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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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504 lines
14 KiB
C
504 lines
14 KiB
C
/* GStreamer
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* Copyright (C) 2024 Intel Corporation
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* Author: He Junyan <junyan.he@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the0
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/* TODO: Add the support for the "differential mode(lossless mode)",
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"arithmetic mode" and "progressive mode". */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstjpegbitwriter.h"
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#include <gst/base/gstbytewriter.h>
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#define WRITE_BYTE_UNCHECK(bw, val) gst_byte_writer_put_uint8 (bw, val)
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#define WRITE_BYTE(bw, val) \
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if (!WRITE_BYTE_UNCHECK (bw, val)) { \
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have_space = FALSE; \
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goto error; \
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}
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/***************************** End of Utils ****************************/
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/**
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* gst_jpeg_bit_writer_frame_header:
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* @frame_hdr: the frame header of #GstJpegFrameHdr to write
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* @marker: the #GstJpegMarker id for this segment
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* @data: (out): the bit stream generated by this frame header
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* @size: (inout): the size in bytes of the input and output
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*
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* Generating the according JPEG bit stream by providing the frame header.
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*
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* Returns: a #GstJpegBitWriterResult
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*
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* Since: 1.26
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**/
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GstJpegBitWriterResult
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gst_jpeg_bit_writer_frame_header (const GstJpegFrameHdr * frame_hdr,
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GstJpegMarker marker, guint8 * data, guint * size)
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{
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gboolean have_space = TRUE;
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GstByteWriter bw;
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guint total_size, value;
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guint i;
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g_return_val_if_fail (frame_hdr != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (marker >= GST_JPEG_MARKER_SOF_MIN
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&& marker <= GST_JPEG_MARKER_SOF_MAX, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (data != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (size != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (*size > 0, GST_JPEG_BIT_WRITER_ERROR);
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gst_byte_writer_init_with_data (&bw, data, *size, FALSE);
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/* marker */
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WRITE_BYTE (&bw, 0xff);
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WRITE_BYTE (&bw, marker);
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total_size = 2;
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if (frame_hdr->num_components > GST_JPEG_MAX_SCAN_COMPONENTS)
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goto error;
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total_size += (1 + 2 + 2 + 1);
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total_size += frame_hdr->num_components * (1 + 1 + 1);
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/* S1 and S2 */
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WRITE_BYTE (&bw, (total_size >> 8) & 0xff);
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WRITE_BYTE (&bw, total_size & 0xff);
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WRITE_BYTE (&bw, frame_hdr->sample_precision);
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if (!gst_byte_writer_put_uint16_be (&bw, frame_hdr->height)) {
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have_space = FALSE;
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goto error;
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}
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if (!gst_byte_writer_put_uint16_be (&bw, frame_hdr->width)) {
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have_space = FALSE;
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goto error;
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}
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WRITE_BYTE (&bw, frame_hdr->num_components);
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for (i = 0; i < frame_hdr->num_components; i++) {
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WRITE_BYTE (&bw, frame_hdr->components[i].identifier);
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if (frame_hdr->components[i].horizontal_factor > 4
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|| frame_hdr->components[i].vertical_factor > 4
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|| frame_hdr->components[i].quant_table_selector >= 4)
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goto error;
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value = (frame_hdr->components[i].horizontal_factor & 0x0F) << 4 |
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(frame_hdr->components[i].vertical_factor & 0x0F);
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WRITE_BYTE (&bw, value);
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WRITE_BYTE (&bw, frame_hdr->components[i].quant_table_selector);
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}
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*size = gst_byte_writer_get_size (&bw);
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gst_byte_writer_reset (&bw);
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return GST_JPEG_BIT_WRITER_OK;
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error:
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gst_byte_writer_reset (&bw);
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*size = 0;
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return have_space ? GST_JPEG_BIT_WRITER_INVALID_DATA :
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GST_JPEG_BIT_WRITER_NO_MORE_SPACE;
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}
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/**
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* gst_jpeg_bit_writer_scan_header:
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* @frame_hdr: the scan header of #GstJpegScanHdr to write
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* @data: (out): the bit stream generated by this scan header
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* @size: (inout): the size in bytes of the input and output
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*
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* Generating the according JPEG bit stream by providing the scan header.
