gui: Check return value of para_exec_cmdline_pid().
[paraslash.git] / wmadec_filter.c
index a03463d..7d89d11 100644 (file)
@@ -32,6 +32,7 @@
 #include "ggo.h"
 #include "string.h"
 #include "sched.h"
+#include "buffer_tree.h"
 #include "filter.h"
 #include "bitstream.h"
 #include "imdct.h"
@@ -59,6 +60,7 @@
 #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 +77,8 @@ 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 +92,31 @@ 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 +124,9 @@ 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;
@@ -128,15 +141,15 @@ struct private_wmadec_data {
 };
 
 #define EXPVLCBITS 8
-#define EXPMAX ((19 + EXPVLCBITS - 1) / EXPVLCBITS)
+#define EXPMAX DIV_ROUND_UP(19, EXPVLCBITS)
 
 #define HGAINVLCBITS 9
-#define HGAINMAX ((13 + HGAINVLCBITS - 1) / HGAINVLCBITS)
+#define HGAINMAX DIV_ROUND_UP(13, HGAINVLCBITS)
 
 #define VLCBITS 9
-#define VLCMAX ((22 + VLCBITS - 1) / VLCBITS)
+#define VLCMAX DIV_ROUND_UP(22, VLCBITS)
 
-#define SINE_WINDOW(x) float sine_ ## x[x] __aligned(16)
+#define SINE_WINDOW(x) static float sine_ ## x[x] __a_aligned(16)
 
 SINE_WINDOW(128);
 SINE_WINDOW(256);
@@ -290,13 +303,12 @@ static int wma_init(struct private_wmadec_data *pwd)
                return -E_WMA_BAD_PARAMS;
 
        /* compute MDCT block size */
-       if (ahi->sample_rate <= 16000) {
+       if (ahi->sample_rate <= 16000)
                pwd->frame_len_bits = 9;
-       } else if (ahi->sample_rate <= 22050) {
+       else if (ahi->sample_rate <= 22050)
                pwd->frame_len_bits = 10;
-       } else {
+       else
                pwd->frame_len_bits = 11;
-       }
        pwd->frame_len = 1 << pwd->frame_len_bits;
        if (pwd->use_variable_block_len) {
                int nb_max, nb;
@@ -353,24 +365,22 @@ static int wma_init(struct private_wmadec_data *pwd)
                        high_freq = high_freq * 0.5;
                else
                        high_freq = high_freq * 0.3;
-       } else if (sample_rate1 == 11025) {
+       } else if (sample_rate1 == 11025)
                high_freq = high_freq * 0.7;
-       else if (sample_rate1 == 8000) {
-               if (bps <= 0.625) {
+       else if (sample_rate1 == 8000) {
+               if (bps <= 0.625)
                        high_freq = high_freq * 0.5;
-               } else if (bps > 0.75) {
+               else if (bps > 0.75)
                        pwd->use_noise_coding = 0;
-               } else {
+               else
                        high_freq = high_freq * 0.65;
-               }
        } else {
-               if (bps >= 0.8) {
+               if (bps >= 0.8)
                        high_freq = high_freq * 0.75;
-               } else if (bps >= 0.6) {
+               else if (bps >= 0.6)
                        high_freq = high_freq * 0.6;
-               } else {
+               else
                        high_freq = high_freq * 0.5;
-               }
        }
        PARA_INFO_LOG("channels=%d sample_rate=%d "
                "bitrate=%d block_align=%d\n",
@@ -758,7 +768,6 @@ static void compute_mdct_coefficients(struct private_wmadec_data *pwd,
                                *coefs++ = 0.0;
                        continue;
                }
-               mult1 = mult;
                n1 = pwd->exponent_high_sizes[bsize];
                /* compute power of high bands */
                exponents = pwd->exponents[ch] +
@@ -792,8 +801,7 @@ static void compute_mdct_coefficients(struct private_wmadec_data *pwd,
                                mult1 = sqrt(exp_power[j]
                                        / exp_power[last_high_band]);
                                /* XXX: use a table */
-                               mult1 = mult1 * pow(10,
-                                       pwd->high_band_values[ch][j] * 0.05);
+                               mult1 *= pow(10, pwd->high_band_values[ch][j] * 0.05);
                                mult1 /= (pwd->max_exponent[ch] * pwd->noise_mult);
                                mult1 *= mdct_norm;
                                for (i = 0; i < n; i++) {
@@ -999,9 +1007,8 @@ static int wma_decode_block(struct private_wmadec_data *pwd)
        }
 next:
        for (ch = 0; ch < pwd->ahi.channels; ch++) {
-               int n4, index;
+               int n4, idx;
 
