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https://github.com/vgmstream/vgmstream.git
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bnnm
parent
4879c74ddd
commit
036748f584
@ -1,230 +1,230 @@
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#include "coding.h"
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#ifdef VGM_USE_CELT
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#include "celt/celt_fsb.h"
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#define FSB_CELT_0_06_1_VERSION 0x80000009 /* libcelt-0.6.1 */
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#define FSB_CELT_0_11_0_VERSION 0x80000010 /* libcelt-0.11.0 */
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#define FSB_CELT_SAMPLES_PER_FRAME 512
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#define FSB_CELT_INTERNAL_SAMPLE_RATE 44100
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#define FSB_CELT_MAX_DATA_SIZE 0x200 /* from 0x2e~0x172/1d0, all files are CBR though */
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/* opaque struct */
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struct celt_codec_data {
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sample_t* buffer;
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sample_t* sample_buffer;
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size_t samples_filled; /* number of samples in the buffer */
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size_t samples_used; /* number of samples extracted from the buffer */
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int samples_to_discard;
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int channel_mode;
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celt_lib_t version;
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void *mode_handle;
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void *decoder_handle;
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};
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/* FSB CELT, frames with custom header and standard data (API info from FMOD DLLs).
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* FMOD used various libcelt versions, thus some tweaks are needed for them to coexist. */
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celt_codec_data *init_celt_fsb(int channels, celt_lib_t version) {
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int error = 0, lib_version = 0;
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celt_codec_data* data = NULL;
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data = calloc(1, sizeof(celt_codec_data));
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if (!data) goto fail;
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data->channel_mode = channels; /* should be 1/2, or rejected by libcelt */
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data->version = version;
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switch(data->version) {
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case CELT_0_06_1: /* older FSB4 (FMOD ~4.33) */
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data->mode_handle = celt_0061_mode_create(FSB_CELT_INTERNAL_SAMPLE_RATE, data->channel_mode, FSB_CELT_SAMPLES_PER_FRAME, &error);
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if (!data->mode_handle || error != CELT_OK) goto fail;
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error = celt_0061_mode_info(data->mode_handle, CELT_GET_BITSTREAM_VERSION, &lib_version);
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if (error != CELT_OK || lib_version != FSB_CELT_0_06_1_VERSION) goto fail;
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data->decoder_handle = celt_0061_decoder_create(data->mode_handle);
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if (!data->decoder_handle) goto fail;
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break;
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case CELT_0_11_0: /* newer FSB4 (FMOD ~4.34), FSB5 */
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data->mode_handle = celt_0110_mode_create(FSB_CELT_INTERNAL_SAMPLE_RATE, FSB_CELT_SAMPLES_PER_FRAME, &error); /* "custom" and not ok? */
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if (!data->mode_handle || error != CELT_OK) goto fail;
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error = celt_0110_mode_info(data->mode_handle, CELT_GET_BITSTREAM_VERSION, &lib_version);
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if (error != CELT_OK || lib_version != FSB_CELT_0_11_0_VERSION) goto fail;
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data->decoder_handle = celt_0110_decoder_create_custom(data->mode_handle, data->channel_mode, &error);
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if (!data->decoder_handle || error != CELT_OK) goto fail;
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break;
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default:
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goto fail;
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}
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data->sample_buffer = calloc(sizeof(sample), data->channel_mode * FSB_CELT_SAMPLES_PER_FRAME);
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if (!data->sample_buffer) goto fail;
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/* there is ~128 samples of encoder delay, but FMOD DLLs don't discard it? */
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return data;
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fail:
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free_celt_fsb(data);
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return NULL;
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}
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void decode_celt_fsb(VGMSTREAM* vgmstream, sample_t* outbuf, int32_t samples_to_do, int channels) {
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VGMSTREAMCHANNEL* stream = &vgmstream->ch[0];
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celt_codec_data* data = vgmstream->codec_data;
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int samples_done = 0;
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while (samples_done < samples_to_do) {
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if (data->samples_filled) { /* consume samples */
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int samples_to_get = data->samples_filled;
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if (data->samples_to_discard) {
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/* discard samples for looping */
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if (samples_to_get > data->samples_to_discard)
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samples_to_get = data->samples_to_discard;
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data->samples_to_discard -= samples_to_get;
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}
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else {
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/* get max samples and copy */
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if (samples_to_get > samples_to_do - samples_done)
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samples_to_get = samples_to_do - samples_done;
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memcpy(outbuf + samples_done*channels,
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data->sample_buffer + data->samples_used*channels,
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samples_to_get*channels * sizeof(sample));
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samples_done += samples_to_get;
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}
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/* mark consumed samples */
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data->samples_used += samples_to_get;
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data->samples_filled -= samples_to_get;
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}
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else { /* decode data */
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int status;
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uint8_t data_buffer[FSB_CELT_MAX_DATA_SIZE] = {0};
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size_t bytes, frame_size;
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data->samples_used = 0;
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/* FSB DLLs do seem to check this fixed value */
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if (read_32bitBE(stream->offset+0x00,stream->streamfile) != 0x17C30DF3) {
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goto decode_fail;
