generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

simplify

Browse Source 
Originally committed as revision 5573 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-07-02 11:06:27 +00:00
parent a403fc0324
commit 7c69b83057
1 changed files with 11 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
libavcodec/flacenc.c
View File

@ -168,7 +168,7 @@ static int flac_encode_init(AVCodecContext *avctx)
int freq = avctx->sample_rate; int freq = avctx->sample_rate;
int channels = avctx->channels; int channels = avctx->channels;
FlacEncodeContext *s = avctx->priv_data; FlacEncodeContext *s = avctx->priv_data;
int i; int i, level;
uint8_t *streaminfo; uint8_t *streaminfo;
s->avctx = avctx; s->avctx = avctx;
@ -219,60 +219,21 @@ static int flac_encode_init(AVCodecContext *avctx)
} }
av_log(avctx, AV_LOG_DEBUG, " compression: %d\n", s->options.compression_level); av_log(avctx, AV_LOG_DEBUG, " compression: %d\n", s->options.compression_level);
if(s->options.compression_level == 0) { level= s->options.compression_level;
s->options.block_time_ms = 27; if(level > 5) {
s->options.use_lpc = 0;
s->options.min_prediction_order = 2;
s->options.max_prediction_order = 3;
s->options.prediction_order_method = ORDER_METHOD_EST;
s->options.min_partition_order = 2;
s->options.max_partition_order = 2;
} else if(s->options.compression_level == 1) {
s->options.block_time_ms = 27;
s->options.use_lpc = 0;
s->options.min_prediction_order = 0;
s->options.max_prediction_order = 4;
s->options.prediction_order_method = ORDER_METHOD_EST;
s->options.min_partition_order = 2;
s->options.max_partition_order = 2;
} else if(s->options.compression_level == 2) {
s->options.block_time_ms = 27;
s->options.use_lpc = 0;
s->options.min_prediction_order = 0;
s->options.max_prediction_order = 4;
s->options.prediction_order_method = ORDER_METHOD_EST;
s->options.min_partition_order = 0;
s->options.max_partition_order = 3;
} else if(s->options.compression_level == 3) {
s->options.block_time_ms = 105;
s->options.use_lpc = 1;
s->options.min_prediction_order = 1;
s->options.max_prediction_order = 6;
s->options.prediction_order_method = ORDER_METHOD_EST;
s->options.min_partition_order = 0;
s->options.max_partition_order = 3;
} else if(s->options.compression_level == 4) {
s->options.block_time_ms = 105;
s->options.use_lpc = 1;
s->options.min_prediction_order = 1;
s->options.max_prediction_order = 8;
s->options.prediction_order_method = ORDER_METHOD_EST;
s->options.min_partition_order = 0;
s->options.max_partition_order = 3;
} else if(s->options.compression_level == 5) {
s->options.block_time_ms = 105;
s->options.use_lpc = 1;
s->options.min_prediction_order = 1;
s->options.max_prediction_order = 8;
s->options.prediction_order_method = ORDER_METHOD_EST;
s->options.min_partition_order = 0;
s->options.max_partition_order = 8;
} else {
av_log(avctx, AV_LOG_ERROR, "invalid compression level: %d\n", av_log(avctx, AV_LOG_ERROR, "invalid compression level: %d\n",
s->options.compression_level); s->options.compression_level);
return -1; return -1;
} }
s->options.block_time_ms = ((int[]){ 27, 27, 27,105,105,105})[level];
s->options.use_lpc = ((int[]){ 0, 0, 0, 1, 1, 1})[level];
s->options.min_prediction_order= ((int[]){ 2, 0, 0, 1, 1, 1})[level];
s->options.max_prediction_order= ((int[]){ 3, 4, 4, 6, 8, 8})[level];
s->options.prediction_order_method = ORDER_METHOD_EST;
s->options.min_partition_order = ((int[]){ 2, 2, 0, 0, 0, 0})[level];
s->options.max_partition_order = ((int[]){ 2, 2, 3, 3, 3, 8})[level];
/* set compression option overrides from AVCodecContext */ /* set compression option overrides from AVCodecContext */
if(avctx->use_lpc >= 0) { if(avctx->use_lpc >= 0) {
s->options.use_lpc = !!avctx->use_lpc; s->options.use_lpc = !!avctx->use_lpc;