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Diffstat (limited to 'ffmpeg1/libavutil/samplefmt.c')
-rw-r--r--ffmpeg1/libavutil/samplefmt.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/ffmpeg1/libavutil/samplefmt.c b/ffmpeg1/libavutil/samplefmt.c
deleted file mode 100644
index 6f762df..0000000
--- a/ffmpeg1/libavutil/samplefmt.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/*
- * 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
- */
-
-#include "common.h"
-#include "samplefmt.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-typedef struct SampleFmtInfo {
- char name[8];
- int bits;
- int planar;
- enum AVSampleFormat altform; ///< planar<->packed alternative form
-} SampleFmtInfo;
-
-/** this table gives more information about formats */
-static const SampleFmtInfo sample_fmt_info[AV_SAMPLE_FMT_NB] = {
- [AV_SAMPLE_FMT_U8] = { .name = "u8", .bits = 8, .planar = 0, .altform = AV_SAMPLE_FMT_U8P },
- [AV_SAMPLE_FMT_S16] = { .name = "s16", .bits = 16, .planar = 0, .altform = AV_SAMPLE_FMT_S16P },
- [AV_SAMPLE_FMT_S32] = { .name = "s32", .bits = 32, .planar = 0, .altform = AV_SAMPLE_FMT_S32P },
- [AV_SAMPLE_FMT_FLT] = { .name = "flt", .bits = 32, .planar = 0, .altform = AV_SAMPLE_FMT_FLTP },
- [AV_SAMPLE_FMT_DBL] = { .name = "dbl", .bits = 64, .planar = 0, .altform = AV_SAMPLE_FMT_DBLP },
- [AV_SAMPLE_FMT_U8P] = { .name = "u8p", .bits = 8, .planar = 1, .altform = AV_SAMPLE_FMT_U8 },
- [AV_SAMPLE_FMT_S16P] = { .name = "s16p", .bits = 16, .planar = 1, .altform = AV_SAMPLE_FMT_S16 },
- [AV_SAMPLE_FMT_S32P] = { .name = "s32p", .bits = 32, .planar = 1, .altform = AV_SAMPLE_FMT_S32 },
- [AV_SAMPLE_FMT_FLTP] = { .name = "fltp", .bits = 32, .planar = 1, .altform = AV_SAMPLE_FMT_FLT },
- [AV_SAMPLE_FMT_DBLP] = { .name = "dblp", .bits = 64, .planar = 1, .altform = AV_SAMPLE_FMT_DBL },
-};
-
-const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt)
-{
- if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
- return NULL;
- return sample_fmt_info[sample_fmt].name;
-}
-
-enum AVSampleFormat av_get_sample_fmt(const char *name)
-{
- int i;
-
- for (i = 0; i < AV_SAMPLE_FMT_NB; i++)
- if (!strcmp(sample_fmt_info[i].name, name))
- return i;
- return AV_SAMPLE_FMT_NONE;
-}
-
-enum AVSampleFormat av_get_alt_sample_fmt(enum AVSampleFormat sample_fmt, int planar)
-{
- if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
- return AV_SAMPLE_FMT_NONE;
- if (sample_fmt_info[sample_fmt].planar == planar)
- return sample_fmt;
- return sample_fmt_info[sample_fmt].altform;
-}
-
-enum AVSampleFormat av_get_packed_sample_fmt(enum AVSampleFormat sample_fmt)
-{
- if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
- return AV_SAMPLE_FMT_NONE;
- if (sample_fmt_info[sample_fmt].planar)
- return sample_fmt_info[sample_fmt].altform;
- return sample_fmt;
-}
-
-enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
-{
- if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
- return AV_SAMPLE_FMT_NONE;
- if (sample_fmt_info[sample_fmt].planar)
- return sample_fmt;
- return sample_fmt_info[sample_fmt].altform;
-}
-
-char *av_get_sample_fmt_string (char *buf, int buf_size, enum AVSampleFormat sample_fmt)
-{
- /* print header */
- if (sample_fmt < 0)
- snprintf(buf, buf_size, "name " " depth");
- else if (sample_fmt < AV_SAMPLE_FMT_NB) {
- SampleFmtInfo info = sample_fmt_info[sample_fmt];
- snprintf (buf, buf_size, "%-6s" " %2d ", info.name, info.bits);
- }
-
- return buf;
-}
-
-int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
-{
- return sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB ?
- 0 : sample_fmt_info[sample_fmt].bits >> 3;
-}
-
-#if FF_API_GET_BITS_PER_SAMPLE_FMT
-int av_get_bits_per_sample_fmt(enum AVSampleFormat sample_fmt)
-{
- return sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB ?
