* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/attributes.h"
#include "avcodec.h"
#include "internal.h"
#include "wma.h"
#include <assert.h>
-static int encode_init(AVCodecContext * avctx){
+static av_cold int encode_init(AVCodecContext *avctx)
+{
WMACodecContext *s = avctx->priv_data;
- int i, flags1, flags2;
+ int i, flags1, flags2, block_align;
uint8_t *extradata;
s->avctx = avctx;
/* extract flag infos */
flags1 = 0;
flags2 = 1;
- if (avctx->codec->id == CODEC_ID_WMAV1) {
+ if (avctx->codec->id == AV_CODEC_ID_WMAV1) {
extradata= av_malloc(4);
avctx->extradata_size= 4;
AV_WL16(extradata, flags1);
AV_WL16(extradata+2, flags2);
- } else if (avctx->codec->id == CODEC_ID_WMAV2) {
+ } else if (avctx->codec->id == AV_CODEC_ID_WMAV2) {
extradata= av_mallocz(10);
avctx->extradata_size= 10;
AV_WL32(extradata, flags1);
for(i = 0; i < s->nb_block_sizes; i++)
ff_mdct_init(&s->mdct_ctx[i], s->frame_len_bits - i + 1, 0, 1.0);
- s->block_align = avctx->bit_rate * (int64_t)s->frame_len /
+ block_align = avctx->bit_rate * (int64_t)s->frame_len /
(avctx->sample_rate * 8);
- s->block_align = FFMIN(s->block_align, MAX_CODED_SUPERFRAME_SIZE);
- avctx->block_align = s->block_align;
+ block_align = FFMIN(block_align, MAX_CODED_SUPERFRAME_SIZE);
+ avctx->block_align = block_align;
avctx->bit_rate = avctx->block_align * 8LL * avctx->sample_rate /
s->frame_len;
-//av_log(NULL, AV_LOG_ERROR, "%d %d %d %d\n", s->block_align, avctx->bit_rate, s->frame_len, avctx->sample_rate);
avctx->frame_size = avctx->delay = s->frame_len;
-#if FF_API_OLD_ENCODE_AUDIO
- avctx->coded_frame = &s->frame;
- avcodec_get_frame_defaults(avctx->coded_frame);
-#endif
-
return 0;
}
-static void apply_window_and_mdct(AVCodecContext * avctx, const signed short * audio, int len) {
+static void apply_window_and_mdct(AVCodecContext * avctx, const AVFrame *frame)
+{
WMACodecContext *s = avctx->priv_data;
+ float **audio = (float **)frame->extended_data;
+ int len = frame->nb_samples;
int window_index= s->frame_len_bits - s->block_len_bits;
FFTContext *mdct = &s->mdct_ctx[window_index];
- int i, j, channel;
+ int ch;
const float * win = s->windows[window_index];
int window_len = 1 << s->block_len_bits;
- float n = window_len/2;
-
- for (channel = 0; channel < avctx->channels; channel++) {
- memcpy(s->output, s->frame_out[channel], sizeof(float)*window_len);
- j = channel;
- for (i = 0; i < len; i++, j += avctx->channels){
- s->output[i+window_len] = audio[j] / n * win[window_len - i - 1];
- s->frame_out[channel][i] = audio[j] / n * win[i];
- }
- mdct->mdct_calc(mdct, s->coefs[channel], s->output);
+ float n = 2.0 * 32768.0 / window_len;
+
+ for (ch = 0; ch < avctx->channels; ch++) {
+ memcpy(s->output, s->frame_out[ch], window_len * sizeof(*s->output));
+ s->fdsp.vector_fmul_scalar(s->frame_out[ch], audio[ch], n, len);
+ s->fdsp.vector_fmul_reverse(&s->output[window_len], s->frame_out[ch], win, len);
+ s->fdsp.vector_fmul(s->frame_out[ch], s->frame_out[ch], win, len);
+ mdct->mdct_calc(mdct, s->coefs[ch], s->output);
}
}
//FIXME factor
v = s->coefs_end[bsize] - s->coefs_start;
- for(ch = 0; ch < s->nb_channels; ch++)
+ for (ch = 0; ch < s->avctx->channels; ch++)
nb_coefs[ch] = v;
{
int n4 = s->block_len / 2;
}
}
