From 587c8ab9128455ccf2580c5350992e4a402dc8fd Mon Sep 17 00:00:00 2001 From: Mina Nagy Zaki Date: Mon, 1 Aug 2011 11:33:26 +0300 Subject: lavfi: add asrc_abuffer - audio buffer source Originally based on code by Stefano Sabatini and S. N. Hemanth. Signed-off-by: Stefano Sabatini --- libavfilter/asrc_abuffer.h | 80 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 libavfilter/asrc_abuffer.h (limited to 'libavfilter/asrc_abuffer.h') diff --git a/libavfilter/asrc_abuffer.h b/libavfilter/asrc_abuffer.h new file mode 100644 index 0000000000..4352c74646 --- /dev/null +++ b/libavfilter/asrc_abuffer.h @@ -0,0 +1,80 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg 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, + * 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 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVFILTER_ASRC_ABUFFER_H +#define AVFILTER_ASRC_ABUFFER_H + +#include "avfilter.h" + +/** + * @file + * memory buffer source for audio + */ + +/** + * Queue an audio buffer to the audio buffer source. + * + * @param abuffersrc audio source buffer context + * @param data pointers to the samples planes + * @param linesize linesizes of each audio buffer plane + * @param nb_samples number of samples per channel + * @param sample_fmt sample format of the audio data + * @param ch_layout channel layout of the audio data + * @param planar flag to indicate if audio data is planar or packed + * @param pts presentation timestamp of the audio buffer + * @param flags unused + */ +int av_asrc_buffer_add_samples(AVFilterContext *abuffersrc, + uint8_t *data[8], int linesize[8], + int nb_samples, int sample_rate, + int sample_fmt, int64_t ch_layout, int planar, + int64_t pts, int av_unused flags); + +/** + * Queue an audio buffer to the audio buffer source. + * + * This is similar to av_asrc_buffer_add_samples(), but the samples + * are stored in a buffer with known size. + * + * @param abuffersrc audio source buffer context + * @param buf pointer to the samples data, packed is assumed + * @param size the size in bytes of the buffer, it must contain an + * integer number of samples + * @param sample_fmt sample format of the audio data + * @param ch_layout channel layout of the audio data + * @param pts presentation timestamp of the audio buffer + * @param flags unused + */ +int av_asrc_buffer_add_buffer(AVFilterContext *abuffersrc, + uint8_t *buf, int buf_size, + int sample_rate, + int sample_fmt, int64_t ch_layout, int planar, + int64_t pts, int av_unused flags); + +/** + * Queue an audio buffer to the audio buffer source. + * + * @param abuffersrc audio source buffer context + * @param samplesref buffer ref to queue + * @param flags unused + */ +int av_asrc_buffer_add_audio_buffer_ref(AVFilterContext *abuffersrc, + AVFilterBufferRef *samplesref, + int av_unused flags); + +#endif /* AVFILTER_ASRC_ABUFFER_H */ -- cgit v1.2.3