audiod: Kill noisy debug message.
[paraslash.git] / wmadec_filter.c
index fdf3da9..49f69b5 100644 (file)
@@ -25,6 +25,7 @@
 #include <string.h>
 #include <regex.h>
 #include <sys/select.h>
+#include <stdbool.h>
 
 #include "para.h"
 #include "error.h"
@@ -32,6 +33,7 @@
 #include "ggo.h"
 #include "string.h"
 #include "sched.h"
+#include "buffer_tree.h"
 #include "filter.h"
 #include "bitstream.h"
 #include "imdct.h"
@@ -59,6 +61,7 @@
 #define LSP_POW_BITS 7
 
 struct private_wmadec_data {
+       /** Information contained in the audio file header. */
        struct asf_header_info ahi;
        struct getbit_context gb;
        /** Whether to use the bit reservoir. */
@@ -75,7 +78,8 @@ struct private_wmadec_data {
        uint16_t exponent_bands[BLOCK_NB_SIZES][25];
        /** The index of the first coef in high band. */
        int high_band_start[BLOCK_NB_SIZES];
-       int coefs_end[BLOCK_NB_SIZES];  ///< max number of coded coefficients
+       /** Maximal number of coded coefficients. */
+       int coefs_end[BLOCK_NB_SIZES];
        int exponent_high_sizes[BLOCK_NB_SIZES];
        int exponent_high_bands[BLOCK_NB_SIZES][HIGH_BAND_MAX_SIZE];
        struct vlc hgain_vlc;
@@ -89,21 +93,31 @@ struct private_wmadec_data {
        uint16_t *run_table[2];
        uint16_t *level_table[2];
        const struct coef_vlc_table *coef_vlcs[2];
-       /* frame info */
-       int frame_len;          ///< frame length in samples
-       int frame_len_bits;     ///< frame_len = 1 << frame_len_bits
+       /** Frame length in samples. */
+       int frame_len;
+       /** log2 of frame_len. */
+       int frame_len_bits;
        /** Number of block sizes. */
        int nb_block_sizes;
        /* block info */
        int reset_block_lengths;
-       int block_len_bits;     ///< log2 of current block length
-       int next_block_len_bits;        ///< log2 of next block length
-       int prev_block_len_bits;        ///< log2 of prev block length
-       int block_len;          ///< block length in samples
-       int block_pos;          ///< current position in frame
-       uint8_t ms_stereo;      ///< true if mid/side stereo mode
-       uint8_t channel_coded[MAX_CHANNELS];    ///< true if channel is coded
-       int exponents_bsize[MAX_CHANNELS];      ///< log2 ratio frame/exp. length
+       /** log2 of current block length. */
+       int block_len_bits;
+       /** log2 of next block length. */
+       int next_block_len_bits;
+       /** log2 of previous block length. */
+       int prev_block_len_bits;
+       /** Block length in samples. */
+       int block_len;
+       /** Current position in frame. */
+       int block_pos;
+       /** True if mid/side stereo mode. */
+       uint8_t ms_stereo;
+       /** True if channel is coded. */
+       uint8_t channel_coded[MAX_CHANNELS];
+       /** log2 ratio frame/exp. length. */
+       int exponents_bsize[MAX_CHANNELS];
+
        float exponents[MAX_CHANNELS][BLOCK_MAX_SIZE];
        float max_exponent[MAX_CHANNELS];
        int16_t coefs1[MAX_CHANNELS][BLOCK_MAX_SIZE];
@@ -111,9 +125,9 @@ struct private_wmadec_data {
        float output[BLOCK_MAX_SIZE * 2];
        struct mdct_context *mdct_ctx[BLOCK_NB_SIZES];
        float *windows[BLOCK_NB_SIZES];
-       /* output buffer for one frame and the last for IMDCT windowing */
+       /** Output buffer for one frame and the last for IMDCT windowing. */
        float frame_out[MAX_CHANNELS][BLOCK_MAX_SIZE * 2];
-       /* last frame info */
+       /** Last frame info. */
        uint8_t last_superframe[MAX_CODED_SUPERFRAME_SIZE + 4]; /* padding added */
        int last_bitoffset;
        int last_superframe_len;
@@ -136,7 +150,7 @@ struct private_wmadec_data {
 #define VLCBITS 9
 #define VLCMAX ((22 + VLCBITS - 1) / VLCBITS)
 
-#define SINE_WINDOW(x) float sine_ ## x[x] __aligned(16)
+#define SINE_WINDOW(x) float sine_ ## x[x] __a_aligned(16)
 
 SINE_WINDOW(128);
 SINE_WINDOW(256);
@@ -1167,9 +1181,9 @@ static int wma_decode_superframe(struct private_wmadec_data *pwd, void *data,
                        goto fail;
                samples += pwd->ahi.channels * pwd->frame_len;
        }
-       PARA_DEBUG_LOG("frame_len: %d, block_len: %d, outbytes: %zd, eaten: %d\n",
+       PARA_DEBUG_LOG("frame_len: %d, block_len: %d, outbytes: %d, eaten: %d\n",
                pwd->frame_len, pwd->block_len,
-               (int8_t *) samples - (int8_t *) data, pwd->ahi.block_align);
+               (int)((int8_t *)samples - (int8_t *)data), pwd->ahi.block_align);
        *data_size = (int8_t *)samples - (int8_t *)data;
        return pwd->ahi.block_align;
 fail:
@@ -1178,6 +1192,101 @@ fail:
        return ret;
 }
 
