* Fringe ADPCM codecs (e.g., DK3, DK4, Westwood)
* by Mike Melanson (melanson@pcisys.net)
*
- * Reference documents:
- * http://www.pcisys.net/~melanson/codecs/simpleaudio.html
- * http://www.geocities.com/SiliconValley/8682/aud3.txt
- * http://openquicktime.sourceforge.net/plugins.htm
- * XAnim sources (xa_codec.c) http://www.rasnaimaging.com/people/lapus/download.html
- * http://www.cs.ucla.edu/~leec/mediabench/applications.html
- * SoX source code http://home.sprynet.com/~cbagwell/sox.html
+ * See ADPCM decoder reference documents for codec information.
*/
typedef struct TrellisPath {
FF_ALLOC_OR_GOTO(avctx, s->trellis_hash, 65536 * sizeof(*s->trellis_hash), error);
}
+ avctx->bits_per_coded_sample = av_get_bits_per_sample(avctx->codec->id);
+
switch(avctx->codec->id) {
case CODEC_ID_ADPCM_IMA_WAV:
avctx->frame_size = (BLKSIZE - 4 * avctx->channels) * 8 / (4 * avctx->channels) + 1; /* each 16 bits sample gives one nibble */
}
-#define ADPCM_ENCODER(id,name,long_name_) \
-AVCodec ff_ ## name ## _encoder = { \
- #name, \
- AVMEDIA_TYPE_AUDIO, \
- id, \
- sizeof(ADPCMEncodeContext), \
- adpcm_encode_init, \
- adpcm_encode_frame, \
- adpcm_encode_close, \
- NULL, \
- .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE}, \
- .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
+#define ADPCM_ENCODER(id_, name_, long_name_) \
+AVCodec ff_ ## name_ ## _encoder = { \
+ .name = #name_, \
+ .type = AVMEDIA_TYPE_AUDIO, \
+ .id = id_, \
+ .priv_data_size = sizeof(ADPCMEncodeContext), \
+ .init = adpcm_encode_init, \
+ .encode = adpcm_encode_frame, \
+ .close = adpcm_encode_close, \
+ .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE}, \
+ .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
}
ADPCM_ENCODER(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt, "ADPCM IMA QuickTime");