx the mimic context to set a property in
- * @param name of the property to set to a new value
- * @param data pointer to the data that contains the new value
- * @returns #TRUE on success
- */
-gboolean mimic_set_property(MimCtx *ctx, const gchar *name, gpointer data)
-{
- /* Either the encoder or the decoder has to be initialized. */
- if (!ctx->encoder_initialized && !ctx->decoder_initialized)
- return FALSE;
-
- if (ctx->encoder_initialized) {
-
- if (strcmp(name, "quality") == 0) {
- gint new_quality = *((gint *) data);
-
- if (new_quality < ENCODER_QUALITY_MIN ||
- new_quality > ENCODER_QUALITY_MAX)
- {
- return FALSE;
- }
-
- ctx->quality = new_quality;
-
- return TRUE;
- }
-
- } else { /* decoder_initialized */ }
-
- return FALSE;
-}
-
-/*
- * _clamp_value
- *
- * Internal helper-function used to clamp a given
- * value to the range [ 0, 255 ].
- */
-guchar _clamp_value(gint value)
-{
- if (value < 0)
- return 0;
- else if (value > 255)
- return 255;
- else
- return value;
-}
-
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