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avcodec/a64multienc: Avoid intermediate buffer

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-04-29 22:07:33 +02:00
parent 7c451b609c
commit 8dbf0cc893
1 changed files with 2 additions and 9 deletions
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11
libavcodec/a64multienc.c
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@ -50,7 +50,6 @@ typedef struct A64Context {
int *mc_charmap;
int *mc_best_cb;
int mc_luma_vals[5];
uint8_t *mc_charset;
uint8_t *mc_colram;
uint8_t *mc_palette;
int mc_pal_size;
@ -197,7 +196,6 @@ static av_cold int a64multi_close_encoder(AVCodecContext *avctx)
A64Context *c = avctx->priv_data;
av_freep(&c->mc_meta_charset);
av_freep(&c->mc_best_cb);
av_freep(&c->mc_charset);
av_freep(&c->mc_charmap);
av_freep(&c->mc_colram);
return 0;
@ -231,8 +229,7 @@ static av_cold int a64multi_encode_init(AVCodecContext *avctx)
if (!(c->mc_meta_charset = av_mallocz_array(c->mc_lifetime, 32000 * sizeof(int))) ||
!(c->mc_best_cb = av_malloc(CHARSET_CHARS * 32 * sizeof(int))) ||
!(c->mc_charmap = av_mallocz_array(c->mc_lifetime, 1000 * sizeof(int))) ||
!(c->mc_colram = av_mallocz(CHARSET_CHARS * sizeof(uint8_t))) ||
!(c->mc_charset = av_malloc(0x800 * (INTERLACED+1) * sizeof(uint8_t)))) {
!(c->mc_colram = av_mallocz(CHARSET_CHARS * sizeof(uint8_t)))) {
av_log(avctx, AV_LOG_ERROR, "Failed to allocate buffer memory.\n");
return AVERROR(ENOMEM);
}
@ -284,7 +281,6 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
int *charmap = c->mc_charmap;
uint8_t *colram = c->mc_colram;
uint8_t *charset = c->mc_charset;
int *meta = c->mc_meta_charset;
int *best_cb = c->mc_best_cb;
@ -346,10 +342,7 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
return ret;
/* create colorram map and a c64 readable charset */
render_charset(avctx, charset, colram);
/* copy charset to buf */
memcpy(buf, charset, charset_size);
render_charset(avctx, buf, colram);
/* advance pointers */
buf += charset_size;