/*
* Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
-* @file libschroedinger.c
-* function definitions common to libschroedingerdec.c and libschroedingerenc.c
+* @file
+* function definitions common to libschroedinger decoder and encoder
*/
#include "libdirac_libschro.h"
unsigned int idx = ff_dirac_schro_get_video_format_idx (avccontext);
- return (idx < num_formats) ?
- ff_schro_video_formats[idx] : SCHRO_VIDEO_FORMAT_CUSTOM;
+ return (idx < num_formats) ? ff_schro_video_formats[idx] :
+ SCHRO_VIDEO_FORMAT_CUSTOM;
}
int ff_get_schro_frame_format (SchroChromaFormat schro_pix_fmt,
SchroFrameFormat *schro_frame_fmt)
{
- unsigned int num_formats = sizeof(ffmpeg_schro_pixel_format_map) /
- sizeof(ffmpeg_schro_pixel_format_map[0]);
+ unsigned int num_formats = sizeof(schro_pixel_format_map) /
+ sizeof(schro_pixel_format_map[0]);
int idx;
for (idx = 0; idx < num_formats; ++idx) {
- if (ffmpeg_schro_pixel_format_map[idx].schro_pix_fmt == schro_pix_fmt) {
- *schro_frame_fmt =
- ffmpeg_schro_pixel_format_map[idx].schro_frame_fmt;
+ if (schro_pixel_format_map[idx].schro_pix_fmt == schro_pix_fmt) {
+ *schro_frame_fmt = schro_pixel_format_map[idx].schro_frame_fmt;
return 0;
}
}
return -1;
}
+
+static void FreeSchroFrame(SchroFrame *frame, void *priv)
+{
+ AVPicture *p_pic = priv;
+
+ if (!p_pic)
+ return;
+
+ avpicture_free(p_pic);
+ av_freep(&p_pic);
+}
+
+SchroFrame *ff_create_schro_frame(AVCodecContext *avccontext,
+ SchroFrameFormat schro_frame_fmt)
+{
+ AVPicture *p_pic;
+ SchroFrame *p_frame;
+ int y_width, uv_width;
+ int y_height, uv_height;
+ int i;
+
+ y_width = avccontext->width;
+ y_height = avccontext->height;
+ uv_width = y_width >> (SCHRO_FRAME_FORMAT_H_SHIFT(schro_frame_fmt));
+ uv_height = y_height >> (SCHRO_FRAME_FORMAT_V_SHIFT(schro_frame_fmt));
+
+ p_pic = av_mallocz(sizeof(AVPicture));
+ avpicture_alloc(p_pic, avccontext->pix_fmt, y_width, y_height);
+
+ p_frame = schro_frame_new();
+ p_frame->format = schro_frame_fmt;
+ p_frame->width = y_width;
+ p_frame->height = y_height;
+ schro_frame_set_free_callback(p_frame, FreeSchroFrame, (void *)p_pic);
+
+ for (i = 0; i < 3; ++i) {
+ p_frame->components[i].width = i ? uv_width : y_width;
+ p_frame->components[i].stride = p_pic->linesize[i];
+ p_frame->components[i].height = i ? uv_height : y_height;
+ p_frame->components[i].length =
+ p_frame->components[i].stride * p_frame->components[i].height;
+ p_frame->components[i].data = p_pic->data[i];
+
+ if (i) {
+ p_frame->components[i].v_shift =
+ SCHRO_FRAME_FORMAT_V_SHIFT(p_frame->format);
+ p_frame->components[i].h_shift =
+ SCHRO_FRAME_FORMAT_H_SHIFT(p_frame->format);
+ }
+ }
+
+ return p_frame;
+}