#include "libavutil/crc.h"
#include "libavutil/md5.h"
+#include "libavutil/opt.h"
#include "avcodec.h"
#include "get_bits.h"
#include "golomb.h"
typedef struct CompressionOptions {
int compression_level;
int block_time_ms;
- enum AVLPCType lpc_type;
+ enum FFLPCType lpc_type;
int lpc_passes;
int lpc_coeff_precision;
int min_prediction_order;
} FlacFrame;
typedef struct FlacEncodeContext {
+ AVClass *class;
PutBitContext pb;
int channels;
int samplerate;
av_log(avctx, AV_LOG_DEBUG, " compression: %d\n", opt->compression_level);
switch (opt->lpc_type) {
- case AV_LPC_TYPE_NONE:
+ case FF_LPC_TYPE_NONE:
av_log(avctx, AV_LOG_DEBUG, " lpc type: None\n");
break;
- case AV_LPC_TYPE_FIXED:
+ case FF_LPC_TYPE_FIXED:
av_log(avctx, AV_LOG_DEBUG, " lpc type: Fixed pre-defined coefficients\n");
break;
- case AV_LPC_TYPE_LEVINSON:
+ case FF_LPC_TYPE_LEVINSON:
av_log(avctx, AV_LOG_DEBUG, " lpc type: Levinson-Durbin recursion with Welch window\n");
break;
- case AV_LPC_TYPE_CHOLESKY:
+ case FF_LPC_TYPE_CHOLESKY:
av_log(avctx, AV_LOG_DEBUG, " lpc type: Cholesky factorization, %d pass%s\n",
opt->lpc_passes, opt->lpc_passes == 1 ? "" : "es");
break;
s->options.block_time_ms = ((int[]){ 27, 27, 27,105,105,105,105,105,105,105,105,105,105})[level];
- s->options.lpc_type = ((int[]){ AV_LPC_TYPE_FIXED, AV_LPC_TYPE_FIXED, AV_LPC_TYPE_FIXED,
- AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON,
- AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON,
- AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON, AV_LPC_TYPE_LEVINSON,
- AV_LPC_TYPE_LEVINSON})[level];
+ if (s->options.lpc_type == FF_LPC_TYPE_DEFAULT)
+ s->options.lpc_type = ((int[]){ FF_LPC_TYPE_FIXED, FF_LPC_TYPE_FIXED, FF_LPC_TYPE_FIXED,
+ FF_LPC_TYPE_LEVINSON, FF_LPC_TYPE_LEVINSON, FF_LPC_TYPE_LEVINSON,
+ FF_LPC_TYPE_LEVINSON, FF_LPC_TYPE_LEVINSON, FF_LPC_TYPE_LEVINSON,
+ FF_LPC_TYPE_LEVINSON, FF_LPC_TYPE_LEVINSON, FF_LPC_TYPE_LEVINSON,
+ FF_LPC_TYPE_LEVINSON})[level];
s->options.min_prediction_order = ((int[]){ 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1})[level];
s->options.max_prediction_order = ((int[]){ 3, 4, 4, 6, 8, 8, 8, 8, 12, 12, 12, 32, 32})[level];
- s->options.prediction_order_method = ((int[]){ ORDER_METHOD_EST, ORDER_METHOD_EST, ORDER_METHOD_EST,
- ORDER_METHOD_EST, ORDER_METHOD_EST, ORDER_METHOD_EST,
- ORDER_METHOD_4LEVEL, ORDER_METHOD_LOG, ORDER_METHOD_4LEVEL,
- ORDER_METHOD_LOG, ORDER_METHOD_SEARCH, ORDER_METHOD_LOG,
- ORDER_METHOD_SEARCH})[level];
+ if (s->options.prediction_order_method < 0)
+ s->options.prediction_order_method = ((int[]){ ORDER_METHOD_EST, ORDER_METHOD_EST, ORDER_METHOD_EST,
+ ORDER_METHOD_EST, ORDER_METHOD_EST, ORDER_METHOD_EST,
+ ORDER_METHOD_4LEVEL, ORDER_METHOD_LOG, ORDER_METHOD_4LEVEL,
+ ORDER_METHOD_LOG, ORDER_METHOD_SEARCH, ORDER_METHOD_LOG,
+ ORDER_METHOD_SEARCH})[level];
- s->options.min_partition_order = ((int[]){ 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})[level];
- s->options.max_partition_order = ((int[]){ 2, 2, 3, 3, 3, 8, 8, 8, 8, 8, 8, 8, 8})[level];
+ if (s->options.min_partition_order > s->options.max_partition_order) {
+ av_log(avctx, AV_LOG_ERROR, "invalid partition orders: min=%d max=%d\n",