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}
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frame_size = read_32bitLE(stream->offset+0x04,stream->streamfile);
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if (frame_size > FSB_CELT_MAX_DATA_SIZE) {
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goto decode_fail;
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}
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/* read and decode one raw block and advance offsets */
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bytes = read_streamfile(data_buffer,stream->offset+0x08, frame_size,stream->streamfile);
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if (bytes != frame_size) goto decode_fail;
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switch(data->version) {
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case CELT_0_06_1:
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status = celt_0061_decode(data->decoder_handle, data_buffer,bytes, data->sample_buffer);
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break;
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case CELT_0_11_0:
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status = celt_0110_decode(data->decoder_handle, data_buffer,bytes, data->sample_buffer, FSB_CELT_SAMPLES_PER_FRAME);
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break;
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default:
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goto decode_fail;
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}
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if (status != CELT_OK) goto decode_fail;
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stream->offset += 0x04+0x04+frame_size;
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data->samples_filled += FSB_CELT_SAMPLES_PER_FRAME;
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}
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}
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return;
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decode_fail:
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/* on error just put some 0 samples */
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VGM_LOG("CELT: decode fail at %x, missing %i samples\n", (uint32_t)stream->offset, (samples_to_do - samples_done));
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memset(outbuf + samples_done * channels, 0, (samples_to_do - samples_done) * sizeof(sample) * channels);
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}
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void reset_celt_fsb(celt_codec_data* data) {
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if (!data) return;
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/* recreate decoder (mode should not change) */
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switch(data->version) {
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case CELT_0_06_1:
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if (data->decoder_handle) celt_0061_decoder_destroy(data->decoder_handle);
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data->decoder_handle = celt_0061_decoder_create(data->mode_handle);
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if (!data->decoder_handle) goto fail;
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break;
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case CELT_0_11_0:
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if (data->decoder_handle) celt_0110_decoder_destroy(data->decoder_handle);
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data->decoder_handle = celt_0110_decoder_create_custom(data->mode_handle, data->channel_mode, NULL);
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if (!data->decoder_handle) goto fail;
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break;
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default:
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goto fail;
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}
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data->samples_used = 0;
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data->samples_filled = 0;
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data->samples_to_discard = 0;
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return;
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fail:
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return; /* decode calls should fail... */
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}
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void seek_celt_fsb(VGMSTREAM *vgmstream, int32_t num_sample) {
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celt_codec_data* data = vgmstream->codec_data;
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if (!data) return;
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reset_celt_fsb(data);
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data->samples_to_discard = num_sample;
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/* loop offsets are set during decode; force them to stream start so discard works */
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if (vgmstream->loop_ch)
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vgmstream->loop_ch[0].offset = vgmstream->loop_ch[0].channel_start_offset;
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}
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void free_celt_fsb(celt_codec_data* data) {
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if (!data) return;
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switch(data->version) {
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case CELT_0_06_1:
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if (data->decoder_handle) celt_0061_decoder_destroy(data->decoder_handle);
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if (data->mode_handle) celt_0061_mode_destroy(data->mode_handle);
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break;
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case CELT_0_11_0:
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if (data->decoder_handle) celt_0110_decoder_destroy(data->decoder_handle);
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if (data->mode_handle) celt_0110_mode_destroy(data->mode_handle);
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break;
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default:
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break;
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}
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free(data->sample_buffer);
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free(data);
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}
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#endif
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#include "coding.h"
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#ifdef VGM_USE_CELT
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#include "celt/celt_fsb.h"
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#define FSB_CELT_0_06_1_VERSION 0x80000009 /* libcelt-0.6.1 */
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#define FSB_CELT_0_11_0_VERSION 0x80000010 /* libcelt-0.11.0 */
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#define FSB_CELT_SAMPLES_PER_FRAME 512
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#define FSB_CELT_INTERNAL_SAMPLE_RATE 44100
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#define FSB_CELT_MAX_DATA_SIZE 0x200 /* from 0x2e~0x172/1d0, all files are CBR though */
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/* opaque struct */
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struct celt_codec_data {
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sample_t* buffer;
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sample_t* sample_buffer;
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size_t samples_filled; /* number of samples in the buffer */
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size_t samples_used; /* number of samples extracted from the buffer */
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int samples_to_discard;
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int channel_mode;
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celt_lib_t version;
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void *mode_handle;
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void *decoder_handle;
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};
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/* FSB CELT, frames with custom header and standard data (API info from FMOD DLLs).
