From 40c2e71d33a1b8d5ec9469691b01188589ec0fe7 Mon Sep 17 00:00:00 2001 From: wm4 Date: Fri, 28 Aug 2020 20:26:14 +0200 Subject: audio_buffer: remove this Unused, was terrible garbage. It was (or at least its implementation was) always a make-shift solution, and just gross bullshit. It is unused now, so delete it. --- audio/audio_buffer.c | 160 --------------------------------------------------- 1 file changed, 160 deletions(-) delete mode 100644 audio/audio_buffer.c (limited to 'audio/audio_buffer.c') diff --git a/audio/audio_buffer.c b/audio/audio_buffer.c deleted file mode 100644 index a5591e1fe8..0000000000 --- a/audio/audio_buffer.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * This file is part of mpv. - * - * mpv 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. - * - * mpv 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 mpv. If not, see . - */ - -#include -#include -#include - -#include "common/common.h" - -#include "chmap.h" -#include "audio_buffer.h" -#include "format.h" - -struct mp_audio_buffer { - int format; - struct mp_chmap channels; - int srate; - int sstride; - int num_planes; - uint8_t *data[MP_NUM_CHANNELS]; - int allocated; - int num_samples; -}; - -struct mp_audio_buffer *mp_audio_buffer_create(void *talloc_ctx) -{ - return talloc_zero(talloc_ctx, struct mp_audio_buffer); -} - -// Reinitialize the buffer, set a new format, drop old data. -// The audio data in fmt is not used, only the format. -void mp_audio_buffer_reinit_fmt(struct mp_audio_buffer *ab, int format, - const struct mp_chmap *channels, int srate) -{ - for (int n = 0; n < MP_NUM_CHANNELS; n++) - TA_FREEP(&ab->data[n]); - ab->format = format; - ab->channels = *channels; - ab->srate = srate; - ab->allocated = 0; - ab->num_samples = 0; - ab->sstride = af_fmt_to_bytes(ab->format); - ab->num_planes = 1; - if (af_fmt_is_planar(ab->format)) { - ab->num_planes = ab->channels.num; - } else { - ab->sstride *= ab->channels.num; - } -} - -// Make the total size of the internal buffer at least this number of samples. -void mp_audio_buffer_preallocate_min(struct mp_audio_buffer *ab, int samples) -{ - if (samples > ab->allocated) { - for (int n = 0; n < ab->num_planes; n++) { - ab->data[n] = talloc_realloc(ab, ab->data[n], char, - ab->sstride * samples); - } - ab->allocated = samples; - } -} - -// Get number of samples that can be written without forcing a resize of the -// internal buffer. -int mp_audio_buffer_get_write_available(struct mp_audio_buffer *ab) -{ - return ab->allocated - ab->num_samples; -} - -// All integer parameters are in samples. -// dst and src can overlap. -static void copy_planes(struct mp_audio_buffer *ab, - uint8_t **dst, int dst_offset, - uint8_t **src, int src_offset, int length) -{ - if (!length) - return; - - for (int n = 0; n < ab->num_planes; n++) { - memmove((char *)dst[n] + dst_offset * ab->sstride, - (char *)src[n] + src_offset * ab->sstride, - length * ab->sstride); - } -} - -// Append data to the end of the buffer. -// If the buffer is not large enough, it is transparently resized. -void mp_audio_buffer_append(struct mp_audio_buffer *ab, void **ptr, int samples) -{ - mp_audio_buffer_preallocate_min(ab, ab->num_samples + samples); - copy_planes(ab, ab->data, ab->num_samples, (uint8_t **)ptr, 0, samples); - ab->num_samples += samples; -} - -// Prepend silence to the start of the buffer. -void mp_audio_buffer_prepend_silence(struct mp_audio_buffer *ab, int samples) -{ - assert(samples >= 0); - mp_audio_buffer_preallocate_min(ab, ab->num_samples + samples); - copy_planes(ab, ab->data, samples, ab->data, 0, ab->num_samples); - ab->num_samples += samples; - for (int n = 0; n < ab->num_planes; n++) - af_fill_silence(ab->data[n], samples * ab->sstride, ab->format); -} - -void mp_audio_buffer_duplicate(struct mp_audio_buffer *ab, int samples) -{ - assert(samples >= 0 && samples <= ab->num_samples); - mp_audio_buffer_preallocate_min(ab, ab->num_samples + samples); - copy_planes(ab, ab->data, ab->num_samples, - ab->data, ab->num_samples - samples, samples); - ab->num_samples += samples; -} - -// Get the start of the current readable buffer. -void mp_audio_buffer_peek(struct mp_audio_buffer *ab, uint8_t ***ptr, - int *samples) -{ - *ptr = ab->data; - *samples = ab->num_samples; -} - -// Skip leading samples. (Used with mp_audio_buffer_peek() to read data.) -void mp_audio_buffer_skip(struct mp_audio_buffer *ab, int samples) -{ - assert(samples >= 0 && samples <= ab->num_samples); - copy_planes(ab, ab->data, 0, ab->data, samples, ab->num_samples - samples); - ab->num_samples -= samples; -} - -void mp_audio_buffer_clear(struct mp_audio_buffer *ab) -{ - ab->num_samples = 0; -} - -// Return number of buffered audio samples -int mp_audio_buffer_samples(struct mp_audio_buffer *ab) -{ - return ab->num_samples; -} - -// Return amount of buffered audio in seconds. -double mp_audio_buffer_seconds(struct mp_audio_buffer *ab) -{ - return ab->num_samples / (double)ab->srate; -} -- cgit v1.2.3