+/*
+ * Copyright (C) 2013 Sebastian Dröge <sebastian@centricular.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstopenexrdec.h"
+
+#include <gst/base/base.h>
+#include <string.h>
+
+#include <ImfRgbaFile.h>
+#include <ImfIO.h>
+using namespace Imf;
+using namespace Imath;
+
+/* Memory stream reader */
+class MemIStream:public IStream
+{
+public:
+ MemIStream (const char *file_name, const guint8 * data,
+ gsize size):IStream (file_name), data (data), offset (0), size (size)
+ {
+ }
+
+ virtual bool read (char c[], int n);
+ virtual Int64 tellg ();
+ virtual void seekg (Int64 pos);
+ virtual void clear ();
+
+private:
+ const guint8 *data;
+ gsize offset, size;
+};
+
+bool MemIStream::read (char c[], int n)
+{
+ if (offset + n > size)
+ throw
+ Iex::InputExc ("Unexpected end of file");
+
+ memcpy (c, data + offset, n);
+ offset += n;
+
+ return (offset == size);
+}
+
+Int64 MemIStream::tellg ()
+{
+ return offset;
+}
+
+void
+MemIStream::seekg (Int64 pos)
+{
+ offset = pos;
+ if (offset > size)
+ offset = size;
+}
+
+void
+MemIStream::clear ()
+{
+
+}
+
+GST_DEBUG_CATEGORY_STATIC (gst_openexr_dec_debug);
+#define GST_CAT_DEFAULT gst_openexr_dec_debug
+
+static gboolean gst_openexr_dec_start (GstVideoDecoder * decoder);
+static gboolean gst_openexr_dec_stop (GstVideoDecoder * decoder);
+static GstFlowReturn gst_openexr_dec_parse (GstVideoDecoder * decoder,
+ GstVideoCodecFrame * frame, GstAdapter * adapter, gboolean at_eos);
+static gboolean gst_openexr_dec_set_format (GstVideoDecoder * decoder,
+ GstVideoCodecState * state);
+static GstFlowReturn gst_openexr_dec_handle_frame (GstVideoDecoder * decoder,
+ GstVideoCodecFrame * frame);
+static gboolean gst_openexr_dec_decide_allocation (GstVideoDecoder * decoder,
+ GstQuery * query);
+
+static GstStaticPadTemplate gst_openexr_dec_sink_template =
+GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("image/x-exr")
+ );
+
+static GstStaticPadTemplate gst_openexr_dec_src_template =
+GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("ARGB64"))
+ );
+
+#define parent_class gst_openexr_dec_parent_class
+G_DEFINE_TYPE (GstOpenEXRDec, gst_openexr_dec, GST_TYPE_VIDEO_DECODER);
+
+static void
+gst_openexr_dec_class_init (GstOpenEXRDecClass * klass)
+{
+ GstElementClass *element_class;
+ GstVideoDecoderClass *video_decoder_class;
+
+ element_class = (GstElementClass *) klass;
+ video_decoder_class = (GstVideoDecoderClass *) klass;
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_openexr_dec_src_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_openexr_dec_sink_template));
+
+ gst_element_class_set_static_metadata (element_class,
+ "OpenEXR decoder",
+ "Codec/Decoder/Video",
+ "Decode EXR streams", "Sebastian Dröge <sebastian@centricular.com>");
+
+ video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_openexr_dec_start);
+ video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_openexr_dec_stop);
+ video_decoder_class->parse = GST_DEBUG_FUNCPTR (gst_openexr_dec_parse);
+ video_decoder_class->set_format =
+ GST_DEBUG_FUNCPTR (gst_openexr_dec_set_format);
+ video_decoder_class->handle_frame =
+ GST_DEBUG_FUNCPTR (gst_openexr_dec_handle_frame);
+ video_decoder_class->decide_allocation = gst_openexr_dec_decide_allocation;
+
+ GST_DEBUG_CATEGORY_INIT (gst_openexr_dec_debug, "openexrdec", 0,
+ "OpenEXR Decoder");
+}
+
+static void
+gst_openexr_dec_init (GstOpenEXRDec * self)
+{
+ GstVideoDecoder *decoder = (GstVideoDecoder *) self;
+
+ gst_video_decoder_set_packetized (decoder, FALSE);
+}
+
+static gboolean
