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authorTim Redfern <tim@eclectronics.org>2013-12-29 12:19:38 +0000
committerTim Redfern <tim@eclectronics.org>2013-12-29 12:19:38 +0000
commitf7813a5324be39d13ab536c245d15dfc602a7849 (patch)
treefad99148b88823d34a5df2f0a25881a002eb291b /ffmpeg/libavcodec/qtrle.c
parentb7a5a477b8ff4d4e3028b9dfb9a9df0a41463f92 (diff)
basic type mechanism working
Diffstat (limited to 'ffmpeg/libavcodec/qtrle.c')
-rw-r--r--ffmpeg/libavcodec/qtrle.c97
1 files changed, 49 insertions, 48 deletions
diff --git a/ffmpeg/libavcodec/qtrle.c b/ffmpeg/libavcodec/qtrle.c
index c043249..4eeeea4 100644
--- a/ffmpeg/libavcodec/qtrle.c
+++ b/ffmpeg/libavcodec/qtrle.c
@@ -41,7 +41,7 @@
typedef struct QtrleContext {
AVCodecContext *avctx;
- AVFrame frame;
+ AVFrame *frame;
GetByteContext g;
uint32_t pal[256];
@@ -58,17 +58,17 @@ static void qtrle_decode_1bpp(QtrleContext *s, int row_ptr, int lines_to_change)
{
int rle_code;
int pixel_ptr;
- int row_inc = s->frame.linesize[0];
- unsigned char pi0, pi1; /* 2 8-pixel values */
- unsigned char *rgb = s->frame.data[0];
- int pixel_limit = s->frame.linesize[0] * s->avctx->height;
+ int row_inc = s->frame->linesize[0];
+ uint8_t pi0, pi1; /* 2 8-pixel values */
+ uint8_t *rgb = s->frame->data[0];
+ int pixel_limit = s->frame->linesize[0] * s->avctx->height;
int skip;
/* skip & 0x80 appears to mean 'start a new line', which can be interpreted
* as 'go to next line' during the decoding of a frame but is 'go to first
* line' at the beginning. Since we always interpret it as 'go to next line'
* in the decoding loop (which makes code simpler/faster), the first line
* would not be counted, so we count one more.
- * See: https://ffmpeg.org/trac/ffmpeg/ticket/226
+ * See: https://trac.ffmpeg.org/ticket/226
* In the following decoding loop, row_ptr will be the position of the
* current row. */
@@ -77,7 +77,7 @@ static void qtrle_decode_1bpp(QtrleContext *s, int row_ptr, int lines_to_change)
lines_to_change++;
while (lines_to_change) {
skip = bytestream2_get_byte(&s->g);
- rle_code = (signed char)bytestream2_get_byte(&s->g);
+ rle_code = (int8_t)bytestream2_get_byte(&s->g);
if (rle_code == 0)
break;
if(skip & 0x80) {
@@ -110,8 +110,8 @@ static void qtrle_decode_1bpp(QtrleContext *s, int row_ptr, int lines_to_change)
rle_code *= 2;
CHECK_PIXEL_PTR(rle_code);
- while (rle_code--)
- rgb[pixel_ptr++] = bytestream2_get_byte(&s->g);
+ bytestream2_get_buffer(&s->g, &rgb[pixel_ptr], rle_code);
+ pixel_ptr += rle_code;
}
}
}
@@ -121,17 +121,17 @@ static inline void qtrle_decode_2n4bpp(QtrleContext *s, int row_ptr,
{
int rle_code, i;
int pixel_ptr;
- int row_inc = s->frame.linesize[0];
- unsigned char pi[16]; /* 16 palette indices */
- unsigned char *rgb = s->frame.data[0];
- int pixel_limit = s->frame.linesize[0] * s->avctx->height;
+ int row_inc = s->frame->linesize[0];
+ uint8_t pi[16]; /* 16 palette indices */
+ uint8_t *rgb = s->frame->data[0];
+ int pixel_limit = s->frame->linesize[0] * s->avctx->height;
int num_pixels = (bpp == 4) ? 8 : 16;
while (lines_to_change--) {
pixel_ptr = row_ptr + (num_pixels * (bytestream2_get_byte(&s->g) - 1));
CHECK_PIXEL_PTR(0);
- while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
+ while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
