X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fpcm.c;h=959c50b27925604b16bb32c208bc69fd93a28610;hb=ea7ee4b4e381e0fa731458de0cbf740430eeb013;hp=bff8aaf4c47eb7e2e405278dee71389f403a6323;hpb=ff4ec49e648bead601b3b8c618f6d19f3548d368;p=ffmpeg diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c index bff8aaf4c47..959c50b2792 100644 --- a/libavcodec/pcm.c +++ b/libavcodec/pcm.c @@ -1,370 +1,518 @@ /* * PCM codecs - * Copyright (c) 2001 Fabrice Bellard. + * Copyright (c) 2001 Fabrice Bellard * - * This library is free software; you can redistribute it and/or + * This file is part of Libav. + * + * 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 of the License, or (at your option) any later version. + * version 2.1 of the License, or (at your option) any later version. * - * This library 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 this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ -#include "avcodec.h" - -/* from g711.c by SUN microsystems (unrestricted use) */ - -#define SIGN_BIT (0x80) /* Sign bit for a A-law byte. */ -#define QUANT_MASK (0xf) /* Quantization field mask. */ -#define NSEGS (8) /* Number of A-law segments. */ -#define SEG_SHIFT (4) /* Left shift for segment number. */ -#define SEG_MASK (0x70) /* Segment field mask. */ -#define BIAS (0x84) /* Bias for linear code. */ - -/* - * alaw2linear() - Convert an A-law value to 16-bit linear PCM - * +/** + * @file + * PCM codecs */ -static int alaw2linear(unsigned char a_val) -{ - int t; - int seg; - - a_val ^= 0x55; - - t = (a_val & QUANT_MASK) << 4; - seg = ((unsigned)a_val & SEG_MASK) >> SEG_SHIFT; - switch (seg) { - case 0: - t += 8; - break; - case 1: - t += 0x108; - break; - default: - t += 0x108; - t <<= seg - 1; - } - return ((a_val & SIGN_BIT) ? t : -t); -} - -static int ulaw2linear(unsigned char u_val) -{ - int t; - - /* Complement to obtain normal u-law value. */ - u_val = ~u_val; - - /* - * Extract and bias the quantization bits. Then - * shift up by the segment number and subtract out the bias. - */ - t = ((u_val & QUANT_MASK) << 3) + BIAS; - t <<= ((unsigned)u_val & SEG_MASK) >> SEG_SHIFT; - return ((u_val & SIGN_BIT) ? (BIAS - t) : (t - BIAS)); -} - -/* 16384 entries per table */ -static UINT8 *linear_to_alaw = NULL; -static int linear_to_alaw_ref = 0; - -static UINT8 *linear_to_ulaw = NULL; -static int linear_to_ulaw_ref = 0; - -static void build_xlaw_table(UINT8 *linear_to_xlaw, - int (*xlaw2linear)(unsigned char), - int mask) -{ - int i, j, v, v1, v2; - - j = 0; - for(i=0;i<128;i++) { - if (i != 127) { - v1 = xlaw2linear(i ^ mask); - v2 = xlaw2linear((i + 1) ^ mask); - v = (v1 + v2 + 4) >> 3; - } else { - v = 8192; - } - for(;j 0) - linear_to_xlaw[8192 - j] = (i ^ (mask ^ 0x80)); - } - } - linear_to_xlaw[0] = linear_to_xlaw[1]; -} +#include "libavutil/attributes.h" +#include "avcodec.h" +#include "bytestream.h" +#include "internal.h" +#include "mathops.h" +#include "pcm_tablegen.h" -static int encode_init(AVCodecContext *avctx) +static av_cold int pcm_encode_init(AVCodecContext *avctx) { - avctx->frame_size = 1; - switch(avctx->codec->id) { - case CODEC_ID_PCM_ALAW: - if (linear_to_alaw_ref == 0) { - linear_to_alaw = av_malloc(16384); - if (!linear_to_alaw) - return -1; - build_xlaw_table(linear_to_alaw, alaw2linear, 0xd5); - } - linear_to_alaw_ref++; - break; - case CODEC_ID_PCM_MULAW: - if (linear_to_ulaw_ref == 0) { - linear_to_ulaw = av_malloc(16384); - if (!linear_to_ulaw) - return -1; - build_xlaw_table(linear_to_ulaw, ulaw2linear, 0xff); - } - linear_to_ulaw_ref++; + avctx->frame_size = 0; + switch (avctx->codec->id) { + case AV_CODEC_ID_PCM_ALAW: + pcm_alaw_tableinit(); + break; + case AV_CODEC_ID_PCM_MULAW: + pcm_ulaw_tableinit(); break; default: break; } + + 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; + return 0; } -static int encode_close(AVCodecContext *avctx) -{ - switch(avctx->codec->id) { - case CODEC_ID_PCM_ALAW: - if (--linear_to_alaw_ref == 0) - av_free(linear_to_alaw); - break; - case CODEC_ID_PCM_MULAW: - if (--linear_to_ulaw_ref == 0) - av_free(linear_to_ulaw); - break; - default: - /* nothing to free */ - break; +/** + * Write PCM