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use reget_buffer and remove internal copying of buffer - codec works again

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Originally committed as revision 10000 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Beregszaszi 2007-08-09 00:16:27 +00:00
parent 5fc32c275e
commit b4d00c20dc
1 changed files with 9 additions and 33 deletions
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42
libavcodec/truemotion1.c
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@ -42,7 +42,6 @@
typedef struct TrueMotion1Context {
AVCodecContext *avctx;
AVFrame frame;
AVFrame prev_frame;
uint8_t *buf;
int size;
@ -474,7 +473,7 @@ static int truemotion1_decode_init(AVCodecContext *avctx)
// else
// avctx->pix_fmt = PIX_FMT_RGB555;
s->frame.data[0] = s->prev_frame.data[0] = NULL;
s->frame.data[0] = NULL;
/* there is a vertical predictor for each pixel in a line; each vertical
* predictor is 0 to start with */
@ -590,8 +589,7 @@ hres,vres,i,i%vres (0 < i < 4)
#define OUTPUT_PIXEL_PAIR() \
*current_pixel_pair = *vert_pred + horiz_pred; \
*vert_pred++ = *current_pixel_pair++; \
prev_pixel_pair++;
*vert_pred++ = *current_pixel_pair++;
static void truemotion1_decode_16bit(TrueMotion1Context *s)
{
@ -601,9 +599,7 @@ static void truemotion1_decode_16bit(TrueMotion1Context *s)
unsigned int horiz_pred;
unsigned int *vert_pred;
unsigned int *current_pixel_pair;
unsigned int *prev_pixel_pair;
unsigned char *current_line = s->frame.data[0];
unsigned char *prev_line = s->prev_frame.data[0];
int keyframe = s->flags & FLAG_KEYFRAME;
/* these variables are for managing the stream of macroblock change bits */
@ -626,7 +622,6 @@ static void truemotion1_decode_16bit(TrueMotion1Context *s)
/* re-init variables for the next line iteration */
horiz_pred = 0;
current_pixel_pair = (unsigned int *)current_line;
prev_pixel_pair = (unsigned int *)prev_line;
vert_pred = s->vert_pred;
mb_change_index = 0;
mb_change_byte = mb_change_bits[mb_change_index++];
@ -695,9 +690,7 @@ static void truemotion1_decode_16bit(TrueMotion1Context *s)
/* skip (copy) four pixels, but reassign the horizontal
* predictor */
*current_pixel_pair = *prev_pixel_pair++;
*vert_pred++ = *current_pixel_pair++;
*current_pixel_pair = *prev_pixel_pair++;
horiz_pred = *current_pixel_pair - *vert_pred;
*vert_pred++ = *current_pixel_pair++;
@ -721,7 +714,6 @@ static void truemotion1_decode_16bit(TrueMotion1Context *s)
mb_change_bits += s->mb_change_bits_row_size;
current_line += s->frame.linesize[0];
prev_line += s->prev_frame.linesize[0];
}
}
@ -733,9 +725,7 @@ static void truemotion1_decode_24bit(TrueMotion1Context *s)
unsigned int horiz_pred;
unsigned int *vert_pred;
unsigned int *current_pixel_pair;
unsigned int *prev_pixel_pair;
unsigned char *current_line = s->frame.data[0];
unsigned char *prev_line = s->prev_frame.data[0];
int keyframe = s->flags & FLAG_KEYFRAME;
/* these variables are for managing the stream of macroblock change bits */
@ -758,7 +748,6 @@ static void truemotion1_decode_24bit(TrueMotion1Context *s)
/* re-init variables for the next line iteration */
horiz_pred = 0;
current_pixel_pair = (unsigned int *)current_line;
prev_pixel_pair = (unsigned int *)prev_line;
vert_pred = s->vert_pred;
mb_change_index = 0;
mb_change_byte = mb_change_bits[mb_change_index++];
@ -827,9 +816,7 @@ static void truemotion1_decode_24bit(TrueMotion1Context *s)
/* skip (copy) four pixels, but reassign the horizontal
* predictor */
*current_pixel_pair = *prev_pixel_pair++;
*vert_pred++ = *current_pixel_pair++;
*current_pixel_pair = *prev_pixel_pair++;
horiz_pred = *current_pixel_pair - *vert_pred;
*vert_pred++ = *current_pixel_pair++;
@ -853,7 +840,6 @@ static void truemotion1_decode_24bit(TrueMotion1Context *s)
mb_change_bits += s->mb_change_bits_row_size;
current_line += s->frame.linesize[0];
prev_line += s->prev_frame.linesize[0];
}
}
@ -871,28 +857,19 @@ static int truemotion1_decode_frame(AVCodecContext *avctx,
return -1;
s->frame.reference = 1;
if (avctx->get_buffer(avctx, &s->frame) < 0) {
s->frame.buffer_hints = FF_BUFFER_HINTS_VALID |
FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
if (avctx->reget_buffer(avctx, &s->frame) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
/* check for a do-nothing frame and copy the previous frame */
if (compression_types[s->compression].algorithm == ALGO_NOP)
{
memcpy(s->frame.data[0], s->prev_frame.data[0],
s->frame.linesize[0] * s->avctx->height);
} else if (compression_types[s->compression].algorithm == ALGO_RGB24H) {
if (compression_types[s->compression].algorithm == ALGO_RGB24H) {
truemotion1_decode_24bit(s);
} else {
} else if (compression_types[s->compression].algorithm != ALGO_NOP) {
truemotion1_decode_16bit(s);
}
if (s->prev_frame.data[0])
avctx->release_buffer(avctx, &s->prev_frame);
/* shuffle frames */
s->prev_frame = s->frame;
*data_size = sizeof(AVFrame);
*(AVFrame*)data = s->frame;
@ -904,9 +881,8 @@ static int truemotion1_decode_end(AVCodecContext *avctx)
{
TrueMotion1Context *s = avctx->priv_data;
/* release the last frame */
if (s->prev_frame.data[0])
avctx->release_buffer(avctx, &s->prev_frame);
if (s->frame.data[0])
avctx->release_buffer(avctx, &s->frame);
av_free(s->vert_pred);