* PCM codecs
* Copyright (c) 2001 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* @param offset Sample value offset
*/
#define ENCODE(type, endian, src, dst, n, shift, offset) \
- samples_##type = (type*)src; \
+ samples_##type = (const type*) src; \
for(;n>0;n--) { \
register type v = (*samples_##type++ >> shift) + offset; \
bytestream_put_##endian(&dst, v); \
unsigned char *frame, int buf_size, void *data)
{
int n, sample_size, v;
- short *samples;
+ const short *samples;
unsigned char *dst;
- uint8_t *srcu8;
- int16_t *samples_int16_t;
- int32_t *samples_int32_t;
- int64_t *samples_int64_t;
- uint16_t *samples_uint16_t;
- uint32_t *samples_uint32_t;
+ const uint8_t *srcu8;
+ const int16_t *samples_int16_t;
+ const int32_t *samples_int32_t;
+ const int64_t *samples_int64_t;
+ const uint16_t *samples_uint16_t;
+ const uint32_t *samples_uint32_t;
sample_size = av_get_bits_per_sample(avctx->codec->id)/8;
n = buf_size / sample_size;
}
avctx->sample_fmt = avctx->codec->sample_fmts[0];
+
+ if (avctx->sample_fmt == AV_SAMPLE_FMT_S32)
+ avctx->bits_per_raw_sample = av_get_bits_per_sample(avctx->codec->id);
+
return 0;
}
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
PCMDecode *s = avctx->priv_data;
- int sample_size, c, n;
+ int sample_size, c, n, i;
short *samples;
const uint8_t *src, *src8, *src2[MAX_CHANNELS];
uint8_t *dstu8;
if (CODEC_ID_PCM_DVD == avctx->codec_id)
/* 2 samples are interleaved per block in PCM_DVD */
sample_size = avctx->bits_per_coded_sample * 2 / 8;
+ else if (avctx->codec_id == CODEC_ID_PCM_LXF)
+ /* we process 40-bit blocks per channel for LXF */
+ sample_size = 5;
+
+ if (sample_size == 0) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid sample_size\n");
+ return AVERROR(EINVAL);
+ }
n = avctx->channels * sample_size;
default:
av_log(avctx, AV_LOG_ERROR, "PCM DVD unsupported sample depth\n");
return -1;
- break;
}
samples = (short *) dst_int32_t;
break;
+ case CODEC_ID_PCM_LXF:
+ dst_int32_t = data;
+ n /= avctx->channels;
+ //unpack and de-planerize
+ for (i = 0; i < n; i++) {
+ for (c = 0, src8 = src + i*5; c < avctx->channels; c++, src8 += n*5) {
+ //extract low 20 bits and expand to 32 bits
+ *dst_int32_t++ = (src8[2] << 28) | (src8[1] << 20) | (src8[0] << 12) |
+ ((src8[2] & 0xF) << 8) | src8[1];
+ }
+
+ for (c = 0, src8 = src + i*5; c < avctx->channels; c++, src8 += n*5) {
+ //extract high 20 bits and expand to 32 bits
+ *dst_int32_t++ = (src8[4] << 24) | (src8[3] << 16) |
+ ((src8[2] & 0xF0) << 8) | (src8[4] << 4) | (src8[3] >> 4);
+ }
+ }
+ src += n * avctx->channels * 5;
+ samples = (short *) dst_int32_t;
+ break;
default:
return -1;
}
}
#if CONFIG_ENCODERS
-#define PCM_ENCODER(id,sample_fmt_,name,long_name_) \
-AVCodec name ## _encoder = { \
- #name, \
- AVMEDIA_TYPE_AUDIO, \
- id, \
- 0, \
- pcm_encode_init, \
- pcm_encode_frame, \
- pcm_encode_close, \
- NULL, \
- .sample_fmts = (const enum SampleFormat[]){sample_fmt_,SAMPLE_FMT_NONE}, \
+#define PCM_ENCODER(id_,sample_fmt_,name_,long_name_) \
+AVCodec ff_ ## name_ ## _encoder = { \
+ .name = #name_, \
+ .type = AVMEDIA_TYPE_AUDIO, \
+ .id = id_, \
+ .init = pcm_encode_init, \
+ .encode = pcm_encode_frame, \
+ .close = pcm_encode_close, \
+ .sample_fmts = (const enum AVSampleFormat[]){sample_fmt_,AV_SAMPLE_FMT_NONE}, \
.long_name = NULL_IF_CONFIG_SMALL(long_name_), \
-};
+}
#else
#define PCM_ENCODER(id,sample_fmt_,name,long_name_)
#endif
#if CONFIG_DECODERS
-#define PCM_DECODER(id,sample_fmt_,name,long_name_) \
-AVCodec name ## _decoder = { \
- #name, \
- AVMEDIA_TYPE_AUDIO, \
- id, \
- sizeof(PCMDecode), \
- pcm_decode_init, \
- NULL, \
- NULL, \
- pcm_decode_frame, \
- .sample_fmts = (const enum SampleFormat[]){sample_fmt_,SAMPLE_FMT_NONE}, \
+#define PCM_DECODER(id_,sample_fmt_,name_,long_name_) \
+AVCodec ff_ ## name_ ## _decoder = { \
+ .name = #name_, \
+ .type = AVMEDIA_TYPE_AUDIO, \
+ .id = id_, \
+ .priv_data_size = sizeof(PCMDecode), \
+ .init = pcm_decode_init, \
+ .decode = pcm_decode_frame, \
+ .sample_fmts = (const enum AVSampleFormat[]){sample_fmt_,AV_SAMPLE_FMT_NONE}, \
.long_name = NULL_IF_CONFIG_SMALL(long_name_), \
-};
+}
#else
#define PCM_DECODER(id,sample_fmt_,name,long_name_)
#endif
#define PCM_CODEC(id, sample_fmt_, name, long_name_) \
- PCM_ENCODER(id,sample_fmt_,name,long_name_) PCM_DECODER(id,sample_fmt_,name,long_name_)
+ PCM_ENCODER(id,sample_fmt_,name,long_name_); PCM_DECODER(id,sample_fmt_,name,long_name_)
/* Note: Do not forget to add new entries to the Makefile as well. */
