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iff: use the AVFrame API properly.

This commit is contained in:
Anton Khirnov 2013-11-09 10:14:46 +01:00
parent c5dfb9033f
commit 4b8a194146
1 changed files with 26 additions and 22 deletions
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48
libavcodec/iff.c
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@ -32,7 +32,7 @@
#include "internal.h"
typedef struct {
AVFrame frame;
AVFrame *frame;
int planesize;
uint8_t * planebuf;
int init; // 1 if buffer and palette data already initialized, 0 otherwise
@ -144,6 +144,14 @@ static int cmap_read_palette(AVCodecContext *avctx, uint32_t *pal)
return 0;
}
static av_cold int decode_end(AVCodecContext *avctx)
{
IffContext *s = avctx->priv_data;
av_frame_free(&s->frame);
av_freep(&s->planebuf);
return 0;
}
static av_cold int decode_init(AVCodecContext *avctx)
{
IffContext *s = avctx->priv_data;
@ -166,7 +174,11 @@ static av_cold int decode_init(AVCodecContext *avctx)
if (!s->planebuf)
return AVERROR(ENOMEM);
avcodec_get_frame_defaults(&s->frame);
s->frame = av_frame_alloc();
if (!s->frame) {
decode_end(avctx);
return AVERROR(ENOMEM);
}
return 0;
}
@ -255,12 +267,12 @@ static int decode_frame_ilbm(AVCodecContext *avctx,
const uint8_t *buf_end = buf + buf_size;
int y, plane, res;
if ((res = ff_reget_buffer(avctx, &s->frame)) < 0)
if ((res = ff_reget_buffer(avctx, s->frame)) < 0)
return res;
if (!s->init && avctx->bits_per_coded_sample <= 8 &&
avctx->pix_fmt != AV_PIX_FMT_GRAY8) {
if ((res = cmap_read_palette(avctx, (uint32_t *)s->frame.data[1])) < 0)
if ((res = cmap_read_palette(avctx, (uint32_t *)s->frame->data[1])) < 0)
return res;
}
s->init = 1;
@ -268,7 +280,7 @@ static int decode_frame_ilbm(AVCodecContext *avctx,
if (avctx->codec_tag == MKTAG('I', 'L', 'B', 'M')) { // interleaved
if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
for (y = 0; y < avctx->height; y++) {
uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
memset(row, 0, avctx->width);
for (plane = 0; plane < avctx->bits_per_coded_sample && buf < buf_end;
plane++) {
@ -278,7 +290,7 @@ static int decode_frame_ilbm(AVCodecContext *avctx,
}
} else { // AV_PIX_FMT_BGR32
for (y = 0; y < avctx->height; y++) {
uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
memset(row, 0, avctx->width << 2);
for (plane = 0; plane < avctx->bits_per_coded_sample && buf < buf_end;
plane++) {
@ -290,13 +302,13 @@ static int decode_frame_ilbm(AVCodecContext *avctx,
}
} else if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) { // IFF-PBM
for (y = 0; y < avctx->height && buf < buf_end; y++) {
uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
memcpy(row, buf, FFMIN(avctx->width, buf_end - buf));
buf += avctx->width + (avctx->width % 2); // padding if odd
}
}
if ((res = av_frame_ref(data, &s->frame)) < 0)
if ((res = av_frame_ref(data, s->frame)) < 0)
return res;
*got_frame = 1;
@ -314,12 +326,12 @@ static int decode_frame_byterun1(AVCodecContext *avctx,
const uint8_t *buf_end = buf + buf_size;
int y, plane, res;
if ((res = ff_reget_buffer(avctx, &s->frame)) < 0)
if ((res = ff_reget_buffer(avctx, s->frame)) < 0)
return res;
if (!s->init && avctx->bits_per_coded_sample <= 8 &&
avctx->pix_fmt != AV_PIX_FMT_GRAY8) {
if ((res = cmap_read_palette(avctx, (uint32_t *)s->frame.data[1])) < 0)
if ((res = cmap_read_palette(avctx, (uint32_t *)s->frame->data[1])) < 0)
return res;
}
s->init = 1;
@ -327,7 +339,7 @@ static int decode_frame_byterun1(AVCodecContext *avctx,
if (avctx->codec_tag == MKTAG('I', 'L', 'B', 'M')) { // interleaved
if (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_GRAY8) {
for (y = 0; y < avctx->height; y++) {
uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
memset(row, 0, avctx->width);
for (plane = 0; plane < avctx->bits_per_coded_sample; plane++) {
buf += decode_byterun(s->planebuf, s->planesize, buf, buf_end);
@ -336,7 +348,7 @@ static int decode_frame_byterun1(AVCodecContext *avctx,
}
} else { // AV_PIX_FMT_BGR32
for (y = 0; y < avctx->height; y++) {
uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
memset(row, 0, avctx->width << 2);
for (plane = 0; plane < avctx->bits_per_coded_sample; plane++) {
buf += decode_byterun(s->planebuf, s->planesize, buf, buf_end);
@ -346,12 +358,12 @@ static int decode_frame_byterun1(AVCodecContext *avctx,
}
} else {
for (y = 0; y < avctx->height; y++) {
uint8_t *row = &s->frame.data[0][y * s->frame.linesize[0]];
uint8_t *row = &s->frame->data[0][y * s->frame->linesize[0]];
buf += decode_byterun(row, avctx->width, buf, buf_end);
}
}
if ((res = av_frame_ref(data, &s->frame)) < 0)
if ((res = av_frame_ref(data, s->frame)) < 0)
return res;
*got_frame = 1;
@ -359,14 +371,6 @@ static int decode_frame_byterun1(AVCodecContext *avctx,
return buf_size;
}
static av_cold int decode_end(AVCodecContext *avctx)
{
IffContext *s = avctx->priv_data;
av_frame_unref(&s->frame);
av_freep(&s->planebuf);
return 0;
}
AVCodec ff_iff_ilbm_decoder = {
.name = "iff_ilbm",
.long_name = NULL_IF_CONFIG_SMALL("IFF ILBM"),