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theora: Convert theoradec to libtheora 1.0 API

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This commit is contained in:
David Schleef 2009-07-31 14:59:03 -07:00
parent 6776cb445e
commit f1e142ac9d
2 changed files with 80 additions and 82 deletions
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10
ext/theora/gsttheoradec.h
View file

@ -25,7 +25,7 @@
#endif
#include <gst/gst.h>
#include <theora/theora.h>
#include <theora/theoradec.h>
#include <string.h>
G_BEGIN_DECLS
@ -58,9 +58,11 @@ struct _GstTheoraDec
GstPad *srcpad;
/* theora decoder state */
theora_state state;
theora_info info;
theora_comment comment;
th_dec_ctx *decoder;
//theora_state state;
th_setup_info *setup;
th_info info;
th_comment comment;
gboolean have_header;
gboolean is_old_bitstream;

152
ext/theora/theoradec.c
View file

@ -202,18 +202,6 @@ gst_theora_dec_reset (GstTheoraDec * dec)
}
}
static int
_theora_ilog (unsigned int v)
{
int ret = 0;
while (v) {
ret++;
v >>= 1;
}
return (ret);
}
/* Return the frame number (starting from zero) corresponding to this
* granulepos */
static gint64
@ -347,7 +335,7 @@ theora_dec_src_convert (GstPad * pad,
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_value = gst_util_uint64_scale_int (src_value, 8,
dec->info.height * dec->info.width * dec->output_bpp);
dec->info.pic_height * dec->info.pic_width * dec->output_bpp);
break;
case GST_FORMAT_TIME:
/* seems like a rather silly conversion, implement me if you like */
@ -358,7 +346,9 @@ theora_dec_src_convert (GstPad * pad,
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_BYTES:
scale = dec->output_bpp * (dec->info.width * dec->info.height) / 8;
scale =
dec->output_bpp * (dec->info.pic_width * dec->info.pic_height) /
8;
case GST_FORMAT_DEFAULT:
*dest_value = scale * gst_util_uint64_scale (src_value,
dec->info.fps_numerator, dec->info.fps_denominator * GST_SECOND);
@ -375,7 +365,7 @@ theora_dec_src_convert (GstPad * pad,
break;
case GST_FORMAT_BYTES:
*dest_value = gst_util_uint64_scale_int (src_value,
dec->output_bpp * dec->info.width * dec->info.height, 8);
dec->output_bpp * dec->info.pic_width * dec->info.pic_height, 8);
break;
default:
res = FALSE;
@ -437,7 +427,7 @@ theora_dec_sink_convert (GstPad * pad,
dec->info.fps_numerator, GST_SECOND * dec->info.fps_denominator);
/* funny way of calculating granulepos in theora */
rest = *dest_value / dec->info.keyframe_frequency_force;
rest = *dest_value / dec->info.keyframe_granule_shift;
*dest_value -= rest;
*dest_value <<= dec->granule_shift;
*dest_value += rest;
@ -893,47 +883,45 @@ theora_handle_type_packet (GstTheoraDec * dec, ogg_packet * packet)
/* theora has:
*
* width/height : dimension of the encoded frame
* frame_width/frame_height : dimension of the visible part
* offset_x/offset_y : offset in encoded frame where visible part starts
* pic_width/pic_height : dimension of the visible part
* pic_x/pic_y : offset in encoded frame where visible part starts
*/
GST_DEBUG_OBJECT (dec, "dimension %dx%d, PAR %d/%d", dec->info.width,
dec->info.height, par_num, par_den);
GST_DEBUG_OBJECT (dec, "dimension %dx%d, PAR %d/%d", dec->info.pic_width,
dec->info.pic_height, par_num, par_den);
GST_DEBUG_OBJECT (dec, "frame dimension %dx%d, offset %d:%d",