+gst_openexr_dec_start (GstVideoDecoder * decoder)
+{
+ GstOpenEXRDec *self = GST_OPENEXR_DEC (decoder);
+
+ GST_DEBUG_OBJECT (self, "Starting");
+
+ return TRUE;
+}
+
+static gboolean
+gst_openexr_dec_stop (GstVideoDecoder * video_decoder)
+{
+ GstOpenEXRDec *self = GST_OPENEXR_DEC (video_decoder);
+
+ GST_DEBUG_OBJECT (self, "Stopping");
+
+ if (self->output_state) {
+ gst_video_codec_state_unref (self->output_state);
+ self->output_state = NULL;
+ }
+
+ if (self->input_state) {
+ gst_video_codec_state_unref (self->input_state);
+ self->input_state = NULL;
+ }
+
+ GST_DEBUG_OBJECT (self, "Stopped");
+
+ return TRUE;
+}
+
+static GstFlowReturn
+gst_openexr_dec_parse (GstVideoDecoder * decoder,
+ GstVideoCodecFrame * frame, GstAdapter * adapter, gboolean at_eos)
+{
+ GstByteReader reader;
+ const guint8 *data;
+ gsize size;
+ guint32 u32;
+ guint64 u64;
+ guint8 version;
+ gboolean single_tile, long_name;
+ gboolean non_image, multipart;
+ /* *INDENT-OFF * */
+ struct
+ {
+ guint32 x1, y1, x2, y2;
+ } data_window = {
+ (guint32) - 1, (guint32) - 1, (guint32) - 1, (guint32) - 1};
+ struct
+ {
+ guint32 w, h;
+ guint8 mode;
+ } tile_desc = {
+ (guint32) - 1, (guint32) - 1, (guint8) - 1};
+ guint8 compression = (guint8) - 1;
+ guint32 chunk_count = (guint32) - 1;
+ /* *INDENT-ON * */
+
+ size = gst_adapter_available (adapter);
+
+ GST_DEBUG_OBJECT (decoder, "Parsing OpenEXR image data %" G_GSIZE_FORMAT,
+ size);
+
+ if (size < 8)
+ goto need_more_data;
+
+ data = (const guint8 *) gst_adapter_map (adapter, size);
+
+ gst_byte_reader_init (&reader, data, size);
+
+ /* Must start with the OpenEXR magic number */
+ if (!gst_byte_reader_peek_uint32_le (&reader, &u32))
+ goto need_more_data;
+
+ if (u32 != 0x01312f76) {
+ for (;;) {
+ guint offset;
+
+ offset = gst_byte_reader_masked_scan_uint32 (&reader, 0xffffffff,
+ 0x762f3101, 0, gst_byte_reader_get_remaining (&reader));
+
+ if (offset == (guint) - 1) {
+ gst_adapter_flush (adapter,
+ gst_byte_reader_get_remaining (&reader) - 4);
+ goto need_more_data;
+ }
+
+ if (!gst_byte_reader_skip (&reader, offset))
+ goto need_more_data;
+
+ if (!gst_byte_reader_peek_uint32_le (&reader, &u32))
+ goto need_more_data;
+
+ if (u32 == 0x01312f76) {
+ /* We're skipping, go out, we'll be back */
+ gst_adapter_flush (adapter, gst_byte_reader_get_pos (&reader));
+ goto need_more_data;
+ }
+ if (!gst_byte_reader_skip (&reader, 4))
+ goto need_more_data;
+ }
+ }
+
+ /* Now we're at the magic number */
+ if (!gst_byte_reader_skip (&reader, 4))
+ goto need_more_data;
+
+ /* version and flags */
+ if (!gst_byte_reader_get_uint32_le (&reader, &u32))
+ goto need_more_data;
+
+ version = (u32 & 0xff);
+ if (version != 1 && version != 2) {
+ GST_ERROR_OBJECT (decoder, "Unsupported OpenEXR version %d", version);
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+ single_tile = ! !(u32 & 0x200);
+ long_name = ! !(u32 & 0x400);
+ non_image = ! !(u32 & 0x800);
+ multipart = ! !(u32 & 0x1000);
+ GST_DEBUG_OBJECT (decoder,
+ "OpenEXR image version %d, single tile %d, long name %d, non-image %d, multipart %d",
+ version, single_tile, long_name, non_image, multipart);
+
+ /* attributes */
+ if (multipart) {
+ GST_WARNING_OBJECT (decoder, "Multipart files not supported");
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+ if (non_image) {
+ GST_WARNING_OBJECT (decoder, "Deep-data images not supported");
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+
+ /* Read attributes */
+ for (;;) {
+ const gchar *name, *type;
+ guint8 u8;
+
