0, 1, 2, 3, 4, 5, 6, 8
};
+typedef struct WSSndContext {
+ AVFrame frame;
+} WSSndContext;
+
static av_cold int ws_snd_decode_init(AVCodecContext *avctx)
{
+ WSSndContext *s = avctx->priv_data;
+
if (avctx->channels != 1) {
av_log_ask_for_sample(avctx, "unsupported number of channels\n");
return AVERROR(EINVAL);
}
avctx->sample_fmt = AV_SAMPLE_FMT_U8;
+
+ avcodec_get_frame_defaults(&s->frame);
+ avctx->coded_frame = &s->frame;
+
return 0;
}
static int ws_snd_decode_frame(AVCodecContext *avctx, void *data,
- int *data_size, AVPacket *avpkt)
+ int *got_frame_ptr, AVPacket *avpkt)
{
+ WSSndContext *s = avctx->priv_data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
- int in_size, out_size;
+ int in_size, out_size, ret;
int sample = 128;
- uint8_t *samples = data;
+ uint8_t *samples;
uint8_t *samples_end;
if (!buf_size)
in_size = AV_RL16(&buf[2]);
buf += 4;
- if (out_size > *data_size) {
- av_log(avctx, AV_LOG_ERROR, "Frame is too large to fit in buffer\n");
- return -1;
- }
if (in_size > buf_size) {
av_log(avctx, AV_LOG_ERROR, "Frame data is larger than input buffer\n");
return -1;
}
+
+ /* get output buffer */
+ s->frame.nb_samples = out_size;
+ if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+ samples = s->frame.data[0];
samples_end = samples + out_size;
if (in_size == out_size) {
memcpy(samples, buf, out_size);
- *data_size = out_size;
+ *got_frame_ptr = 1;
+ *(AVFrame *)data = s->frame;
return buf_size;
}
}
}
- *data_size = samples - (uint8_t *)data;
+ s->frame.nb_samples = samples - s->frame.data[0];
+ *got_frame_ptr = 1;
+ *(AVFrame *)data = s->frame;
return buf_size;
}
.name = "ws_snd1",
.type = AVMEDIA_TYPE_AUDIO,
.id = CODEC_ID_WESTWOOD_SND1,
+ .priv_data_size = sizeof(WSSndContext),
.init = ws_snd_decode_init,
.decode = ws_snd_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
.long_name = NULL_IF_CONFIG_SMALL("Westwood Audio (SND1)"),
};