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*
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* Returns: a #GstJpegBitWriterResult
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*
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* Since: 1.26
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**/
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GstJpegBitWriterResult
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gst_jpeg_bit_writer_scan_header (const GstJpegScanHdr * scan_hdr,
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guint8 * data, guint * size)
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{
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gboolean have_space = TRUE;
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GstByteWriter bw;
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guint total_size, value;
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guint i;
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g_return_val_if_fail (scan_hdr != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (data != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (size != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (*size > 0, GST_JPEG_BIT_WRITER_ERROR);
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gst_byte_writer_init_with_data (&bw, data, *size, FALSE);
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/* marker */
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WRITE_BYTE (&bw, 0xff);
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WRITE_BYTE (&bw, GST_JPEG_MARKER_SOS);
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total_size = 2;
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if (scan_hdr->num_components > GST_JPEG_MAX_SCAN_COMPONENTS)
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goto error;
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total_size += 1;
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total_size += scan_hdr->num_components * (1 + 1);
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total_size += 3;
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/* S1 and S2 */
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WRITE_BYTE (&bw, (total_size >> 8) & 0xff);
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WRITE_BYTE (&bw, total_size & 0xff);
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WRITE_BYTE (&bw, scan_hdr->num_components);
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for (i = 0; i < scan_hdr->num_components; i++) {
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WRITE_BYTE (&bw, scan_hdr->components[i].component_selector);
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if (scan_hdr->components[i].dc_selector >= 4
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|| scan_hdr->components[i].ac_selector >= 4)
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goto error;
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value = (scan_hdr->components[i].dc_selector & 0x0F) << 4 |
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(scan_hdr->components[i].ac_selector & 0x0F);
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WRITE_BYTE (&bw, value);
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}
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/* Not use: Ss, Se, Ah, Al */
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WRITE_BYTE (&bw, 0);
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WRITE_BYTE (&bw, 0);
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WRITE_BYTE (&bw, 0);
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*size = gst_byte_writer_get_size (&bw);
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gst_byte_writer_reset (&bw);
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return GST_JPEG_BIT_WRITER_OK;
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error:
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gst_byte_writer_reset (&bw);
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*size = 0;
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return have_space ? GST_JPEG_BIT_WRITER_INVALID_DATA :
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GST_JPEG_BIT_WRITER_NO_MORE_SPACE;
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}
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/**
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* gst_jpeg_bit_writer_huffman_table:
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* @huff_tables: the huffman tables of #GstJpegHuffmanTables to write
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* @data: (out): the bit stream generated by the huffman tables
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* @size: (inout): the size in bytes of the input and output
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*
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* Generating the according JPEG bit stream by providing the huffman tables.
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*
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* Returns: a #GstJpegBitWriterResult
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*
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* Since: 1.26
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**/
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GstJpegBitWriterResult
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gst_jpeg_bit_writer_huffman_table (const GstJpegHuffmanTables * huff_tables,
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guint8 * data, guint * size)
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{
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gboolean have_space = TRUE;
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GstByteWriter bw;
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const GstJpegHuffmanTable *huf_table;
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guint32 value_count;
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guint total_size, value;
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guint i, j, k;
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g_return_val_if_fail (huff_tables != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (data != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (size != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (*size > 0, GST_JPEG_BIT_WRITER_ERROR);
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gst_byte_writer_init_with_data (&bw, data, *size, FALSE);
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/* marker */
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WRITE_BYTE (&bw, 0xff);
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WRITE_BYTE (&bw, GST_JPEG_MARKER_DHT);
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total_size = 2;
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for (i = 0; i < GST_JPEG_MAX_SCAN_COMPONENTS; i++) {
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for (j = 0; j < 2; j++) { /* DC or AC */
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huf_table =
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(j == 0 ? &huff_tables->dc_tables[i] : &huff_tables->ac_tables[i]);
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if (!huf_table->valid)
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continue;
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total_size += (1 + 16);
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value_count = 0;
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for (k = 0; k < 16; k++)
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value_count += huf_table->huf_bits[k];
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total_size += value_count;
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}
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}
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/* S1 and S2 */
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WRITE_BYTE (&bw, (total_size >> 8) & 0xff);
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WRITE_BYTE (&bw, total_size & 0xff);
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for (i = 0; i < GST_JPEG_MAX_SCAN_COMPONENTS; i++) {
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for (j = 0; j < 2; j++) { /* DC or AC */
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huf_table =
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(j == 0 ? &huff_tables->dc_tables[i] : &huff_tables->ac_tables[i]);
