* PCM codecs
*/
-#include "libavutil/common.h" /* for av_reverse */
+#include "libavutil/attributes.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
+#include "mathops.h"
#include "pcm_tablegen.h"
-#define MAX_CHANNELS 64
-
static av_cold int pcm_encode_init(AVCodecContext *avctx)
{
avctx->frame_size = 0;
avctx->bits_per_coded_sample = av_get_bits_per_sample(avctx->codec->id);
avctx->block_align = avctx->channels * avctx->bits_per_coded_sample / 8;
avctx->bit_rate = avctx->block_align * avctx->sample_rate * 8;
- avctx->coded_frame = avcodec_alloc_frame();
- if (!avctx->coded_frame)
- return AVERROR(ENOMEM);
-
- return 0;
-}
-
-static av_cold int pcm_encode_close(AVCodecContext *avctx)
-{
- av_freep(&avctx->coded_frame);
return 0;
}
break;
case AV_CODEC_ID_PCM_S24DAUD:
for (; n > 0; n--) {
- uint32_t tmp = av_reverse[(*samples >> 8) & 0xff] +
- (av_reverse[*samples & 0xff] << 8);
+ uint32_t tmp = ff_reverse[(*samples >> 8) & 0xff] +
+ (ff_reverse[*samples & 0xff] << 8);
tmp <<= 4; // sync flags would go here
bytestream_put_be24(&dst, tmp);
samples++;
}
typedef struct PCMDecode {
- AVFrame frame;
short table[256];
} PCMDecode;
PCMDecode *s = avctx->priv_data;
int i;
- if (avctx->channels <= 0 || avctx->channels > MAX_CHANNELS) {
+ if (avctx->channels <= 0) {
av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n");
return AVERROR(EINVAL);
}
if (avctx->sample_fmt == AV_SAMPLE_FMT_S32)
avctx->bits_per_raw_sample = av_get_bits_per_sample(avctx->codec->id);
- avcodec_get_frame_defaults(&s->frame);
- avctx->coded_frame = &s->frame;
-
return 0;
}
dst += size / 8; \
}
+#if HAVE_BIGENDIAN
+#define DECODE_PLANAR(size, endian, src, dst, n, shift, offset) \
+ { \
+ int n2; \
+ n /= avctx->channels; \
+ for (c = 0; c < avctx->channels; c++) { \
+ samples = frame->extended_data[c]; \
+ n2 = n; \
+ DECODE(size, endian, src, samples, n2, 0, 0) \
+ } \
+ }
+#else
+#define DECODE_PLANAR(size, endian, src, dst, n, shift, offset) \
+ { \
+ n /= avctx->channels; \
+ for (c = 0; c < avctx->channels; c++) { \
+ samples = frame->extended_data[c]; \
+ memcpy(samples, src, n * size / 8); \
+ src += n * size / 8; \
+ } \
+ }
+#endif /* HAVE_BIGENDIAN */
+
static int pcm_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
const uint8_t *src = avpkt->data;
int buf_size = avpkt->size;
PCMDecode *s = avctx->priv_data;
+ AVFrame *frame = data;
int sample_size, c, n, ret, samples_per_block;
uint8_t *samples;
int32_t *dst_int32_t;
/* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */
samples_per_block = 1;
- if (AV_CODEC_ID_PCM_DVD == avctx->codec_id) {
- if (avctx->bits_per_coded_sample != 20 &&
- avctx->bits_per_coded_sample != 24) {
- av_log(avctx, AV_LOG_ERROR, "PCM DVD unsupported sample depth\n");
- return AVERROR(EINVAL);
- }
- /* 2 samples are interleaved per block in PCM_DVD */
- samples_per_block = 2;
- sample_size = avctx->bits_per_coded_sample * 2 / 8;
- } else if (avctx->codec_id == AV_CODEC_ID_PCM_LXF) {
+ if (avctx->codec_id == AV_CODEC_ID_PCM_LXF) {
/* we process 40-bit blocks per channel for LXF */
samples_per_block = 2;
sample_size = 5;
n = buf_size / sample_size;
/* get output buffer */
- s->frame.nb_samples = n * samples_per_block / avctx->channels;
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
+ frame->nb_samples = n * samples_per_block / avctx->channels;
+ if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
- samples = s->frame.data[0];
+ samples = frame->data[0];
switch (avctx->codec->id) {
case AV_CODEC_ID_PCM_U32LE:
for (; n > 0; n--) {
uint32_t v = bytestream_get_be24(&src);
v >>= 4; // sync flags are here
- AV_WN16A(samples, av_reverse[(v >> 8) & 0xff] +
- (av_reverse[v & 0xff] << 8));
+ AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] +
+ (ff_reverse[v & 0xff] << 8));
samples += 2;
}
break;
+ case AV_CODEC_ID_PCM_S16BE_PLANAR:
+ DECODE_PLANAR(16, be16, src, samples, n, 0, 0);
+ break;
case AV_CODEC_ID_PCM_S16LE_PLANAR:
- {
- const uint8_t *src2[MAX_CHANNELS];
- n /= avctx->channels;