dec->info.frame_width, dec->info.frame_height,
dec->info.offset_x, dec->info.offset_y);
dec->info.pic_width, dec->info.pic_height,
dec->info.pic_x, dec->info.pic_y);
if (dec->info.pixelformat == OC_PF_420) {
if (dec->info.pixel_fmt == TH_PF_420) {
dec->output_bpp = 12; /* Average bits per pixel. */
fourcc = GST_MAKE_FOURCC ('I', '4', '2', '0');
} else if (dec->info.pixelformat == OC_PF_422) {
} else if (dec->info.pixel_fmt == TH_PF_422) {
dec->output_bpp = 16;
fourcc = GST_MAKE_FOURCC ('Y', '4', '2', 'B');
} else if (dec->info.pixelformat == OC_PF_444) {
} else if (dec->info.pixel_fmt == TH_PF_444) {
dec->output_bpp = 24;
fourcc = GST_MAKE_FOURCC ('Y', '4', '4', '4');
} else {
GST_ERROR_OBJECT (dec, "Invalid pixel format %d", dec->info.pixelformat);
GST_ERROR_OBJECT (dec, "Invalid pixel format %d", dec->info.pixel_fmt);
return GST_FLOW_ERROR;
}
if (dec->crop) {
/* add black borders to make width/height/offsets even. we need this because
* we cannot express an offset to the peer plugin. */
dec->width =
GST_ROUND_UP_2 (dec->info.frame_width + (dec->info.offset_x & 1));
dec->height =
GST_ROUND_UP_2 (dec->info.frame_height + (dec->info.offset_y & 1));
dec->offset_x = dec->info.offset_x & ~1;
dec->offset_y = dec->info.offset_y & ~1;
dec->width = GST_ROUND_UP_2 (dec->info.pic_width + (dec->info.pic_x & 1));
dec->height = GST_ROUND_UP_2 (dec->info.pic_height + (dec->info.pic_y & 1));
dec->offset_x = dec->info.pic_x & ~1;
dec->offset_y = dec->info.pic_y & ~1;
} else {
/* no cropping, use the encoded dimensions */
dec->width = dec->info.width;
dec->height = dec->info.height;
dec->width = dec->info.pic_width;
dec->height = dec->info.pic_height;
dec->offset_x = 0;
dec->offset_y = 0;
}
dec->granule_shift = _theora_ilog (dec->info.keyframe_frequency_force - 1);
dec->granule_shift = dec->info.keyframe_granule_shift;
/* With libtheora-1.0beta1 the granulepos scheme was changed:
* where earlier the granulepos refered to the index/beginning
@ -949,7 +937,7 @@ theora_handle_type_packet (GstTheoraDec * dec, ogg_packet * packet)
dec->width, dec->height, dec->offset_x, dec->offset_y);
/* done */
theora_decode_init (&dec->state, &dec->info);
dec->decoder = th_decode_alloc (&dec->info, dec->setup);
caps = gst_caps_new_simple ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, fourcc,
@ -982,10 +970,12 @@ static GstFlowReturn
theora_handle_header_packet (GstTheoraDec * dec, ogg_packet * packet)
{
GstFlowReturn res;
int ret;
GST_DEBUG_OBJECT (dec, "parsing header packet");
if (theora_decode_header (&dec->info, &dec->comment, packet))
ret = th_decode_headerin (&dec->info, &dec->comment, &dec->setup, packet);
if (ret < 0)
goto header_read_error;
switch (packet->packet[0]) {
@ -1129,7 +1119,8 @@ theora_dec_push_reverse (GstTheoraDec * dec, GstBuffer * buf)
/* Allocate buffer and copy image data into Y444 format */
static GstFlowReturn
theora_handle_444_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
theora_handle_444_image (GstTheoraDec * dec, th_ycbcr_buffer buf,
GstBuffer ** out)
{
gint width = dec->width;
gint height = dec->height;
@ -1141,8 +1132,8 @@ theora_handle_444_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
stride = GST_ROUND_UP_4 (width);
out_size = stride * height * 3;
/* now copy over the area contained in offset_x,offset_y,
