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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-28 03:00:35 +00:00
pnmenc: Tidy up code, support BE/LE GRAY16 properly
Remove code that dealt with odd strides separately - there's not really any overhead to just using 1 codepath for both matched and unmatched stride output. Add separate codepaths for BE vs LE GRAY16 input so they're handled properly
This commit is contained in:
Jan Schmidt
parent
30503f07ae
commit
fa2d98afe2
1 changed files with 98 additions and 108 deletions
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@ -189,12 +189,6 @@ gst_pnmenc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame)
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guint i, j;
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guint maxbytes_per_pixel, str_len;
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gchar format_str[4];
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union
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{
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guint8 *ui8;
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guint16 *ui16;
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gpointer ptr;
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} data;
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pnmenc = GST_PNMENC (encoder);
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info = &pnmenc->input_state->info;
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@ -253,120 +247,116 @@ gst_pnmenc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame)
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ret = GST_FLOW_ERROR;
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goto done;
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}
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memcpy (omap.data, header, strlen (header));
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/* Copy out the header first */
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head_size = strlen (header);
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memcpy (omap.data, header, head_size);
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if (pnmenc->info.encoding == GST_PNM_ENCODING_ASCII) {
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data.ptr = imap.data;
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/* We need to convert to ASCII */
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if (pnmenc->info.width % 4 != 0) {
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/* Convert from gstreamer rowstride to PNM rowstride */
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if (pnmenc->info.type == GST_PNM_TYPE_PIXMAP) {
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o_rowstride = 3 * pnmenc->info.width;
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} else {
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o_rowstride = pnmenc->info.width;
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}
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switch GST_VIDEO_INFO_FORMAT
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(info) {
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case GST_VIDEO_FORMAT_RGB:
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case GST_VIDEO_FORMAT_GRAY8:
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i_rowstride = GST_VIDEO_FRAME_COMP_STRIDE (pnmenc->input_state, 0);
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for (i = 0; i < pnmenc->info.height; i++) {
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index = i * i_rowstride;
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for (j = 0; j < o_rowstride; j++, bytes++, index++) {
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g_snprintf ((char *) omap.data + head_size, maxbytes_per_pixel,
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format_str, data.ui8[index]);
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head_size += str_len;
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omap.data[head_size++] = ' ';
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/* Add new line so that file will not end up with sinle big line */
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if (!((bytes + 1) % 20))
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omap.data[head_size++] = '\n';
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}
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}
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break;
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case GST_VIDEO_FORMAT_GRAY16_BE:
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case GST_VIDEO_FORMAT_GRAY16_LE:
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i_rowstride =
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GST_VIDEO_FRAME_COMP_STRIDE (pnmenc->input_state, 0) / 2;
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for (i = 0; i < pnmenc->info.height; i++) {
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index = i * i_rowstride;
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for (j = 0; j < o_rowstride; j++, bytes++, index++) {
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g_snprintf ((char *) omap.data + head_size, maxbytes_per_pixel,
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format_str, data.ui16[index]);
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head_size += str_len;
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omap.data[head_size++] = ' ';
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/* Add new line so that file will not end up with sinle big line */
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if (!((bytes + 1) % 20))
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omap.data[head_size++] = '\n';
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}
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}
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break;
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default:
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GST_ERROR_OBJECT (encoder, "Unhandled format %s",
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gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (info)));
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gst_buffer_unmap (frame->output_buffer, &omap);
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gst_buffer_unmap (frame->input_buffer, &imap);
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g_free (header);
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return GST_FLOW_ERROR;
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}
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/* Convert from gstreamer rowstride to PNM rowstride as we go */
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if (pnmenc->info.type == GST_PNM_TYPE_PIXMAP) {
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o_rowstride = 3 * pnmenc->info.width;
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} else {
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switch GST_VIDEO_INFO_FORMAT
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(info) {
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case GST_VIDEO_FORMAT_RGB:
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case GST_VIDEO_FORMAT_GRAY8:
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for (i = 0; i < pixels; i++) {
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g_snprintf ((char *) omap.data + head_size, maxbytes_per_pixel,
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format_str, data.ui8[i]);
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head_size += str_len;
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omap.data[head_size++] = ' ';
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if (!((i + 1) % 20))
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omap.data[head_size++] = '\n';
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}
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break;
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case GST_VIDEO_FORMAT_GRAY16_BE:
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case GST_VIDEO_FORMAT_GRAY16_LE:
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for (i = 0; i < pixels; i++) {
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g_snprintf ((char *) omap.data + head_size, maxbytes_per_pixel,
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format_str, data.ui16[i]);
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head_size += str_len;
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omap.data[head_size++] = ' ';
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if (!((i + 1) % 20))
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omap.data[head_size++] = '\n';
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}
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break;
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default:
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GST_ERROR_OBJECT (encoder, "Unhandled format %s",
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gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (info)));
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gst_buffer_unmap (frame->output_buffer, &omap);
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gst_buffer_unmap (frame->input_buffer, &imap);
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g_free (header);
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return GST_FLOW_ERROR;
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}
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o_rowstride = pnmenc->info.width;