- if (s->nb_channels == 2) {
+ if (s->avctx->channels == 2) {
put_bits(&s->pb, 1, !!s->ms_stereo);
}
- for(ch = 0; ch < s->nb_channels; ch++) {
+ for (ch = 0; ch < s->avctx->channels; ch++) {
s->channel_coded[ch] = 1; //FIXME only set channel_coded when needed, instead of always
if (s->channel_coded[ch]) {
init_exp(s, ch, fixed_exp);
}
}
- for(ch = 0; ch < s->nb_channels; ch++) {
+ for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
WMACoef *coefs1;
float *coefs, *exponents, mult;
}
v = 0;
- for(ch = 0; ch < s->nb_channels; ch++) {
+ for (ch = 0; ch < s->avctx->channels; ch++) {
int a = s->channel_coded[ch];
put_bits(&s->pb, 1, a);
v |= a;
coef_nb_bits= ff_wma_total_gain_to_bits(total_gain);
if (s->use_noise_coding) {
- for(ch = 0; ch < s->nb_channels; ch++) {
+ for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
int i, n;
n = s->exponent_high_sizes[bsize];
}
if (parse_exponents) {
- for(ch = 0; ch < s->nb_channels; ch++) {
+ for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
if (s->use_exp_vlc) {
encode_exp_vlc(s, ch, fixed_exp);
assert(0); //FIXME not implemented
}
- for(ch = 0; ch < s->nb_channels; ch++) {
+ for (ch = 0; ch < s->avctx->channels; ch++) {
if (s->channel_coded[ch]) {
int run, tindex;
WMACoef *ptr, *eptr;
if(run)
put_bits(&s->pb, s->coef_vlcs[tindex]->huffbits[1], s->coef_vlcs[tindex]->huffcodes[1]);
}
- if (s->version == 1 && s->nb_channels >= 2) {
+ if (s->version == 1 && s->avctx->channels >= 2) {
avpriv_align_put_bits(&s->pb);
}
}
avpriv_align_put_bits(&s->pb);
- return put_bits_count(&s->pb)/8 - s->block_align;
+ return put_bits_count(&s->pb) / 8 - s->avctx->block_align;
}
static int encode_superframe(AVCodecContext *avctx, AVPacket *avpkt,
const AVFrame *frame, int *got_packet_ptr)
{
WMACodecContext *s = avctx->priv_data;
- const int16_t *samples = (const int16_t *)frame->data[0];
int i, total_gain, ret;
s->block_len_bits= s->frame_len_bits; //required by non variable block len
s->block_len = 1 << s->block_len_bits;
- apply_window_and_mdct(avctx, samples, frame->nb_samples);
+ apply_window_and_mdct(avctx, frame);
if (s->ms_stereo) {
float a, b;
if (frame->pts != AV_NOPTS_VALUE)
avpkt->pts = frame->pts - ff_samples_to_time_base(avctx, avctx->delay);
- avpkt->size = s->block_align;
+ avpkt->size = avctx->block_align;
*got_packet_ptr = 1;
return 0;
}
AVCodec ff_wmav1_encoder = {
.name = "wmav1",
+ .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 1"),
.type = AVMEDIA_TYPE_AUDIO,
- .id = CODEC_ID_WMAV1,
+ .id = AV_CODEC_ID_WMAV1,
.priv_data_size = sizeof(WMACodecContext),
.init = encode_init,
.encode2 = encode_superframe,
.close = ff_wma_end,
- .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 1"),
+ .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP,
+ AV_SAMPLE_FMT_NONE },
};
AVCodec ff_wmav2_encoder = {
.name = "wmav2",
+ .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
.type = AVMEDIA_TYPE_AUDIO,
- .id = CODEC_ID_WMAV2,
+ .id = AV_CODEC_ID_WMAV2,
.priv_data_size = sizeof(WMACodecContext),
.init = encode_init,
.encode2 = encode_superframe,
.close = ff_wma_end,
- .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
+ .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP,
+ AV_SAMPLE_FMT_NONE },
};
projects / ffmpeg / blobdiff