+ if (!gst_byte_reader_peek_uint8 (&reader, &u8))
+ goto need_more_data;
+ if (u8 == 0) {
+ gst_byte_reader_skip (&reader, 1);
+ break;
+ }
+
+ if (!gst_byte_reader_get_string_utf8 (&reader, &name))
+ goto need_more_data;
+ if (!gst_byte_reader_get_string_utf8 (&reader, &type))
+ goto need_more_data;
+ if (!gst_byte_reader_get_uint32_le (&reader, &u32))
+ goto need_more_data;
+ if (gst_byte_reader_get_remaining (&reader) < u32)
+ goto need_more_data;
+
+ if (strcmp (name, "dataWindow") == 0) {
+ if (strcmp (type, "box2i") != 0 || u32 != 16)
+ return GST_FLOW_ERROR;
+
+ data_window.x1 = gst_byte_reader_get_uint32_le_unchecked (&reader);
+ data_window.y1 = gst_byte_reader_get_uint32_le_unchecked (&reader);
+ data_window.x2 = gst_byte_reader_get_uint32_le_unchecked (&reader);
+ data_window.y2 = gst_byte_reader_get_uint32_le_unchecked (&reader);
+ } else if (strcmp (name, "tiles") == 0) {
+ if (strcmp (type, "tiledesc") != 0 || u32 != 9)
+ return GST_FLOW_ERROR;
+ tile_desc.w = gst_byte_reader_get_uint32_le_unchecked (&reader);
+ tile_desc.h = gst_byte_reader_get_uint32_le_unchecked (&reader);
+ tile_desc.mode = gst_byte_reader_get_uint8_unchecked (&reader);
+ } else if (strcmp (name, "compression") == 0) {
+ if (strcmp (type, "compression") != 0 || u32 != 1)
+ return GST_FLOW_ERROR;
+ compression = gst_byte_reader_get_uint8_unchecked (&reader);
+ } else if (strcmp (name, "chunkCount") == 0) {
+ if (strcmp (type, "int") != 0 || u32 != 4)
+ return GST_FLOW_ERROR;
+ chunk_count = gst_byte_reader_get_uint32_le_unchecked (&reader);
+ } else {
+ gst_byte_reader_skip_unchecked (&reader, u32);
+ }
+ }
+
+ if (data_window.x1 == (guint32) - 1)
+ return GST_FLOW_ERROR;
+ if (data_window.x2 < data_window.x1)
+ return GST_FLOW_ERROR;
+ if (data_window.y2 < data_window.y1)
+ return GST_FLOW_ERROR;
+ if (compression == (guint8) - 1)
+ return GST_FLOW_ERROR;
+ if (single_tile && tile_desc.w == (guint32) - 1)
+ return GST_FLOW_ERROR;
+
+ GST_DEBUG_OBJECT (decoder, "Have data window (%u, %u)x(%u, %u)",
+ data_window.x1, data_window.y1, data_window.x2, data_window.y2);
+ GST_DEBUG_OBJECT (decoder, "Have compression %u", compression);
+ if (single_tile)
+ GST_DEBUG_OBJECT (decoder, "Have tiles (%u, %u), mode %u", tile_desc.w,
+ tile_desc.h, tile_desc.mode);
+
+ /* offset table */
+ if (chunk_count == (guint32) - 1) {
+ if (single_tile) {
+ guint xt, yt;
+
+ xt = data_window.x2 - data_window.x1 + 1;
+ xt = (xt + tile_desc.w - 1) / tile_desc.w;
+
+ yt = data_window.y2 - data_window.y1 + 1;
+ yt = (yt + tile_desc.h - 1) / tile_desc.h;
+
+ chunk_count = xt * yt;
+ GST_DEBUG_OBJECT (decoder, "Have %ux%u tiles", xt, yt);
+ } else {
+ chunk_count = data_window.y2 - data_window.y1 + 1;
+
+ switch (compression) {
+ case 0: /* NO */
+ case 1: /* RLE */
+ case 2: /* ZIPS */
+ break;
+ case 3: /* ZIP */
+ case 5: /* PXR24 */
+ chunk_count = (chunk_count + 15) / 16;
+ break;
+ case 4: /* PIZ */
+ case 6: /* B44 */
+ case 7: /* B44A */
+ chunk_count = (chunk_count + 31) / 32;
+ break;
+ default:
+ GST_WARNING_OBJECT (decoder, "Unsupported compression %u",
+ compression);
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+ }
+ } else {
+ GST_WARNING_OBJECT (decoder, "Chunk data not supported");
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+
+ if (gst_byte_reader_get_remaining (&reader) < chunk_count * 8)
+ goto need_more_data;
+
+ gst_byte_reader_skip_unchecked (&reader, (chunk_count - 1) * 8);
+ u64 = gst_byte_reader_get_uint64_le_unchecked (&reader);
+
+ GST_DEBUG_OBJECT (decoder, "Offset of last chunk %" G_GUINT64_FORMAT, u64);