+ s->options.min_partition_order, s->options.max_partition_order);
+ return AVERROR(EINVAL);
+ }
+ if (s->options.min_partition_order < 0)
+ s->options.min_partition_order = ((int[]){ 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})[level];
+ if (s->options.max_partition_order < 0)
+ s->options.max_partition_order = ((int[]){ 2, 2, 3, 3, 3, 8, 8, 8, 8, 8, 8, 8, 8})[level];
/* set compression option overrides from AVCodecContext */
- if (avctx->lpc_type > AV_LPC_TYPE_DEFAULT) {
- if (avctx->lpc_type > AV_LPC_TYPE_CHOLESKY) {
+#if FF_API_FLAC_GLOBAL_OPTS
+ if (avctx->lpc_type > FF_LPC_TYPE_DEFAULT) {
+ if (avctx->lpc_type > FF_LPC_TYPE_CHOLESKY) {
av_log(avctx, AV_LOG_ERROR, "unknown lpc type: %d\n", avctx->lpc_type);
return -1;
}
s->options.lpc_type = avctx->lpc_type;
- if (s->options.lpc_type == AV_LPC_TYPE_CHOLESKY) {
+ if (s->options.lpc_type == FF_LPC_TYPE_CHOLESKY) {
if (avctx->lpc_passes < 0) {
// default number of passes for Cholesky
s->options.lpc_passes = 2;
}
}
}
+#endif
- if (s->options.lpc_type == AV_LPC_TYPE_NONE) {
+ if (s->options.lpc_type == FF_LPC_TYPE_NONE) {
s->options.min_prediction_order = 0;
} else if (avctx->min_prediction_order >= 0) {
- if (s->options.lpc_type == AV_LPC_TYPE_FIXED) {
+ if (s->options.lpc_type == FF_LPC_TYPE_FIXED) {
if (avctx->min_prediction_order > MAX_FIXED_ORDER) {
av_log(avctx, AV_LOG_ERROR, "invalid min prediction order: %d\n",
avctx->min_prediction_order);
}
s->options.min_prediction_order = avctx->min_prediction_order;
}
- if (s->options.lpc_type == AV_LPC_TYPE_NONE) {
+ if (s->options.lpc_type == FF_LPC_TYPE_NONE) {
s->options.max_prediction_order = 0;
} else if (avctx->max_prediction_order >= 0) {
- if (s->options.lpc_type == AV_LPC_TYPE_FIXED) {
+ if (s->options.lpc_type == FF_LPC_TYPE_FIXED) {
if (avctx->max_prediction_order > MAX_FIXED_ORDER) {
av_log(avctx, AV_LOG_ERROR, "invalid max prediction order: %d\n",
avctx->max_prediction_order);
return -1;
}
+#if FF_API_FLAC_GLOBAL_OPTS
if (avctx->prediction_order_method >= 0) {
if (avctx->prediction_order_method > ORDER_METHOD_LOG) {
av_log(avctx, AV_LOG_ERROR, "invalid prediction order method: %d\n",
s->options.min_partition_order, s->options.max_partition_order);
return -1;
}
+#endif
if (avctx->frame_size > 0) {
if (avctx->frame_size < FLAC_MIN_BLOCKSIZE ||
}
s->max_blocksize = s->avctx->frame_size;
+#if FF_API_FLAC_GLOBAL_OPTS
/* set LPC precision */
if (avctx->lpc_coeff_precision > 0) {
if (avctx->lpc_coeff_precision > MAX_LPC_PRECISION) {
return -1;
}
s->options.lpc_coeff_precision = avctx->lpc_coeff_precision;
- } else {
- /* default LPC precision */
- s->options.lpc_coeff_precision = 15;
}
+#endif
/* set maximum encoded frame size in verbatim mode */
s->max_framesize = ff_flac_get_max_frame_size(s->avctx->frame_size,
}
ret = ff_lpc_init(&s->lpc_ctx, avctx->frame_size,
- s->options.max_prediction_order, AV_LPC_TYPE_LEVINSON);
+ s->options.max_prediction_order, FF_LPC_TYPE_LEVINSON);
dprint_compression_options(s);
/* FIXED */
sub->type = FLAC_SUBFRAME_FIXED;
- if (s->options.lpc_type == AV_LPC_TYPE_NONE ||
- s->options.lpc_type == AV_LPC_TYPE_FIXED || n <= max_order) {
+ if (s->options.lpc_type == FF_LPC_TYPE_NONE ||
+ s->options.lpc_type == FF_LPC_TYPE_FIXED || n <= max_order) {
