1 /*
2 * audio interleaving prototypes and declarations
3 *
4 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #ifndef AVFORMAT_AUDIOINTERLEAVE_H
24 #define AVFORMAT_AUDIOINTERLEAVE_H
25
28
31 unsigned fifo_size;
///< size of currently allocated FIFO
32 uint64_t
dts;
///< current dts
33 int sample_size;
///< size of one sample all channels included
35 const int *
samples;
///< current samples per frame, pointer to samples_per_frame
38
41
42 /**
43 * Rechunk audio PCM packets per AudioInterleaveContext->samples_per_frame
44 * and interleave them correctly.
45 * The first element of AVStream->priv_data must be AudioInterleaveContext
46 * when using this function.
47 *
48 * @param get_packet function will output a packet when streams are correctly interleaved.
49 * @param compare_ts function will compare AVPackets and decide interleaving order.
50 */
54
55 #endif /* AVFORMAT_AUDIOINTERLEAVE_H */
static void flush(AVCodecContext *avctx)
const int * samples
current samples per frame, pointer to samples_per_frame
const int * samples_per_frame
must be 0-terminated
unsigned fifo_size
size of currently allocated FIFO
int ff_audio_interleave_init(AVFormatContext *s, const int *samples_per_frame, AVRational time_base)
void ff_audio_interleave_close(AVFormatContext *s)
AVRational time_base
time base of output audio packets
int ff_audio_rechunk_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush, int(*get_packet)(AVFormatContext *, AVPacket *, AVPacket *, int), int(*compare_ts)(AVFormatContext *, AVPacket *, AVPacket *))
Rechunk audio PCM packets per AudioInterleaveContext->samples_per_frame and interleave them correctly...
a very simple circular buffer FIFO implementation
rational number numerator/denominator
int sample_size
size of one sample all channels included
static int get_packet(URLContext *s, int for_header)
Interact with the server by receiving and sending RTMP packets until there is some significant data (...
This structure stores compressed data.