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Setting proper values in extradata for future use in muxer 

Originally committed as revision 24939 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Tobias Bindhammer 2010-08-26 10:02:59 +00:00
parent e0ae6c17fe
commit 99d8166daf
1 changed files with 14 additions and 0 deletions
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14
libavcodec/a64multienc.c
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@ -199,6 +199,12 @@ static av_cold int a64multi_init_encoder(AVCodecContext *avctx)
c->mc_colram = av_mallocz(CHARSET_CHARS * sizeof(uint8_t));
c->mc_charset = av_malloc (0x800 * (INTERLACED+1) * sizeof(uint8_t));
/* set up extradata */
avctx->extradata = av_mallocz(8 * 4 + FF_INPUT_BUFFER_PADDING_SIZE);
avctx->extradata_size = 8 * 4;
AV_WB32(avctx->extradata, c->mc_lifetime);
AV_WB32(avctx->extradata+16, INTERLACED);
avcodec_get_frame_defaults(&c->picture);
avctx->coded_frame = &c->picture;
avctx->coded_frame->pict_type = FF_I_TYPE;
@ -243,6 +249,10 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
int *meta = c->mc_meta_charset;
int *best_cb = c->mc_best_cb;
int charset_size = 0x800 * (INTERLACED + 1);
int screen_size = 0x400;
int colram_size = 0x100 * c->mc_use_5col;
/* no data, means end encoding asap */
if (!data) {
/* all done, end encoding */
@ -314,6 +324,10 @@ static int a64multi_encode_frame(AVCodecContext *avctx, unsigned char *buf,
charmap += 1000;
}
AV_WB32(avctx->extradata+4, c->mc_frame_counter);
AV_WB32(avctx->extradata+8, charset_size);
AV_WB32(avctx->extradata+12, screen_size + colram_size);
/* reset counter */
c->mc_frame_counter = 0;