* Copyright (C) 2004-2007 Eric Lasota
* Based on RoQ specs (C) 2001 Tim Ferguson
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* id RoQ encoder by Vitor. Based on the Switchblade3 library and the
- * Switchblade3 FFmpeg glue by Eric Lasota.
+ * Switchblade3 Libav glue by Eric Lasota.
*/
/*
#include "roqvideo.h"
#include "bytestream.h"
#include "elbg.h"
+#include "internal.h"
#include "mathops.h"
#define CHROMA_BIAS 1
return x*x;
}
-static inline int eval_sse(uint8_t *a, uint8_t *b, int count)
+static inline int eval_sse(const uint8_t *a, const uint8_t *b, int count)
{
int diff=0;
// FIXME Could use DSPContext.sse, but it is not so speed critical (used
// just for motion estimation).
-static int block_sse(uint8_t **buf1, uint8_t **buf2, int x1, int y1, int x2,
- int y2, int *stride1, int *stride2, int size)
+static int block_sse(uint8_t * const *buf1, uint8_t * const *buf2, int x1, int y1,
+ int x2, int y2, const int *stride1, const int *stride2, int size)
{
int i, k;
int sse=0;
}
/**
- * Returns distortion between two macroblocks
+ * @return distortion between two macroblocks
*/
static inline int squared_diff_macroblock(uint8_t a[], uint8_t b[], int size)
{
} RoqTempdata;
/**
- * Initializes cel evaluators and sets their source coordinates
+ * Initialize cel evaluators and set their source coordinates
*/
static void create_cel_evals(RoqContext *enc, RoqTempdata *tempData)
{
/**
* Get macroblocks from parts of the image
*/
-static void get_frame_mb(AVFrame *frame, int x, int y, uint8_t mb[], int dim)
+static void get_frame_mb(const AVFrame *frame, int x, int y, uint8_t mb[], int dim)
{
int i, j, cp;
}
/**
- * Gets distortion for all options available to a subcel
+ * Get distortion for all options available to a subcel
*/
static void gather_data_for_subcel(SubcelEvaluation *subcel, int x,
int y, RoqContext *enc, RoqTempdata *tempData)
}
/**
- * Gets distortion for all options available to a cel
+ * Get distortion for all options available to a cel
*/
static void gather_data_for_cel(CelEvaluation *cel, RoqContext *enc,
RoqTempdata *tempData)
/**
* Create a single YUV cell from a 2x2 section of the image
*/
-static inline void frame_block_to_cell(uint8_t *block, uint8_t **data,
- int top, int left, int *stride)
+static inline void frame_block_to_cell(uint8_t *block, uint8_t * const *data,
+ int top, int left, const int *stride)
{
int i, j, u=0, v=0;
}
/**
- * Creates YUV clusters for the entire image
+ * Create YUV clusters for the entire image
*/
-static void create_clusters(AVFrame *frame, int w, int h, uint8_t *yuvClusters)
+static void create_clusters(const AVFrame *frame, int w, int h, uint8_t *yuvClusters)
{
int i, j, k, l;
for (i=0; i<enc->width*enc->height/64; i++)
gather_data_for_cel(tempData->cel_evals + i, enc, tempData);
- /* Quake 3 can't handle chunks bigger than 65536 bytes */
- if (tempData->mainChunkSize/8 > 65536) {
- enc->lambda *= .8;
+ /* Quake 3 can't handle chunks bigger than 65535 bytes */
+ if (tempData->mainChunkSize/8 > 65535) {
+ av_log(enc->avctx, AV_LOG_ERROR,
+ "Warning, generated a frame too big (%d > 65535), "
+ "try using a smaller qscale value.\n",
+ tempData->mainChunkSize/8);
+ enc->lambda *= 1.5;
+ tempData->mainChunkSize = 0;
+ memset(tempData->used_option, 0, sizeof(tempData->used_option));
+ memset(tempData->codebooks.usedCB4, 0,
+ sizeof(tempData->codebooks.usedCB4));
+ memset(tempData->codebooks.usedCB2, 0,
+ sizeof(tempData->codebooks.usedCB2));
+
goto retry_encode;
}
bytestream_put_byte(&enc->out_buf, 0x00);
}
-static int roq_encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data)
+static int roq_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+ const AVFrame *frame, int *got_packet)
{
RoqContext *enc = avctx->priv_data;
- AVFrame *frame= data;
- uint8_t *buf_start = buf;
+ int size, ret;
- enc->out_buf = buf;
enc->avctx = avctx;
enc->frame_to_enc = frame;
/* 138 bits max per 8x8 block +
* 256 codebooks*(6 bytes 2x2 + 4 bytes 4x4) + 8 bytes frame header */
- if (((enc->width*enc->height/64)*138+7)/8 + 256*(6+4) + 8 > buf_size) {
- av_log(avctx, AV_LOG_ERROR, " RoQ: Output buffer too small!\n");
- return -1;
+ size = ((enc->width * enc->height / 64) * 138 + 7) / 8 + 256 * (6 + 4) + 8;
+ if ((ret = ff_alloc_packet(pkt, size)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error getting output packet with size %d.\n", size);
+ return ret;
}
+ enc->out_buf = pkt->data;
/* Check for I frame */
if (enc->framesSinceKeyframe == avctx->gop_size)
/* Encode the actual frame */
roq_encode_video(enc);
- return enc->out_buf - buf_start;
+ pkt->size = enc->out_buf - pkt->data;
+ if (enc->framesSinceKeyframe == 1)
+ pkt->flags |= AV_PKT_FLAG_KEY;
+ *got_packet = 1;
+
+ return 0;
}
static int roq_encode_end(AVCodecContext *avctx)
return 0;
}
-AVCodec roq_encoder =
-{
- "roqvideo",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_ROQ,
- sizeof(RoqContext),
- roq_encode_init,
- roq_encode_frame,
- roq_encode_end,
- .supported_framerates = (const AVRational[]){{30,1}, {0,0}},
- .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV444P, PIX_FMT_NONE},
- .long_name = NULL_IF_CONFIG_SMALL("id RoQ video"),
+AVCodec ff_roq_encoder = {
+ .name = "roqvideo",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_ROQ,
+ .priv_data_size = sizeof(RoqContext),
+ .init = roq_encode_init,
+ .encode2 = roq_encode_frame,
+ .close = roq_encode_end,
+ .supported_framerates = (const AVRational[]){ {30,1}, {0,0} },
+ .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P,
+ AV_PIX_FMT_NONE },
+ .long_name = NULL_IF_CONFIG_SMALL("id RoQ video"),
};
projects / ffmpeg / blobdiff