-PCM_CODEC (CODEC_ID_PCM_ALAW, SAMPLE_FMT_S16, pcm_alaw, "PCM A-law");
-PCM_CODEC (CODEC_ID_PCM_DVD, SAMPLE_FMT_S32, pcm_dvd, "PCM signed 20|24-bit big-endian");
-PCM_CODEC (CODEC_ID_PCM_F32BE, SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian");
-PCM_CODEC (CODEC_ID_PCM_F32LE, SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian");
-PCM_CODEC (CODEC_ID_PCM_F64BE, SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian");
-PCM_CODEC (CODEC_ID_PCM_F64LE, SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian");
-PCM_CODEC (CODEC_ID_PCM_MULAW, SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law");
-PCM_CODEC (CODEC_ID_PCM_S8, SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit");
-PCM_CODEC (CODEC_ID_PCM_S16BE, SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian");
-PCM_CODEC (CODEC_ID_PCM_S16LE, SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian");
-PCM_DECODER(CODEC_ID_PCM_S16LE_PLANAR, SAMPLE_FMT_S16, pcm_s16le_planar, "PCM 16-bit little-endian planar");
-PCM_CODEC (CODEC_ID_PCM_S24BE, SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian");
-PCM_CODEC (CODEC_ID_PCM_S24DAUD, SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit");
-PCM_CODEC (CODEC_ID_PCM_S24LE, SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian");
-PCM_CODEC (CODEC_ID_PCM_S32BE, SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian");
-PCM_CODEC (CODEC_ID_PCM_S32LE, SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian");
-PCM_CODEC (CODEC_ID_PCM_U8, SAMPLE_FMT_U8, pcm_u8, "PCM unsigned 8-bit");
-PCM_CODEC (CODEC_ID_PCM_U16BE, SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian");
-PCM_CODEC (CODEC_ID_PCM_U16LE, SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian");
-PCM_CODEC (CODEC_ID_PCM_U24BE, SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian");
-PCM_CODEC (CODEC_ID_PCM_U24LE, SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian");
-PCM_CODEC (CODEC_ID_PCM_U32BE, SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian");
-PCM_CODEC (CODEC_ID_PCM_U32LE, SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian");
-PCM_CODEC (CODEC_ID_PCM_ZORK, SAMPLE_FMT_S16, pcm_zork, "PCM Zork");
+PCM_CODEC (CODEC_ID_PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law");
+PCM_DECODER(CODEC_ID_PCM_DVD, AV_SAMPLE_FMT_S32, pcm_dvd, "PCM signed 20|24-bit big-endian");
+PCM_CODEC (CODEC_ID_PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian");
+PCM_CODEC (CODEC_ID_PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian");
+PCM_CODEC (CODEC_ID_PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian");
+PCM_CODEC (CODEC_ID_PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian");
+PCM_DECODER(CODEC_ID_PCM_LXF, AV_SAMPLE_FMT_S32, pcm_lxf, "PCM signed 20-bit little-endian planar");
+PCM_CODEC (CODEC_ID_PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law");
+PCM_CODEC (CODEC_ID_PCM_S8, AV_SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit");
+PCM_CODEC (CODEC_ID_PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian");
+PCM_CODEC (CODEC_ID_PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian");
+PCM_DECODER(CODEC_ID_PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16, pcm_s16le_planar, "PCM 16-bit little-endian planar");
+PCM_CODEC (CODEC_ID_PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian");
+PCM_CODEC (CODEC_ID_PCM_S24DAUD, AV_SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit");
+PCM_CODEC (CODEC_ID_PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian");
+PCM_CODEC (CODEC_ID_PCM_S32BE, AV_SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian");
+PCM_CODEC (CODEC_ID_PCM_S32LE, AV_SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian");
+PCM_CODEC (CODEC_ID_PCM_U8, AV_SAMPLE_FMT_U8, pcm_u8, "PCM unsigned 8-bit");
+PCM_CODEC (CODEC_ID_PCM_U16BE, AV_SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian");
+PCM_CODEC (CODEC_ID_PCM_U16LE, AV_SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian");
+PCM_CODEC (CODEC_ID_PCM_U24BE, AV_SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian");
+PCM_CODEC (CODEC_ID_PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian");
+PCM_CODEC (CODEC_ID_PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian");
+PCM_CODEC (CODEC_ID_PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian");
+PCM_CODEC (CODEC_ID_PCM_ZORK, AV_SAMPLE_FMT_S16, pcm_zork, "PCM Zork");
projects / ffmpeg / blobdiff