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* FMOD used various libcelt versions, thus some tweaks are needed for them to coexist. */
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celt_codec_data *init_celt_fsb(int channels, celt_lib_t version) {
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int error = 0, lib_version = 0;
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celt_codec_data* data = NULL;
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data = calloc(1, sizeof(celt_codec_data));
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if (!data) goto fail;
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data->channel_mode = channels; /* should be 1/2, or rejected by libcelt */
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data->version = version;
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switch(data->version) {
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case CELT_0_06_1: /* older FSB4 (FMOD ~4.33) */
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data->mode_handle = celt_0061_mode_create(FSB_CELT_INTERNAL_SAMPLE_RATE, data->channel_mode, FSB_CELT_SAMPLES_PER_FRAME, &error);
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if (!data->mode_handle || error != CELT_OK) goto fail;
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error = celt_0061_mode_info(data->mode_handle, CELT_GET_BITSTREAM_VERSION, &lib_version);
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if (error != CELT_OK || lib_version != FSB_CELT_0_06_1_VERSION) goto fail;
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data->decoder_handle = celt_0061_decoder_create(data->mode_handle);
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if (!data->decoder_handle) goto fail;
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break;
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case CELT_0_11_0: /* newer FSB4 (FMOD ~4.34), FSB5 */
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data->mode_handle = celt_0110_mode_create(FSB_CELT_INTERNAL_SAMPLE_RATE, FSB_CELT_SAMPLES_PER_FRAME, &error); /* "custom" and not ok? */
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if (!data->mode_handle || error != CELT_OK) goto fail;
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error = celt_0110_mode_info(data->mode_handle, CELT_GET_BITSTREAM_VERSION, &lib_version);
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if (error != CELT_OK || lib_version != FSB_CELT_0_11_0_VERSION) goto fail;
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data->decoder_handle = celt_0110_decoder_create_custom(data->mode_handle, data->channel_mode, &error);
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if (!data->decoder_handle || error != CELT_OK) goto fail;
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break;
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default:
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goto fail;
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}
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data->sample_buffer = calloc(sizeof(sample), data->channel_mode * FSB_CELT_SAMPLES_PER_FRAME);
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if (!data->sample_buffer) goto fail;
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/* there is ~128 samples of encoder delay, but FMOD DLLs don't discard it? */
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return data;
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fail:
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free_celt_fsb(data);
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return NULL;
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}
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void decode_celt_fsb(VGMSTREAM* vgmstream, sample_t* outbuf, int32_t samples_to_do, int channels) {
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VGMSTREAMCHANNEL* stream = &vgmstream->ch[0];
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celt_codec_data* data = vgmstream->codec_data;
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int samples_done = 0;
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while (samples_done < samples_to_do) {
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if (data->samples_filled) { /* consume samples */
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int samples_to_get = data->samples_filled;
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if (data->samples_to_discard) {
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/* discard samples for looping */
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if (samples_to_get > data->samples_to_discard)
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samples_to_get = data->samples_to_discard;
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data->samples_to_discard -= samples_to_get;
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}
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else {
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/* get max samples and copy */
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if (samples_to_get > samples_to_do - samples_done)
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samples_to_get = samples_to_do - samples_done;
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memcpy(outbuf + samples_done*channels,
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data->sample_buffer + data->samples_used*channels,
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samples_to_get*channels * sizeof(sample));
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samples_done += samples_to_get;
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}
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/* mark consumed samples */
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data->samples_used += samples_to_get;
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data->samples_filled -= samples_to_get;
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}
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else { /* decode data */
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int status;
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uint8_t data_buffer[FSB_CELT_MAX_DATA_SIZE] = {0};
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size_t bytes, frame_size;
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data->samples_used = 0;
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|
