/*
* 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 libavcodec/libschroedinger.h
-* data structures common to libschroedingerdec.c and libschroedingerenc.c
+* @file
+* data structures common to libschroedinger decoder and encoder
*/
#ifndef AVCODEC_LIBSCHROEDINGER_H
#include <schroedinger/schrobitstream.h>
#include <schroedinger/schroframe.h>
+
#include "avcodec.h"
+typedef struct SchroVideoFormatInfo {
+ uint16_t width;
+ uint16_t height;
+ uint16_t frame_rate_num;
+ uint16_t frame_rate_denom;
+} SchroVideoFormatInfo;
+
+/**
+* contains a single encoded frame returned from Dirac or Schroedinger
+*/
+typedef struct FFSchroEncodedFrame {
+ /** encoded frame data */
+ uint8_t *p_encbuf;
+
+ /** encoded frame size */
+ uint32_t size;
+
+ /** encoded frame number. Will be used as pts */
+ uint32_t frame_num;
+
+ /** key frame flag. 1 : is key frame , 0 : in not key frame */
+ uint16_t key_frame;
+} FFSchroEncodedFrame;
+
+/**
+* queue element
+*/
+typedef struct FFSchroQueueElement {
+ /** Data to be stored in queue*/
+ void *data;
+ /** Pointer to next element queue */
+ struct FFSchroQueueElement *next;
+} FFSchroQueueElement;
+
+
+/**
+* A simple queue implementation used in libschroedinger
+*/
+typedef struct FFSchroQueue {
+ /** Pointer to head of queue */
+ FFSchroQueueElement *p_head;
+ /** Pointer to tail of queue */
+ FFSchroQueueElement *p_tail;
+ /** Queue size*/
+ int size;
+} FFSchroQueue;
+
+/**
+* Initialise the queue
+*/
+void ff_schro_queue_init(FFSchroQueue *queue);
+
+/**
+* Add an element to the end of the queue
+*/
+int ff_schro_queue_push_back(FFSchroQueue *queue, void *p_data);
+
+/**
+* Return the first element in the queue
+*/
+void *ff_schro_queue_pop(FFSchroQueue *queue);
+
+/**
+* Free the queue resources. free_func is a function supplied by the caller to
+* free any resources allocated by the caller. The data field of the queue
+* element is passed to it.
+*/
+void ff_schro_queue_free(FFSchroQueue *queue, void (*free_func)(void *));
+
static const struct {
- enum PixelFormat ff_pix_fmt;
+ enum AVPixelFormat ff_pix_fmt;
SchroChromaFormat schro_pix_fmt;
SchroFrameFormat schro_frame_fmt;
-} ffmpeg_schro_pixel_format_map[] = {
- { PIX_FMT_YUV420P, SCHRO_CHROMA_420, SCHRO_FRAME_FORMAT_U8_420 },
- { PIX_FMT_YUV422P, SCHRO_CHROMA_422, SCHRO_FRAME_FORMAT_U8_422 },
- { PIX_FMT_YUV444P, SCHRO_CHROMA_444, SCHRO_FRAME_FORMAT_U8_444 },
+} schro_pixel_format_map[] = {
+ { AV_PIX_FMT_YUV420P, SCHRO_CHROMA_420, SCHRO_FRAME_FORMAT_U8_420 },
+ { AV_PIX_FMT_YUV422P, SCHRO_CHROMA_422, SCHRO_FRAME_FORMAT_U8_422 },
+ { AV_PIX_FMT_YUV444P, SCHRO_CHROMA_444, SCHRO_FRAME_FORMAT_U8_444 },
};
/**
* Returns the video format preset matching the input video dimensions and
* time base.
*/
-SchroVideoFormatEnum ff_get_schro_video_format_preset (AVCodecContext *avccontext);
+SchroVideoFormatEnum ff_get_schro_video_format_preset (AVCodecContext *avctx);
/**
* Sets the Schroedinger frame format corresponding to the Schro chroma format
int ff_get_schro_frame_format(SchroChromaFormat schro_chroma_fmt,
SchroFrameFormat *schro_frame_fmt);
+/**
+* Create a Schro frame based on the dimensions and frame format
+* passed. Returns a pointer to a frame on success, NULL on failure.
+*/
+SchroFrame *ff_create_schro_frame(AVCodecContext *avctx,
+ SchroFrameFormat schro_frame_fmt);
+
#endif /* AVCODEC_LIBSCHROEDINGER_H */