if (rle_code == 0) {
/* there's another skip code in the stream */
pixel_ptr += (num_pixels * (bytestream2_get_byte(&s->g) - 1));
@@ -147,8 +147,8 @@ static inline void qtrle_decode_2n4bpp(QtrleContext *s, int row_ptr,
}
CHECK_PIXEL_PTR(rle_code * num_pixels);
while (rle_code--) {
- for (i = 0; i < num_pixels; i++)
- rgb[pixel_ptr++] = pi[i];
+ memcpy(&rgb[pixel_ptr], &pi, num_pixels);
+ pixel_ptr += num_pixels;
}
} else {
/* copy the same pixel directly to output 4 times */
@@ -177,16 +177,16 @@ static void qtrle_decode_8bpp(QtrleContext *s, int row_ptr, int lines_to_change)
{
int rle_code;
int pixel_ptr;
- int row_inc = s->frame.linesize[0];
- unsigned char pi1, pi2, pi3, pi4; /* 4 palette indexes */
- unsigned char *rgb = s->frame.data[0];
- int pixel_limit = s->frame.linesize[0] * s->avctx->height;
+ int row_inc = s->frame->linesize[0];
+ uint8_t pi1, pi2, pi3, pi4; /* 4 palette indexes */
+ uint8_t *rgb = s->frame->data[0];
+ int pixel_limit = s->frame->linesize[0] * s->avctx->height;
while (lines_to_change--) {
pixel_ptr = row_ptr + (4 * (bytestream2_get_byte(&s->g) - 1));
CHECK_PIXEL_PTR(0);
- while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
+ while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
if (rle_code == 0) {
/* there's another skip code in the stream */
pixel_ptr += (4 * (bytestream2_get_byte(&s->g) - 1));
@@ -214,9 +214,8 @@ static void qtrle_decode_8bpp(QtrleContext *s, int row_ptr, int lines_to_change)
rle_code *= 4;
CHECK_PIXEL_PTR(rle_code);
- while (rle_code--) {
- rgb[pixel_ptr++] = bytestream2_get_byte(&s->g);
- }
+ bytestream2_get_buffer(&s->g, &rgb[pixel_ptr], rle_code);
+ pixel_ptr += rle_code;
}
}
row_ptr += row_inc;
@@ -227,16 +226,16 @@ static void qtrle_decode_16bpp(QtrleContext *s, int row_ptr, int lines_to_change
{
int rle_code;
int pixel_ptr;
- int row_inc = s->frame.linesize[0];
- unsigned short rgb16;
- unsigned char *rgb = s->frame.data[0];
- int pixel_limit = s->frame.linesize[0] * s->avctx->height;
+ int row_inc = s->frame->linesize[0];
+ uint16_t rgb16;
+ uint8_t *rgb = s->frame->data[0];
+ int pixel_limit = s->frame->linesize[0] * s->avctx->height;
while (lines_to_change--) {
pixel_ptr = row_ptr + (bytestream2_get_byte(&s->g) - 1) * 2;
CHECK_PIXEL_PTR(0);
- while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
+ while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
if (rle_code == 0) {
/* there's another skip code in the stream */
pixel_ptr += (bytestream2_get_byte(&s->g) - 1) * 2;
@@ -249,7 +248,7 @@ static void qtrle_decode_16bpp(QtrleContext *s, int row_ptr, int lines_to_change
CHECK_PIXEL_PTR(rle_code * 2);
while (rle_code--) {
- *(unsigned short *)(&rgb[pixel_ptr]) = rgb16;
+ *(uint16_t *)(&rgb[pixel_ptr]) = rgb16;
pixel_ptr += 2;
}
} else {
@@ -258,7 +257,7 @@ static void qtrle_decode_16bpp(QtrleContext *s, int row_ptr, int lines_to_change
/* copy pixels directly to output */
while (rle_code--) {
rgb16 = bytestream2_get_be16(&s->g);
- *(unsigned short *)(&rgb[pixel_ptr]) = rgb16;
+ *(uint16_t *)(&rgb[pixel_ptr]) = rgb16;
pixel_ptr += 2;
}
}
@@ -271,16 +270,16 @@ static void qtrle_decode_24bpp(QtrleContext *s, int row_ptr, int lines_to_change
{
int rle_code;
int pixel_ptr;
- int row_inc = s->frame.linesize[0];