- 0 : sample_fmt_info[sample_fmt].bits;
-}
-#endif
-
-int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
-{
- if (sample_fmt < 0 || sample_fmt >= AV_SAMPLE_FMT_NB)
- return 0;
- return sample_fmt_info[sample_fmt].planar;
-}
-
-int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
- enum AVSampleFormat sample_fmt, int align)
-{
- int line_size;
- int sample_size = av_get_bytes_per_sample(sample_fmt);
- int planar = av_sample_fmt_is_planar(sample_fmt);
-
- /* validate parameter ranges */
- if (!sample_size || nb_samples <= 0 || nb_channels <= 0)
- return AVERROR(EINVAL);
-
- /* auto-select alignment if not specified */
- if (!align) {
- align = 1;
- nb_samples = FFALIGN(nb_samples, 32);
- }
-
- /* check for integer overflow */
- if (nb_channels > INT_MAX / align ||
- (int64_t)nb_channels * nb_samples > (INT_MAX - (align * nb_channels)) / sample_size)
- return AVERROR(EINVAL);
-
- line_size = planar ? FFALIGN(nb_samples * sample_size, align) :
- FFALIGN(nb_samples * sample_size * nb_channels, align);
- if (linesize)
- *linesize = line_size;
-
- return planar ? line_size * nb_channels : line_size;
-}
-
-int av_samples_fill_arrays(uint8_t **audio_data, int *linesize,
- const uint8_t *buf, int nb_channels, int nb_samples,
- enum AVSampleFormat sample_fmt, int align)
-{
- int ch, planar, buf_size, line_size;
-
- planar = av_sample_fmt_is_planar(sample_fmt);
- buf_size = av_samples_get_buffer_size(&line_size, nb_channels, nb_samples,
- sample_fmt, align);
- if (buf_size < 0)
- return buf_size;
-
- audio_data[0] = (uint8_t *)buf;
- for (ch = 1; planar && ch < nb_channels; ch++)
- audio_data[ch] = audio_data[ch-1] + line_size;
-
- if (linesize)
- *linesize = line_size;
-
-#if FF_API_SAMPLES_UTILS_RETURN_ZERO
- return 0;
-#else
- return buf_size;
-#endif
-}
-
-int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels,
- int nb_samples, enum AVSampleFormat sample_fmt, int align)
-{
- uint8_t *buf;
- int size = av_samples_get_buffer_size(NULL, nb_channels, nb_samples,
- sample_fmt, align);
- if (size < 0)
- return size;
-
- buf = av_malloc(size);
- if (!buf)
- return AVERROR(ENOMEM);
-
- size = av_samples_fill_arrays(audio_data, linesize, buf, nb_channels,
- nb_samples, sample_fmt, align);
- if (size < 0) {
- av_free(buf);
- return size;
- }
-
- av_samples_set_silence(audio_data, 0, nb_samples, nb_channels, sample_fmt);
-
-#if FF_API_SAMPLES_UTILS_RETURN_ZERO
- return 0;
-#else
- return size;
-#endif
-}
-
-int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset,
- int src_offset, int nb_samples, int nb_channels,
- enum AVSampleFormat sample_fmt)
-{
- int planar = av_sample_fmt_is_planar(sample_fmt);
- int planes = planar ? nb_channels : 1;
- int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels);
- int data_size = nb_samples * block_align;
- int i;
-
- dst_offset *= block_align;
- src_offset *= block_align;
-
- if((dst[0] < src[0] ? src[0] - dst[0] : dst[0] - src[0]) >= data_size) {
- for (i = 0; i < planes; i++)
- memcpy(dst[i] + dst_offset, src[i] + src_offset, data_size);
- } else {
- for (i = 0; i < planes; i++)
- memmove(dst[i] + dst_offset, src[i] + src_offset, data_size);
- }
-
- return 0;
-}
-
-int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples,
- int nb_channels, enum AVSampleFormat sample_fmt)
-{
- int planar = av_sample_fmt_is_planar(sample_fmt);
- int planes = planar ? nb_channels : 1;
- int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels);
- int data_size = nb_samples * block_align;
- int fill_char = (sample_fmt == AV_SAMPLE_FMT_U8 ||
- sample_fmt == AV_SAMPLE_FMT_U8P) ? 0x80 : 0x00;
- int i;
-
- offset *= block_align;
-
- for (i = 0; i < planes; i++)
- memset(audio_data[i] + offset, fill_char, data_size);
-
- return 0;
-}
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