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jpegenc: Put the SOF marker into the caps

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This commit is contained in:
Sebastian Dröge 2013-02-13 12:32:10 +01:00
parent a7ddbc03fe
commit af5c3fe312
2 changed files with 31 additions and 9 deletions
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39
ext/jpeg/gstjpegenc.c
View file

@ -41,6 +41,7 @@
#include "gstjpeg.h"
#include <gst/video/video.h>
#include <gst/video/gstvideometa.h>
#include <gst/base/base.h>
/* experimental */
/* setting smoothig seems to have no effect in libjepeg
@ -109,7 +110,9 @@ GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("image/jpeg, "
"width = (int) [ 16, 65535 ], "
"height = (int) [ 16, 65535 ], " "framerate = (fraction) [ 0/1, MAX ]")
"height = (int) [ 16, 65535 ], "
"framerate = (fraction) [ 0/1, MAX ], "
"sof-marker = (int) { 0, 1, 2, 9 }")
);
static void
@ -228,16 +231,39 @@ gst_jpegenc_term_destination (j_compress_ptr cinfo)
{
GstBuffer *outbuf;
GstJpegEnc *jpegenc = (GstJpegEnc *) (cinfo->client_data);
gsize memory_size = jpegenc->output_map.size - jpegenc->jdest.free_in_buffer;
GstByteReader reader =
GST_BYTE_READER_INIT (jpegenc->output_map.data, memory_size);
guint16 marker;
gint sof_marker = -1;
GST_DEBUG_OBJECT (jpegenc, "gst_jpegenc_chain: term_source");
/* Find the SOF marker */
while (gst_byte_reader_get_uint16_be (&reader, &marker)) {
/* SOF marker */
if (marker >> 4 == 0x0ffc) {
sof_marker = marker & 0x4;
break;
}
}
gst_memory_unmap (jpegenc->output_mem, &jpegenc->output_map);
/* Trim the buffer size. we will push it in the chain function */
gst_memory_resize (jpegenc->output_mem, 0,
jpegenc->output_map.size - jpegenc->jdest.free_in_buffer);
gst_memory_resize (jpegenc->output_mem, 0, memory_size);
jpegenc->output_map.data = NULL;
jpegenc->output_map.size = 0;
if (jpegenc->sof_marker != sof_marker) {
GstVideoCodecState *output;
output =
gst_video_encoder_set_output_state (GST_VIDEO_ENCODER (jpegenc),
gst_caps_new_simple ("image/jpeg", "sof-marker", G_TYPE_INT, sof_marker,
NULL), jpegenc->input_state);
gst_video_codec_state_unref (output);
jpegenc->sof_marker = sof_marker;
}
outbuf = gst_buffer_new ();
gst_buffer_copy_into (outbuf, jpegenc->current_frame->input_buffer,
GST_BUFFER_COPY_METADATA, 0, -1);
@ -295,6 +321,7 @@ gst_jpegenc_reset (GstJpegEnc * enc)
enc->row[i][j] = NULL;
}
}
enc->sof_marker = -1;
}
static void
@ -316,7 +343,6 @@ gst_jpegenc_set_format (GstVideoEncoder * encoder, GstVideoCodecState * state)
GstJpegEnc *enc = GST_JPEGENC (encoder);
gint i;
GstVideoInfo *info = &state->info;
GstVideoCodecState *output;
if (enc->input_state)
gst_video_codec_state_unref (enc->input_state);
@ -355,11 +381,6 @@ gst_jpegenc_set_format (GstVideoEncoder * encoder, GstVideoCodecState * state)
}
enc->planar = (enc->inc[0] == 1 && enc->inc[1] == 1 && enc->inc[2] == 1);
output =
gst_video_encoder_set_output_state (encoder,
gst_caps_new_empty_simple ("image/jpeg"), state);
gst_video_codec_state_unref (output);
gst_jpegenc_resync (enc);
return TRUE;

1
ext/jpeg/gstjpegenc.h
View file

@ -68,6 +68,7 @@ struct _GstJpegEnc
gint h_max_samp;
gint v_max_samp;
gboolean planar;
gint sof_marker;
/* the video buffer */
gint bufsize;
/* the jpeg line buffer */