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/* GStreamer
* Copyright (C) <2009> Edward Hervey <bilboed@bilboed.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_FFMPEG_UTILS_H__
#define __GST_FFMPEG_UTILS_H__
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <libavcodec/avcodec.h>
#include <libavutil/mathematics.h>
#include <gst/gst.h>
/*
*Get the size of an picture
*/
int
gst_ffmpeg_avpicture_get_size (int pix_fmt, int width, int height);
/*
* Fill in pointers in an AVFrame, aligned by 4 (required by X).
*/
int
gst_ffmpeg_avpicture_fill (AVFrame * picture,
uint8_t * ptr,
enum AVPixelFormat pix_fmt,
int width,
int height);
/*
* Convert from/to a GStreamer <-> FFMpeg timestamp.
*/
static inline guint64
gst_ffmpeg_time_ff_to_gst (gint64 pts, AVRational base)
{
guint64 out;
if (pts == AV_NOPTS_VALUE){
out = GST_CLOCK_TIME_NONE;
} else {
AVRational bq = { 1, GST_SECOND };
out = av_rescale_q (pts, base, bq);
}
return out;
}
static inline gint64
gst_ffmpeg_time_gst_to_ff (guint64 time, AVRational base)
{
gint64 out;
if (!GST_CLOCK_TIME_IS_VALID (time) || base.num == 0) {
out = AV_NOPTS_VALUE;
} else {
AVRational bq = { 1, GST_SECOND };
out = av_rescale_q (time, bq, base);
}
return out;
}
void
gst_ffmpeg_init_pix_fmt_info(void);
int
gst_ffmpeg_auto_max_threads(void);
const gchar *
gst_ffmpeg_get_codecid_longname (enum AVCodecID codec_id);
gint
av_smp_format_depth(enum AVSampleFormat smp_fmt);
GstBuffer *
new_aligned_buffer (gint size);
#endif /* __GST_FFMPEG_UTILS_H__ */
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