* frame_width, frame_height */
/* now copy over the area contained in pic_x, pic_y,
* pic_width, pic_height */
result =
gst_pad_alloc_buffer_and_set_caps (dec->srcpad, GST_BUFFER_OFFSET_NONE,
out_size, GST_PAD_CAPS (dec->srcpad), out);
@ -1155,14 +1146,13 @@ theora_handle_444_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
for (plane = 0; plane < 3; plane++) {
dest = GST_BUFFER_DATA (*out) + plane * stride * height;
src = (plane == 0 ? yuv->y : (plane == 1 ? yuv->u : yuv->v)) +
dec->offset_x + dec->offset_y * yuv->y_stride;
src = buf[plane].data + dec->offset_x + dec->offset_y * buf[plane].stride;
for (i = 0; i < height; i++) {
memcpy (dest, src, width);
dest += stride;
src += yuv->y_stride;
src += buf[0].stride;
}
}
}
@ -1178,7 +1168,8 @@ no_buffer:
/* Allocate buffer and copy image data into Y42B format */
static GstFlowReturn
theora_handle_422_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
theora_handle_422_image (GstTheoraDec * dec, th_ycbcr_buffer buf,
GstBuffer ** out)
{
gint width = dec->width;
gint uvwidth = dec->width / 2;
@ -1193,8 +1184,8 @@ theora_handle_422_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
uvstride = GST_ROUND_UP_8 (width) / 2;
out_size = ystride * height + uvstride * height * 2;
/* now copy over the area contained in offset_x,offset_y,
* frame_width, frame_height */
/* now copy over the area contained in pic_x, pic_y,
* pic_width, pic_height */
result =
gst_pad_alloc_buffer_and_set_caps (dec->srcpad, GST_BUFFER_OFFSET_NONE,
out_size, GST_PAD_CAPS (dec->srcpad), out);
@ -1203,24 +1194,24 @@ theora_handle_422_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
dst = GST_BUFFER_DATA (*out);
src = yuv->y;
src = buf[0].data;
for (i = 0; i < height; i++) {
memcpy (dst, src, width);
src += yuv->y_stride;
src += buf[0].stride;
dst += ystride;
}
src = yuv->u;
src = buf[1].data;
for (i = 0; i < height; i++) {
memcpy (dst, src, uvwidth);
src += yuv->uv_stride;
src += buf[1].stride;
dst += uvstride;
}
src = yuv->v;
src = buf[2].data;
for (i = 0; i < height; i++) {
memcpy (dst, src, uvwidth);
src += yuv->uv_stride;
src += buf[2].stride;
dst += uvstride;
}
@ -1234,7 +1225,8 @@ no_buffer:
/* Allocate buffer and copy image data into I420 format */
static GstFlowReturn
theora_handle_420_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
theora_handle_420_image (GstTheoraDec * dec, th_ycbcr_buffer buf,
GstBuffer ** out)
{
gint width = dec->width;
gint height = dec->height;
@ -1254,8 +1246,8 @@ theora_handle_420_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
out_size =
stride_y * GST_ROUND_UP_2 (height) + stride_uv * GST_ROUND_UP_2 (height);
/* now copy over the area contained in offset_x,offset_y,
* frame_width, frame_height */
/* now copy over the area contained in pic_x, pic_y,
* pic_width, pic_height */
result =
gst_pad_alloc_buffer_and_set_caps (dec->srcpad, GST_BUFFER_OFFSET_NONE,
out_size, GST_PAD_CAPS (dec->srcpad), out);
@ -1283,28 +1275,28 @@ theora_handle_420_image (GstTheoraDec * dec, yuv_buffer * yuv, GstBuffer ** out)
GST_LOG_OBJECT (dec, "plane 1, offset %d", dest_u - dest_y);
GST_LOG_OBJECT (dec, "plane 2, offset %d", dest_v - dest_y);
src_y = yuv->y + dec->offset_x + dec->offset_y * yuv->y_stride;
src_y = buf[0].data + dec->offset_x + dec->offset_y * buf[0].stride;