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if (!huf_table->valid)
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continue;
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/* table class and index */
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value = (j & 0x0F) << 4 | (i & 0x0F);
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WRITE_BYTE (&bw, value);
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if (!gst_byte_writer_put_data (&bw, huf_table->huf_bits, 16)) {
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have_space = FALSE;
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goto error;
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}
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value_count = 0;
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for (k = 0; k < 16; k++)
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value_count += huf_table->huf_bits[k];
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if (!gst_byte_writer_put_data (&bw, huf_table->huf_values, value_count)) {
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have_space = FALSE;
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goto error;
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}
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}
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}
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*size = gst_byte_writer_get_size (&bw);
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gst_byte_writer_reset (&bw);
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return GST_JPEG_BIT_WRITER_OK;
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error:
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gst_byte_writer_reset (&bw);
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*size = 0;
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return have_space ? GST_JPEG_BIT_WRITER_INVALID_DATA :
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GST_JPEG_BIT_WRITER_NO_MORE_SPACE;
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}
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/**
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* gst_jpeg_bit_writer_quantization_table:
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* @quant_tables: the quantization tables of #GstJpegQuantTables to write
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* @data: (out): the bit stream generated by the quantization tables
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* @size: (inout): the size in bytes of the input and output
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*
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* Generating the according JPEG bit stream by providing the quantization tables.
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*
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* Returns: a #GstJpegBitWriterResult
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*
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* Since: 1.26
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**/
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GstJpegBitWriterResult
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gst_jpeg_bit_writer_quantization_table (const GstJpegQuantTables * quant_tables,
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guint8 * data, guint * size)
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{
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gboolean have_space = TRUE;
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GstByteWriter bw;
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const GstJpegQuantTable *quant_table;
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guint total_size, value;
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guint i, j;
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g_return_val_if_fail (quant_tables != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (data != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (size != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (*size > 0, GST_JPEG_BIT_WRITER_ERROR);
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gst_byte_writer_init_with_data (&bw, data, *size, FALSE);
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/* marker */
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WRITE_BYTE (&bw, 0xff);
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WRITE_BYTE (&bw, GST_JPEG_MARKER_DQT);
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total_size = 2;
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for (i = 0; i < GST_JPEG_MAX_SCAN_COMPONENTS; i++) {
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guint32 element_size;
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quant_table = &quant_tables->quant_tables[i];
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if (!quant_table->valid)
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continue;
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element_size = (quant_table->quant_precision == 0) ? 1 : 2;
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total_size += (1 + GST_JPEG_MAX_QUANT_ELEMENTS * element_size);
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}
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/* S1 and S2 */
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WRITE_BYTE (&bw, (total_size >> 8) & 0xff);
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WRITE_BYTE (&bw, total_size & 0xff);
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for (i = 0; i < GST_JPEG_MAX_SCAN_COMPONENTS; i++) {
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quant_table = &quant_tables->quant_tables[i];
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if (!quant_table->valid)
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continue;
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value = ((quant_table->quant_precision & 0x0F) << 4) | (i & 0x0F);
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WRITE_BYTE (&bw, value);
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for (j = 0; j < GST_JPEG_MAX_QUANT_ELEMENTS; j++) {
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if (!quant_table->quant_precision) { /* 8-bit values */
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guint8 val = quant_table->quant_table[j];
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WRITE_BYTE (&bw, val);
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} else { /* 16-bit values */
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if (!gst_byte_writer_put_uint16_be (&bw, quant_table->quant_table[j])) {
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have_space = FALSE;
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goto error;
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}
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}
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}
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}
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*size = gst_byte_writer_get_size (&bw);
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gst_byte_writer_reset (&bw);
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return GST_JPEG_BIT_WRITER_OK;
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error:
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gst_byte_writer_reset (&bw);
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*size = 0;
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return have_space ? GST_JPEG_BIT_WRITER_INVALID_DATA :
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GST_JPEG_BIT_WRITER_NO_MORE_SPACE;
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}
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/**
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* gst_jpeg_bit_writer_restart_interval:
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* @interval: the interval value for restart
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* @data: (out): the bit stream generated by the interval value
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* @size: (inout): the size in bytes of the input and output
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*
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* Generating the according JPEG bit stream by providing the interval value.
