* 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
*/
* PCM codecs
*/
+#include "libavutil/attributes.h"
#include "avcodec.h"
-#include "libavutil/common.h" /* for av_reverse */
#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 = 1;
- switch(avctx->codec->id) {
- case CODEC_ID_PCM_ALAW:
+ avctx->frame_size = 0;
+ switch (avctx->codec->id) {
+ case AV_CODEC_ID_PCM_ALAW:
pcm_alaw_tableinit();
break;
- case CODEC_ID_PCM_MULAW:
+ case AV_CODEC_ID_PCM_MULAW:
pcm_ulaw_tableinit();
break;
default:
}
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->coded_frame= avcodec_alloc_frame();
- avctx->coded_frame->key_frame= 1;
-
- return 0;
-}
-
-static av_cold int pcm_encode_close(AVCodecContext *avctx)
-{
- av_freep(&avctx->coded_frame);
+ avctx->block_align = avctx->channels * avctx->bits_per_coded_sample / 8;
+ avctx->bit_rate = avctx->block_align * avctx->sample_rate * 8;
return 0;
}
/**
* Write PCM samples macro
- * @param type Datatype of native machine format
+ * @param type Datatype of native machine format
* @param endian bytestream_put_xxx() suffix
- * @param src Source pointer (variable name)
- * @param dst Destination pointer (variable name)
- * @param n Total number of samples (variable name)
- * @param shift Bitshift (bits)
+ * @param src Source pointer (variable name)
+ * @param dst Destination pointer (variable name)
+ * @param n Total number of samples (variable name)
+ * @param shift Bitshift (bits)
* @param offset Sample value offset
*/
-#define ENCODE(type, endian, src, dst, n, shift, offset) \
- samples_##type = (type*)src; \
- for(;n>0;n--) { \
- register type v = (*samples_##type++ >> shift) + offset; \
- bytestream_put_##endian(&dst, v); \
+#define ENCODE(type, endian, src, dst, n, shift, offset) \
+ samples_ ## type = (const type *) src; \
+ for (; n > 0; n--) { \
+ register type v = (*samples_ ## type++ >> shift) + offset; \
+ bytestream_put_ ## endian(&dst, v); \
}
-static int pcm_encode_frame(AVCodecContext *avctx,
- unsigned char *frame, int buf_size, void *data)
+static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+ const AVFrame *frame, int *got_packet_ptr)
{
- int n, sample_size, v;
+ int n, sample_size, v, ret;
const short *samples;
unsigned char *dst;
const uint8_t *srcu8;
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;
- samples = data;
- dst = frame;
+ sample_size = av_get_bits_per_sample(avctx->codec->id) / 8;
+ n = frame->nb_samples * avctx->channels;
+ samples = (const short *)frame->data[0];
- if (avctx->sample_fmt!=avctx->codec->sample_fmts[0]) {
- av_log(avctx, AV_LOG_ERROR, "invalid sample_fmt\n");
- return -1;
+ if ((ret = ff_alloc_packet(avpkt, n * sample_size))) {
+ av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");
+ return ret;
}
+ dst = avpkt->data;
- switch(avctx->codec->id) {
- case CODEC_ID_PCM_U32LE:
+ switch (avctx->codec->id) {
+ case AV_CODEC_ID_PCM_U32LE:
ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000)
break;
- case CODEC_ID_PCM_U32BE:
+ case AV_CODEC_ID_PCM_U32BE:
ENCODE(uint32_t, be32, samples, dst, n, 0, 0x80000000)
break;
- case CODEC_ID_PCM_S24LE:
+ case AV_CODEC_ID_PCM_S24LE:
ENCODE(int32_t, le24, samples, dst, n, 8, 0)
break;
- case CODEC_ID_PCM_S24BE:
+ case AV_CODEC_ID_PCM_S24BE:
ENCODE(int32_t, be24, samples, dst, n, 8, 0)
