* 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 roqvideoenc.c
+ * @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 <string.h>
-#include <unistd.h>
#include "roqvideo.h"
#include "bytestream.h"
#include "elbg.h"
+#include "mathops.h"
#define CHROMA_BIAS 1
}
/**
- * Returns distortion between two macroblocks
+ * @return distortion between two macroblocks
*/
static inline int squared_diff_macroblock(uint8_t a[], uint8_t b[], int size)
{
/**
* Temporary vars
*/
-typedef struct
+typedef struct RoqTempData
{
CelEvaluation *cel_evals;
} 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)
{
}
/**
- * 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)
}
/**
- * 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)
{
{
int i, j, k;
int c_size = size*size/4;
- int *buf = points;
+ int *buf;
int *codebook = av_malloc(6*c_size*cbsize*sizeof(int));
int *closest_cb;
static void roq_encode_video(RoqContext *enc)
{
- RoqTempdata tempData;
+ RoqTempdata *tempData = enc->tmpData;
int i;
- memset(&tempData, 0, sizeof(tempData));
+ memset(tempData, 0, sizeof(*tempData));
- create_cel_evals(enc, &tempData);
+ create_cel_evals(enc, tempData);
- generate_new_codebooks(enc, &tempData);
+ generate_new_codebooks(enc, tempData);
if (enc->framesSinceKeyframe >= 1) {
motion_search(enc, 8);
retry_encode:
for (i=0; i<enc->width*enc->height/64; i++)
- gather_data_for_cel(tempData.cel_evals + i, enc, &tempData);
+ gather_data_for_cel(tempData->cel_evals + i, enc, tempData);
+
+ /* 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));
- /* Quake 3 can't handle chunks bigger than 65536 bytes */
- if (tempData.mainChunkSize/8 > 65536) {
- enc->lambda *= .8;
goto retry_encode;
}
- remap_codebooks(enc, &tempData);
+ remap_codebooks(enc, tempData);
- write_codebooks(enc, &tempData);
+ write_codebooks(enc, tempData);
- reconstruct_and_encode_image(enc, &tempData, enc->width, enc->height,
+ reconstruct_and_encode_image(enc, tempData, enc->width, enc->height,
enc->width*enc->height/64);
enc->avctx->coded_frame = enc->current_frame;
FFSWAP(motion_vect *, enc->last_motion4, enc->this_motion4);
FFSWAP(motion_vect *, enc->last_motion8, enc->this_motion8);
- av_free(tempData.cel_evals);
- av_free(tempData.closest_cb2);
+ av_free(tempData->cel_evals);
+ av_free(tempData->closest_cb2);
enc->framesSinceKeyframe++;
}
{
RoqContext *enc = avctx->priv_data;
- av_init_random(1, &enc->randctx);
+ av_lfg_init(&enc->randctx, 1);
enc->framesSinceKeyframe = 0;
if ((avctx->width & 0xf) || (avctx->height & 0xf)) {
if (((avctx->width)&(avctx->width-1))||((avctx->height)&(avctx->height-1)))
av_log(avctx, AV_LOG_ERROR, "Warning: dimensions not power of two\n");
- if (avcodec_check_dimensions(avctx, avctx->width, avctx->height)) {
- av_log(avctx, AV_LOG_ERROR, "Invalid dimensions (%dx%d)\n",
- avctx->width, avctx->height);
- return -1;
- }
-
enc->width = avctx->width;
enc->height = avctx->height;
enc->last_frame = &enc->frames[0];
enc->current_frame = &enc->frames[1];
+ enc->tmpData = av_malloc(sizeof(RoqTempdata));
+
enc->this_motion4 =
av_mallocz((enc->width*enc->height/16)*sizeof(motion_vect));
avctx->release_buffer(avctx, enc->last_frame);
avctx->release_buffer(avctx, enc->current_frame);
+ av_free(enc->tmpData);
av_free(enc->this_motion4);
av_free(enc->last_motion4);
av_free(enc->this_motion8);
return 0;
}
-AVCodec roq_encoder =
-{
- "roqvideo",
- CODEC_TYPE_VIDEO,
- CODEC_ID_ROQ,
- sizeof(RoqContext),
- roq_encode_init,
- roq_encode_frame,
- roq_encode_end,
- .supported_framerates = (AVRational[]){{30,1}, {0,0}},
- .pix_fmts = (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 = CODEC_ID_ROQ,
+ .priv_data_size = sizeof(RoqContext),
+ .init = roq_encode_init,
+ .encode = roq_encode_frame,
+ .close = 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"),
};
projects / ffmpeg / blobdiff