#include "libavutil/intreadwrite.h"
#include "avcodec.h"
+#include "internal.h"
#include <zlib.h>
return bv;
}
-static int encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_size, void *data)
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *pict, int *got_packet)
{
ZmbvEncContext * const c = avctx->priv_data;
- AVFrame *pict = data;
AVFrame * const p = &c->pic;
- uint8_t *src, *prev;
+ uint8_t *src, *prev, *buf;
uint32_t *palptr;
- int len = 0;
int keyframe, chpal;
int fl;
- int work_size = 0;
+ int work_size = 0, pkt_size;
int bw, bh;
- int i, j;
+ int i, j, ret;
keyframe = !c->curfrm;
c->curfrm++;
p->key_frame= keyframe;
chpal = !keyframe && memcmp(p->data[1], c->pal2, 1024);
- fl = (keyframe ? ZMBV_KEYFRAME : 0) | (chpal ? ZMBV_DELTAPAL : 0);
- *buf++ = fl; len++;
- if(keyframe){
- deflateReset(&c->zstream);
- *buf++ = 0; len++; // hi ver
- *buf++ = 1; len++; // lo ver
- *buf++ = 1; len++; // comp
- *buf++ = 4; len++; // format - 8bpp
- *buf++ = ZMBV_BLOCK; len++; // block width
- *buf++ = ZMBV_BLOCK; len++; // block height
- }
palptr = (uint32_t*)p->data[1];
src = p->data[0];
prev = c->prev;
src += p->linesize[0];
}
+ if (keyframe)
+ deflateReset(&c->zstream);
+
c->zstream.next_in = c->work_buf;
c->zstream.avail_in = work_size;
c->zstream.total_in = 0;
return -1;
}
+ pkt_size = c->zstream.total_out + 1 + 6*keyframe;
+ if ((ret = ff_alloc_packet2(avctx, pkt, pkt_size)) < 0)
+ return ret;
+ buf = pkt->data;
+
+ fl = (keyframe ? ZMBV_KEYFRAME : 0) | (chpal ? ZMBV_DELTAPAL : 0);
+ *buf++ = fl;
+ if (keyframe) {
+ *buf++ = 0; // hi ver
+ *buf++ = 1; // lo ver
+ *buf++ = 1; // comp
+ *buf++ = 4; // format - 8bpp
+ *buf++ = ZMBV_BLOCK; // block width
+ *buf++ = ZMBV_BLOCK; // block height
+ }
memcpy(buf, c->comp_buf, c->zstream.total_out);
- return len + c->zstream.total_out;
+
+ pkt->flags |= AV_PKT_FLAG_KEY*keyframe;
+ *got_packet = 1;
+
+ return 0;
}
lvl = avctx->compression_level;
if(lvl < 0 || lvl > 9){
av_log(avctx, AV_LOG_ERROR, "Compression level should be 0-9, not %i\n", lvl);
- return -1;
+ return AVERROR(EINVAL);
}
// Needed if zlib unused or init aborted before deflateInit
((avctx->width + ZMBV_BLOCK - 1) / ZMBV_BLOCK) * ((avctx->height + ZMBV_BLOCK - 1) / ZMBV_BLOCK) * 2 + 4;
if ((c->work_buf = av_malloc(c->comp_size)) == NULL) {
av_log(avctx, AV_LOG_ERROR, "Can't allocate work buffer.\n");
- return -1;
+ return AVERROR(ENOMEM);
}
/* Conservative upper bound taken from zlib v1.2.1 source via lcl.c */
c->comp_size = c->comp_size + ((c->comp_size + 7) >> 3) +
/* Allocate compression buffer */
if ((c->comp_buf = av_malloc(c->comp_size)) == NULL) {
av_log(avctx, AV_LOG_ERROR, "Can't allocate compression buffer.\n");
- return -1;
+ return AVERROR(ENOMEM);
}
c->pstride = FFALIGN(avctx->width, 16);
if ((c->prev = av_malloc(c->pstride * avctx->height)) == NULL) {
av_log(avctx, AV_LOG_ERROR, "Can't allocate picture.\n");
- return -1;
+ return AVERROR(ENOMEM);
}
c->zstream.zalloc = Z_NULL;
return -1;
}
- avctx->coded_frame = (AVFrame*)&c->pic;
+ avctx->coded_frame = &c->pic;
return 0;
}
.id = CODEC_ID_ZMBV,
.priv_data_size = sizeof(ZmbvEncContext),
.init = encode_init,
- .encode = encode_frame,
+ .encode2 = encode_frame,
.close = encode_end,
- .pix_fmts = (const enum PixelFormat[]){PIX_FMT_PAL8, PIX_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("Zip Motion Blocks Video"),
+ .pix_fmts = (const enum PixelFormat[]){ PIX_FMT_PAL8, PIX_FMT_NONE },
+ .long_name = NULL_IF_CONFIG_SMALL("Zip Motion Blocks Video"),
};