*/
#include "avcodec.h"
-#include "dsputil.h"
#include "get_bits.h"
+#include "internal.h"
+#include "put_bits.h"
-/* Disable the encoder. */
-#undef CONFIG_CLJR_ENCODER
-#define CONFIG_CLJR_ENCODER 0
-
-typedef struct CLJRContext{
- AVCodecContext *avctx;
- AVFrame picture;
+typedef struct CLJRContext {
+ AVFrame picture;
} CLJRContext;
+static av_cold int common_init(AVCodecContext *avctx)
+{
+ CLJRContext * const a = avctx->priv_data;
+
+ avctx->coded_frame = &a->picture;
+
+ return 0;
+}
+
+#if CONFIG_CLJR_DECODER
static int decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
+ int buf_size = avpkt->size;
CLJRContext * const a = avctx->priv_data;
GetBitContext gb;
AVFrame *picture = data;
- AVFrame * const p= (AVFrame*)&a->picture;
+ AVFrame * const p = &a->picture;
int x, y;
- if(p->data[0])
+ if (p->data[0])
avctx->release_buffer(avctx, p);
- if(buf_size/avctx->height < avctx->width) {
- av_log(avctx, AV_LOG_ERROR, "Resolution larger than buffer size. Invalid header?\n");
- return -1;
+ if (avctx->height <= 0 || avctx->width <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid width or height\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (buf_size < avctx->height * avctx->width) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Resolution larger than buffer size. Invalid header?\n");
+ return AVERROR_INVALIDDATA;
}
- p->reference= 0;
- if(avctx->get_buffer(avctx, p) < 0){
+ p->reference = 0;
+ if (avctx->get_buffer(avctx, p) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
- p->pict_type= AV_PICTURE_TYPE_I;
- p->key_frame= 1;
+ p->pict_type = AV_PICTURE_TYPE_I;
+ p->key_frame = 1;
init_get_bits(&gb, buf, buf_size * 8);
- for(y=0; y<avctx->height; y++){
- uint8_t *luma= &a->picture.data[0][ y*a->picture.linesize[0] ];
- uint8_t *cb= &a->picture.data[1][ y*a->picture.linesize[1] ];
- uint8_t *cr= &a->picture.data[2][ y*a->picture.linesize[2] ];
- for(x=0; x<avctx->width; x+=4){
+ for (y = 0; y < avctx->height; y++) {
+ uint8_t *luma = &a->picture.data[0][y * a->picture.linesize[0]];
+ uint8_t *cb = &a->picture.data[1][y * a->picture.linesize[1]];
+ uint8_t *cr = &a->picture.data[2][y * a->picture.linesize[2]];
+ for (x = 0; x < avctx->width; x += 4) {
luma[3] = get_bits(&gb, 5) << 3;
luma[2] = get_bits(&gb, 5) << 3;
luma[1] = get_bits(&gb, 5) << 3;
luma[0] = get_bits(&gb, 5) << 3;
- luma+= 4;
+ luma += 4;
*(cb++) = get_bits(&gb, 6) << 2;
*(cr++) = get_bits(&gb, 6) << 2;
}
}
- *picture= *(AVFrame*)&a->picture;
+ *picture = a->picture;
*data_size = sizeof(AVPicture);
- emms_c();
-
return buf_size;
}
-#if CONFIG_CLJR_ENCODER
-static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
- CLJRContext * const a = avctx->priv_data;
- AVFrame *pict = data;
- AVFrame * const p= (AVFrame*)&a->picture;
- int size;
-
- *p = *pict;
- p->pict_type= AV_PICTURE_TYPE_I;
- p->key_frame= 1;
-
- emms_c();
-
- avpriv_align_put_bits(&a->pb);
- while(get_bit_count(&a->pb)&31)
- put_bits(&a->pb, 8, 0);
-
- size= get_bit_count(&a->pb)/32;
-
- return size*4;
-}
-#endif
-
-static av_cold void common_init(AVCodecContext *avctx){
- CLJRContext * const a = avctx->priv_data;
-
- avctx->coded_frame= (AVFrame*)&a->picture;
- a->avctx= avctx;
-}
-
-static av_cold int decode_init(AVCodecContext *avctx){
-
- common_init(avctx);
-
- avctx->pix_fmt= PIX_FMT_YUV411P;
-
- return 0;
+static av_cold int decode_init(AVCodecContext *avctx)
+{
+ avctx->pix_fmt = AV_PIX_FMT_YUV411P;
+ return common_init(avctx);
}
-static av_cold int decode_end(AVCodecContext *avctx) {
+static av_cold int decode_end(AVCodecContext *avctx)
+{
CLJRContext *a = avctx->priv_data;
- if (a->picture.data[0]);
+ if (a->picture.data[0])
avctx->release_buffer(avctx, &a->picture);
-}
-
-#if CONFIG_CLJR_ENCODER
-static av_cold int encode_init(AVCodecContext *avctx){
-
- common_init(avctx);
-
return 0;
}
-#endif
AVCodec ff_cljr_decoder = {
.name = "cljr",
.type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_CLJR,
+ .id = AV_CODEC_ID_CLJR,
.priv_data_size = sizeof(CLJRContext),
.init = decode_init,
.close = decode_end,
.decode = decode_frame,
.capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
+ .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
};
+#endif
#if CONFIG_CLJR_ENCODER
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *p, int *got_packet)
+{
+ PutBitContext pb;
+ int x, y, ret;
+
+ if ((ret = ff_alloc_packet(pkt, 32*avctx->height*avctx->width/4)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+ return ret;
+ }
+
+ avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
+ avctx->coded_frame->key_frame = 1;
+
+ init_put_bits(&pb, pkt->data, pkt->size);
+
+ for (y = 0; y < avctx->height; y++) {
+ uint8_t *luma = &p->data[0][y * p->linesize[0]];
+ uint8_t *cb = &p->data[1][y * p->linesize[1]];
+ uint8_t *cr = &p->data[2][y * p->linesize[2]];
+ for (x = 0; x < avctx->width; x += 4) {
+ put_bits(&pb, 5, luma[3] >> 3);
+ put_bits(&pb, 5, luma[2] >> 3);
+ put_bits(&pb, 5, luma[1] >> 3);
+ put_bits(&pb, 5, luma[0] >> 3);
+ luma += 4;
+ put_bits(&pb, 6, *(cb++) >> 2);
+ put_bits(&pb, 6, *(cr++) >> 2);
+ }
+ }
+
+ flush_put_bits(&pb);
+
+ pkt->size = put_bits_count(&pb) / 8;
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ *got_packet = 1;
+ return 0;
+}
+
AVCodec ff_cljr_encoder = {
.name = "cljr",
.type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_CLJR,
+ .id = AV_CODEC_ID_CLJR,
.priv_data_size = sizeof(CLJRContext),
- .init = encode_init,
- .encode = encode_frame,
- .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
+ .init = common_init,
+ .encode2 = encode_frame,
+ .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV411P,
+ AV_PIX_FMT_NONE },
+ .long_name = NULL_IF_CONFIG_SMALL("Cirrus Logic AccuPak"),
};
#endif
projects / ffmpeg / blobdiff