- unsigned char r, g, b;
- unsigned char *rgb = s->frame.data[0];
- int pixel_limit = s->frame.linesize[0] * s->avctx->height;
+ int row_inc = s->frame->linesize[0];
+ uint8_t r, g, b;
+ uint8_t *rgb = s->frame->data[0];
+ int pixel_limit = s->frame->linesize[0] * s->avctx->height;
while (lines_to_change--) {
pixel_ptr = row_ptr + (bytestream2_get_byte(&s->g) - 1) * 3;
CHECK_PIXEL_PTR(0);
- while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
+ while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
if (rle_code == 0) {
/* there's another skip code in the stream */
pixel_ptr += (bytestream2_get_byte(&s->g) - 1) * 3;
@@ -318,16 +317,16 @@ static void qtrle_decode_32bpp(QtrleContext *s, int row_ptr, int lines_to_change
{
int rle_code;
int pixel_ptr;
- int row_inc = s->frame.linesize[0];
+ int row_inc = s->frame->linesize[0];
unsigned int argb;
- unsigned char *rgb = s->frame.data[0];
- int pixel_limit = s->frame.linesize[0] * s->avctx->height;
+ uint8_t *rgb = s->frame->data[0];
+ int pixel_limit = s->frame->linesize[0] * s->avctx->height;
while (lines_to_change--) {
pixel_ptr = row_ptr + (bytestream2_get_byte(&s->g) - 1) * 4;
CHECK_PIXEL_PTR(0);
- while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
+ while ((rle_code = (int8_t)bytestream2_get_byte(&s->g)) != -1) {
if (rle_code == 0) {
/* there's another skip code in the stream */
pixel_ptr += (bytestream2_get_byte(&s->g) - 1) * 4;
@@ -396,7 +395,9 @@ static av_cold int qtrle_decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
}
- avcodec_get_frame_defaults(&s->frame);
+ s->frame = av_frame_alloc();
+ if (!s->frame)
+ return AVERROR(ENOMEM);
return 0;
}
@@ -412,7 +413,7 @@ static int qtrle_decode_frame(AVCodecContext *avctx,
int ret;
bytestream2_init(&s->g, avpkt->data, avpkt->size);
- if ((ret = ff_reget_buffer(avctx, &s->frame)) < 0)
+ if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
return ret;
/* check if this frame is even supposed to change */
@@ -439,7 +440,7 @@ static int qtrle_decode_frame(AVCodecContext *avctx,
start_line = 0;
height = s->avctx->height;
}
- row_ptr = s->frame.linesize[0] * start_line;
+ row_ptr = s->frame->linesize[0] * start_line;
switch (avctx->bits_per_coded_sample) {
case 1:
@@ -487,16 +488,16 @@ static int qtrle_decode_frame(AVCodecContext *avctx,
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (pal) {
- s->frame.palette_has_changed = 1;
+ s->frame->palette_has_changed = 1;
memcpy(s->pal, pal, AVPALETTE_SIZE);
}
/* make the palette available on the way out */
- memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
+ memcpy(s->frame->data[1], s->pal, AVPALETTE_SIZE);
}
done:
- if ((ret = av_frame_ref(data, &s->frame)) < 0)
+ if ((ret = av_frame_ref(data, s->frame)) < 0)
return ret;
*got_frame = 1;
@@ -508,13 +509,14 @@ static av_cold int qtrle_decode_end(AVCodecContext *avctx)
{
QtrleContext *s = avctx->priv_data;
- av_frame_unref(&s->frame);
+ av_frame_free(&s->frame);
return 0;
}
AVCodec ff_qtrle_decoder = {
.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(QtrleContext),
@@ -522,5 +524,4 @@ AVCodec ff_qtrle_decoder = {
.close = qtrle_decode_end,
.decode = qtrle_decode_frame,
.capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("QuickTime Animation (RLE) video"),
};