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*
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* Returns: a #GstJpegBitWriterResult
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*
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* Since: 1.26
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**/
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GstJpegBitWriterResult
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gst_jpeg_bit_writer_restart_interval (guint16 interval, guint8 * data,
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guint * size)
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{
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gboolean have_space = TRUE;
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GstByteWriter bw;
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guint total_size;
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g_return_val_if_fail (data != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (size != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (*size > 0, GST_JPEG_BIT_WRITER_ERROR);
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gst_byte_writer_init_with_data (&bw, data, *size, FALSE);
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/* marker */
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WRITE_BYTE (&bw, 0xff);
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WRITE_BYTE (&bw, GST_JPEG_MARKER_DRI);
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total_size = 2;
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total_size += 2;
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/* S1 and S2 */
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WRITE_BYTE (&bw, (total_size >> 8) & 0xff);
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WRITE_BYTE (&bw, total_size & 0xff);
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if (!gst_byte_writer_put_uint16_be (&bw, interval)) {
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have_space = FALSE;
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goto error;
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}
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*size = gst_byte_writer_get_size (&bw);
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gst_byte_writer_reset (&bw);
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return GST_JPEG_BIT_WRITER_OK;
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error:
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gst_byte_writer_reset (&bw);
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*size = 0;
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return have_space ? GST_JPEG_BIT_WRITER_INVALID_DATA :
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GST_JPEG_BIT_WRITER_NO_MORE_SPACE;
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}
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/**
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* gst_jpeg_bit_writer_segment_with_data:
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* @marker: the #GstJpegMarker id for this segment
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* @seg_data: (in) (allow-none): the user provided bit stream data
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* @seg_size: (in): the size of the segment data
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* @data: (out): the generated bit stream of this segment
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* @size: (inout): the size in bytes of the input and output
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*
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* Generating the bit stream for a JPEG segment.
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*
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* Returns: a #GstJpegBitWriterResult
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*
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* Since: 1.26
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**/
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GstJpegBitWriterResult
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gst_jpeg_bit_writer_segment_with_data (GstJpegMarker marker, guint8 * seg_data,
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guint seg_size, guint8 * data, guint * size)
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{
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gboolean have_space = TRUE;
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GstByteWriter bw;
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guint total_size;
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g_return_val_if_fail (marker >= GST_JPEG_MARKER_SOF0
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&& marker <= GST_JPEG_MARKER_COM, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (data != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (size != NULL, GST_JPEG_BIT_WRITER_ERROR);
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g_return_val_if_fail (*size > 0, GST_JPEG_BIT_WRITER_ERROR);
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if (seg_data)
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g_return_val_if_fail (seg_size > 0, GST_JPEG_BIT_WRITER_ERROR);
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gst_byte_writer_init_with_data (&bw, data, *size, FALSE);
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/* marker */
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WRITE_BYTE (&bw, 0xff);
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WRITE_BYTE (&bw, marker);
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if (seg_size > 0) {
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total_size = 2;
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total_size += seg_size;
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/* S1 and S2 */
|
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WRITE_BYTE (&bw, (total_size >> 8) & 0xff);
|
|
WRITE_BYTE (&bw, total_size & 0xff);
|
|
|
|
/* Copy the user provided data. */
|
|
if (seg_data) {
|
|
if (!gst_byte_writer_put_data (&bw, seg_data, seg_size)) {
|
|
have_space = FALSE;
|
|
goto error;
|
|
}
|
|
} else {
|
|
if (!gst_byte_writer_fill (&bw, 0, seg_size)) {
|
|
have_space = FALSE;
|
|
goto error;
|
|
}
|
|
}
|
|
}
|
|
|
|
*size = gst_byte_writer_get_size (&bw);
|
|
gst_byte_writer_reset (&bw);
|
|
|
|
return GST_JPEG_BIT_WRITER_OK;
|
|
|
|
error:
|
|
gst_byte_writer_reset (&bw);
|
|
*size = 0;
|
|
return have_space ? GST_JPEG_BIT_WRITER_INVALID_DATA :
|
|
GST_JPEG_BIT_WRITER_NO_MORE_SPACE;
|
|
}
|