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}
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} else {
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/* Need to convert from GStreamer rowstride to PNM rowstride */
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if (pnmenc->info.width % 4 != 0) {
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if (pnmenc->info.type == GST_PNM_TYPE_PIXMAP) {
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o_rowstride = 3 * pnmenc->info.width * bytesize;
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} else {
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o_rowstride = pnmenc->info.width * bytesize;
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}
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i_rowstride = GST_VIDEO_FRAME_COMP_STRIDE (pnmenc->input_state, 0);
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i_rowstride = GST_VIDEO_FRAME_COMP_STRIDE (pnmenc->input_state, 0);
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for (i = 0; i < pnmenc->info.height; i++)
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memcpy (omap.data + head_size + o_rowstride * i,
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imap.data + i_rowstride * i, o_rowstride);
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switch (GST_VIDEO_INFO_FORMAT (info)) {
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case GST_VIDEO_FORMAT_RGB:
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case GST_VIDEO_FORMAT_GRAY8:
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for (i = 0; i < pnmenc->info.height; i++) {
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index = i * i_rowstride;
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for (j = 0; j < o_rowstride; j++, bytes++, index++) {
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g_snprintf ((char *) omap.data + head_size, maxbytes_per_pixel,
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format_str, imap.data[index]);
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head_size += str_len;
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omap.data[head_size++] = ' ';
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/* Add new line so that file will not end up with single big line */
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if (!((bytes + 1) % 20))
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omap.data[head_size++] = '\n';
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}
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}
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break;
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case GST_VIDEO_FORMAT_GRAY16_BE:
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for (i = 0; i < pnmenc->info.height; i++) {
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index = i * i_rowstride;
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for (j = 0; j < o_rowstride; j++, bytes++, index += 2) {
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g_snprintf ((char *) omap.data + head_size, maxbytes_per_pixel,
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format_str, GST_READ_UINT16_BE (imap.data + index));
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head_size += str_len;
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omap.data[head_size++] = ' ';
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/* Add new line so that file will not end up with single big line */
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if (!((bytes + 1) % 20))
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omap.data[head_size++] = '\n';
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}
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}
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break;
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case GST_VIDEO_FORMAT_GRAY16_LE:
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for (i = 0; i < pnmenc->info.height; i++) {
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index = i * i_rowstride;
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for (j = 0; j < o_rowstride; j++, bytes++, index += 2) {
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g_snprintf ((char *) omap.data + head_size, maxbytes_per_pixel,
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format_str, GST_READ_UINT16_LE (imap.data + index));
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head_size += str_len;
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omap.data[head_size++] = ' ';
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/* Add new line so that file will not end up with single big line */
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if (!((bytes + 1) % 20))
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omap.data[head_size++] = '\n';
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}
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}
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break;
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default:
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GST_ERROR_OBJECT (encoder, "Unhandled format %s",
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gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (info)));
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gst_buffer_unmap (frame->output_buffer, &omap);
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gst_buffer_unmap (frame->input_buffer, &imap);
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g_free (header);
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return GST_FLOW_ERROR;
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}
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gst_buffer_set_size (frame->output_buffer, head_size);
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} else {
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guint out_index = head_size;
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/* Binary output. 8-bit, or 16-bit BE */
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if (pnmenc->info.type == GST_PNM_TYPE_PIXMAP) {
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o_rowstride = 3 * pnmenc->info.width * bytesize;
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} else {
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/* size contains complete image size inlcuding header size,
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Exclude header size while copying data */
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memcpy (omap.data + head_size, imap.data, (size - head_size));
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o_rowstride = pnmenc->info.width * bytesize;
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}
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i_rowstride = GST_VIDEO_FRAME_COMP_STRIDE (pnmenc->input_state, 0);
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switch (GST_VIDEO_INFO_FORMAT (info)) {
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case GST_VIDEO_FORMAT_GRAY16_BE:
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for (i = 0; i < pnmenc->info.height; i++) {
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index = i * i_rowstride;
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for (j = 0; j < o_rowstride; j += 2, index += 2) {
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guint16 val = GST_READ_UINT16_LE (imap.data + index);
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GST_WRITE_UINT16_BE (omap.data + out_index, val);
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out_index += 2;
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}
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}
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break;
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case GST_VIDEO_FORMAT_GRAY16_LE:
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for (i = 0; i < pnmenc->info.height; i++) {
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index = i * i_rowstride;
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for (j = 0; j < o_rowstride; j += 2, index += 2) {
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guint16 val = GST_READ_UINT16_LE (imap.data + index);
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GST_WRITE_UINT16_BE (omap.data + out_index, val);
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out_index += 2;
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}
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}
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break;
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default:
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for (i = 0; i < pnmenc->info.height; i++) {
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memcpy (omap.data + head_size + o_rowstride * i,
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imap.data + i_rowstride * i, o_rowstride);
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}
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}
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}
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gst_buffer_unmap (frame->output_buffer, &omap);
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gst_buffer_unmap (frame->input_buffer, &imap);
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g_free (header);
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if ((ret = gst_video_encoder_finish_frame (encoder, frame)) != GST_FLOW_OK)
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goto done;
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