samples macro + * @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 offset Sample value offset + */ +#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); \ } - return 0; -} -static int 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; - short *samples; + int n, sample_size, v, ret; + const short *samples; unsigned char *dst; + 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; - switch(avctx->codec->id) { - case CODEC_ID_PCM_S16LE: - case CODEC_ID_PCM_S16BE: - case CODEC_ID_PCM_U16LE: - case CODEC_ID_PCM_U16BE: - sample_size = 2; + sample_size = av_get_bits_per_sample(avctx->codec->id) / 8; + n = frame->nb_samples * avctx->channels; + samples = (const short *)frame->data[0]; + + 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 AV_CODEC_ID_PCM_U32LE: + ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000) break; - default: - sample_size = 1; + case AV_CODEC_ID_PCM_U32BE: + ENCODE(uint32_t, be32, samples, dst, n, 0, 0x80000000) break; - } - n = buf_size / sample_size; - samples = data; - dst = frame; - - switch(avctx->codec->id) { - case CODEC_ID_PCM_S16LE: - for(;n>0;n--) { - v = *samples++; - dst[0] = v & 0xff; - dst[1] = v >> 8; - dst += 2; - } + case AV_CODEC_ID_PCM_S24LE: + ENCODE(int32_t, le24, samples, dst, n, 8, 0) break; - case CODEC_ID_PCM_S16BE: - for(;n>0;n--) { - v = *samples++; - dst[0] = v >> 8; - dst[1] = v; - dst += 2; - } + case AV_CODEC_ID_PCM_S24BE: + ENCODE(int32_t, be24, samples, dst, n, 8, 0) break; - case CODEC_ID_PCM_U16LE: - for(;n>0;n--) { - v = *samples++; - v += 0x8000; - dst[0] = v & 0xff; - dst[1] = v >> 8; - dst += 2; - } + case AV_CODEC_ID_PCM_U24LE: + ENCODE(uint32_t, le24, samples, dst, n, 8, 0x800000) break; - case CODEC_ID_PCM_U16BE: - for(;n>0;n--) { - v = *samples++; - v += 0x8000; - dst[0] = v >> 8; - dst[1] = v; - dst += 2; - } + case AV_CODEC_ID_PCM_U24BE: + ENCODE(uint32_t, be24, samples, dst, n, 8, 0x800000) break; - case CODEC_ID_PCM_S8: - for(;n>0;n--) { - v = *samples++; - dst[0] = (v + 128) >> 8; - dst++; + 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_U8: - for(;n>0;n--) { - v = *samples++; - dst[0] = ((v + 128) >> 8) + 128; - dst++; + case AV_CODEC_ID_PCM_U16LE: + ENCODE(uint16_t, le16, samples, dst, n, 0, 0x8000) + break; + case AV_CODEC_ID_PCM_U16BE: + ENCODE(uint16_t, be16, samples, dst, n, 0, 0x8000) + break; + case AV_CODEC_ID_PCM_S8: + srcu8 = frame->data[0]; + for (; n > 0; n--) { + v = *srcu8++; + *dst++ = v - 128; } break; - case CODEC_ID_PCM_ALAW: - for(;n>0;n--) { - v = *samples++; - dst[0] = linear_to_alaw[(v + 32768) >> 2]; - dst++; +#if HAVE_BIGENDIAN + case AV_CODEC_ID_PCM_F64LE: + ENCODE(int64_t, le64, samples, dst, n, 0, 0) + break; + case AV_CODEC_ID_PCM_S32LE: + case AV_CODEC_ID_PCM_F32LE: + ENCODE(int32_t, le32, samples, dst, n, 0, 0) + break; + case AV_CODEC_ID_PCM_S16LE: + ENCODE(int16_t, le16, samples, dst, n, 0, 0) + break; + 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 AV_CODEC_ID_PCM_F64BE: + ENCODE(int64_t, be64, samples, dst, n, 0, 0) + break; + case AV_CODEC_ID_PCM_F32BE: + case AV_CODEC_ID_PCM_S32BE: + ENCODE(int32_t, be32, samples, dst, n, 0, 0) + break; + case AV_CODEC_ID_PCM_S16BE: + ENCODE(int16_t, be16, samples, dst, n, 0, 0) + break; + 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 AV_CODEC_ID_PCM_U8: + memcpy(dst, samples, n * sample_size); + dst += n * sample_size; + break; + 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++; - dst[0] = linear_to_ulaw[(v + 32768) >> 2]; - dst++; + case AV_CODEC_ID_PCM_MULAW: + for (; n > 0; n--) { + v = *samples++; + *dst++ = linear_to_ulaw[(v + 32768) >> 2]; } break; default: return -1; } - avctx->key_frame = 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 int 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: break; } + + 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; } -static int decode_frame(AVCodecContext *avctx, - void *data, int *data_size, - UINT8 *buf, int buf_size) +/** + * Read PCM samples macro + * @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 offset Sample value offset + */ +#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 