- for (c = 0; c < avctx->channels; c++)
- src2[c] = &src[c * n * 2];
- for (; n > 0; n--)
- for (c = 0; c < avctx->channels; c++) {
- AV_WN16A(samples, bytestream_get_le16(&src2[c]));
- samples += 2;
- }
+ DECODE_PLANAR(16, le16, src, samples, n, 0, 0);
+ break;
+ case AV_CODEC_ID_PCM_S24LE_PLANAR:
+ DECODE_PLANAR(32, le24, src, samples, n, 8, 0);
+ break;
+ case AV_CODEC_ID_PCM_S32LE_PLANAR:
+ DECODE_PLANAR(32, le32, src, samples, n, 0, 0);
break;
- }
case AV_CODEC_ID_PCM_U16LE:
DECODE(16, le16, src, samples, n, 0, 0x8000)
break;
samples += 2;
}
break;
- case AV_CODEC_ID_PCM_DVD:
- {
- const uint8_t *src8;
- dst_int32_t = (int32_t *)s->frame.data[0];
- n /= avctx->channels;
- switch (avctx->bits_per_coded_sample) {
- case 20:
- while (n--) {
- c = avctx->channels;
- src8 = src + 4 * c;
- while (c--) {
- *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8 & 0xf0) << 8);
- *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++ & 0x0f) << 12);
- }
- src = src8;
- }
- break;
- case 24:
- while (n--) {
- c = avctx->channels;
- src8 = src + 4 * c;
- while (c--) {
- *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);
- *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);
- }
- src = src8;
- }
- break;
- }
- break;
- }
case AV_CODEC_ID_PCM_LXF:
{
int i;
- const uint8_t *src8;
- dst_int32_t = (int32_t *)s->frame.data[0];
n /= avctx->channels;
- // unpack and de-planarize
- for (i = 0; i < n; i++) {
- for (c = 0, src8 = src + i * 5; c < avctx->channels; c++, src8 += n * 5) {
+ for (c = 0; c < avctx->channels; c++) {
+ dst_int32_t = (int32_t *)frame->extended_data[c];
+ for (i = 0; i < n; i++) {
// 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) {
+ *dst_int32_t++ = (src[2] << 28) |
+ (src[1] << 20) |
+ (src[0] << 12) |
+ ((src[2] & 0x0F) << 8) |
+ src[1];
// 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);
+ *dst_int32_t++ = (src[4] << 24) |
+ (src[3] << 16) |
+ ((src[2] & 0xF0) << 8) |
+ (src[4] << 4) |
+ (src[3] >> 4);
+ src += 5;
}
}
break;
return -1;
}
- *got_frame_ptr = 1;
- *(AVFrame *)data = s->frame;
+ *got_frame_ptr = 1;
return buf_size;
}
-#if CONFIG_ENCODERS
-#define PCM_ENCODER(id_, sample_fmt_, name_, long_name_) \
+#define PCM_ENCODER_0(id_, sample_fmt_, name_, long_name_)
+#define PCM_ENCODER_1(id_, sample_fmt_, name_, long_name_) \
AVCodec ff_ ## name_ ## _encoder = { \
.name = #name_, \
+ .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
.type = AVMEDIA_TYPE_AUDIO, \
- .id = id_, \
+ .id = AV_CODEC_ID_ ## id_, \
.init = pcm_encode_init, \
.encode2 = pcm_encode_frame, \
- .close = pcm_encode_close, \
- .capabilities = CODEC_CAP_VARIABLE_FRAME_SIZE, \
+ .capabilities = AV_CODEC_CAP_VARIABLE_FRAME_SIZE, \
.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_) \
+#define PCM_ENCODER_2(cf, id, sample_fmt, name, long_name) \
+ PCM_ENCODER_ ## cf(id, sample_fmt, name, long_name)
+#define PCM_ENCODER_3(cf, id, sample_fmt, name, long_name) \
+ PCM_ENCODER_2(cf, id, sample_fmt, name, long_name)
+#define PCM_ENCODER(id, sample_fmt, name, long_name) \
+ PCM_ENCODER_3(CONFIG_ ## id ## _ENCODER, id, sample_fmt, name, long_name)
+
+#define PCM_DECODER_0(id, sample_fmt, name, long_name)
+#define PCM_DECODER_1(id_, sample_fmt_, name_, long_name_) \
AVCodec ff_ ## name_ ## _decoder = { \
.name = #name_, \
+ .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
.type = AVMEDIA_TYPE_AUDIO, \
- .id = id_, \
+ .id = AV_CODEC_ID_ ## id_, \
.priv_data_size = sizeof(PCMDecode), \
.init = pcm_decode_init, \
.decode = pcm_decode_frame, \
- .capabilities = CODEC_CAP_DR1, \
+ .capabilities = AV_CODEC_CAP_DR1, \
.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_DECODER_2(cf, id, sample_fmt, name, long_name) \
+ PCM_DECODER_ ## cf(id, sample_fmt, name, long_name)
+#define PCM_DECODER_3(cf, id, sample_fmt, name, long_name) \
+ PCM_DECODER_2(cf, id, sample_fmt, name, long_name)
+#define PCM_DECODER(id, sample_fmt, name, long_name) \
+ PCM_DECODER_3(CONFIG_ ## id ## _DECODER, id, sample_fmt, name, long_name)