+
+ /* pixel data */
+
+ /* go to the last pixel data chunk */
+ if (!gst_byte_reader_set_pos (&reader, u64))
+ goto need_more_data;
+
+ /* and read its size and skip it */
+ if (single_tile) {
+ if (!gst_byte_reader_skip (&reader, 4 * 4))
+ goto need_more_data;
+ if (!gst_byte_reader_get_uint32_le (&reader, &u32))
+ goto need_more_data;
+ if (!gst_byte_reader_skip (&reader, u32))
+ goto need_more_data;
+ } else {
+ if (!gst_byte_reader_skip (&reader, 4))
+ goto need_more_data;
+ if (!gst_byte_reader_get_uint32_le (&reader, &u32))
+ goto need_more_data;
+ if (!gst_byte_reader_skip (&reader, u32))
+ goto need_more_data;
+ }
+
+ GST_DEBUG_OBJECT (decoder, "Have complete image of size %u",
+ gst_byte_reader_get_pos (&reader));
+
+ gst_video_decoder_add_to_frame (decoder, gst_byte_reader_get_pos (&reader));
+
+ return gst_video_decoder_have_frame (decoder);
+
+need_more_data:
+ GST_DEBUG_OBJECT (decoder, "Need more data");
+ return GST_VIDEO_DECODER_FLOW_NEED_DATA;
+}
+
+static gboolean
+gst_openexr_dec_set_format (GstVideoDecoder * decoder,
+ GstVideoCodecState * state)
+{
+ GstOpenEXRDec *self = GST_OPENEXR_DEC (decoder);
+
+ GST_DEBUG_OBJECT (self, "Setting format: %" GST_PTR_FORMAT, state->caps);
+
+ if (self->input_state)
+ gst_video_codec_state_unref (self->input_state);
+ self->input_state = gst_video_codec_state_ref (state);
+
+ return TRUE;
+}
+
+static GstFlowReturn
+gst_openexr_dec_negotiate (GstOpenEXRDec * self, RgbaInputFile * file)
+{
+ GstVideoFormat format;
+ gint width, height;
+
+ /* TODO: Use displayWindow here and also support output of ARGB_F16 */
+ format = GST_VIDEO_FORMAT_ARGB64;
+ Box2i dw = file->dataWindow ();
+ width = dw.max.x - dw.min.x + 1;
+ height = dw.max.y - dw.min.y + 1;
+
+ if (!self->output_state ||
+ self->output_state->info.finfo->format != format ||
+ self->output_state->info.width != width ||
+ self->output_state->info.height != height) {
+ if (self->output_state)
+ gst_video_codec_state_unref (self->output_state);
+ self->output_state =
+ gst_video_decoder_set_output_state (GST_VIDEO_DECODER (self), format,
+ width, height, self->input_state);
+
+ GST_DEBUG_OBJECT (self, "Have image of size %dx%d", width, height);
+
+ if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self)))
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+
+ return GST_FLOW_OK;
+}
+
+static GstFlowReturn
+gst_openexr_dec_handle_frame (GstVideoDecoder * decoder,
+ GstVideoCodecFrame * frame)
+{
+ GstOpenEXRDec *self = GST_OPENEXR_DEC (decoder);
+ GstFlowReturn ret = GST_FLOW_OK;
+ gint64 deadline;
+ GstMapInfo map;
+ GstVideoFrame vframe;
+
+ GST_DEBUG_OBJECT (self, "Handling frame");
+
+ deadline = gst_video_decoder_get_max_decode_time (decoder, frame);
+ if (deadline < 0) {
+ GST_LOG_OBJECT (self, "Dropping too late frame: deadline %" G_GINT64_FORMAT,
+ deadline);
+ ret = gst_video_decoder_drop_frame (decoder, frame);
+ return ret;
+ }
+
+ if (!gst_buffer_map (frame->input_buffer, &map, GST_MAP_READ)) {
+ gst_video_codec_frame_unref (frame);
+
+ GST_ELEMENT_ERROR (self, CORE, FAILED,
+ ("Failed to map input buffer"), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+ /* Now read the file and catch any exceptions */
+ MemIStream *istr;
+ RgbaInputFile *file;
+ try {
+ istr =
+ new
+ MemIStream (gst_pad_get_stream_id (GST_VIDEO_DECODER_SINK_PAD
+ (decoder)), map.data, map.size);
+ }
+ catch (Iex::BaseExc e) {
+ gst_video_codec_frame_unref (frame);
+
+ GST_ELEMENT_ERROR (self, CORE, FAILED,
+ ("Failed to create input stream"), (NULL));