+static void wmadec_close(struct filter_node *fn)
+{
+       struct private_wmadec_data *pwd = fn->private_data;
+
+       if (!pwd)
+               return;
+       wmadec_cleanup(pwd);
+       free(fn->buf);
+       fn->buf = NULL;
+       free(fn->private_data);
+       fn->private_data = NULL;
+}
+
+static int wmadec_execute(struct btr_node *btrn, const char *cmd, char **result)
+{
+       struct filter_node *fn = btr_context(btrn);
+       struct private_wmadec_data *pwd = fn->private_data;
+
+       if (!strcmp(cmd, "samplerate")) {
+               if (pwd->ahi.sample_rate == 0)
+                       return -ERRNO_TO_PARA_ERROR(ENAVAIL);
+               *result = make_message("%u", pwd->ahi.sample_rate);
+               return 1;
+       }
+       if (!strcmp(cmd, "channels")) {
+               if (pwd->ahi.channels == 0)
+                       return -ERRNO_TO_PARA_ERROR(ENAVAIL);
+               *result = make_message("%u", pwd->ahi.channels);
+               return 1;
+       }
+       return -ERRNO_TO_PARA_ERROR(ENOTSUP);
+}
+
+#define WMA_OUTPUT_BUFFER_SIZE (128 * 1024)
+
+static void wmadec_post_select(__a_unused struct sched *s, struct task *t)
+{
+       struct filter_node *fn = container_of(t, struct filter_node, task);
+       int ret, converted;
+       struct private_wmadec_data *pwd = fn->private_data;
+       struct btr_node *btrn = fn->btrn;
+       size_t len;
+       char *in;
+
+next_buffer:
+       converted = 0;
+       t->error = 0;
+       ret = btr_node_status(btrn, fn->min_iqs, BTR_NT_INTERNAL);
+       if (ret < 0)
+               goto err;
+       if (ret == 0)
+               return;
+       btr_merge(btrn, fn->min_iqs);
+       len = btr_next_buffer(btrn, (char **)&in);
+       ret = -E_WMADEC_EOF;
+       if (len < fn->min_iqs)
+               goto err;
+       if (!pwd) {
+               ret = wma_decode_init(in, len, &pwd);
+               if (ret < 0)
+                       goto err;
+               if (ret == 0) {
+                       fn->min_iqs += 4096;
+                       goto next_buffer;
+               }
+               fn->min_iqs = WMA_FRAME_SKIP + pwd->ahi.block_align;
+               fn->private_data = pwd;
+               converted = pwd->ahi.header_len;
+               goto success;
+       }
+       for (;;) {
+               char *out;
+               int out_size = WMA_OUTPUT_BUFFER_SIZE;
+               if (converted + fn->min_iqs > len)
+                       break;
+               out = para_malloc(WMA_OUTPUT_BUFFER_SIZE);
+               ret = wma_decode_superframe(pwd, out,
+                       &out_size, (uint8_t *)in + converted + WMA_FRAME_SKIP,
+                       len - WMA_FRAME_SKIP);
+               if (ret < 0) {
+                       free(out);
+                       goto err;
+               }
+               btr_add_output(out, out_size, btrn);
+               converted += ret + WMA_FRAME_SKIP;
+       }
+success:
+       btr_consume(btrn, converted);
+       goto next_buffer;
+err:
+       assert(ret < 0);
+       t->error = ret;
+       btr_remove_node(btrn);
+}
+
 static ssize_t wmadec_convert(char *inbuffer, size_t len,
                struct filter_node *fn)
 {
@@ -1213,25 +1322,13 @@ static ssize_t wmadec_convert(char *inbuffer, size_t len,
        return converted;
 }
 
-static void wmadec_close(struct filter_node *fn)
-{
-       struct private_wmadec_data *pwd = fn->private_data;
-
-       if (!pwd)
-               return;
-       wmadec_cleanup(pwd);
-       free(fn->buf);
-       fn->buf = NULL;
-       free(fn->private_data);
-       fn->private_data = NULL;
-}
-
 static void wmadec_open(struct filter_node *fn)
 {
        fn->bufsize = 1024 * 1024;
        fn->buf = para_malloc(fn->bufsize);
        fn->private_data = NULL;
        fn->loaded = 0;
+       fn->min_iqs = 4096;
 }
 
 /**
@@ -1244,4 +1341,7 @@ void wmadec_filter_init(struct filter *f)
        f->open = wmadec_open;
        f->close = wmadec_close;
        f->convert = wmadec_convert;
+       f->execute = wmadec_execute;
+       f->pre_select = generic_filter_pre_select;
+       f->post_select = wmadec_post_select;
 }