break;
- case CODEC_ID_PCM_U24LE:
+ case AV_CODEC_ID_PCM_U24LE:
ENCODE(uint32_t, le24, samples, dst, n, 8, 0x800000)
break;
- case CODEC_ID_PCM_U24BE:
+ case AV_CODEC_ID_PCM_U24BE:
ENCODE(uint32_t, be24, samples, dst, n, 8, 0x800000)
break;
- case CODEC_ID_PCM_S24DAUD:
- for(;n>0;n--) {
- uint32_t tmp = av_reverse[(*samples >> 8) & 0xff] +
- (av_reverse[*samples & 0xff] << 8);
+ case AV_CODEC_ID_PCM_S24DAUD:
+ for (; n > 0; n--) {
+ 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++;
}
break;
- case CODEC_ID_PCM_U16LE:
+ case AV_CODEC_ID_PCM_U16LE:
ENCODE(uint16_t, le16, samples, dst, n, 0, 0x8000)
break;
- case CODEC_ID_PCM_U16BE:
+ case AV_CODEC_ID_PCM_U16BE:
ENCODE(uint16_t, be16, samples, dst, n, 0, 0x8000)
break;
- case CODEC_ID_PCM_S8:
- srcu8= data;
- for(;n>0;n--) {
- v = *srcu8++;
+ case AV_CODEC_ID_PCM_S8:
+ srcu8 = frame->data[0];
+ for (; n > 0; n--) {
+ v = *srcu8++;
*dst++ = v - 128;
}
break;
#if HAVE_BIGENDIAN
- case CODEC_ID_PCM_F64LE:
+ case AV_CODEC_ID_PCM_F64LE:
ENCODE(int64_t, le64, samples, dst, n, 0, 0)
break;
- case CODEC_ID_PCM_S32LE:
- case CODEC_ID_PCM_F32LE:
+ case AV_CODEC_ID_PCM_S32LE:
+ case AV_CODEC_ID_PCM_F32LE:
ENCODE(int32_t, le32, samples, dst, n, 0, 0)
break;
- case CODEC_ID_PCM_S16LE:
+ case AV_CODEC_ID_PCM_S16LE:
ENCODE(int16_t, le16, samples, dst, n, 0, 0)
break;
- case CODEC_ID_PCM_F64BE:
- case CODEC_ID_PCM_F32BE:
- case CODEC_ID_PCM_S32BE:
- case CODEC_ID_PCM_S16BE:
+ case AV_CODEC_ID_PCM_F64BE:
+ case AV_CODEC_ID_PCM_F32BE:
+ case AV_CODEC_ID_PCM_S32BE:
+ case AV_CODEC_ID_PCM_S16BE:
#else
- case CODEC_ID_PCM_F64BE:
+ case AV_CODEC_ID_PCM_F64BE:
ENCODE(int64_t, be64, samples, dst, n, 0, 0)
break;
- case CODEC_ID_PCM_F32BE:
- case CODEC_ID_PCM_S32BE:
+ case AV_CODEC_ID_PCM_F32BE:
+ case AV_CODEC_ID_PCM_S32BE:
ENCODE(int32_t, be32, samples, dst, n, 0, 0)
break;
- case CODEC_ID_PCM_S16BE:
+ case AV_CODEC_ID_PCM_S16BE:
ENCODE(int16_t, be16, samples, dst, n, 0, 0)
break;
- case CODEC_ID_PCM_F64LE:
- case CODEC_ID_PCM_F32LE:
- case CODEC_ID_PCM_S32LE:
- case CODEC_ID_PCM_S16LE:
+ case AV_CODEC_ID_PCM_F64LE:
+ case AV_CODEC_ID_PCM_F32LE:
+ case AV_CODEC_ID_PCM_S32LE:
+ case AV_CODEC_ID_PCM_S16LE:
#endif /* HAVE_BIGENDIAN */
- case CODEC_ID_PCM_U8:
- memcpy(dst, samples, n*sample_size);
- dst += n*sample_size;
- break;
- case CODEC_ID_PCM_ZORK:
- for(;n>0;n--) {
- v= *samples++ >> 8;
- if(v<0) v = -v;
- else v+= 128;
- *dst++ = v;
- }
+ case AV_CODEC_ID_PCM_U8:
+ memcpy(dst, samples, n * sample_size);
+ dst += n * sample_size;
break;
- case CODEC_ID_PCM_ALAW:
- for(;n>0;n--) {
- v = *samples++;
+ case AV_CODEC_ID_PCM_ALAW:
+ for (; n > 0; n--) {
+ v = *samples++;
*dst++ = linear_to_alaw[(v + 32768) >> 2];
}
break;
- case CODEC_ID_PCM_MULAW:
- for(;n>0;n--) {
- v = *samples++;
+ case AV_CODEC_ID_PCM_MULAW:
+ for (; n > 0; n--) {
+ v = *samples++;
*dst++ = linear_to_ulaw[(v + 32768) >> 2];
}
break;
default:
return -1;
}
- //avctx->frame_size = (dst - frame) / (sample_size * avctx->channels);
- return dst - frame;
+ *got_packet_ptr = 1;
+ return 0;
}
typedef struct PCMDecode {
- short table[256];
+ short table[256];
} PCMDecode;
-static av_cold int pcm_decode_init(AVCodecContext * avctx)
+static av_cold int pcm_decode_init(AVCodecContext *avctx)
{
PCMDecode *s = avctx->priv_data;
