summaryrefslogtreecommitdiff
path: root/ffmpeg/libavcodec/takdec.c
diff options
context:
space:
mode:
authorTim Redfern <tim@eclectronics.org>2013-12-29 12:19:38 +0000
committerTim Redfern <tim@eclectronics.org>2013-12-29 12:19:38 +0000
commitf7813a5324be39d13ab536c245d15dfc602a7849 (patch)
treefad99148b88823d34a5df2f0a25881a002eb291b /ffmpeg/libavcodec/takdec.c
parentb7a5a477b8ff4d4e3028b9dfb9a9df0a41463f92 (diff)
basic type mechanism working
Diffstat (limited to 'ffmpeg/libavcodec/takdec.c')
-rw-r--r--ffmpeg/libavcodec/takdec.c68
1 files changed, 40 insertions, 28 deletions
diff --git a/ffmpeg/libavcodec/takdec.c b/ffmpeg/libavcodec/takdec.c
index 43382f1..fcbe10a 100644
--- a/ffmpeg/libavcodec/takdec.c
+++ b/ffmpeg/libavcodec/takdec.c
@@ -28,6 +28,7 @@
#include "libavutil/internal.h"
#include "libavutil/samplefmt.h"
#include "tak.h"
+#include "thread.h"
#include "avcodec.h"
#include "dsputil.h"
#include "internal.h"
@@ -170,7 +171,6 @@ static av_cold int tak_decode_init(AVCodecContext *avctx)
{
TAKDecContext *s = avctx->priv_data;
- ff_tak_init_crc();
ff_dsputil_init(&s->dsp, avctx);
s->avctx = avctx;
@@ -468,27 +468,14 @@ static int decode_subframe(TAKDecContext *s, int32_t *decoded,
for (i = 0; i < tmp; i++) {
int v = 1 << (filter_quant - 1);
- if (!(filter_order & 15)) {
+ if (filter_order & -16)
v += s->dsp.scalarproduct_int16(&s->residues[i], s->filter,
- filter_order);
- } else if (filter_order & 4) {
- for (j = 0; j < filter_order; j += 4) {
- v += s->residues[i + j + 3] * s->filter[j + 3] +
- s->residues[i + j + 2] * s->filter[j + 2] +
- s->residues[i + j + 1] * s->filter[j + 1] +
- s->residues[i + j ] * s->filter[j ];
- }
- } else {
- for (j = 0; j < filter_order; j += 8) {
- v += s->residues[i + j + 7] * s->filter[j + 7] +
- s->residues[i + j + 6] * s->filter[j + 6] +
- s->residues[i + j + 5] * s->filter[j + 5] +
- s->residues[i + j + 4] * s->filter[j + 4] +
- s->residues[i + j + 3] * s->filter[j + 3] +
- s->residues[i + j + 2] * s->filter[j + 2] +
- s->residues[i + j + 1] * s->filter[j + 1] +
- s->residues[i + j ] * s->filter[j ];
- }
+ filter_order & -16);
+ for (j = filter_order & -16; j < filter_order; j += 4) {
+ v += s->residues[i + j + 3] * s->filter[j + 3] +
+ s->residues[i + j + 2] * s->filter[j + 2] +
+ s->residues[i + j + 1] * s->filter[j + 1] +
+ s->residues[i + j ] * s->filter[j ];
}
v = (av_clip(v >> filter_quant, -8192, 8191) << dshift) - *decoded;
*decoded++ = v;
@@ -686,6 +673,7 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
{
TAKDecContext *s = avctx->priv_data;
AVFrame *frame = data;
+ ThreadFrame tframe = { .f = data };
GetBitContext *gb = &s->gb;
int chan, i, ret, hsize;
@@ -698,11 +686,12 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
if ((ret = ff_tak_decode_frame_header(avctx, gb, &s->ti, 0)) < 0)
return ret;
- if (avctx->err_recognition & AV_EF_CRCCHECK) {
+ if (avctx->err_recognition & (AV_EF_CRCCHECK|AV_EF_COMPLIANT)) {
hsize = get_bits_count(gb) / 8;
if (ff_tak_check_crc(pkt->data, hsize)) {
av_log(avctx, AV_LOG_ERROR, "CRC error\n");
- return AVERROR_INVALIDDATA;
+ if (avctx->err_recognition & AV_EF_EXPLODE)
+ return AVERROR_INVALIDDATA;
}
}
@@ -749,8 +738,9 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
: s->ti.frame_samples;
frame->nb_samples = s->nb_samples;
- if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
+ if ((ret = ff_thread_get_buffer(avctx, &tframe, 0)) < 0)
return ret;
+ ff_thread_finish_setup(avctx);
if (avctx->bits_per_raw_sample <= 16) {
int buf_size = av_samples_get_buffer_size(NULL, avctx->channels,
@@ -872,11 +862,12 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
else if (get_bits_left(gb) > 0)
av_log(avctx, AV_LOG_DEBUG, "underread\n");
- if (avctx->err_recognition & AV_EF_CRCCHECK) {
+ if (avctx->err_recognition & (AV_EF_CRCCHECK | AV_EF_COMPLIANT)) {
if (ff_tak_check_crc(pkt->data + hsize,
get_bits_count(gb) / 8 - hsize)) {
av_log(avctx, AV_LOG_ERROR, "CRC error\n");
- return AVERROR_INVALIDDATA;
+ if (avctx->err_recognition & AV_EF_EXPLODE)
+ return AVERROR_INVALIDDATA;
}
}
@@ -912,6 +903,25 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
return pkt->size;
}
+static int init_thread_copy(AVCodecContext *avctx)
+{
+ TAKDecContext *s = avctx->priv_data;
+ s->avctx = avctx;
+ return 0;
+}
+
+static int update_thread_context(AVCodecContext *dst,
+ const AVCodecContext *src)
+{
+ TAKDecContext *tsrc = src->priv_data;
+ TAKDecContext *tdst = dst->priv_data;
+
+ if (dst == src)
+ return 0;
+ memcpy(&tdst->ti, &tsrc->ti, sizeof(TAKStreamInfo));
+ return 0;
+}
+
static av_cold int tak_decode_close(AVCodecContext *avctx)
{
TAKDecContext *s = avctx->priv_data;
@@ -923,14 +933,16 @@ static av_cold int tak_decode_close(AVCodecContext *avctx)
AVCodec ff_tak_decoder = {
.name = "tak",
+ .long_name = NULL_IF_CONFIG_SMALL("TAK (Tom's lossless Audio Kompressor)"),
.type = AVMEDIA_TYPE_AUDIO,
.id = AV_CODEC_ID_TAK,
.priv_data_size = sizeof(TAKDecContext),
.init = tak_decode_init,
.close = tak_decode_close,
.decode = tak_decode_frame,
- .capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("TAK (Tom's lossless Audio Kompressor)"),
+ .init_thread_copy = ONLY_IF_THREADS_ENABLED(init_thread_copy),
+ .update_thread_context = ONLY_IF_THREADS_ENABLED(update_thread_context),
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_U8P,
AV_SAMPLE_FMT_S16P,
AV_SAMPLE_FMT_S32P,