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author | Justin Ruggles <justin.ruggles@gmail.com> | 2012-08-25 09:13:50 -0400 |
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committer | Justin Ruggles <justin.ruggles@gmail.com> | 2012-10-06 12:25:33 -0400 |
commit | 095be4fbf690e5241f8e3bd6f6fce80e787533fa (patch) | |
tree | 08d735a028757b6cb93685efe1b320eb026fea65 /libavcodec/adpcmenc.c | |
parent | d9a13c2f5644915dcae538b8523014b7dbc5ff5a (diff) | |
download | ffmpeg-095be4fbf690e5241f8e3bd6f6fce80e787533fa.tar.gz |
adpcmenc: use planar sample format for adpcm_ima_wav and adpcm_ima_qt
Diffstat (limited to 'libavcodec/adpcmenc.c')
-rw-r--r-- | libavcodec/adpcmenc.c | 72 |
1 files changed, 42 insertions, 30 deletions
diff --git a/libavcodec/adpcmenc.c b/libavcodec/adpcmenc.c index 157e475705..5c95ad7363 100644 --- a/libavcodec/adpcmenc.c +++ b/libavcodec/adpcmenc.c @@ -271,12 +271,11 @@ static inline uint8_t adpcm_yamaha_compress_sample(ADPCMChannelStatus *c, static void adpcm_compress_trellis(AVCodecContext *avctx, const int16_t *samples, uint8_t *dst, - ADPCMChannelStatus *c, int n) + ADPCMChannelStatus *c, int n, int stride) { //FIXME 6% faster if frontier is a compile-time constant ADPCMEncodeContext *s = avctx->priv_data; const int frontier = 1 << avctx->trellis; - const int stride = avctx->channels; const int version = avctx->codec->id; TrellisPath *paths = s->paths, *p; TrellisNode *node_buf = s->node_buf; @@ -480,11 +479,13 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, { int n, i, ch, st, pkt_size, ret; const int16_t *samples; + int16_t **samples_p; uint8_t *dst; ADPCMEncodeContext *c = avctx->priv_data; uint8_t *buf; samples = (const int16_t *)frame->data[0]; + samples_p = (int16_t **)frame->extended_data; st = avctx->channels == 2; if (avctx->codec_id == AV_CODEC_ID_ADPCM_SWF) @@ -506,7 +507,7 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, for (ch = 0; ch < avctx->channels; ch++) { ADPCMChannelStatus *status = &c->status[ch]; - status->prev_sample = samples[ch]; + status->prev_sample = samples_p[ch][0]; /* status->step_index = 0; XXX: not sure how to init the state machine */ bytestream_put_le16(&dst, status->prev_sample); @@ -518,9 +519,9 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, if (avctx->trellis > 0) { FF_ALLOC_OR_GOTO(avctx, buf, avctx->channels * blocks * 8, error); for (ch = 0; ch < avctx->channels; ch++) { - adpcm_compress_trellis(avctx, &samples[avctx->channels + ch], + adpcm_compress_trellis(avctx, &samples_p[ch][1], buf + ch * blocks * 8, &c->status[ch], - blocks * 8); + blocks * 8, 1); } for (i = 0; i < blocks; i++) { for (ch = 0; ch < avctx->channels; ch++) { @@ -534,10 +535,10 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, for (i = 0; i < blocks; i++) { for (ch = 0; ch < avctx->channels; ch++) { ADPCMChannelStatus *status = &c->status[ch]; - const int16_t *smp = &samples[avctx->channels * (1 + i * 8) + ch]; + const int16_t *smp = &samples_p[ch][1 + i * 8]; for (j = 0; j < 8; j += 2) { - *dst++ = adpcm_ima_compress_sample(status, smp[avctx->channels * j ]) | - (adpcm_ima_compress_sample(status, smp[avctx->channels * (j + 1)]) << 4); + *dst++ = adpcm_ima_compress_sample(status, smp[j ]) | + (adpcm_ima_compress_sample(status, smp[j + 1]) << 4); } } } @@ -550,20 +551,20 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, init_put_bits(&pb, dst, pkt_size * 8); for (ch = 0; ch < avctx->channels; ch++) { - put_bits(&pb, 9, (c->status[ch].prev_sample & 0xFFFF) >> 7); - put_bits(&pb, 7, c->status[ch].step_index); + ADPCMChannelStatus *status = &c->status[ch]; + put_bits(&pb, 9, (status->prev_sample & 0xFFFF) >> 7); + put_bits(&pb, 7, status->step_index); if (avctx->trellis > 0) { uint8_t buf[64]; - adpcm_compress_trellis(avctx, samples+ch, buf, &c->status[ch], 64); + adpcm_compress_trellis(avctx, &samples_p[ch][1], buf, status, + 64, 1); for (i = 0; i < 64; i++) put_bits(&pb, 4, buf[i ^ 1]); } else { for (i = 0; i < 64; i += 2) { int t1, t2; - t1 = adpcm_ima_qt_compress_sample(&c->status[ch], - samples[avctx->channels * (i + 0) + ch]); - t2 = adpcm_ima_qt_compress_sample(&c->status[ch], - samples[avctx->channels * (i + 1) + ch]); + t1 = adpcm_ima_qt_compress_sample(status, samples_p[ch][i ]); + t2 = adpcm_ima_qt_compress_sample(status, samples_p[ch][i + 1]); put_bits(&pb, 4, t2); put_bits(&pb, 4, t1); } @@ -595,10 +596,11 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, if (avctx->trellis > 0) { FF_ALLOC_OR_GOTO(avctx, buf, 2 * n, error); adpcm_compress_trellis(avctx, samples + avctx->channels, buf, - &c->status[0], n); + &c->status[0], n, avctx->channels); if (avctx->channels == 2) adpcm_compress_trellis(avctx, samples + avctx->channels + 1, - buf + n, &c->status[1], n); + buf + n, &c->status[1], n, + avctx->channels); for (i = 0; i < n; i++) { put_bits(&pb, 4, buf[i]); if (avctx->channels == 2) @@ -642,12 +644,15 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, n = avctx->block_align - 7 * avctx->channels; FF_ALLOC_OR_GOTO(avctx, buf, 2 * n, error); if (avctx->channels == 1) { - adpcm_compress_trellis(avctx, samples, buf, &c->status[0], n); + adpcm_compress_trellis(avctx, samples, buf, &c->status[0], n, + avctx->channels); for (i = 0; i < n; i += 2) *dst++ = (buf[i] << 4) | buf[i + 1]; } else { - adpcm_compress_trellis(avctx, samples, buf, &c->status[0], n); - adpcm_compress_trellis(avctx, samples + 1, buf + n, &c->status[1], n); + adpcm_compress_trellis(avctx, samples, buf, + &c->status[0], n, avctx->channels); + adpcm_compress_trellis(avctx, samples + 1, buf + n, + &c->status[1], n, avctx->channels); for (i = 0; i < n; i++) *dst++ = (buf[i] << 4) | buf[n + i]; } @@ -667,12 +672,15 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, FF_ALLOC_OR_GOTO(avctx, buf, 2 * n * 2, error); n *= 2; if (avctx->channels == 1) { - adpcm_compress_trellis(avctx, samples, buf, &c->status[0], n); + adpcm_compress_trellis(avctx, samples, buf, &c->status[0], n, + avctx->channels); for (i = 0; i < n; i += 2) *dst++ = buf[i] | (buf[i + 1] << 4); } else { - adpcm_compress_trellis(avctx, samples, buf, &c->status[0], n); - adpcm_compress_trellis(avctx, samples + 1, buf + n, &c->status[1], n); + adpcm_compress_trellis(avctx, samples, buf, + &c->status[0], n, avctx->channels); + adpcm_compress_trellis(avctx, samples + 1, buf + n, + &c->status[1], n, avctx->channels); for (i = 0; i < n; i++) *dst++ = buf[i] | (buf[n + i] << 4); } @@ -700,7 +708,11 @@ static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }; -#define ADPCM_ENCODER(id_, name_, long_name_) \ +static const enum AVSampleFormat sample_fmts_p[] = { + AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_NONE +}; + +#define ADPCM_ENCODER(id_, name_, sample_fmts_, long_name_) \ AVCodec ff_ ## name_ ## _encoder = { \ .name = #name_, \ .type = AVMEDIA_TYPE_AUDIO, \ @@ -709,12 +721,12 @@ AVCodec ff_ ## name_ ## _encoder = { \ .init = adpcm_encode_init, \ .encode2 = adpcm_encode_frame, \ .close = adpcm_encode_close, \ - .sample_fmts = sample_fmts, \ + .sample_fmts = sample_fmts_, \ .long_name = NULL_IF_CONFIG_SMALL(long_name_), \ } -ADPCM_ENCODER(AV_CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt, "ADPCM IMA QuickTime"); -ADPCM_ENCODER(AV_CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav, "ADPCM IMA WAV"); -ADPCM_ENCODER(AV_CODEC_ID_ADPCM_MS, adpcm_ms, "ADPCM Microsoft"); -ADPCM_ENCODER(AV_CODEC_ID_ADPCM_SWF, adpcm_swf, "ADPCM Shockwave Flash"); -ADPCM_ENCODER(AV_CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha, "ADPCM Yamaha"); +ADPCM_ENCODER(AV_CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt, sample_fmts_p, "ADPCM IMA QuickTime"); +ADPCM_ENCODER(AV_CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav, sample_fmts_p, "ADPCM IMA WAV"); +ADPCM_ENCODER(AV_CODEC_ID_ADPCM_MS, adpcm_ms, sample_fmts, "ADPCM Microsoft"); +ADPCM_ENCODER(AV_CODEC_ID_ADPCM_SWF, adpcm_swf, sample_fmts, "ADPCM Shockwave Flash"); +ADPCM_ENCODER(AV_CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha, sample_fmts, "ADPCM Yamaha"); |