#include "libavutil/avassert.h"
#include "avcodec.h"
+#include "internal.h"
#include "libavutil/common.h"
/** decoder context */
*state = val;
}
-static void raw_decode(uint8_t *dst, const int8_t *src, int src_size)
-{
- while (src_size--)
- *dst++ = *src++ + 128;
-}
-
/** decode a frame */
static int eightsvx_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
EightSvxContext *esc = avctx->priv_data;
int buf_size;
int ch, ret;
- int is_compr = (avctx->codec_id != AV_CODEC_ID_PCM_S8_PLANAR);
- int hdr_size = is_compr ? 2 : 0;
+ int hdr_size = 2;
/* decode and interleave the first packet */
if (!esc->data[0] && avpkt) {
return AVERROR(EINVAL);
}
- if (is_compr) {
- esc->fib_acc[0] = avpkt->data[1] + 128;
- if (avctx->channels == 2)
- esc->fib_acc[1] = avpkt->data[2+chan_size+1] + 128;
- }
+ esc->fib_acc[0] = avpkt->data[1] + 128;
+ if (avctx->channels == 2)
+ esc->fib_acc[1] = avpkt->data[2+chan_size+1] + 128;
esc->data_idx = 0;
esc->data_size = chan_size;
}
/* get output buffer */
- esc->frame.nb_samples = buf_size * (is_compr + 1);
- if ((ret = avctx->get_buffer(avctx, &esc->frame)) < 0) {
+ esc->frame.nb_samples = buf_size * 2;
+ if ((ret = ff_get_buffer(avctx, &esc->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
for (ch = 0; ch < avctx->channels; ch++) {
- if (is_compr) {
- delta_decode(esc->frame.data[ch], &esc->data[ch][esc->data_idx],
- buf_size, &esc->fib_acc[ch], esc->table);
- } else {
- raw_decode(esc->frame.data[ch], &esc->data[ch][esc->data_idx],
- buf_size);
- }
+ delta_decode(esc->frame.data[ch], &esc->data[ch][esc->data_idx],
+ buf_size, &esc->fib_acc[ch], esc->table);
}
esc->data_idx += buf_size;
switch (avctx->codec->id) {
case AV_CODEC_ID_8SVX_FIB: esc->table = fibonacci; break;
case AV_CODEC_ID_8SVX_EXP: esc->table = exponential; break;
- case AV_CODEC_ID_PCM_S8_PLANAR:
- case AV_CODEC_ID_8SVX_RAW: esc->table = NULL; break;
default:
av_log(avctx, AV_LOG_ERROR, "Invalid codec id %d.\n", avctx->codec->id);
return AVERROR_INVALIDDATA;
AV_SAMPLE_FMT_NONE },
};
#endif
-#if CONFIG_PCM_S8_PLANAR_DECODER
-AVCodec ff_pcm_s8_planar_decoder = {
- .name = "pcm_s8_planar",
- .type = AVMEDIA_TYPE_AUDIO,
- .id = AV_CODEC_ID_PCM_S8_PLANAR,
- .priv_data_size = sizeof(EightSvxContext),
- .init = eightsvx_decode_init,
- .close = eightsvx_decode_close,
- .decode = eightsvx_decode_frame,
- .capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("PCM signed 8-bit planar"),
- .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_U8P,
- AV_SAMPLE_FMT_NONE },
-};
-#endif