int i;
- switch(avctx->codec->id) {
- case CODEC_ID_PCM_ALAW:
- for(i=0;i<256;i++)
+ if (avctx->channels <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n");
+ return AVERROR(EINVAL);
+ }
+
+ switch (avctx->codec->id) {
+ case AV_CODEC_ID_PCM_ALAW:
+ for (i = 0; i < 256; i++)
s->table[i] = alaw2linear(i);
break;
- case CODEC_ID_PCM_MULAW:
- for(i=0;i<256;i++)
+ case AV_CODEC_ID_PCM_MULAW:
+ for (i = 0; i < 256; i++)
s->table[i] = ulaw2linear(i);
break;
default:
/**
* Read PCM samples macro
- * @param type Datatype of native machine format
+ * @param size Data size of native machine format
* @param endian bytestream_get_xxx() endian suffix
- * @param src Source pointer (variable name)
- * @param dst Destination pointer (variable name)
- * @param n Total number of samples (variable name)
- * @param shift Bitshift (bits)
+ * @param src Source pointer (variable name)
+ * @param dst Destination pointer (variable name)
+ * @param n Total number of samples (variable name)
+ * @param shift Bitshift (bits)
* @param offset Sample value offset
*/
-#define DECODE(type, endian, src, dst, n, shift, offset) \
- dst_##type = (type*)dst; \
- for(;n>0;n--) { \
- register type v = bytestream_get_##endian(&src); \
- *dst_##type++ = (v - offset) << shift; \
- } \
- dst = (short*)dst_##type;
-
-static int pcm_decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- AVPacket *avpkt)
-{
- const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
- PCMDecode *s = avctx->priv_data;
- int sample_size, c, n, i;
- short *samples;
- const uint8_t *src, *src8, *src2[MAX_CHANNELS];
- uint8_t *dstu8;
- int16_t *dst_int16_t;
- int32_t *dst_int32_t;
- int64_t *dst_int64_t;
- uint16_t *dst_uint16_t;
- uint32_t *dst_uint32_t;
-
- samples = data;
- src = buf;
-
- if (avctx->sample_fmt!=avctx->codec->sample_fmts[0]) {
- av_log(avctx, AV_LOG_ERROR, "invalid sample_fmt\n");
- return -1;
+#define DECODE(size, endian, src, dst, n, shift, offset) \
+ for (; n > 0; n--) { \
+ uint ## size ## _t v = bytestream_get_ ## endian(&src); \
+ AV_WN ## size ## A(dst, (v - offset) << shift); \
+ dst += size / 8; \
}
- if(avctx->channels <= 0 || avctx->channels > MAX_CHANNELS){
- av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n");
- return -1;
+#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;
- sample_size = av_get_bits_per_sample(avctx->codec_id)/8;
+ sample_size = av_get_bits_per_sample(avctx->codec_id) / 8;
- /* av_get_bits_per_sample returns 0 for CODEC_ID_PCM_DVD */
- 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)
+ /* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */
+ samples_per_block = 1;
+ if (avctx->codec_id == AV_CODEC_ID_PCM_LXF) {
/* we process 40-bit blocks per channel for LXF */
- sample_size = 5;
+ samples_per_block = 2;
+ sample_size = 5;
+ }
if (sample_size == 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid sample_size\n");
n = avctx->channels * sample_size;
- if(n && buf_size % n){
+ if (n && buf_size % n) {
if (buf_size < n) {
av_log(avctx, AV_LOG_ERROR, "invalid PCM packet\n");
return -1;
- }else
+ } else
buf_size -= buf_size % n;
}
- buf_size= FFMIN(buf_size, *data_size/2);
- *data_size=0;
+ n = buf_size / sample_size;
- n = buf_size/sample_size;
+ /* get output buffer */