+ return GST_FLOW_ERROR;
+ }
+ try {
+ file = new RgbaInputFile (*istr);
+ }
+ catch (Iex::BaseExc e) {
+ delete istr;
+ gst_video_codec_frame_unref (frame);
+
+ GST_ELEMENT_ERROR (self, CORE, FAILED,
+ ("Failed to read OpenEXR stream"), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+ ret = gst_openexr_dec_negotiate (self, file);
+ if (ret != GST_FLOW_OK) {
+ delete file;
+ delete istr;
+ gst_buffer_unmap (frame->input_buffer, &map);
+ gst_video_codec_frame_unref (frame);
+
+ GST_ELEMENT_ERROR (self, CORE, NEGOTIATION,
+ ("Failed to negotiate"), (NULL));
+ return ret;
+ }
+
+ ret = gst_video_decoder_allocate_output_frame (decoder, frame);
+ if (ret != GST_FLOW_OK) {
+ delete file;
+ delete istr;
+ gst_buffer_unmap (frame->input_buffer, &map);
+ gst_video_codec_frame_unref (frame);
+
+ GST_ELEMENT_ERROR (self, CORE, FAILED,
+ ("Failed to allocate output buffer"), (NULL));
+ return ret;
+ }
+
+ if (!gst_video_frame_map (&vframe, &self->output_state->info,
+ frame->output_buffer, GST_MAP_WRITE)) {
+ delete file;
+ delete istr;
+ gst_buffer_unmap (frame->input_buffer, &map);
+ gst_video_codec_frame_unref (frame);
+
+ GST_ELEMENT_ERROR (self, CORE, FAILED,
+ ("Failed to map output buffer"), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+ /* Decode the file */
+ Box2i dw = file->dataWindow ();
+ int width = dw.max.x - dw.min.x + 1;
+ int height = dw.max.y - dw.min.y + 1;
+ Rgba *fb = new Rgba[width * height];
+
+ try {
+ file->setFrameBuffer (fb - dw.min.x - dw.min.y * width, 1, width);
+ file->readPixels (dw.min.y, dw.max.y);
+ } catch (Iex::BaseExc e) {
+ delete[](fb);
+ delete file;
+ delete istr;
+ gst_buffer_unmap (frame->input_buffer, &map);
+ gst_video_frame_unmap (&vframe);
+
+ GST_ELEMENT_ERROR (self, CORE, FAILED, ("Failed to read pixels"), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+ /* And convert from ARGB64_F16 to ARGB64 */
+ gint i, j;
+ guint16 *dest = (guint16 *) GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0);
+ guint dstride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
+ Rgba *ptr = fb;
+
+ /* TODO: Use displayWindow here and also support output of ARGB_F16
+ * and add a conversion filter element that can change exposure and
+ * other things */
+ for (i = 0; i < height; i++) {
+ for (j = 0; j < width; j++) {
+ dest[4 * j + 0] = CLAMP (((float) ptr->a) * 65536, 0, 65535);
+ dest[4 * j + 1] = CLAMP (((float) ptr->r) * 65536, 0, 65535);
+ dest[4 * j + 2] = CLAMP (((float) ptr->g) * 65536, 0, 65535);
+ dest[4 * j + 3] = CLAMP (((float) ptr->b) * 65536, 0, 65535);
+ ptr++;
+ }
+ dest += dstride / 2;
+ }
+
+ delete[](fb);
+ delete file;
+ delete istr;
+ gst_buffer_unmap (frame->input_buffer, &map);
+ gst_video_frame_unmap (&vframe);
+
+ ret = gst_video_decoder_finish_frame (decoder, frame);
+
+ return ret;
+}
+
+static gboolean
+gst_openexr_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
+{
+ GstBufferPool *pool;
+ GstStructure *config;
+
+ if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
+ query))
+ return FALSE;
+
+ g_assert (gst_query_get_n_allocation_pools (query) > 0);
+ gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
+ g_assert (pool != NULL);
+
+ config = gst_buffer_pool_get_config (pool);
+ if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
+ gst_buffer_pool_config_add_option (config,
+ GST_BUFFER_POOL_OPTION_VIDEO_META);
+ }
+ gst_buffer_pool_set_config (pool, config);
+ gst_object_unref (pool);
+
+ return TRUE;
+}
projects / platform / upstream / gstreamer.git / commitdiff