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/* FSB DLLs do seem to check this fixed value */
|
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if (read_32bitBE(stream->offset+0x00,stream->streamfile) != 0x17C30DF3) {
|
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goto decode_fail;
|
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}
|
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frame_size = read_32bitLE(stream->offset+0x04,stream->streamfile);
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if (frame_size > FSB_CELT_MAX_DATA_SIZE) {
|
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goto decode_fail;
|
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}
|
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|
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/* read and decode one raw block and advance offsets */
|
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bytes = read_streamfile(data_buffer,stream->offset+0x08, frame_size,stream->streamfile);
|
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if (bytes != frame_size) goto decode_fail;
|
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|
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switch(data->version) {
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case CELT_0_06_1:
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status = celt_0061_decode(data->decoder_handle, data_buffer,bytes, data->sample_buffer);
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break;
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|
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case CELT_0_11_0:
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status = celt_0110_decode(data->decoder_handle, data_buffer,bytes, data->sample_buffer, FSB_CELT_SAMPLES_PER_FRAME);
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break;
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|
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default:
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goto decode_fail;
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}
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if (status != CELT_OK) goto decode_fail;
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|
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stream->offset += 0x04+0x04+frame_size;
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data->samples_filled += FSB_CELT_SAMPLES_PER_FRAME;
|
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}
|
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}
|
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|
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return;
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decode_fail:
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/* on error just put some 0 samples */
|
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VGM_LOG("CELT: decode fail at %x, missing %i samples\n", (uint32_t)stream->offset, (samples_to_do - samples_done));
|
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memset(outbuf + samples_done * channels, 0, (samples_to_do - samples_done) * sizeof(sample) * channels);
|
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}
|
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|
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void reset_celt_fsb(celt_codec_data* data) {
|
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if (!data) return;
|
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|
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/* recreate decoder (mode should not change) */
|
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switch(data->version) {
|
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case CELT_0_06_1:
|
||||
if (data->decoder_handle) celt_0061_decoder_destroy(data->decoder_handle);
|
||||
|
||||
data->decoder_handle = celt_0061_decoder_create(data->mode_handle);
|
||||
if (!data->decoder_handle) goto fail;
|
||||
break;
|
||||
|
||||
case CELT_0_11_0:
|
||||
if (data->decoder_handle) celt_0110_decoder_destroy(data->decoder_handle);
|
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|
||||
data->decoder_handle = celt_0110_decoder_create_custom(data->mode_handle, data->channel_mode, NULL);
|
||||
if (!data->decoder_handle) goto fail;
|
||||
break;
|
||||
|
||||
default:
|
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goto fail;
|
||||
}
|
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|
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data->samples_used = 0;
|
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data->samples_filled = 0;
|
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data->samples_to_discard = 0;
|
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|
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return;
|
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fail:
|
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return; /* decode calls should fail... */
|
||||
}
|
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|
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void seek_celt_fsb(VGMSTREAM *vgmstream, int32_t num_sample) {
|
||||
celt_codec_data* data = vgmstream->codec_data;
|
||||
if (!data) return;
|
||||
|
||||
reset_celt_fsb(data);
|
||||
|
||||
data->samples_to_discard = num_sample;
|
||||
|
||||
/* loop offsets are set during decode; force them to stream start so discard works */
|
||||
if (vgmstream->loop_ch)
|
||||
vgmstream->loop_ch[0].offset = vgmstream->loop_ch[0].channel_start_offset;
|
||||
}
|
||||
|
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void free_celt_fsb(celt_codec_data* data) {
|
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if (!data) return;
|
||||
|
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switch(data->version) {
|
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case CELT_0_06_1:
|
||||
if (data->decoder_handle) celt_0061_decoder_destroy(data->decoder_handle);
|
||||
if (data->mode_handle) celt_0061_mode_destroy(data->mode_handle);
|
||||
break;
|
||||
|
||||
case CELT_0_11_0:
|
||||
if (data->decoder_handle) celt_0110_decoder_destroy(data->decoder_handle);
|
||||
if (data->mode_handle) celt_0110_mode_destroy(data->mode_handle);
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
free(data->sample_buffer);
|
||||
free(data);
|
||||
}
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user