+ 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 = frame->data[0];
- switch(avctx->codec->id) {
- case CODEC_ID_PCM_U32LE:
- DECODE(uint32_t, le32, src, samples, n, 0, 0x80000000)
+ switch (avctx->codec->id) {
+ case AV_CODEC_ID_PCM_U32LE:
+ DECODE(32, le32, src, samples, n, 0, 0x80000000)
break;
- case CODEC_ID_PCM_U32BE:
- DECODE(uint32_t, be32, src, samples, n, 0, 0x80000000)
+ case AV_CODEC_ID_PCM_U32BE:
+ DECODE(32, be32, src, samples, n, 0, 0x80000000)
break;
- case CODEC_ID_PCM_S24LE:
- DECODE(int32_t, le24, src, samples, n, 8, 0)
+ case AV_CODEC_ID_PCM_S24LE:
+ DECODE(32, le24, src, samples, n, 8, 0)
break;
- case CODEC_ID_PCM_S24BE:
- DECODE(int32_t, be24, src, samples, n, 8, 0)
+ case AV_CODEC_ID_PCM_S24BE:
+ DECODE(32, be24, src, samples, n, 8, 0)
break;
- case CODEC_ID_PCM_U24LE:
- DECODE(uint32_t, le24, src, samples, n, 8, 0x800000)
+ case AV_CODEC_ID_PCM_U24LE:
+ DECODE(32, le24, src, samples, n, 8, 0x800000)
break;
- case CODEC_ID_PCM_U24BE:
- DECODE(uint32_t, be24, src, samples, n, 8, 0x800000)
+ case AV_CODEC_ID_PCM_U24BE:
+ DECODE(32, be24, src, samples, n, 8, 0x800000)
break;
- case CODEC_ID_PCM_S24DAUD:
- for(;n>0;n--) {
- uint32_t v = bytestream_get_be24(&src);
- v >>= 4; // sync flags are here
- *samples++ = av_reverse[(v >> 8) & 0xff] +
- (av_reverse[v & 0xff] << 8);
+ case AV_CODEC_ID_PCM_S24DAUD:
+ for (; n > 0; n--) {
+ uint32_t v = bytestream_get_be24(&src);
+ v >>= 4; // sync flags are here
+ AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] +
+ (ff_reverse[v & 0xff] << 8));
+ samples += 2;
}
break;
- case CODEC_ID_PCM_S16LE_PLANAR:
- 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++)
- *samples++ = bytestream_get_le16(&src2[c]);
- src = src2[avctx->channels-1];
- break;
- case CODEC_ID_PCM_U16LE:
- DECODE(uint16_t, le16, src, samples, n, 0, 0x8000)
- break;
- case CODEC_ID_PCM_U16BE:
- DECODE(uint16_t, be16, src, samples, n, 0, 0x8000)
- break;
- case CODEC_ID_PCM_S8:
- dstu8= (uint8_t*)samples;
- for(;n>0;n--) {
- *dstu8++ = *src++ + 128;
- }
- samples= (short*)dstu8;
+ case AV_CODEC_ID_PCM_S16BE_PLANAR:
+ DECODE_PLANAR(16, be16, src, samples, n, 0, 0);
+ break;
+ case AV_CODEC_ID_PCM_S16LE_PLANAR:
+ 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;
+ case AV_CODEC_ID_PCM_U16BE:
+ DECODE(16, be16, src, samples, n, 0, 0x8000)
+ break;
+ case AV_CODEC_ID_PCM_S8:
+ for (; n > 0; n--)
+ *samples++ = *src++ + 128;
break;
#if HAVE_BIGENDIAN
- case CODEC_ID_PCM_F64LE:
- DECODE(int64_t, le64, src, samples, n, 0, 0)
+ case AV_CODEC_ID_PCM_F64LE:
+ DECODE(64, le64, src, samples, n, 0, 0)
break;
- case CODEC_ID_PCM_S32LE:
- case CODEC_ID_PCM_F32LE:
- DECODE(int32_t, le32, src, samples, n, 0, 0)
+ case AV_CODEC_ID_PCM_S32LE:
+ case AV_CODEC_ID_PCM_F32LE:
+ DECODE(32, le32, src, samples, n, 0, 0)
break;
- case CODEC_ID_PCM_S16LE:
- DECODE(int16_t, le16, src, samples, n, 0, 0)
+ case AV_CODEC_ID_PCM_S16LE:
+ DECODE(16, le16, src, samples, n, 0, 0)
break;
- case CODEC_ID_PCM_F64BE:
- case CODEC_ID_PCM_F32BE:
- case CODEC_ID_PCM_S32BE:
- case CODEC_ID_PCM_S16BE:
+ case AV_CODEC_ID_PCM_F64BE:
+ case AV_CODEC_ID_PCM_F32BE:
+ case AV_CODEC_ID_PCM_S32BE:
+ case AV_CODEC_ID_PCM_S16BE:
#else
- case CODEC_ID_PCM_F64BE:
- DECODE(int64_t, be64, src, samples, n, 0, 0)
+ case AV_CODEC_ID_PCM_F64BE:
