#include "bytestream.h"
#include "adpcm.h"
#include "adpcm_data.h"
+#include "internal.h"
/**
* @file
ADPCMEncodeContext *s = avctx->priv_data;
uint8_t *extradata;
int i;
- if (avctx->channels > 2)
- return -1; /* only stereo or mono =) */
+ int ret = AVERROR(ENOMEM);
+
+ if (avctx->channels > 2) {
+ av_log(avctx, AV_LOG_ERROR, "only stereo or mono is supported\n");
+ return AVERROR(EINVAL);
+ }
if (avctx->trellis && (unsigned)avctx->trellis > 16U) {
av_log(avctx, AV_LOG_ERROR, "invalid trellis size\n");
- return -1;
+ return AVERROR(EINVAL);
}
if (avctx->trellis) {
avctx->frame_size = (BLKSIZE - 7 * avctx->channels) * 2 /
avctx->channels + 2;
avctx->block_align = BLKSIZE;
+ if (!(avctx->extradata = av_malloc(32 + FF_INPUT_BUFFER_PADDING_SIZE)))
+ goto error;
avctx->extradata_size = 32;
- extradata = avctx->extradata = av_malloc(avctx->extradata_size);
- if (!extradata)
- return AVERROR(ENOMEM);
+ extradata = avctx->extradata;
bytestream_put_le16(&extradata, avctx->frame_size);
bytestream_put_le16(&extradata, 7); /* wNumCoef */
for (i = 0; i < 7; i++) {
}
break;
case CODEC_ID_ADPCM_YAMAHA:
- avctx->frame_size = BLKSIZE * avctx->channels;
+ avctx->frame_size = BLKSIZE * 2 / avctx->channels;
avctx->block_align = BLKSIZE;
break;
case CODEC_ID_ADPCM_SWF:
avctx->sample_rate != 44100) {
av_log(avctx, AV_LOG_ERROR, "Sample rate must be 11025, "
"22050 or 44100\n");
+ ret = AVERROR(EINVAL);
goto error;
}
avctx->frame_size = 512 * (avctx->sample_rate / 11025);
break;
default:
+ ret = AVERROR(EINVAL);
goto error;
}
- avctx->coded_frame = avcodec_alloc_frame();
+#if FF_API_OLD_ENCODE_AUDIO
+ if (!(avctx->coded_frame = avcodec_alloc_frame()))
+ goto error;
+#endif
return 0;
error:
av_freep(&s->node_buf);
av_freep(&s->nodep_buf);
av_freep(&s->trellis_hash);
- return -1;
+ return ret;
}
static av_cold int adpcm_encode_close(AVCodecContext *avctx)
{
ADPCMEncodeContext *s = avctx->priv_data;
+#if FF_API_OLD_ENCODE_AUDIO
av_freep(&avctx->coded_frame);
+#endif
av_freep(&s->paths);
av_freep(&s->node_buf);
av_freep(&s->nodep_buf);
}
-static inline unsigned char adpcm_ima_compress_sample(ADPCMChannelStatus *c,
- short sample)
+static inline uint8_t adpcm_ima_compress_sample(ADPCMChannelStatus *c,
+ int16_t sample)
{
int delta = sample - c->prev_sample;
int nibble = FFMIN(7, abs(delta) * 4 /
return nibble;
}
-static inline unsigned char adpcm_ima_qt_compress_sample(ADPCMChannelStatus *c,
- short sample)
+static inline uint8_t adpcm_ima_qt_compress_sample(ADPCMChannelStatus *c,
+ int16_t sample)
{
int delta = sample - c->prev_sample;
int mask, step = ff_adpcm_step_table[c->step_index];
return nibble;
}
-static inline unsigned char adpcm_ms_compress_sample(ADPCMChannelStatus *c,
- short sample)
+static inline uint8_t adpcm_ms_compress_sample(ADPCMChannelStatus *c,
+ int16_t sample)
{
int predictor, nibble, bias;
nibble = (nibble + bias) / c->idelta;
nibble = av_clip(nibble, -8, 7) & 0x0F;
- predictor += (signed)((nibble & 0x08) ? (nibble - 0x10) : nibble) * c->idelta;
+ predictor += ((nibble & 0x08) ? (nibble - 0x10) : nibble) * c->idelta;
c->sample2 = c->sample1;
c->sample1 = av_clip_int16(predictor);
- c->idelta = (ff_adpcm_AdaptationTable[(int)nibble] * c->idelta) >> 8;
+ c->idelta = (ff_adpcm_AdaptationTable[nibble] * c->idelta) >> 8;
if (c->idelta < 16)
c->idelta = 16;
return nibble;
}
-static inline unsigned char adpcm_yamaha_compress_sample(ADPCMChannelStatus *c,
- short sample)
+static inline uint8_t adpcm_yamaha_compress_sample(ADPCMChannelStatus *c,
+ int16_t sample)
{
int nibble, delta;
return nibble;
}
-static void adpcm_compress_trellis(AVCodecContext *avctx, const short *samples,
- uint8_t *dst, ADPCMChannelStatus *c, int n)
+static void adpcm_compress_trellis(AVCodecContext *avctx,
+ const int16_t *samples, uint8_t *dst,
+ ADPCMChannelStatus *c, int n)