#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_)
/* Note: Do not forget to add new entries to the Makefile as well. */
-PCM_CODEC (AV_CODEC_ID_PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law");
-PCM_DECODER(AV_CODEC_ID_PCM_DVD, AV_SAMPLE_FMT_S32, pcm_dvd, "PCM signed 20|24-bit big-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian");
-PCM_DECODER(AV_CODEC_ID_PCM_LXF, AV_SAMPLE_FMT_S32, pcm_lxf, "PCM signed 20-bit little-endian planar");
-PCM_CODEC (AV_CODEC_ID_PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law");
-PCM_CODEC (AV_CODEC_ID_PCM_S8, AV_SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit");
-PCM_CODEC (AV_CODEC_ID_PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian");
-PCM_DECODER(AV_CODEC_ID_PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16, pcm_s16le_planar, "PCM 16-bit little-endian planar");
-PCM_CODEC (AV_CODEC_ID_PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_S24DAUD, AV_SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit");
-PCM_CODEC (AV_CODEC_ID_PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_S32BE, AV_SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_S32LE, AV_SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_U8, AV_SAMPLE_FMT_U8, pcm_u8, "PCM unsigned 8-bit");
-PCM_CODEC (AV_CODEC_ID_PCM_U16BE, AV_SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_U16LE, AV_SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_U24BE, AV_SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian");
-PCM_CODEC (AV_CODEC_ID_PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian");
-PCM_DECODER(AV_CODEC_ID_PCM_ZORK, AV_SAMPLE_FMT_U8, pcm_zork, "PCM Zork");
+PCM_CODEC (PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law");
+PCM_CODEC (PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian");
+PCM_CODEC (PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian");
+PCM_CODEC (PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian");
+PCM_CODEC (PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian");
+PCM_DECODER(PCM_LXF, AV_SAMPLE_FMT_S32P, pcm_lxf, "PCM signed 20-bit little-endian planar");
+PCM_CODEC (PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law");
+PCM_CODEC (PCM_S8, AV_SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit");
+PCM_CODEC (PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian");
+PCM_DECODER(PCM_S16BE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16be_planar, "PCM signed 16-bit big-endian planar");
+PCM_CODEC (PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian");
+PCM_DECODER(PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16P, pcm_s16le_planar, "PCM 16-bit little-endian planar");
+PCM_CODEC (PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian");
+PCM_CODEC (PCM_S24DAUD, AV_SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit");
+PCM_CODEC (PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian");
+PCM_DECODER(PCM_S24LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s24le_planar, "PCM signed 24-bit little-endian planar");
+PCM_CODEC (PCM_S32BE, AV_SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian");
+PCM_CODEC (PCM_S32LE, AV_SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian");
+PCM_DECODER(PCM_S32LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s32le_planar, "PCM signed 32-bit little-endian planar");
+PCM_CODEC (PCM_U8, AV_SAMPLE_FMT_U8, pcm_u8, "PCM unsigned 8-bit");
+PCM_CODEC (PCM_U16BE, AV_SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian");
+PCM_CODEC (PCM_U16LE, AV_SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian");
+PCM_CODEC (PCM_U24BE, AV_SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian");
+PCM_CODEC (PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian");
+PCM_CODEC (PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian");
+PCM_CODEC (PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian");
+PCM_DECODER(PCM_ZORK, AV_SAMPLE_FMT_U8, pcm_zork, "PCM Zork");
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