+ DECODE(64, be64, src, samples, n, 0, 0)
break;
- case CODEC_ID_PCM_F32BE:
- case CODEC_ID_PCM_S32BE:
- DECODE(int32_t, be32, src, samples, n, 0, 0)
+ case AV_CODEC_ID_PCM_F32BE:
+ case AV_CODEC_ID_PCM_S32BE:
+ DECODE(32, be32, src, samples, n, 0, 0)
break;
- case CODEC_ID_PCM_S16BE:
- DECODE(int16_t, be16, src, samples, n, 0, 0)
+ case AV_CODEC_ID_PCM_S16BE:
+ DECODE(16, be16, src, samples, n, 0, 0)
break;
- case CODEC_ID_PCM_F64LE:
- case CODEC_ID_PCM_F32LE:
- case CODEC_ID_PCM_S32LE:
- case CODEC_ID_PCM_S16LE:
+ case AV_CODEC_ID_PCM_F64LE:
+ case AV_CODEC_ID_PCM_F32LE:
+ case AV_CODEC_ID_PCM_S32LE:
+ case AV_CODEC_ID_PCM_S16LE:
#endif /* HAVE_BIGENDIAN */
- case CODEC_ID_PCM_U8:
- memcpy(samples, src, n*sample_size);
- src += n*sample_size;
- samples = (short*)((uint8_t*)data + n*sample_size);
- break;
- case CODEC_ID_PCM_ZORK:
- for(;n>0;n--) {
- int x= *src++;
- if(x&128) x-= 128;
- else x = -x;
- *samples++ = x << 8;
+ case AV_CODEC_ID_PCM_U8:
+ memcpy(samples, src, n * sample_size);
+ break;
+ case AV_CODEC_ID_PCM_ZORK:
+ for (; n > 0; n--) {
+ int v = *src++;
+ if (v < 128)
+ v = 128 - v;
+ *samples++ = v;
}
break;
- case CODEC_ID_PCM_ALAW:
- case CODEC_ID_PCM_MULAW:
- for(;n>0;n--) {
- *samples++ = s->table[*src++];
- }
- break;
- case CODEC_ID_PCM_DVD:
- dst_int32_t = data;
- 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;
- default:
- av_log(avctx, AV_LOG_ERROR, "PCM DVD unsupported sample depth\n");
- return -1;
- break;
+ case AV_CODEC_ID_PCM_ALAW:
+ case AV_CODEC_ID_PCM_MULAW:
+ for (; n > 0; n--) {
+ AV_WN16A(samples, s->table[*src++]);
+ samples += 2;
}
- samples = (short *) dst_int32_t;
break;
- case CODEC_ID_PCM_LXF:
- dst_int32_t = data;
+ case AV_CODEC_ID_PCM_LXF:
+ {
+ int i;
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);
+ 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++ = (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++ = (src[4] << 24) |
+ (src[3] << 16) |
+ ((src[2] & 0xF0) << 8) |
+ (src[4] << 4) |
+ (src[3] >> 4);
+ src += 5;
}
}
- src += n * avctx->channels * 5;
- samples = (short *) dst_int32_t;
break;
+ }
default:
return -1;
}
- *data_size = (uint8_t *)samples - (uint8_t *)data;
- return src - buf;
+
+ *got_frame_ptr = 1;
+
+ return buf_size;
}
-#if CONFIG_ENCODERS
-#define PCM_ENCODER(id_,sample_fmt_,name_,long_name_) \
-AVCodec 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 = #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_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 = AV_CODEC_ID_ ## id_, \
+ .init = pcm_encode_init, \
+ .encode2 = pcm_encode_frame, \
+ .capabilities = AV_CODEC_CAP_VARIABLE_FRAME_SIZE, \
+ .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
+ AV_SAMPLE_FMT_NONE }, \
+}
+
+#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 = AV_CODEC_ID_ ## id_, \
+ .priv_data_size = sizeof(PCMDecode), \
+ .init = pcm_decode_init, \
+ .decode = pcm_decode_frame, \
+ .capabilities = AV_CODEC_CAP_DR1, \
+ .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
+ AV_SAMPLE_FMT_NONE }, \
+}
+
+#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_)
+#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 (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");
+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");
projects / ffmpeg / blobdiff