X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=wmadec_filter.c;h=6a5df98e9b832ad1b2b43c76716817e73944f2e8;hp=0dff2b7914a0e1f1e18afc412bbd331bfe32f648;hb=8e48e706ab1acc7dff83d5ceb446dccd75d9abdc;hpb=d2b2c210d1e388a29cef3d8189d6d80f3299b439 diff --git a/wmadec_filter.c b/wmadec_filter.c index 0dff2b79..6a5df98e 100644 --- a/wmadec_filter.c +++ b/wmadec_filter.c @@ -24,11 +24,11 @@ #include "para.h" #include "error.h" #include "list.h" -#include "ggo.h" #include "string.h" #include "sched.h" #include "buffer_tree.h" #include "filter.h" +#include "portable_io.h" #include "bitstream.h" #include "imdct.h" #include "wma.h" @@ -159,23 +159,6 @@ static void sine_window_init(float *window, int n) window[i] = sinf((i + 0.5) * (M_PI / (2.0 * n))); } -static void wmadec_cleanup(struct private_wmadec_data *pwd) -{ - int i; - - for (i = 0; i < pwd->nb_block_sizes; i++) - imdct_end(pwd->mdct_ctx[i]); - if (pwd->ahi.use_exp_vlc) - free_vlc(&pwd->exp_vlc); - if (pwd->use_noise_coding) - free_vlc(&pwd->hgain_vlc); - for (i = 0; i < 2; i++) { - free_vlc(&pwd->coef_vlc[i]); - free(pwd->run_table[i]); - free(pwd->level_table[i]); - } -} - static void init_coef_vlc(struct vlc *vlc, uint16_t **prun_table, uint16_t **plevel_table, const struct coef_vlc_table *vlc_table) { @@ -371,8 +354,8 @@ static int wma_init(struct private_wmadec_data *pwd) else high_freq = high_freq * 0.5; } - PARA_INFO_LOG("channels=%d sample_rate=%d " - "bitrate=%d block_align=%d\n", + PARA_INFO_LOG("channels=%u sample_rate=%u " + "bitrate=%u block_align=%d\n", ahi->channels, ahi->sample_rate, ahi->bit_rate, ahi->block_align); PARA_INFO_LOG("frame_len=%d, bps=%f bps1=%f " @@ -581,7 +564,7 @@ static int decode_exp_vlc(struct private_wmadec_data *pwd, int ch) last_exp = 36; while (q < q_end) { - code = get_vlc(&pwd->gb, pwd->exp_vlc.table, EXPVLCBITS); + code = get_vlc(&pwd->gb, &pwd->exp_vlc); if (code < 0) return code; /* NOTE: this offset is the same as MPEG4 AAC ! */ @@ -708,8 +691,7 @@ static int compute_high_band_values(struct private_wmadec_data *pwd, if (val == (int)0x80000000) val = get_bits(&pwd->gb, 7) - 19; else { - int code = get_vlc(&pwd->gb, - pwd->hgain_vlc.table, HGAINVLCBITS); + int code = get_vlc(&pwd->gb, &pwd->hgain_vlc); if (code < 0) return code; val += code - 18; @@ -940,7 +922,7 @@ static int wma_decode_block(struct private_wmadec_data *pwd) eptr = ptr + nb_coefs[ch]; memset(ptr, 0, pwd->block_len * sizeof(int16_t)); for (;;) { - code = get_vlc(&pwd->gb, coef_vlc->table, VLCBITS); + code = get_vlc(&pwd->gb, coef_vlc); if (code < 0) return code; if (code == 1) /* EOB */ @@ -1028,7 +1010,7 @@ static inline int16_t av_clip_int16(int a) /* Decode a frame of frame_len samples. */ static int wma_decode_frame(struct private_wmadec_data *pwd, int16_t *samples) { - int ret, i, n, ch, incr; + int ret, i, ch; int16_t *ptr; float *iptr; @@ -1043,15 +1025,13 @@ static int wma_decode_frame(struct private_wmadec_data *pwd, int16_t *samples) } /* convert frame