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roqvideo: check memory allocations and propagate errors

This commit is contained in:
Vittorio Giovara 2014-12-16 10:33:37 +01:00
parent ae2d41ec87
commit 3beb9cbad3
1 changed files with 62 additions and 23 deletions
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85
libavcodec/roqvideoenc.c
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@ -244,11 +244,13 @@ typedef struct RoqTempData
/**
* Initialize cel evaluators and set their source coordinates
*/
static void create_cel_evals(RoqContext *enc, RoqTempdata *tempData)
static int create_cel_evals(RoqContext *enc, RoqTempdata *tempData)
{
int n=0, x, y, i;
tempData->cel_evals = av_malloc(enc->width*enc->height/64 * sizeof(CelEvaluation));
if (!tempData->cel_evals)
return AVERROR(ENOMEM);
/* Map to the ROQ quadtree order */
for (y=0; y<enc->height; y+=16)
@ -257,6 +259,8 @@ static void create_cel_evals(RoqContext *enc, RoqTempdata *tempData)
tempData->cel_evals[n ].sourceX = x + (i&1)*8;
tempData->cel_evals[n++].sourceY = y + (i&2)*4;
}
return 0;
}
/**
@ -791,26 +795,36 @@ static void create_clusters(const AVFrame *frame, int w, int h, uint8_t *yuvClus
}
}
static void generate_codebook(RoqContext *enc, RoqTempdata *tempdata,
int *points, int inputCount, roq_cell *results,
int size, int cbsize)
static int generate_codebook(RoqContext *enc, RoqTempdata *tempdata,
int *points, int inputCount, roq_cell *results,
int size, int cbsize)
{
int i, j, k;
int i, j, k, ret = 0;
int c_size = size*size/4;
int *buf;
int *codebook = av_malloc(6*c_size*cbsize*sizeof(int));
int *closest_cb;
if (size == 4)
if (!codebook)
return AVERROR(ENOMEM);
if (size == 4) {
closest_cb = av_malloc(6*c_size*inputCount*sizeof(int));
else
if (!closest_cb) {
ret = AVERROR(ENOMEM);
goto out;
}
} else
closest_cb = tempdata->closest_cb2;
ff_init_elbg(points, 6*c_size, inputCount, codebook, cbsize, 1, closest_cb, &enc->randctx);
ff_do_elbg(points, 6*c_size, inputCount, codebook, cbsize, 1, closest_cb, &enc->randctx);
if (size == 4)
av_free(closest_cb);
ret = ff_init_elbg(points, 6 * c_size, inputCount, codebook,
cbsize, 1, closest_cb, &enc->randctx);
if (ret < 0)
goto out;
ret = ff_do_elbg(points, 6 * c_size, inputCount, codebook,
cbsize, 1, closest_cb, &enc->randctx);
if (ret < 0)
goto out;
buf = codebook;
for (i=0; i<cbsize; i++)
@ -822,13 +836,16 @@ static void generate_codebook(RoqContext *enc, RoqTempdata *tempdata,
results->v = (*buf++ + CHROMA_BIAS/2)/CHROMA_BIAS;
results++;
}
out:
if (size == 4)
av_free(closest_cb);
av_free(codebook);
return ret;
}
static void generate_new_codebooks(RoqContext *enc, RoqTempdata *tempData)
static int generate_new_codebooks(RoqContext *enc, RoqTempdata *tempData)
{
int i,j;
int i, j, ret = 0;
RoqCodebooks *codebooks = &tempData->codebooks;
int max = enc->width*enc->height/16;
uint8_t mb2[3*4];
@ -837,6 +854,11 @@ static void generate_new_codebooks(RoqContext *enc, RoqTempdata *tempData)
int *points = av_malloc(max*6*4*sizeof(int));
int bias;
if (!results4 || !yuvClusters || !points) {
ret = AVERROR(ENOMEM);
goto out;
}
/* Subsample YUV data */
create_clusters(enc->frame_to_enc, enc->width, enc->height, yuvClusters);
@ -847,14 +869,22 @@ static void generate_new_codebooks(RoqContext *enc, RoqTempdata *tempData)
}
/* Create 4x4 codebooks */
generate_codebook(enc, tempData, points, max, results4, 4, MAX_CBS_4x4);
if ((ret = generate_codebook(enc, tempData, points, max,
results4, 4, MAX_CBS_4x4)) < 0)
goto out;
codebooks->numCB4 = MAX_CBS_4x4;
tempData->closest_cb2 = av_malloc(max*4*sizeof(int));
if (!tempData->closest_cb2) {
ret = AVERROR(ENOMEM);
goto out;
}
/* Create 2x2 codebooks */
generate_codebook(enc, tempData, points, max*4, enc->cb2x2, 2, MAX_CBS_2x2);
if ((ret = generate_codebook(enc, tempData, points, max * 4,
enc->cb2x2, 2, MAX_CBS_2x2)) < 0)
goto out;
codebooks->numCB2 = MAX_CBS_2x2;
@ -874,22 +904,27 @@ static void generate_new_codebooks(RoqContext *enc, RoqTempdata *tempData)
enlarge_roq_mb4(codebooks->unpacked_cb4 + i*4*4*3,
codebooks->unpacked_cb4_enlarged + i*8*8*3);
}
out:
av_free(yuvClusters);
av_free(points);
av_free(results4);
return ret;
}
static void roq_encode_video(RoqContext *enc)
static int roq_encode_video(RoqContext *enc)
{
RoqTempdata *tempData = enc->tmpData;
int i;
int i, ret;
memset(tempData, 0, sizeof(*tempData));
create_cel_evals(enc, tempData);
ret = create_cel_evals(enc, tempData);
if (ret < 0)
return ret;
generate_new_codebooks(enc, tempData);
ret = generate_new_codebooks(enc, tempData);
if (ret < 0)
return ret;
if (enc->framesSinceKeyframe >= 1) {
motion_search(enc, 8);
@ -935,6 +970,8 @@ static void roq_encode_video(RoqContext *enc)
av_free(tempData->closest_cb2);
enc->framesSinceKeyframe++;
return 0;
}
static av_cold int roq_encode_end(AVCodecContext *avctx)
@ -1067,7 +1104,9 @@ static int roq_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
}
/* Encode the actual frame */
roq_encode_video(enc);
ret = roq_encode_video(enc);
if (ret < 0)
return ret;
pkt->size = enc->out_buf - pkt->data;
if (enc->framesSinceKeyframe == 1)