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Code Issues Releases Activity

targaenc: switch to encode2().

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This commit is contained in:
Anton Khirnov 2012-02-12 09:32:40 +01:00
parent 1e742ea3c8
commit 61eaf45c99
1 changed files with 30 additions and 26 deletions
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56
libavcodec/targaenc.c
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@ -22,6 +22,7 @@
#include "libavutil/intreadwrite.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "internal.h"
#include "rle.h"
#include "targa.h"
@ -39,7 +40,7 @@ typedef struct TargaContext {
* @param h Image height
* @return Size of output in bytes, or -1 if larger than out_size
*/
static int targa_encode_rle(uint8_t *outbuf, int out_size, AVFrame *pic,
static int targa_encode_rle(uint8_t *outbuf, int out_size, const AVFrame *pic,
int bpp, int w, int h)
{
int y,ret;
@ -59,7 +60,7 @@ static int targa_encode_rle(uint8_t *outbuf, int out_size, AVFrame *pic,
return out - outbuf;
}
static int targa_encode_normal(uint8_t *outbuf, AVFrame *pic, int bpp, int w, int h)
static int targa_encode_normal(uint8_t *outbuf, const AVFrame *pic, int bpp, int w, int h)
{
int i, n = bpp * w;
uint8_t *out = outbuf;
@ -74,11 +75,10 @@ static int targa_encode_normal(uint8_t *outbuf, AVFrame *pic, int bpp, int w, in
return out - outbuf;
}
static int targa_encode_frame(AVCodecContext *avctx,
unsigned char *outbuf,
int buf_size, void *data){
AVFrame *p = data;
int bpp, picsize, datasize = -1;
static int targa_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *p, int *got_packet)
{
int bpp, picsize, datasize = -1, ret;
uint8_t *out;
if(avctx->width > 0xffff || avctx->height > 0xffff) {
@ -86,43 +86,43 @@ static int targa_encode_frame(AVCodecContext *avctx,
return AVERROR(EINVAL);
}
picsize = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
if(buf_size < picsize + 45) {
if ((ret = ff_alloc_packet(pkt, picsize + 45)) < 0) {
av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
return AVERROR(EINVAL);
return ret;
}
/* zero out the header and only set applicable fields */
memset(outbuf, 0, 12);
AV_WL16(outbuf+12, avctx->width);
AV_WL16(outbuf+14, avctx->height);
memset(pkt->data, 0, 12);
AV_WL16(pkt->data+12, avctx->width);
AV_WL16(pkt->data+14, avctx->height);
/* image descriptor byte: origin is always top-left, bits 0-3 specify alpha */
outbuf[17] = 0x20 | (avctx->pix_fmt == PIX_FMT_BGRA ? 8 : 0);
pkt->data[17] = 0x20 | (avctx->pix_fmt == PIX_FMT_BGRA ? 8 : 0);
switch(avctx->pix_fmt) {
case PIX_FMT_GRAY8:
outbuf[2] = TGA_BW; /* uncompressed grayscale image */
outbuf[16] = 8; /* bpp */
pkt->data[2] = TGA_BW; /* uncompressed grayscale image */
pkt->data[16] = 8; /* bpp */
break;
case PIX_FMT_RGB555LE:
outbuf[2] = TGA_RGB; /* uncompresses true-color image */
outbuf[16] = 16; /* bpp */
pkt->data[2] = TGA_RGB; /* uncompresses true-color image */
pkt->data[16] = 16; /* bpp */
break;
case PIX_FMT_BGR24:
outbuf[2] = TGA_RGB; /* uncompressed true-color image */
outbuf[16] = 24; /* bpp */
pkt->data[2] = TGA_RGB; /* uncompressed true-color image */
pkt->data[16] = 24; /* bpp */
break;
case PIX_FMT_BGRA:
outbuf[2] = TGA_RGB; /* uncompressed true-color image */
outbuf[16] = 32; /* bpp */
pkt->data[2] = TGA_RGB; /* uncompressed true-color image */
pkt->data[16] = 32; /* bpp */
break;
default:
av_log(avctx, AV_LOG_ERROR, "Pixel format '%s' not supported.\n",
av_get_pix_fmt_name(avctx->pix_fmt));
return AVERROR(EINVAL);
}
bpp = outbuf[16] >> 3;
bpp = pkt->data[16] >> 3;
out = outbuf + 18; /* skip past the header we just output */
out = pkt->data + 18; /* skip past the header we just output */
/* try RLE compression */
if (avctx->coder_type != FF_CODER_TYPE_RAW)
@ -130,7 +130,7 @@ static int targa_encode_frame(AVCodecContext *avctx,
/* if that worked well, mark the picture as RLE compressed */
if(datasize >= 0)
outbuf[2] |= 8;
pkt->data[2] |= 8;
/* if RLE didn't make it smaller, go back to no compression */
else datasize = targa_encode_normal(out, p, bpp, avctx->width, avctx->height);
@ -142,7 +142,11 @@ static int targa_encode_frame(AVCodecContext *avctx,
* aspect ratio and encoder ID fields available? */
memcpy(out, "\0\0\0\0\0\0\0\0TRUEVISION-XFILE.", 26);
return out + 26 - outbuf;
pkt->size = out + 26 - pkt->data;
pkt->flags |= AV_PKT_FLAG_KEY;
*got_packet = 1;
return 0;
}
static av_cold int targa_encode_init(AVCodecContext *avctx)
@ -163,7 +167,7 @@ AVCodec ff_targa_encoder = {
.id = CODEC_ID_TARGA,
.priv_data_size = sizeof(TargaContext),
.init = targa_encode_init,
.encode = targa_encode_frame,
.encode2 = targa_encode_frame,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_BGR24, PIX_FMT_BGRA, PIX_FMT_RGB555LE, PIX_FMT_GRAY8, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("Truevision Targa image"),
};