to integer */ - n = pwd->frame_len; - incr = pwd->ahi.channels; for (ch = 0; ch < pwd->ahi.channels; ch++) { ptr = samples + ch; iptr = pwd->frame_out[ch]; - for (i = 0; i < n; i++) { + for (i = 0; i < pwd->frame_len; i++) { *ptr = av_clip_int16(lrintf(*iptr++)); - ptr += incr; + ptr += pwd->ahi.channels; } /* prepare for next block */ memmove(&pwd->frame_out[ch][0], &pwd->frame_out[ch][pwd->frame_len], @@ -1068,10 +1048,13 @@ static int wma_decode_superframe(struct private_wmadec_data *pwd, void *data, if (buf_size == 0) { pwd->last_superframe_len = 0; + *data_size = 0; return 0; } - if (buf_size < pwd->ahi.block_align) + if (buf_size < pwd->ahi.block_align) { + *data_size = 0; return 0; + } buf_size = pwd->ahi.block_align; samples = data; init_get_bits(&pwd->gb, buf, buf_size); @@ -1173,10 +1156,21 @@ fail: static void wmadec_close(struct filter_node *fn) { struct private_wmadec_data *pwd = fn->private_data; + int i; if (!pwd) return; - wmadec_cleanup(pwd); + for (i = 0; i < pwd->nb_block_sizes; i++) + imdct_end(pwd->mdct_ctx[i]); + if (pwd->ahi.use_exp_vlc) + free_vlc(&pwd->exp_vlc); + if (pwd->use_noise_coding) + free_vlc(&pwd->hgain_vlc); + for (i = 0; i < 2; i++) { + free_vlc(&pwd->coef_vlc[i]); + free(pwd->run_table[i]); + free(pwd->level_table[i]); + } free(fn->private_data); fn->private_data = NULL; } @@ -1209,7 +1203,7 @@ next_buffer: if (ret == 0) return 0; btr_merge(btrn, fn->min_iqs); - len = btr_next_buffer(btrn, (char **)&in); + len = btr_next_buffer(btrn, &in); ret = -E_WMADEC_EOF; if (len < fn->min_iqs) goto err; @@ -1221,12 +1215,12 @@ next_buffer: fn->min_iqs += 4096; goto next_buffer; } - fn->min_iqs = 2 * (WMA_FRAME_SKIP + pwd->ahi.block_align); + fn->min_iqs = 2 * pwd->ahi.packet_size; fn->private_data = pwd; converted = pwd->ahi.header_len; goto success; } - fn->min_iqs = WMA_FRAME_SKIP + pwd->ahi.block_align; + fn->min_iqs = pwd->ahi.packet_size; if (fn->min_iqs > len) goto success; out_size = WMA_OUTPUT_BUFFER_SIZE; @@ -1237,10 +1231,12 @@ next_buffer: free(out); goto err; } - out = para_realloc(out, out_size); - if (out_size > 0) + if (out_size > 0) { + out = para_realloc(out, out_size); btr_add_output(out, out_size, btrn); - converted += ret + WMA_FRAME_SKIP; + } else + free(out); + converted += pwd->ahi.packet_size; success: btr_consume(btrn, converted); return 0; @@ -1256,16 +1252,10 @@ static void wmadec_open(struct filter_node *fn) fn->min_iqs = 4096; } -/** - * The init function of the wma decoder. - * - * \param f Its fields are filled in by the function. - */ -void wmadec_filter_init(struct filter *f) -{ - f->open = wmadec_open; - f->close = wmadec_close; - f->execute = wmadec_execute; - f->pre_select = generic_filter_pre_select; - f->post_select = wmadec_post_select; -} +const struct filter lsg_filter_cmd_com_wmadec_user_data = { + .open = wmadec_open, + .close = wmadec_close, + .execute = wmadec_execute, + .pre_select = generic_filter_pre_select, + .post_select = wmadec_post_select, +};