{
//FIXME 6% faster if frontier is a compile-time constant
ADPCMEncodeContext *s = avctx->priv_data;
c->idelta = nodes[0]->step;
}
-static int adpcm_encode_frame(AVCodecContext *avctx,
- unsigned char *frame, int buf_size, void *data)
+static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+ const AVFrame *frame, int *got_packet_ptr)
{
- int n, i, st;
- short *samples;
- unsigned char *dst;
+ int n, i, st, pkt_size, ret;
+ const int16_t *samples;
+ uint8_t *dst;
ADPCMEncodeContext *c = avctx->priv_data;
uint8_t *buf;
- dst = frame;
- samples = (short *)data;
+ samples = (const int16_t *)frame->data[0];
st = avctx->channels == 2;
- /* n = (BLKSIZE - 4 * avctx->channels) / (2 * 8 * avctx->channels); */
+
+ if (avctx->codec_id == CODEC_ID_ADPCM_SWF)
+ pkt_size = (2 + avctx->channels * (22 + 4 * (frame->nb_samples - 1)) + 7) / 8;
+ else
+ pkt_size = avctx->block_align;
+ if ((ret = ff_alloc_packet(avpkt, pkt_size))) {
+ av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");
+ return ret;
+ }
+ dst = avpkt->data;
switch(avctx->codec->id) {
case CODEC_ID_ADPCM_IMA_WAV:
- n = avctx->frame_size / 8;
- c->status[0].prev_sample = (signed short)samples[0]; /* XXX */
+ n = frame->nb_samples / 8;
+ c->status[0].prev_sample = samples[0];
/* c->status[0].step_index = 0;
XXX: not sure how to init the state machine */
bytestream_put_le16(&dst, c->status[0].prev_sample);
- *dst++ = (unsigned char)c->status[0].step_index;
+ *dst++ = c->status[0].step_index;
*dst++ = 0; /* unknown */
samples++;
if (avctx->channels == 2) {
- c->status[1].prev_sample = (signed short)samples[0];
+ c->status[1].prev_sample = samples[0];
/* c->status[1].step_index = 0; */
bytestream_put_le16(&dst, c->status[1].prev_sample);
- *dst++ = (unsigned char)c->status[1].step_index;
+ *dst++ = c->status[1].step_index;
*dst++ = 0;
samples++;
}
{
int ch, i;
PutBitContext pb;
- init_put_bits(&pb, dst, buf_size * 8);
+ init_put_bits(&pb, dst, pkt_size * 8);
for (ch = 0; ch < avctx->channels; ch++) {
put_bits(&pb, 9, (c->status[ch].prev_sample + 0x10000) >> 7);
}
flush_put_bits(&pb);
- dst += put_bits_count(&pb) >> 3;
break;
}
case CODEC_ID_ADPCM_SWF:
{
int i;
PutBitContext pb;
- init_put_bits(&pb, dst, buf_size * 8);
+ init_put_bits(&pb, dst, pkt_size * 8);
- n = avctx->frame_size - 1;
+ n = frame->nb_samples - 1;
// store AdpcmCodeSize
put_bits(&pb, 2, 2); // set 4-bit flash adpcm format
c->status[i].step_index = av_clip(c->status[i].step_index, 0, 63);
put_sbits(&pb, 16, samples[i]);
put_bits(&pb, 6, c->status[i].step_index);
- c->status[i].prev_sample = (signed short)samples[i];
+ c->status[i].prev_sample = samples[i];
}
if (avctx->trellis > 0) {
}
av_free(buf);
} else {
- for (i = 1; i < avctx->frame_size; i++) {
+ for (i = 1; i < frame->nb_samples; i++) {
put_bits(&pb, 4, adpcm_ima_compress_sample(&c->status[0],
samples[avctx->channels * i]));
if (avctx->channels == 2)
}
}
flush_put_bits(&pb);
- dst += put_bits_count(&pb) >> 3;
break;
}
case CODEC_ID_ADPCM_MS:
}
break;
case CODEC_ID_ADPCM_YAMAHA:
- n = avctx->frame_size / 2;
+ n = frame->nb_samples / 2;
if (avctx->trellis > 0) {
FF_ALLOC_OR_GOTO(avctx, buf, 2 * n * 2, error);
n *= 2;
}
break;
default:
- error:
- return -1;
+ return AVERROR(EINVAL);
}
- return dst - frame;
+
+ avpkt->size = pkt_size;
+ *got_packet_ptr = 1;
+ return 0;
+error:
+ return AVERROR(ENOMEM);
}
.id = id_, \
.priv_data_size = sizeof(ADPCMEncodeContext), \
.init = adpcm_encode_init, \
- .encode = adpcm_encode_frame, \
+ .encode2 = adpcm_encode_frame, \
.close = adpcm_encode_close, \
- .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_S16, \
- AV_SAMPLE_FMT_NONE}, \
+ .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_S16, \
+ AV_SAMPLE_FMT_NONE }, \
.long_name = NULL_IF_CONFIG_SMALL(long_name_), \
}
projects / ffmpeg / blobdiff