n = frame->nb_samples - 1;
+ /* NB: This is safe as we don't have AV_CODEC_CAP_SMALL_LAST_FRAME. */
+ av_assert0(n == 4095);
+
// store AdpcmCodeSize
put_bits(&pb, 2, 2); // set 4-bit flash adpcm format
}
if (avctx->trellis > 0) {
- if (!(buf = av_malloc(2 * n)))
- return AVERROR(ENOMEM);
+ uint8_t buf[8190 /* = 2 * n */];
adpcm_compress_trellis(avctx, samples + avctx->channels, buf,
&c->status[0], n, avctx->channels);
if (avctx->channels == 2)
if (avctx->channels == 2)
put_bits(&pb, 4, buf[n + i]);
}
- av_free(buf);
} else {
for (i = 1; i < frame->nb_samples; i++) {
put_bits(&pb, 4, adpcm_ima_compress_sample(&c->status[0],
{ NULL }
};
-static const AVClass adpcm_encoder_class = {
- .class_name = "ADPCM Encoder",
- .item_name = av_default_item_name,
- .option = options,
- .version = LIBAVUTIL_VERSION_INT,
-};
-
#define ADPCM_ENCODER(id_, name_, sample_fmts_, capabilities_, long_name_) \
+static const AVClass name_ ## _encoder_class = { \
+ .class_name = #name_, \
+ .item_name = av_default_item_name, \
+ .option = options, \
+ .version = LIBAVUTIL_VERSION_INT, \
+}; \
+ \
AVCodec ff_ ## name_ ## _encoder = { \
.name = #name_, \
.long_name = NULL_IF_CONFIG_SMALL(long_name_), \
.close = adpcm_encode_close, \
.sample_fmts = sample_fmts_, \
.capabilities = capabilities_, \
- .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, \
- .priv_class = &adpcm_encoder_class, \
+ .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_INIT_THREADSAFE, \
+ .priv_class = &name_ ## _encoder_class, \
}
ADPCM_ENCODER(AV_CODEC_ID_ADPCM_ARGO, adpcm_argo, sample_fmts_p, 0, "ADPCM Argonaut Games");