-               n = pwd->block_len;
                n4 = pwd->block_len / 2;
                if (pwd->channel_coded[ch])
                        imdct(pwd->mdct_ctx[bsize], pwd->output, pwd->coefs[ch]);
@@ -1009,8 +1016,8 @@ next:
                        memset(pwd->output, 0, sizeof(pwd->output));
 
                /* multiply by the window and add in the frame */
-               index = (pwd->frame_len / 2) + pwd->block_pos - n4;
-               wma_window(pwd, &pwd->frame_out[ch][index]);
+               idx = (pwd->frame_len / 2) + pwd->block_pos - n4;
+               wma_window(pwd, &pwd->frame_out[ch][idx]);
        }
 
        /* update block number */
@@ -1076,7 +1083,6 @@ static int wma_decode_superframe(struct private_wmadec_data *pwd, void *data,
 {
        int ret;
        int16_t *samples;
-       static int frame_count;
 
        if (buf_size == 0) {
                pwd->last_superframe_len = 0;
@@ -1130,7 +1136,6 @@ static int wma_decode_superframe(struct private_wmadec_data *pwd, void *data,
                        ret = wma_decode_frame(pwd, samples);
                        if (ret < 0)
                                goto fail;
-                       frame_count++;
                        samples += pwd->ahi.channels * pwd->frame_len;
                }
 
@@ -1147,7 +1152,6 @@ static int wma_decode_superframe(struct private_wmadec_data *pwd, void *data,
                        ret = wma_decode_frame(pwd, samples);
                        if (ret < 0)
                                goto fail;
-                       frame_count++;
                        samples += pwd->ahi.channels * pwd->frame_len;
                }
 
@@ -1171,13 +1175,11 @@ static int wma_decode_superframe(struct private_wmadec_data *pwd, void *data,
                ret = wma_decode_frame(pwd, samples);
                if (ret < 0)
                        goto fail;
-               frame_count++;
                samples += pwd->ahi.channels * pwd->frame_len;
        }
-       PARA_DEBUG_LOG("frame_count: %d frame_len: %d, block_len: %d, "
-               "outbytes: %zd, eaten: %d\n",
-               frame_count, pwd->frame_len, pwd->block_len,
-               (int8_t *) samples - (int8_t *) data, pwd->ahi.block_align);
+       PARA_DEBUG_LOG("frame_len: %d, block_len: %d, outbytes: %d, eaten: %d\n",
+               pwd->frame_len, pwd->block_len,
+               (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:
@@ -1186,60 +1188,93 @@ fail:
        return ret;
 }
 
-static ssize_t wmadec_convert(char *inbuffer, size_t len,
-               struct filter_node *fn)
+static void wmadec_close(struct filter_node *fn)
 {
-       int ret, converted = 0;
        struct private_wmadec_data *pwd = fn->private_data;
 
-       if (len <= WMA_FRAME_SKIP)
-               return 0;
+       if (!pwd)
+               return;
+       wmadec_cleanup(pwd);
+       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;
+
+       return decoder_execute(cmd, pwd->ahi.sample_rate, pwd->ahi.channels,
+               result);
+}
+
+#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(inbuffer, len, &pwd);
-               if (ret <= 0)
-                       return ret;
+               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 = 2 * (WMA_FRAME_SKIP + pwd->ahi.block_align);
                fn->private_data = pwd;
-               fn->fc->channels = pwd->ahi.channels;
-               fn->fc->samplerate = pwd->ahi.sample_rate;
-               return pwd->ahi.header_len;
+               converted = pwd->ahi.header_len;
+               goto success;
        }
+       fn->min_iqs = WMA_FRAME_SKIP + pwd->ahi.block_align;
        for (;;) {
-               int out_size;
-               if (converted + WMA_FRAME_SKIP + pwd->ahi.block_align > len)
-                       break;
-               out_size = fn->bufsize - fn->loaded;
-               if (out_size < 128 * 1024)
+               char *out;
+               int out_size = WMA_OUTPUT_BUFFER_SIZE;
+               if (converted + fn->min_iqs > len)
                        break;
-               ret = wma_decode_superframe(pwd, fn->buf + fn->loaded,
-                       &out_size, (uint8_t *)inbuffer + converted + WMA_FRAME_SKIP,
+               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)
-                       return ret;
-               fn->loaded += out_size;
+               if (ret < 0) {
+                       free(out);
+                       goto err;
+               }
+               btr_add_output(out, out_size, btrn);
                converted += ret + WMA_FRAME_SKIP;
        }
-       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;
+success:
+       btr_consume(btrn, converted);
+       return;
+err:
+       assert(ret < 0);
+       t->error = ret;
+       btr_remove_node(btrn);
 }
 
 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;
 }
 
 /**
@@ -1251,5 +1286,7 @@ 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;
 }