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) { - PCMDecode *s = avctx->priv_data; - int n; - short *samples; - UINT8 *src; - - samples = data; - src = buf; - - switch(avctx->codec->id) { - case CODEC_ID_PCM_S16LE: - n = buf_size >> 1; - for(;n>0;n--) { - *samples++ = src[0] | (src[1] << 8); - src += 2; - } + 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; + + /* 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 */ + samples_per_block = 2; + 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; + + if (n && buf_size % n) { + if (buf_size < n) { + av_log(avctx, AV_LOG_ERROR, "invalid PCM packet\n"); + return -1; + } else + buf_size -= buf_size % n; + } + + 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 AV_CODEC_ID_PCM_U32LE: + DECODE(32, le32, src, samples, n, 0, 0x80000000) break; - case CODEC_ID_PCM_S16BE: - n = buf_size >> 1; - for(;n>0;n--) { - *samples++ = (src[0] << 8) | src[1]; - src += 2; - } + case AV_CODEC_ID_PCM_U32BE: + DECODE(32, be32, src, samples, n, 0, 0x80000000) break; - case CODEC_ID_PCM_U16LE: - n = buf_size >> 1; - for(;n>0;n--) { - *samples++ = (src[0] | (src[1] << 8)) - 0x8000; - src += 2; - } + case AV_CODEC_ID_PCM_S24LE: + DECODE(32, le24, src, samples, n, 8, 0) + break; + case AV_CODEC_ID_PCM_S24BE: + DECODE(32, be24, src, samples, n, 8, 0) + break; + case AV_CODEC_ID_PCM_U24LE: + DECODE(32, le24, src, samples, n, 8, 0x800000) + break; + case AV_CODEC_ID_PCM_U24BE: + DECODE(32, be24, src, samples, n, 8, 0x800000) break; - case CODEC_ID_PCM_U16BE: - n = buf_size >> 1; - for(;n>0;n--) { - *samples++ = ((src[0] << 8) | src[1]) - 0x8000; - src += 2; + 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_S8: - n = buf_size; - for(;n>0;n--) { - *samples++ = src[0] << 8; - src++; + 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 AV_CODEC_ID_PCM_F64LE: + DECODE(64, le64, src, samples, n, 0, 0) + break; + case AV_CODEC_ID_PCM_S32LE: + case AV_CODEC_ID_PCM_F32LE: + DECODE(32, le32, src, samples, n, 0, 0) + break; + case AV_CODEC_ID_PCM_S16LE: + DECODE(16, le16, src, samples, n, 0, 0) + break; + 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 AV_CODEC_ID_PCM_F64BE: + DECODE(64, be64, src, samples, n, 0, 0) + break; + case AV_CODEC_ID_PCM_F32BE: + case AV_CODEC_ID_PCM_S32BE: + DECODE(32, be32, src, samples, n, 0, 0) + break; + case AV_CODEC_ID_PCM_S16BE: + DECODE(16, be16, src, samples, n, 0, 0) + break; + 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 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_U8: - n = buf_size; - for(;n>0;n--) { - *samples++ = ((int)src[0] - 128) << 8; - src++; + case AV_CODEC_ID_PCM_ALAW: + case AV_CODEC_ID_PCM_MULAW: + for (; n > 0; n--) { + AV_WN16A(samples, s->table[*src++]); + samples += 2; } break; - case CODEC_ID_PCM_ALAW: - case CODEC_ID_PCM_MULAW: - n = buf_size; - for(;n>0;n--) { - *samples++ = s->table[src[0]]; - src++; + case AV_CODEC_ID_PCM_LXF: + { + int i; + n /= avctx->channels; + 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; + } } break; + } default: - *data_size = 0; return -1; } - *data_size = (UINT8 *)samples - (UINT8 *)data; - return src - buf; + + *got_frame_ptr = 1; + + return buf_size; } -#define PCM_CODEC(id, name) \ -AVCodec name ## _encoder = { \ - #name, \ - CODEC_TYPE_AUDIO, \ - id, \ - 0, \ - encode_init, \ - encode_frame, \ - encode_close, \ - NULL, \ -}; \ -AVCodec name ## _decoder = { \ - #name, \ - CODEC_TYPE_AUDIO, \ - id, \ - sizeof(PCMDecode), \ - decode_init, \ - NULL, \ - NULL, \ - decode_frame, \ -}; - -PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le); -PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be); -PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le); -PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be); -PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8); -PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8); -PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw); -PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw); +#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_) + +/* Note: Do not forget to add new entries to the Makefile as well. */ +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");