#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "bytestream.h"
+#include "internal.h"
/** Maximum RLE code for bulk copy */
#define MAX_RLE_BULK 127
typedef struct QtrleEncContext {
AVCodecContext *avctx;
- AVFrame frame;
int pixel_size;
AVPicture previous_frame;
unsigned int max_buf_size;
* Will contain at ith position the number of consecutive pixels equal to the previous
* frame starting from pixel i */
uint8_t* skip_table;
+
+ /** Encoded frame is a key frame */
+ int key_frame;
} QtrleEncContext;
+static av_cold int qtrle_encode_end(AVCodecContext *avctx)
+{
+ QtrleEncContext *s = avctx->priv_data;
+
+ avpicture_free(&s->previous_frame);
+ av_free(s->rlecode_table);
+ av_free(s->length_table);
+ av_free(s->skip_table);
+ return 0;
+}
+
static av_cold int qtrle_encode_init(AVCodecContext *avctx)
{
QtrleEncContext *s = avctx->priv_data;
s->avctx=avctx;
switch (avctx->pix_fmt) {
- case PIX_FMT_RGB555BE:
+ case AV_PIX_FMT_RGB555BE:
s->pixel_size = 2;
break;
- case PIX_FMT_RGB24:
+ case AV_PIX_FMT_RGB24:
s->pixel_size = 3;
break;
- case PIX_FMT_ARGB:
+ case AV_PIX_FMT_ARGB:
s->pixel_size = 4;
break;
default:
return -1;
}
- s->max_buf_size = s->avctx->width*s->avctx->height*s->pixel_size /* image base material */
+ s->max_buf_size = s->avctx->width*s->avctx->height*s->pixel_size*2 /* image base material */
+ 15 /* header + footer */
+ s->avctx->height*2 /* skip code+rle end */
+ s->avctx->width/MAX_RLE_BULK + 1 /* rle codes */;
- avctx->coded_frame = &s->frame;
+
return 0;
}
/**
* Compute the best RLE sequence for a line
*/
-static void qtrle_encode_line(QtrleEncContext *s, AVFrame *p, int line, uint8_t **buf)
+static void qtrle_encode_line(QtrleEncContext *s, const AVFrame *p, int line, uint8_t **buf)
{
int width=s->avctx->width;
int i;
unsigned int skipcount;
/* This will be the number of consecutive equal pixels in the current
* frame, starting from the ith one also */
- unsigned int av_uninit(repeatcount);
+ unsigned int repeatcount;
/* The cost of the three different possibilities */
int total_bulk_cost;
for (i = width - 1; i >= 0; i--) {
- if (!s->frame.key_frame && !memcmp(this_line, prev_line, s->pixel_size))
+ if (!s->key_frame && !memcmp(this_line, prev_line, s->pixel_size))
skipcount = FFMIN(skipcount + 1, MAX_RLE_SKIP);
else
skipcount = 0;
}
/** Encode frame including header */
-static int encode_frame(QtrleEncContext *s, AVFrame *p, uint8_t *buf)
+static int encode_frame(QtrleEncContext *s, const AVFrame *p, uint8_t *buf)
{
int i;
int start_line = 0;
int end_line = s->avctx->height;
uint8_t *orig_buf = buf;
- if (!s->frame.key_frame) {
+ if (!s->key_frame) {
unsigned line_size = s->avctx->width * s->pixel_size;
for (start_line = 0; start_line < s->avctx->height; start_line++)
if (memcmp(p->data[0] + start_line*p->linesize[0],
return buf - orig_buf;
}
-static int qtrle_encode_frame(AVCodecContext *avctx, uint8_t *buf, int buf_size, void *data)
+static int qtrle_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *pict, int *got_packet)
{
QtrleEncContext * const s = avctx->priv_data;
- AVFrame *pict = data;
- AVFrame * const p = &s->frame;
- int chunksize;
-
- *p = *pict;
+ enum AVPictureType pict_type;
+ int ret;
- if (buf_size < s->max_buf_size) {
+ if ((ret = ff_alloc_packet(pkt, s->max_buf_size)) < 0) {
/* Upper bound check for compressed data */
- av_log(avctx, AV_LOG_ERROR, "buf_size %d < %d\n", buf_size, s->max_buf_size);
- return -1;
+ av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", s->max_buf_size);
+ return ret;
}
if (avctx->gop_size == 0 || (s->avctx->frame_number % avctx->gop_size) == 0) {
/* I-Frame */
- p->pict_type = FF_I_TYPE;
- p->key_frame = 1;
+ pict_type = AV_PICTURE_TYPE_I;
+ s->key_frame = 1;
} else {
/* P-Frame */
- p->pict_type = FF_P_TYPE;
- p->key_frame = 0;
+ pict_type = AV_PICTURE_TYPE_P;
+ s->key_frame = 0;
}
- chunksize = encode_frame(s, pict, buf);
+ pkt->size = encode_frame(s, pict, pkt->data);
/* save the current frame */
- av_picture_copy(&s->previous_frame, (AVPicture *)p, avctx->pix_fmt, avctx->width, avctx->height);
- return chunksize;
-}
+ av_picture_copy(&s->previous_frame, (const AVPicture *)pict,
+ avctx->pix_fmt, avctx->width, avctx->height);
-static av_cold int qtrle_encode_end(AVCodecContext *avctx)
-{
- QtrleEncContext *s = avctx->priv_data;
+#if FF_API_CODED_FRAME
+FF_DISABLE_DEPRECATION_WARNINGS
+ avctx->coded_frame->key_frame = s->key_frame;
+ avctx->coded_frame->pict_type = pict_type;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ if (s->key_frame)
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ *got_packet = 1;
- avpicture_free(&s->previous_frame);
- av_free(s->rlecode_table);
- av_free(s->length_table);
- av_free(s->skip_table);
return 0;
}
AVCodec ff_qtrle_encoder = {
- "qtrle",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_QTRLE,
- sizeof(QtrleEncContext),
- qtrle_encode_init,
- qtrle_encode_frame,
- qtrle_encode_end,
- .pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB555BE, PIX_FMT_ARGB, PIX_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("QuickTime Animation (RLE) video"),
+ .name = "qtrle",
+ .long_name = NULL_IF_CONFIG_SMALL("QuickTime Animation (RLE) video"),
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_QTRLE,
+ .priv_data_size = sizeof(QtrleEncContext),
+ .init = qtrle_encode_init,
+ .encode2 = qtrle_encode_frame,
+ .close = qtrle_encode_end,
+ .pix_fmts = (const enum AVPixelFormat[]){
+ AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB555BE, AV_PIX_FMT_ARGB, AV_PIX_FMT_NONE
+ },
};
projects / ffmpeg / blobdiff