uint32_t bits[MAX_FIXED_ORDER+1];
if (max_order > MAX_FIXED_ORDER)
max_order = MAX_FIXED_ORDER;
static int count_frame_header(FlacEncodeContext *s)
{
- uint8_t tmp;
+ uint8_t av_unused tmp;
int count;
/*
return 0;
}
+#define FLAGS AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM
+static const AVOption options[] = {
+{ "lpc_coeff_precision", "LPC coefficient precision", offsetof(FlacEncodeContext, options.lpc_coeff_precision), FF_OPT_TYPE_INT, {.dbl = 15 }, 0, MAX_LPC_PRECISION, FLAGS },
+{ "lpc_type", "LPC algorithm", offsetof(FlacEncodeContext, options.lpc_type), FF_OPT_TYPE_INT, {.dbl = FF_LPC_TYPE_DEFAULT }, FF_LPC_TYPE_DEFAULT, FF_LPC_TYPE_NB-1, FLAGS, "lpc_type" },
+{ "none", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_LPC_TYPE_NONE }, INT_MIN, INT_MAX, FLAGS, "lpc_type" },
+{ "fixed", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_LPC_TYPE_FIXED }, INT_MIN, INT_MAX, FLAGS, "lpc_type" },
+{ "levinson", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_LPC_TYPE_LEVINSON }, INT_MIN, INT_MAX, FLAGS, "lpc_type" },
+{ "cholesky", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = FF_LPC_TYPE_CHOLESKY }, INT_MIN, INT_MAX, FLAGS, "lpc_type" },
+{ "lpc_passes", "Number of passes to use for Cholesky factorization during LPC analysis", offsetof(FlacEncodeContext, options.lpc_passes), FF_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, FLAGS },
+{ "min_partition_order", NULL, offsetof(FlacEncodeContext, options.min_partition_order), FF_OPT_TYPE_INT, {.dbl = -1 }, -1, MAX_PARTITION_ORDER, FLAGS },
+{ "max_partition_order", NULL, offsetof(FlacEncodeContext, options.max_partition_order), FF_OPT_TYPE_INT, {.dbl = -1 }, -1, MAX_PARTITION_ORDER, FLAGS },
+{ "prediction_order_method", "Search method for selecting prediction order", offsetof(FlacEncodeContext, options.prediction_order_method), FF_OPT_TYPE_INT, {.dbl = -1 }, -1, ORDER_METHOD_LOG, FLAGS, "predm" },
+{ "estimation", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = ORDER_METHOD_EST }, INT_MIN, INT_MAX, FLAGS, "predm" },
+{ "2level", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = ORDER_METHOD_2LEVEL }, INT_MIN, INT_MAX, FLAGS, "predm" },
+{ "4level", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = ORDER_METHOD_4LEVEL }, INT_MIN, INT_MAX, FLAGS, "predm" },
+{ "8level", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = ORDER_METHOD_8LEVEL }, INT_MIN, INT_MAX, FLAGS, "predm" },
+{ "search", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = ORDER_METHOD_SEARCH }, INT_MIN, INT_MAX, FLAGS, "predm" },
+{ "log", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = ORDER_METHOD_LOG }, INT_MIN, INT_MAX, FLAGS, "predm" },
+{ NULL },
+};
+
+static const AVClass flac_encoder_class = {
+ "FLAC encoder",
+ av_default_item_name,
+ options,
+ LIBAVUTIL_VERSION_INT,
+};
AVCodec ff_flac_encoder = {
"flac",
flac_encode_frame,
flac_encode_close,
NULL,
- .capabilities = CODEC_CAP_SMALL_LAST_FRAME | CODEC_CAP_DELAY,
+ .capabilities = CODEC_CAP_SMALL_LAST_FRAME | CODEC_CAP_DELAY | CODEC_CAP_LOSSLESS,
.sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("FLAC (Free Lossless Audio Codec)"),
+ .priv_class = &flac_encoder_class,
};
projects / ffmpeg / blobdiff