for (i = 0; i < height; i++) {
memcpy (dest_y, src_y, width);
dest_y += stride_y;
src_y += yuv->y_stride;
src_y += buf[0].stride;
}
offset = dec->offset_x / 2 + dec->offset_y / 2 * yuv->uv_stride;
offset = dec->offset_x / 2 + dec->offset_y / 2 * buf[1].stride;
src_u = yuv->u + offset;
src_v = yuv->v + offset;
src_u = buf[1].data + offset;
src_v = buf[2].data + offset;
for (i = 0; i < cheight; i++) {
memcpy (dest_u, src_u, cwidth);
memcpy (dest_v, src_v, cwidth);
dest_u += stride_uv;
src_u += yuv->uv_stride;
src_u += buf[1].stride;
dest_v += stride_uv;
src_v += yuv->uv_stride;
src_v += buf[2].stride;
}
}
no_buffer:
@ -1320,10 +1312,11 @@ theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
GstClockTime outtime)
{
/* normal data packet */
yuv_buffer yuv;
th_ycbcr_buffer buf;
GstBuffer *out;
gboolean keyframe;
GstFlowReturn result;
ogg_int64_t gp;
if (G_UNLIKELY (!dec->have_header))
goto not_initialized;
@ -1341,7 +1334,7 @@ theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
GST_DEBUG_OBJECT (dec, "parsing data packet");
/* this does the decoding */
if (G_UNLIKELY (theora_decode_packetin (&dec->state, packet)))
if (G_UNLIKELY (th_decode_packetin (dec->decoder, packet, &gp)))
goto decode_error;
if (outtime != -1) {
@ -1366,19 +1359,19 @@ theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet,
/* this does postprocessing and set up the decoded frame
* pointers in our yuv variable */
if (G_UNLIKELY (theora_decode_YUVout (&dec->state, &yuv) < 0))
if (G_UNLIKELY (th_decode_ycbcr_out (dec->decoder, buf) < 0))
goto no_yuv;
if (G_UNLIKELY ((yuv.y_width != dec->info.width)
|| (yuv.y_height != dec->info.height)))
if (G_UNLIKELY ((buf[0].width != dec->info.frame_width)
|| (buf[0].height != dec->info.frame_height)))
goto wrong_dimensions;
if (dec->info.pixelformat == OC_PF_420) {
result = theora_handle_420_image (dec, &yuv, &out);
} else if (dec->info.pixelformat == OC_PF_422) {
result = theora_handle_422_image (dec, &yuv, &out);
} else if (dec->info.pixelformat == OC_PF_444) {
result = theora_handle_444_image (dec, &yuv, &out);
if (dec->info.pixel_fmt == TH_PF_420) {
result = theora_handle_420_image (dec, buf, &out);
} else if (dec->info.pixel_fmt == TH_PF_422) {
result = theora_handle_422_image (dec, buf, &out);
} else if (dec->info.pixel_fmt == TH_PF_444) {
result = theora_handle_444_image (dec, buf, &out);
} else {
g_assert_not_reached ();
}
@ -1709,8 +1702,8 @@ theora_dec_change_state (GstElement * element, GstStateChange transition)
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
theora_info_init (&dec->info);
theora_comment_init (&dec->comment);
th_info_clear (&dec->info);
th_comment_clear (&dec->comment);
GST_DEBUG_OBJECT (dec, "Setting have_header to FALSE in READY->PAUSED");
dec->have_header = FALSE;
dec->have_par = FALSE;
@ -1728,9 +1721,12 @@ theora_dec_change_state (GstElement * element, GstStateChange transition)
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
theora_clear (&dec->state);
theora_comment_clear (&dec->comment);
theora_info_clear (&dec->info);
th_info_clear (&dec->info);
th_comment_clear (&dec->comment);
th_setup_free (dec->setup);
dec->setup = NULL;
th_decode_free (dec->decoder);
dec->decoder = NULL;
gst_theora_dec_reset (dec);
break;
case GST_STATE_CHANGE_READY_TO_NULL: