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authorMina Nagy Zaki <mnzaki@gmail.com>2011-08-01 11:33:26 +0300
committerStefano Sabatini <stefano.sabatini-lala@poste.it>2011-08-21 11:37:57 +0200
commit587c8ab9128455ccf2580c5350992e4a402dc8fd (patch)
tree90e8b2389003a3fde082987cbfdd3cb6e3bcdd56 /libavfilter/asrc_abuffer.h
parentf138c7f993e1aaf5223c546da5292993a467ee8d (diff)
downloadffmpeg-streaming-587c8ab9128455ccf2580c5350992e4a402dc8fd.zip
ffmpeg-streaming-587c8ab9128455ccf2580c5350992e4a402dc8fd.tar.gz
lavfi: add asrc_abuffer - audio buffer source
Originally based on code by Stefano Sabatini and S. N. Hemanth. Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Diffstat (limited to 'libavfilter/asrc_abuffer.h')
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1 files changed, 80 insertions, 0 deletions
diff --git a/libavfilter/asrc_abuffer.h b/libavfilter/asrc_abuffer.h
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+/*
+ * 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 */
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