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Code Issues Releases Activity

bmpenc: switch to encode2().

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This commit is contained in:
Anton Khirnov 2012-02-11 19:44:05 +01:00
parent b498867d66
commit 3f77c41171
1 changed files with 16 additions and 11 deletions
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27
libavcodec/bmpenc.c
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@ -24,6 +24,7 @@
#include "avcodec.h"
#include "bytestream.h"
#include "bmp.h"
#include "internal.h"
static const uint32_t monoblack_pal[] = { 0x000000, 0xFFFFFF };
static const uint32_t rgb565_masks[] = { 0xF800, 0x07E0, 0x001F };
@ -63,16 +64,16 @@ static av_cold int bmp_encode_init(AVCodecContext *avctx){
return 0;
}
static int bmp_encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
static int bmp_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *pict, int *got_packet)
{
BMPContext *s = avctx->priv_data;
AVFrame *pict = data;
AVFrame * const p= (AVFrame*)&s->picture;
int n_bytes_image, n_bytes_per_row, n_bytes, i, n, hsize;
int n_bytes_image, n_bytes_per_row, n_bytes, i, n, hsize, ret;
const uint32_t *pal = NULL;
int pad_bytes_per_row, pal_entries = 0, compression = BMP_RGB;
int bit_count = avctx->bits_per_coded_sample;
uint8_t *ptr;
unsigned char* buf0 = buf;
uint8_t *ptr, *buf;
*p = *pict;
p->pict_type= AV_PICTURE_TYPE_I;
p->key_frame= 1;
@ -111,10 +112,11 @@ static int bmp_encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_s
#define SIZE_BITMAPINFOHEADER 40
hsize = SIZE_BITMAPFILEHEADER + SIZE_BITMAPINFOHEADER + (pal_entries << 2);
n_bytes = n_bytes_image + hsize;
if(n_bytes>buf_size) {
av_log(avctx, AV_LOG_ERROR, "buf size too small (need %d, got %d)\n", n_bytes, buf_size);
return -1;
if ((ret = ff_alloc_packet(pkt, n_bytes)) < 0) {
av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
return ret;
}
buf = pkt->data;
bytestream_put_byte(&buf, 'B'); // BITMAPFILEHEADER.bfType
bytestream_put_byte(&buf, 'M'); // do.
bytestream_put_le32(&buf, n_bytes); // BITMAPFILEHEADER.bfSize
@ -136,7 +138,7 @@ static int bmp_encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_s
bytestream_put_le32(&buf, pal[i] & 0xFFFFFF);
// BMP files are bottom-to-top so we start from the end...
ptr = p->data[0] + (avctx->height - 1) * p->linesize[0];
buf = buf0 + hsize;
buf = pkt->data + hsize;
for(i = 0; i < avctx->height; i++) {
if (bit_count == 16) {
const uint16_t *src = (const uint16_t *) ptr;
@ -151,7 +153,10 @@ static int bmp_encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_s
buf += pad_bytes_per_row;
ptr -= p->linesize[0]; // ... and go back
}
return n_bytes;
pkt->flags |= AV_PKT_FLAG_KEY;
*got_packet = 1;
return 0;
}
AVCodec ff_bmp_encoder = {
@ -160,7 +165,7 @@ AVCodec ff_bmp_encoder = {
.id = CODEC_ID_BMP,
.priv_data_size = sizeof(BMPContext),
.init = bmp_encode_init,
.encode = bmp_encode_frame,
.encode2 = bmp_encode_frame,
.pix_fmts = (const enum PixelFormat[]){
PIX_FMT_BGR24,
PIX_FMT_RGB555, PIX_FMT_RGB444, PIX_FMT_RGB565,