} GIFContext;
/* GIF header */
-static int gif_image_write_header(uint8_t **bytestream,
- int width, int height,
- uint32_t *palette)
+static int gif_image_write_header(AVCodecContext *avctx,
+ uint8_t **bytestream, uint32_t *palette)
{
int i;
unsigned int v;
bytestream_put_buffer(bytestream, "GIF", 3);
bytestream_put_buffer(bytestream, "89a", 3);
- bytestream_put_le16(bytestream, width);
- bytestream_put_le16(bytestream, height);
+ bytestream_put_le16(bytestream, avctx->width);
+ bytestream_put_le16(bytestream, avctx->height);
bytestream_put_byte(bytestream, 0xf7); /* flags: global clut, 256 entries */
bytestream_put_byte(bytestream, 0x1f); /* background color index */
return 0;
}
-static int gif_image_write_image(uint8_t **bytestream,
- int width, int height,
+static int gif_image_write_image(AVCodecContext *avctx, uint8_t **bytestream,
const uint8_t *buf, int linesize)
{
PutBitContext p;
bytestream_put_byte(bytestream, 0x2c);
bytestream_put_le16(bytestream, 0);
bytestream_put_le16(bytestream, 0);
- bytestream_put_le16(bytestream, width);
- bytestream_put_le16(bytestream, height);
+ bytestream_put_le16(bytestream, avctx->width);
+ bytestream_put_le16(bytestream, avctx->height);
bytestream_put_byte(bytestream, 0x00); /* flags */
/* no local clut */
bytestream_put_byte(bytestream, 0x08);
- left= width * height;
+ left= avctx->width * avctx->height;
init_put_bits(&p, buffer, 130);
* but it's still the same bitstream between packets (no flush !)
*/
ptr = buf;
- w = width;
+ w = avctx->width;
while(left>0) {
put_bits(&p, 9, 0x0100); /* clear code */
for(i=(left<GIF_CHUNKS)?left:GIF_CHUNKS;i;i--) {
put_bits(&p, 9, *ptr++);
if (--w == 0) {
- w = width;
+ w = avctx->width;
buf += linesize;
ptr = buf;
}
*p = *pict;
p->pict_type = FF_I_TYPE;
p->key_frame = 1;
- gif_image_write_header(&outbuf_ptr, avctx->width, avctx->height, (uint32_t *)pict->data[1]);
- gif_image_write_image(&outbuf_ptr, avctx->width, avctx->height, pict->data[0], pict->linesize[0]);
+ gif_image_write_header(avctx, &outbuf_ptr, (uint32_t *)pict->data[1]);
+ gif_image_write_image(avctx, &outbuf_ptr, pict->data[0], pict->linesize[0]);
return outbuf_ptr - outbuf;
}